Diagnosing insomnia takes time

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Give new patients 1 hour, expert advises

– Clinicians should spend 1 hour with patients who present with a chief complaint of insomnia, rather than rushing to a treatment after a 10- to 15-minute office visit, according to John W. Winkelman, MD, PhD.

Doug Brunk/MDedge News
Dr. John W. Winkelman

“Why? Because sleep problems are usually multifactorial, involving psychiatric illness, sleep disorders, medical illness, medication, and poor sleep hygiene/stress,” he said at an annual psychopharmacology update held by the Nevada Psychiatric Association. “There are usually many contributing problems, and sleep quality is only as strong as the weakest link. Maybe you don’t have an hour [to meet with new patients], but you need to give adequate time, otherwise you’re not going to do justice to the problem.”

During that first visit, Dr. Winkelman recommends establishing and prioritizing goals with the patient. “Ask, ‘what is it that bothers you most about your insomnia? Is it the time awake at night, your total sleep time, or how you feel during the day?’ Because we’re going to use different approaches based on that chief complaint of the insomnia,” said Dr. Winkelman, chief of the Massachusetts General Sleep Disorders Clinical Research Program in the department of psychiatry at Harvard Medical School, Boston. “Cognitive-behavioral therapy for insomnia [CBT-I], for instance, is very good at reducing time awake at night. It won’t increase total sleep time, but it reduces time awake at night dramatically.”

According to the DSM-5, insomnia disorder is marked by dissatisfaction with sleep quality or quantity associated with at least one of the following: difficulty initiating sleep, difficulty maintaining sleep, and early morning awakening. “Just getting up to pee five times a night is not insomnia,” he said. “Just taking an hour and a half to fall asleep at the beginning of the night is not insomnia. There has to be distress or dysfunction related to the sleep disturbance, for a minimum of three times per week for 3 months.”

Most sleep problems are transient, but 25%-30% last more than 1 year. The differential diagnosis for chronic insomnia includes primary psychiatric disorders, medications, substances, restless legs syndrome, sleep schedule disorders, and obstructive sleep apnea.

“In general, we do not order sleep studies in people with insomnia unless we suspect sleep apnea; it’s just a waste of time,” said Dr. Winkelman, who is also a professor of psychiatry at Harvard Medical School. Indications for polysomnography include loud snoring plus one of the following: daytime sleepiness, witnessed apneas, or refractory hypertension. Other indications include abnormal behaviors or movements during sleep, unexplained excessive daytime sleepiness, and refractory sleep complaints, especially repetitive brief awakenings.

Many common cognitive and behavioral issues can produce or worsen insomnia, including inconsistent bedtimes and wake times. “That irregular schedule wreaks havoc with sleep,” he said. “It messes up the circadian rhythm. Also, homeostatic drive needs to build up: We need to be awake 16 or more hours in order to be sleepy. If people are sleeping until noon on Sundays and then trying to go to bed at their usual time, 10 or 11 at night, they’ve only been awake 10 or 11 hours. That’s why they’re going to have problems falling asleep. Also, a lot of people doze off after dinner in front of the TV. That doesn’t help.”

Spending excessive time in bed can also trigger or worsen insomnia. Dr. Winkelman recommends that people restrict their access to bed to the number of hours it is reasonable to sleep. “I see a lot of people in their 70s and 80s spending 10 hours in bed,” he said. “It doesn’t sound that crazy, but there is no way they’re going to get 10 hours of sleep. It’s physically impossible, so they spend 2 or 3 hours awake at night.” Clock-watching is another no-no. “In the middle of the night you wake up, look at the clock, and say to yourself: ‘Oh my god, I’ve been awake for 3 hours. I have 4 hours left. I need 7 hours. That means I need to go to sleep now!’ ”



An estimated 30%-40% of people with chronic insomnia have a psychiatric disorder. That means “you have to be thorough in your evaluation and act as if you’re doing a structured interview,” Dr. Winkelman said. “Ask about obsessive-compulsive disorder, generalized anxiety disorder, PTSD, et cetera, so that you understand the complete myriad of psychiatric illnesses, because psychiatric illnesses run in gangs. Comorbidity is generally the rule.”

The first-line treatment for chronic insomnia disorder is CBT-I, a multicomponent approach that includes time-in-bed restriction, stimulus control, cognitive therapy, relaxation therapy, and sleep hygiene. According to Dr. Winkelman, the cornerstone of CBT-I is time-in-bed restriction. “Many people with insomnia are spending 8.5 hours in bed to get 6.5 hours of sleep,” he said. “What you do is restrict access to bed to 6.5 hours; you initially sleep deprive them. Over the first few weeks, they hate you. After a few weeks when they start sleeping well, you start gradually increasing time in bed, but they rarely get back to the 8.5 hours in bed they were spending beforehand.”

Online CBT-I programs such as Sleepio can also be effective for improving sleep latency and wake after sleep onset, but not for total sleep time (JAMA Psychiatry. 2017;74[1]:68-75). “Not everybody responds to CBT; 50% don’t respond at a couple of months,” he said. “These are the people you need to think about medication for.”

Medications commonly used for chronic insomnia include benzodiazepine receptor agonists (BzRAs) – temazepam, eszopiclone, triazolam, zolpidem, and zaleplon are Food and Drug Administration approved – melatonin agonists, orexin antagonists, sedating antidepressants, anticonvulsants, and dopaminergic antagonists. “Each of the agents in these categories has somewhat similar mechanisms of action, and similar efficacy and contraindications,” Dr. Winkelman said. “The best way to divide the benzodiazepine receptor agonists is based on half-life. How long do you want drug on receptor in somebody with insomnia? Probably not much longer than 8 hours. Nevertheless, some psychiatrists love clonazepam, which has a 40-hour half-life. The circumstances under which clonazepam should be used for insomnia are small, such as in people with a daytime anxiety disorder.”

Consider trying triazolam, zolpidem, and zaleplon for patients who have problems falling asleep, he said, while oxazepam and eszopiclone are sensible options for people who have difficulty falling and staying asleep. Clinical response to BzRAs is common, yet only about half of people who have insomnia remit with one of these agents.

Dr. Winkelman said that patients and physicians often ask him whether BzRAs and other agents used as sleep aids are addictive. Abuse is identified when recurrent use causes clinically and functionally significant impairment, such as health problems; disability; and failure to meet major responsibilities at work, home, or school. “These are concerns with BzRAs. Misuse and abuse generally occur in younger people. Once you get to 35 years old, misuse rates get very low. In older people, rates of side effects go up.

“Tolerance, physiological and psychological dependence, and nonmedical diversion are also of concern,” he said. However, for the majority of people, BzRA hypnotics are effective and safe.

As for other agents, meta-analyses have demonstrated that melatonin 1-3 mg can help people fall asleep when it’s not being endogenously released. “That’s during the day,” he said. “That might be most relevant for jet lag and for people doing shift work.” Two orexin antagonists on the market for insomnia include suvorexant and lemborexant 10-20 mg. Advantages of these include little abuse liability and few side effects. “In one head-to-head polysomnography study in the elderly, lemborexant was superior to zolpidem 6.25 mg CR on both objective and subjective ability to fall asleep and stay asleep,” Dr. Winkelman said. (JAMA Netw Open. 2019;2[12]:e1918254).

Antidepressants are another treatment option, including mirtazapine 15-30 mg, trazodone 25-100 mg, and amitriptyline and doxepin (10-50 mg). Advantages include little abuse liability, while potential drawbacks include daytime sedation, weight gain, and anticholinergic side effects. Meanwhile, atypical antipsychotics such as quetiapine 25-100 mg have long been known to be helpful for sleep. “Advantages are that they’re anxiolytic, they’re mood stabilizing, and there is little abuse liability,” Dr. Winkelman said. “Drawbacks are that they’re probably less effective than BzRAs, they cause daytime sedation, weight gain, risks of extrapyramidal symptoms and glucose and lipid abnormalities.”

Dr. Winkelman said that he uses “a fair amount” of the anticonvulsant gabapentin as a second- or third-line hypnotic agent. “I usually start with 300 mg [at bedtime],” he added. “Drawbacks are that it’s probably less effective than BzRAs; it affects cognition; and can cause daytime sedation, dizziness, and weight gain. There are also concerns about abuse.”

Dr. Winkelman reported that he has received grant/research support from Merck, the RLS Foundation, and Luitpold Pharmaceuticals. He is also a consultant for Advance Medical, Avadel Pharmaceuticals, and UpToDate and is a member of the speakers’ bureau for Luitpold.

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Give new patients 1 hour, expert advises

Give new patients 1 hour, expert advises

– Clinicians should spend 1 hour with patients who present with a chief complaint of insomnia, rather than rushing to a treatment after a 10- to 15-minute office visit, according to John W. Winkelman, MD, PhD.

Doug Brunk/MDedge News
Dr. John W. Winkelman

“Why? Because sleep problems are usually multifactorial, involving psychiatric illness, sleep disorders, medical illness, medication, and poor sleep hygiene/stress,” he said at an annual psychopharmacology update held by the Nevada Psychiatric Association. “There are usually many contributing problems, and sleep quality is only as strong as the weakest link. Maybe you don’t have an hour [to meet with new patients], but you need to give adequate time, otherwise you’re not going to do justice to the problem.”

During that first visit, Dr. Winkelman recommends establishing and prioritizing goals with the patient. “Ask, ‘what is it that bothers you most about your insomnia? Is it the time awake at night, your total sleep time, or how you feel during the day?’ Because we’re going to use different approaches based on that chief complaint of the insomnia,” said Dr. Winkelman, chief of the Massachusetts General Sleep Disorders Clinical Research Program in the department of psychiatry at Harvard Medical School, Boston. “Cognitive-behavioral therapy for insomnia [CBT-I], for instance, is very good at reducing time awake at night. It won’t increase total sleep time, but it reduces time awake at night dramatically.”

According to the DSM-5, insomnia disorder is marked by dissatisfaction with sleep quality or quantity associated with at least one of the following: difficulty initiating sleep, difficulty maintaining sleep, and early morning awakening. “Just getting up to pee five times a night is not insomnia,” he said. “Just taking an hour and a half to fall asleep at the beginning of the night is not insomnia. There has to be distress or dysfunction related to the sleep disturbance, for a minimum of three times per week for 3 months.”

Most sleep problems are transient, but 25%-30% last more than 1 year. The differential diagnosis for chronic insomnia includes primary psychiatric disorders, medications, substances, restless legs syndrome, sleep schedule disorders, and obstructive sleep apnea.

“In general, we do not order sleep studies in people with insomnia unless we suspect sleep apnea; it’s just a waste of time,” said Dr. Winkelman, who is also a professor of psychiatry at Harvard Medical School. Indications for polysomnography include loud snoring plus one of the following: daytime sleepiness, witnessed apneas, or refractory hypertension. Other indications include abnormal behaviors or movements during sleep, unexplained excessive daytime sleepiness, and refractory sleep complaints, especially repetitive brief awakenings.

Many common cognitive and behavioral issues can produce or worsen insomnia, including inconsistent bedtimes and wake times. “That irregular schedule wreaks havoc with sleep,” he said. “It messes up the circadian rhythm. Also, homeostatic drive needs to build up: We need to be awake 16 or more hours in order to be sleepy. If people are sleeping until noon on Sundays and then trying to go to bed at their usual time, 10 or 11 at night, they’ve only been awake 10 or 11 hours. That’s why they’re going to have problems falling asleep. Also, a lot of people doze off after dinner in front of the TV. That doesn’t help.”

Spending excessive time in bed can also trigger or worsen insomnia. Dr. Winkelman recommends that people restrict their access to bed to the number of hours it is reasonable to sleep. “I see a lot of people in their 70s and 80s spending 10 hours in bed,” he said. “It doesn’t sound that crazy, but there is no way they’re going to get 10 hours of sleep. It’s physically impossible, so they spend 2 or 3 hours awake at night.” Clock-watching is another no-no. “In the middle of the night you wake up, look at the clock, and say to yourself: ‘Oh my god, I’ve been awake for 3 hours. I have 4 hours left. I need 7 hours. That means I need to go to sleep now!’ ”



An estimated 30%-40% of people with chronic insomnia have a psychiatric disorder. That means “you have to be thorough in your evaluation and act as if you’re doing a structured interview,” Dr. Winkelman said. “Ask about obsessive-compulsive disorder, generalized anxiety disorder, PTSD, et cetera, so that you understand the complete myriad of psychiatric illnesses, because psychiatric illnesses run in gangs. Comorbidity is generally the rule.”

The first-line treatment for chronic insomnia disorder is CBT-I, a multicomponent approach that includes time-in-bed restriction, stimulus control, cognitive therapy, relaxation therapy, and sleep hygiene. According to Dr. Winkelman, the cornerstone of CBT-I is time-in-bed restriction. “Many people with insomnia are spending 8.5 hours in bed to get 6.5 hours of sleep,” he said. “What you do is restrict access to bed to 6.5 hours; you initially sleep deprive them. Over the first few weeks, they hate you. After a few weeks when they start sleeping well, you start gradually increasing time in bed, but they rarely get back to the 8.5 hours in bed they were spending beforehand.”

Online CBT-I programs such as Sleepio can also be effective for improving sleep latency and wake after sleep onset, but not for total sleep time (JAMA Psychiatry. 2017;74[1]:68-75). “Not everybody responds to CBT; 50% don’t respond at a couple of months,” he said. “These are the people you need to think about medication for.”

Medications commonly used for chronic insomnia include benzodiazepine receptor agonists (BzRAs) – temazepam, eszopiclone, triazolam, zolpidem, and zaleplon are Food and Drug Administration approved – melatonin agonists, orexin antagonists, sedating antidepressants, anticonvulsants, and dopaminergic antagonists. “Each of the agents in these categories has somewhat similar mechanisms of action, and similar efficacy and contraindications,” Dr. Winkelman said. “The best way to divide the benzodiazepine receptor agonists is based on half-life. How long do you want drug on receptor in somebody with insomnia? Probably not much longer than 8 hours. Nevertheless, some psychiatrists love clonazepam, which has a 40-hour half-life. The circumstances under which clonazepam should be used for insomnia are small, such as in people with a daytime anxiety disorder.”

Consider trying triazolam, zolpidem, and zaleplon for patients who have problems falling asleep, he said, while oxazepam and eszopiclone are sensible options for people who have difficulty falling and staying asleep. Clinical response to BzRAs is common, yet only about half of people who have insomnia remit with one of these agents.

Dr. Winkelman said that patients and physicians often ask him whether BzRAs and other agents used as sleep aids are addictive. Abuse is identified when recurrent use causes clinically and functionally significant impairment, such as health problems; disability; and failure to meet major responsibilities at work, home, or school. “These are concerns with BzRAs. Misuse and abuse generally occur in younger people. Once you get to 35 years old, misuse rates get very low. In older people, rates of side effects go up.

“Tolerance, physiological and psychological dependence, and nonmedical diversion are also of concern,” he said. However, for the majority of people, BzRA hypnotics are effective and safe.

As for other agents, meta-analyses have demonstrated that melatonin 1-3 mg can help people fall asleep when it’s not being endogenously released. “That’s during the day,” he said. “That might be most relevant for jet lag and for people doing shift work.” Two orexin antagonists on the market for insomnia include suvorexant and lemborexant 10-20 mg. Advantages of these include little abuse liability and few side effects. “In one head-to-head polysomnography study in the elderly, lemborexant was superior to zolpidem 6.25 mg CR on both objective and subjective ability to fall asleep and stay asleep,” Dr. Winkelman said. (JAMA Netw Open. 2019;2[12]:e1918254).

Antidepressants are another treatment option, including mirtazapine 15-30 mg, trazodone 25-100 mg, and amitriptyline and doxepin (10-50 mg). Advantages include little abuse liability, while potential drawbacks include daytime sedation, weight gain, and anticholinergic side effects. Meanwhile, atypical antipsychotics such as quetiapine 25-100 mg have long been known to be helpful for sleep. “Advantages are that they’re anxiolytic, they’re mood stabilizing, and there is little abuse liability,” Dr. Winkelman said. “Drawbacks are that they’re probably less effective than BzRAs, they cause daytime sedation, weight gain, risks of extrapyramidal symptoms and glucose and lipid abnormalities.”

Dr. Winkelman said that he uses “a fair amount” of the anticonvulsant gabapentin as a second- or third-line hypnotic agent. “I usually start with 300 mg [at bedtime],” he added. “Drawbacks are that it’s probably less effective than BzRAs; it affects cognition; and can cause daytime sedation, dizziness, and weight gain. There are also concerns about abuse.”

Dr. Winkelman reported that he has received grant/research support from Merck, the RLS Foundation, and Luitpold Pharmaceuticals. He is also a consultant for Advance Medical, Avadel Pharmaceuticals, and UpToDate and is a member of the speakers’ bureau for Luitpold.

– Clinicians should spend 1 hour with patients who present with a chief complaint of insomnia, rather than rushing to a treatment after a 10- to 15-minute office visit, according to John W. Winkelman, MD, PhD.

Doug Brunk/MDedge News
Dr. John W. Winkelman

“Why? Because sleep problems are usually multifactorial, involving psychiatric illness, sleep disorders, medical illness, medication, and poor sleep hygiene/stress,” he said at an annual psychopharmacology update held by the Nevada Psychiatric Association. “There are usually many contributing problems, and sleep quality is only as strong as the weakest link. Maybe you don’t have an hour [to meet with new patients], but you need to give adequate time, otherwise you’re not going to do justice to the problem.”

During that first visit, Dr. Winkelman recommends establishing and prioritizing goals with the patient. “Ask, ‘what is it that bothers you most about your insomnia? Is it the time awake at night, your total sleep time, or how you feel during the day?’ Because we’re going to use different approaches based on that chief complaint of the insomnia,” said Dr. Winkelman, chief of the Massachusetts General Sleep Disorders Clinical Research Program in the department of psychiatry at Harvard Medical School, Boston. “Cognitive-behavioral therapy for insomnia [CBT-I], for instance, is very good at reducing time awake at night. It won’t increase total sleep time, but it reduces time awake at night dramatically.”

According to the DSM-5, insomnia disorder is marked by dissatisfaction with sleep quality or quantity associated with at least one of the following: difficulty initiating sleep, difficulty maintaining sleep, and early morning awakening. “Just getting up to pee five times a night is not insomnia,” he said. “Just taking an hour and a half to fall asleep at the beginning of the night is not insomnia. There has to be distress or dysfunction related to the sleep disturbance, for a minimum of three times per week for 3 months.”

Most sleep problems are transient, but 25%-30% last more than 1 year. The differential diagnosis for chronic insomnia includes primary psychiatric disorders, medications, substances, restless legs syndrome, sleep schedule disorders, and obstructive sleep apnea.

“In general, we do not order sleep studies in people with insomnia unless we suspect sleep apnea; it’s just a waste of time,” said Dr. Winkelman, who is also a professor of psychiatry at Harvard Medical School. Indications for polysomnography include loud snoring plus one of the following: daytime sleepiness, witnessed apneas, or refractory hypertension. Other indications include abnormal behaviors or movements during sleep, unexplained excessive daytime sleepiness, and refractory sleep complaints, especially repetitive brief awakenings.

Many common cognitive and behavioral issues can produce or worsen insomnia, including inconsistent bedtimes and wake times. “That irregular schedule wreaks havoc with sleep,” he said. “It messes up the circadian rhythm. Also, homeostatic drive needs to build up: We need to be awake 16 or more hours in order to be sleepy. If people are sleeping until noon on Sundays and then trying to go to bed at their usual time, 10 or 11 at night, they’ve only been awake 10 or 11 hours. That’s why they’re going to have problems falling asleep. Also, a lot of people doze off after dinner in front of the TV. That doesn’t help.”

Spending excessive time in bed can also trigger or worsen insomnia. Dr. Winkelman recommends that people restrict their access to bed to the number of hours it is reasonable to sleep. “I see a lot of people in their 70s and 80s spending 10 hours in bed,” he said. “It doesn’t sound that crazy, but there is no way they’re going to get 10 hours of sleep. It’s physically impossible, so they spend 2 or 3 hours awake at night.” Clock-watching is another no-no. “In the middle of the night you wake up, look at the clock, and say to yourself: ‘Oh my god, I’ve been awake for 3 hours. I have 4 hours left. I need 7 hours. That means I need to go to sleep now!’ ”



An estimated 30%-40% of people with chronic insomnia have a psychiatric disorder. That means “you have to be thorough in your evaluation and act as if you’re doing a structured interview,” Dr. Winkelman said. “Ask about obsessive-compulsive disorder, generalized anxiety disorder, PTSD, et cetera, so that you understand the complete myriad of psychiatric illnesses, because psychiatric illnesses run in gangs. Comorbidity is generally the rule.”

The first-line treatment for chronic insomnia disorder is CBT-I, a multicomponent approach that includes time-in-bed restriction, stimulus control, cognitive therapy, relaxation therapy, and sleep hygiene. According to Dr. Winkelman, the cornerstone of CBT-I is time-in-bed restriction. “Many people with insomnia are spending 8.5 hours in bed to get 6.5 hours of sleep,” he said. “What you do is restrict access to bed to 6.5 hours; you initially sleep deprive them. Over the first few weeks, they hate you. After a few weeks when they start sleeping well, you start gradually increasing time in bed, but they rarely get back to the 8.5 hours in bed they were spending beforehand.”

Online CBT-I programs such as Sleepio can also be effective for improving sleep latency and wake after sleep onset, but not for total sleep time (JAMA Psychiatry. 2017;74[1]:68-75). “Not everybody responds to CBT; 50% don’t respond at a couple of months,” he said. “These are the people you need to think about medication for.”

Medications commonly used for chronic insomnia include benzodiazepine receptor agonists (BzRAs) – temazepam, eszopiclone, triazolam, zolpidem, and zaleplon are Food and Drug Administration approved – melatonin agonists, orexin antagonists, sedating antidepressants, anticonvulsants, and dopaminergic antagonists. “Each of the agents in these categories has somewhat similar mechanisms of action, and similar efficacy and contraindications,” Dr. Winkelman said. “The best way to divide the benzodiazepine receptor agonists is based on half-life. How long do you want drug on receptor in somebody with insomnia? Probably not much longer than 8 hours. Nevertheless, some psychiatrists love clonazepam, which has a 40-hour half-life. The circumstances under which clonazepam should be used for insomnia are small, such as in people with a daytime anxiety disorder.”

Consider trying triazolam, zolpidem, and zaleplon for patients who have problems falling asleep, he said, while oxazepam and eszopiclone are sensible options for people who have difficulty falling and staying asleep. Clinical response to BzRAs is common, yet only about half of people who have insomnia remit with one of these agents.

Dr. Winkelman said that patients and physicians often ask him whether BzRAs and other agents used as sleep aids are addictive. Abuse is identified when recurrent use causes clinically and functionally significant impairment, such as health problems; disability; and failure to meet major responsibilities at work, home, or school. “These are concerns with BzRAs. Misuse and abuse generally occur in younger people. Once you get to 35 years old, misuse rates get very low. In older people, rates of side effects go up.

“Tolerance, physiological and psychological dependence, and nonmedical diversion are also of concern,” he said. However, for the majority of people, BzRA hypnotics are effective and safe.

As for other agents, meta-analyses have demonstrated that melatonin 1-3 mg can help people fall asleep when it’s not being endogenously released. “That’s during the day,” he said. “That might be most relevant for jet lag and for people doing shift work.” Two orexin antagonists on the market for insomnia include suvorexant and lemborexant 10-20 mg. Advantages of these include little abuse liability and few side effects. “In one head-to-head polysomnography study in the elderly, lemborexant was superior to zolpidem 6.25 mg CR on both objective and subjective ability to fall asleep and stay asleep,” Dr. Winkelman said. (JAMA Netw Open. 2019;2[12]:e1918254).

Antidepressants are another treatment option, including mirtazapine 15-30 mg, trazodone 25-100 mg, and amitriptyline and doxepin (10-50 mg). Advantages include little abuse liability, while potential drawbacks include daytime sedation, weight gain, and anticholinergic side effects. Meanwhile, atypical antipsychotics such as quetiapine 25-100 mg have long been known to be helpful for sleep. “Advantages are that they’re anxiolytic, they’re mood stabilizing, and there is little abuse liability,” Dr. Winkelman said. “Drawbacks are that they’re probably less effective than BzRAs, they cause daytime sedation, weight gain, risks of extrapyramidal symptoms and glucose and lipid abnormalities.”

Dr. Winkelman said that he uses “a fair amount” of the anticonvulsant gabapentin as a second- or third-line hypnotic agent. “I usually start with 300 mg [at bedtime],” he added. “Drawbacks are that it’s probably less effective than BzRAs; it affects cognition; and can cause daytime sedation, dizziness, and weight gain. There are also concerns about abuse.”

Dr. Winkelman reported that he has received grant/research support from Merck, the RLS Foundation, and Luitpold Pharmaceuticals. He is also a consultant for Advance Medical, Avadel Pharmaceuticals, and UpToDate and is a member of the speakers’ bureau for Luitpold.

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BASILAR: Endovascular treatment improves outcomes in BAO stroke

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LOS ANGELES – Endovascular therapy significantly improved functional outcomes and reduced mortality at 90 days, compared with standard thrombolysis alone, new evidence from a large, prospective registry study suggests.

Participants who received both interventions were almost five times more likely to be able to walk independently at 90 days compared with those who received thrombolysis alone.

Despite multiple trials supporting the potential benefits of endovascular therapy for anterior stroke, little prospective research addresses outcomes associated with an ischemic stroke caused by a posterior basilar artery occlusion (BAO).

“Basilar artery occlusion is the ‘orphan’ of the large vessel occlusions,” Raul Gomes Nogueira, MD, PhD, said here at a late-breaking abstract session at the International Stroke Conference sponsored by the American Heart Association.

“They account for about 5% of the large vessel occlusions – but have the most dismal prognosis.” Severe disability and mortality rates associated with BAO, for example, reach an estimated 68% to 78%, he said.

The results, from the EVT for Acute Basilar Artery Occlusion Study (BASILAR), were also simultaneously published in JAMA Neurology.

Prior studies in this patient population are generally single-center, retrospective studies and “the numbers tend to be small,” said Nogueira, who is affiliated with the Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Emory University School of Medicine in Atlanta, Georgia.

Nogueira and colleagues studied 829 consecutive adults who presented with an acute, symptomatic BAO. They examined a nationwide prospective registry study of people with radiologically confirmed BAO in 47 comprehensive stroke centers across 15 provinces in China.

The median age was 65 years and 74% were men. A total 182 participants received thrombolysis therapy within 6 hours of estimated BAO onset. The 647 people in the dual intervention group also received endovascular therapy within 24 hours.

Standard medical treatment included intravenous rt-PA or urokinase, antiplatelet drugs and systematic anticoagulation alone or in combination. Endovascular therapy included mechanical thrombectomy with stent retrievers and/or thromboaspiration, balloon angioplasty, stenting, intra-arterial thrombolysis, or a combination of these interventions.

Interestingly, participants were not randomly assigned, in part because of the favorable outcomes associated with endovascular therapy. “The high number of patients who received [the dual intervention] may suggest the existence of a lack of equipoise among participating centers,” the researchers note.

Key Efficacy Endpoints

A significantly higher proportion of people in the dual treatment group achieved the primary outcome, functional improvement at 90 days, at 32%, compared with 9.3% in the thrombolysis-only group. This endpoint was defined as a modified Rankin Scale (mRS) score of 3 or less, which reflects an ability to walk independently. The difference was statistically significant (P < .001).

The absolute difference between groups was 22.7% (95% confidence interval, 17.1%-28.2%) with an adjusted odds ratio of 4.70 (95% CI, 2.53-8.75; P < .001) in favor of dual intervention.

The number needed to treat for one additional patient to be able to walk unassisted was 4.4.

Other outcomes, including differences in National Institutes of Health Stroke Scale scores from baseline to 5 to 7 days or discharge, as well as propensity score matching and subgroup analyses, likewise supported the superiority of using both interventions.
 

 

 

Safety Outcomes

Nogueira and colleagues also assessed safety. They found that symptomatic intracerebral hemorrhage (ICH) occurred in 45 patients, or 7.1% of the endovascular treatment group. In contrast, only one patient, or 0.5%, of the standard medical treatment alone cohort experienced an ICH. This difference was statistically significant (P < .001).

Mortality at 90 days was significantly lower in the endovascular therapy plus medical therapy group, 46.2%, compared with 71.4% in the standard medical treatment alone group (P < .001).

The absolute difference in mortality was 25.2% (95% CI, 17.6%-2.8%) favoring dual treatment, with an adjusted odds ratio of 2.93 (95% CI, 1.95-4.40; P < .001).

Rates of other serious adverse events during the 90-day follow-up period were similar in the two study groups, Nogueira said.

He acknowledged that the nonrandomized design was a limitation of the registry study, adding that “sometimes in life it’s important to acknowledge the best of what can be done. It’s very hard when you have access to thrombectomy to randomize people.”

However, other researchers have attempted or are enrolling people with BAO into trials that randomly assign them to endovascular therapy and standard medical treatment or medical treatment alone.

The BEST trial in China, for example, randomly assigned 131 patients to these groups but was stopped early in September 2017. “The BEST trial was terminated prematurely because of loss of equipoise that led to a high crossover rate and drop in valid recruitment,” the current researchers note.

“The other two trials…are facing the challenge of whether they will achieve their inclusion target,” they add, “because a growing number of stroke centers are unwilling to randomize patients to standard medical treatment alone after the many positive results of trials for endovascular treatment in patients with anterior-circulation stroke.”

The BAOCHE trial from China, for example, is ongoing with approximately 110 patients enrolled so far.

Investigators for the Basilar Artery International Cooperation Study (BASICS) in the Netherlands just completed enrollment of their 300th and final patient in December 2019.

“We are hopeful BASICS trial will shed additional light,” Nogueira said. The results are expected to be presented at the European Stroke Organization Conference in Vienna in May 2020.
 

More Guidance From MRI?

“With the advent of the stent retrievers and successful recanalization, we know there can be better outcomes for patients. And we know the morbidity and mortality of the basilar artery occlusions are so poor that we tend to want to be aggressive in these cases,” session comoderator Shlee S. Song, MD, director of the Comprehensive Stroke Center and associate professor of neurology at Cedars-Sinai Medical Center in Los Angeles, California, told Medscape Medical News when asked to comment on the study.

“I agree that we’ve lost equipoise in this cohort – that we really cannot do a randomized trial anymore. You know if you don’t do anything, 90% of the time there will be a poor outcome,” she added.

This is an important study for showing how BAO patients fare after endovascular treatment, Song said.

One unanswered question from the study is if any of the centers in China used magnetic resonance imaging to help determine the most appropriate candidates for endovascular treatment of these posterior circulation strokes, which is a common practice in the United States, she said.

The study was supported by the National Science Fund for Distinguished Young Scholars, Chongqing Major Disease Prevention and Control Technology Research Project, Army Medical University Clinical Medical Research Talent Training Program, and Major Clinical Innovation Technology Project of the Second Affiliated Hospital of the Army Military Medical University. Sing had no relevant disclosures. Nogueira’s financial disclosures include working as a consultant for Stryker Neurovascular; as a principal investigator on the Imperative trial and the PROST trial; as a steering committee member for Biogen for the CHARM trial; as an advisory board member for Cerenovus/Neuravi, Phenox, Anaconda, Genentech, Biogen, Prolong Pharmaceuticals and Brainomix; and as an advisory board member with stock options for Viz.ai, Corindus Vascular Robotics, Vesalio, Ceretrieve, Astrocyte Pharmaceuticals, and Cerebrotech.

This article first appeared on Medscape.com.

SOURCE: Nogueira RG et al. ISC 2020. Late-breaking abstract 17.

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LOS ANGELES – Endovascular therapy significantly improved functional outcomes and reduced mortality at 90 days, compared with standard thrombolysis alone, new evidence from a large, prospective registry study suggests.

Participants who received both interventions were almost five times more likely to be able to walk independently at 90 days compared with those who received thrombolysis alone.

Despite multiple trials supporting the potential benefits of endovascular therapy for anterior stroke, little prospective research addresses outcomes associated with an ischemic stroke caused by a posterior basilar artery occlusion (BAO).

“Basilar artery occlusion is the ‘orphan’ of the large vessel occlusions,” Raul Gomes Nogueira, MD, PhD, said here at a late-breaking abstract session at the International Stroke Conference sponsored by the American Heart Association.

“They account for about 5% of the large vessel occlusions – but have the most dismal prognosis.” Severe disability and mortality rates associated with BAO, for example, reach an estimated 68% to 78%, he said.

The results, from the EVT for Acute Basilar Artery Occlusion Study (BASILAR), were also simultaneously published in JAMA Neurology.

Prior studies in this patient population are generally single-center, retrospective studies and “the numbers tend to be small,” said Nogueira, who is affiliated with the Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Emory University School of Medicine in Atlanta, Georgia.

Nogueira and colleagues studied 829 consecutive adults who presented with an acute, symptomatic BAO. They examined a nationwide prospective registry study of people with radiologically confirmed BAO in 47 comprehensive stroke centers across 15 provinces in China.

The median age was 65 years and 74% were men. A total 182 participants received thrombolysis therapy within 6 hours of estimated BAO onset. The 647 people in the dual intervention group also received endovascular therapy within 24 hours.

Standard medical treatment included intravenous rt-PA or urokinase, antiplatelet drugs and systematic anticoagulation alone or in combination. Endovascular therapy included mechanical thrombectomy with stent retrievers and/or thromboaspiration, balloon angioplasty, stenting, intra-arterial thrombolysis, or a combination of these interventions.

Interestingly, participants were not randomly assigned, in part because of the favorable outcomes associated with endovascular therapy. “The high number of patients who received [the dual intervention] may suggest the existence of a lack of equipoise among participating centers,” the researchers note.

Key Efficacy Endpoints

A significantly higher proportion of people in the dual treatment group achieved the primary outcome, functional improvement at 90 days, at 32%, compared with 9.3% in the thrombolysis-only group. This endpoint was defined as a modified Rankin Scale (mRS) score of 3 or less, which reflects an ability to walk independently. The difference was statistically significant (P < .001).

The absolute difference between groups was 22.7% (95% confidence interval, 17.1%-28.2%) with an adjusted odds ratio of 4.70 (95% CI, 2.53-8.75; P < .001) in favor of dual intervention.

The number needed to treat for one additional patient to be able to walk unassisted was 4.4.

Other outcomes, including differences in National Institutes of Health Stroke Scale scores from baseline to 5 to 7 days or discharge, as well as propensity score matching and subgroup analyses, likewise supported the superiority of using both interventions.
 

 

 

Safety Outcomes

Nogueira and colleagues also assessed safety. They found that symptomatic intracerebral hemorrhage (ICH) occurred in 45 patients, or 7.1% of the endovascular treatment group. In contrast, only one patient, or 0.5%, of the standard medical treatment alone cohort experienced an ICH. This difference was statistically significant (P < .001).

Mortality at 90 days was significantly lower in the endovascular therapy plus medical therapy group, 46.2%, compared with 71.4% in the standard medical treatment alone group (P < .001).

The absolute difference in mortality was 25.2% (95% CI, 17.6%-2.8%) favoring dual treatment, with an adjusted odds ratio of 2.93 (95% CI, 1.95-4.40; P < .001).

Rates of other serious adverse events during the 90-day follow-up period were similar in the two study groups, Nogueira said.

He acknowledged that the nonrandomized design was a limitation of the registry study, adding that “sometimes in life it’s important to acknowledge the best of what can be done. It’s very hard when you have access to thrombectomy to randomize people.”

However, other researchers have attempted or are enrolling people with BAO into trials that randomly assign them to endovascular therapy and standard medical treatment or medical treatment alone.

The BEST trial in China, for example, randomly assigned 131 patients to these groups but was stopped early in September 2017. “The BEST trial was terminated prematurely because of loss of equipoise that led to a high crossover rate and drop in valid recruitment,” the current researchers note.

“The other two trials…are facing the challenge of whether they will achieve their inclusion target,” they add, “because a growing number of stroke centers are unwilling to randomize patients to standard medical treatment alone after the many positive results of trials for endovascular treatment in patients with anterior-circulation stroke.”

The BAOCHE trial from China, for example, is ongoing with approximately 110 patients enrolled so far.

Investigators for the Basilar Artery International Cooperation Study (BASICS) in the Netherlands just completed enrollment of their 300th and final patient in December 2019.

“We are hopeful BASICS trial will shed additional light,” Nogueira said. The results are expected to be presented at the European Stroke Organization Conference in Vienna in May 2020.
 

More Guidance From MRI?

“With the advent of the stent retrievers and successful recanalization, we know there can be better outcomes for patients. And we know the morbidity and mortality of the basilar artery occlusions are so poor that we tend to want to be aggressive in these cases,” session comoderator Shlee S. Song, MD, director of the Comprehensive Stroke Center and associate professor of neurology at Cedars-Sinai Medical Center in Los Angeles, California, told Medscape Medical News when asked to comment on the study.

“I agree that we’ve lost equipoise in this cohort – that we really cannot do a randomized trial anymore. You know if you don’t do anything, 90% of the time there will be a poor outcome,” she added.

This is an important study for showing how BAO patients fare after endovascular treatment, Song said.

One unanswered question from the study is if any of the centers in China used magnetic resonance imaging to help determine the most appropriate candidates for endovascular treatment of these posterior circulation strokes, which is a common practice in the United States, she said.

The study was supported by the National Science Fund for Distinguished Young Scholars, Chongqing Major Disease Prevention and Control Technology Research Project, Army Medical University Clinical Medical Research Talent Training Program, and Major Clinical Innovation Technology Project of the Second Affiliated Hospital of the Army Military Medical University. Sing had no relevant disclosures. Nogueira’s financial disclosures include working as a consultant for Stryker Neurovascular; as a principal investigator on the Imperative trial and the PROST trial; as a steering committee member for Biogen for the CHARM trial; as an advisory board member for Cerenovus/Neuravi, Phenox, Anaconda, Genentech, Biogen, Prolong Pharmaceuticals and Brainomix; and as an advisory board member with stock options for Viz.ai, Corindus Vascular Robotics, Vesalio, Ceretrieve, Astrocyte Pharmaceuticals, and Cerebrotech.

This article first appeared on Medscape.com.

SOURCE: Nogueira RG et al. ISC 2020. Late-breaking abstract 17.

LOS ANGELES – Endovascular therapy significantly improved functional outcomes and reduced mortality at 90 days, compared with standard thrombolysis alone, new evidence from a large, prospective registry study suggests.

Participants who received both interventions were almost five times more likely to be able to walk independently at 90 days compared with those who received thrombolysis alone.

Despite multiple trials supporting the potential benefits of endovascular therapy for anterior stroke, little prospective research addresses outcomes associated with an ischemic stroke caused by a posterior basilar artery occlusion (BAO).

“Basilar artery occlusion is the ‘orphan’ of the large vessel occlusions,” Raul Gomes Nogueira, MD, PhD, said here at a late-breaking abstract session at the International Stroke Conference sponsored by the American Heart Association.

“They account for about 5% of the large vessel occlusions – but have the most dismal prognosis.” Severe disability and mortality rates associated with BAO, for example, reach an estimated 68% to 78%, he said.

The results, from the EVT for Acute Basilar Artery Occlusion Study (BASILAR), were also simultaneously published in JAMA Neurology.

Prior studies in this patient population are generally single-center, retrospective studies and “the numbers tend to be small,” said Nogueira, who is affiliated with the Marcus Stroke and Neuroscience Center, Grady Memorial Hospital, Emory University School of Medicine in Atlanta, Georgia.

Nogueira and colleagues studied 829 consecutive adults who presented with an acute, symptomatic BAO. They examined a nationwide prospective registry study of people with radiologically confirmed BAO in 47 comprehensive stroke centers across 15 provinces in China.

The median age was 65 years and 74% were men. A total 182 participants received thrombolysis therapy within 6 hours of estimated BAO onset. The 647 people in the dual intervention group also received endovascular therapy within 24 hours.

Standard medical treatment included intravenous rt-PA or urokinase, antiplatelet drugs and systematic anticoagulation alone or in combination. Endovascular therapy included mechanical thrombectomy with stent retrievers and/or thromboaspiration, balloon angioplasty, stenting, intra-arterial thrombolysis, or a combination of these interventions.

Interestingly, participants were not randomly assigned, in part because of the favorable outcomes associated with endovascular therapy. “The high number of patients who received [the dual intervention] may suggest the existence of a lack of equipoise among participating centers,” the researchers note.

Key Efficacy Endpoints

A significantly higher proportion of people in the dual treatment group achieved the primary outcome, functional improvement at 90 days, at 32%, compared with 9.3% in the thrombolysis-only group. This endpoint was defined as a modified Rankin Scale (mRS) score of 3 or less, which reflects an ability to walk independently. The difference was statistically significant (P < .001).

The absolute difference between groups was 22.7% (95% confidence interval, 17.1%-28.2%) with an adjusted odds ratio of 4.70 (95% CI, 2.53-8.75; P < .001) in favor of dual intervention.

The number needed to treat for one additional patient to be able to walk unassisted was 4.4.

Other outcomes, including differences in National Institutes of Health Stroke Scale scores from baseline to 5 to 7 days or discharge, as well as propensity score matching and subgroup analyses, likewise supported the superiority of using both interventions.
 

 

 

Safety Outcomes

Nogueira and colleagues also assessed safety. They found that symptomatic intracerebral hemorrhage (ICH) occurred in 45 patients, or 7.1% of the endovascular treatment group. In contrast, only one patient, or 0.5%, of the standard medical treatment alone cohort experienced an ICH. This difference was statistically significant (P < .001).

Mortality at 90 days was significantly lower in the endovascular therapy plus medical therapy group, 46.2%, compared with 71.4% in the standard medical treatment alone group (P < .001).

The absolute difference in mortality was 25.2% (95% CI, 17.6%-2.8%) favoring dual treatment, with an adjusted odds ratio of 2.93 (95% CI, 1.95-4.40; P < .001).

Rates of other serious adverse events during the 90-day follow-up period were similar in the two study groups, Nogueira said.

He acknowledged that the nonrandomized design was a limitation of the registry study, adding that “sometimes in life it’s important to acknowledge the best of what can be done. It’s very hard when you have access to thrombectomy to randomize people.”

However, other researchers have attempted or are enrolling people with BAO into trials that randomly assign them to endovascular therapy and standard medical treatment or medical treatment alone.

The BEST trial in China, for example, randomly assigned 131 patients to these groups but was stopped early in September 2017. “The BEST trial was terminated prematurely because of loss of equipoise that led to a high crossover rate and drop in valid recruitment,” the current researchers note.

“The other two trials…are facing the challenge of whether they will achieve their inclusion target,” they add, “because a growing number of stroke centers are unwilling to randomize patients to standard medical treatment alone after the many positive results of trials for endovascular treatment in patients with anterior-circulation stroke.”

The BAOCHE trial from China, for example, is ongoing with approximately 110 patients enrolled so far.

Investigators for the Basilar Artery International Cooperation Study (BASICS) in the Netherlands just completed enrollment of their 300th and final patient in December 2019.

“We are hopeful BASICS trial will shed additional light,” Nogueira said. The results are expected to be presented at the European Stroke Organization Conference in Vienna in May 2020.
 

More Guidance From MRI?

“With the advent of the stent retrievers and successful recanalization, we know there can be better outcomes for patients. And we know the morbidity and mortality of the basilar artery occlusions are so poor that we tend to want to be aggressive in these cases,” session comoderator Shlee S. Song, MD, director of the Comprehensive Stroke Center and associate professor of neurology at Cedars-Sinai Medical Center in Los Angeles, California, told Medscape Medical News when asked to comment on the study.

“I agree that we’ve lost equipoise in this cohort – that we really cannot do a randomized trial anymore. You know if you don’t do anything, 90% of the time there will be a poor outcome,” she added.

This is an important study for showing how BAO patients fare after endovascular treatment, Song said.

One unanswered question from the study is if any of the centers in China used magnetic resonance imaging to help determine the most appropriate candidates for endovascular treatment of these posterior circulation strokes, which is a common practice in the United States, she said.

The study was supported by the National Science Fund for Distinguished Young Scholars, Chongqing Major Disease Prevention and Control Technology Research Project, Army Medical University Clinical Medical Research Talent Training Program, and Major Clinical Innovation Technology Project of the Second Affiliated Hospital of the Army Military Medical University. Sing had no relevant disclosures. Nogueira’s financial disclosures include working as a consultant for Stryker Neurovascular; as a principal investigator on the Imperative trial and the PROST trial; as a steering committee member for Biogen for the CHARM trial; as an advisory board member for Cerenovus/Neuravi, Phenox, Anaconda, Genentech, Biogen, Prolong Pharmaceuticals and Brainomix; and as an advisory board member with stock options for Viz.ai, Corindus Vascular Robotics, Vesalio, Ceretrieve, Astrocyte Pharmaceuticals, and Cerebrotech.

This article first appeared on Medscape.com.

SOURCE: Nogueira RG et al. ISC 2020. Late-breaking abstract 17.

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Docs spurn state attempts to criminalize treatment of transgender kids

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Many US endocrinologists are crying foul as a growing number of state lawmakers are attempting to enact legislation that would prohibit, and in some cases criminalize, medical treatment for minors with gender dysphoria.

As of press time, 13 states had introduced such bills, and legislators in two additional states said they were drafting bills. So far, one — in South Dakota — was defeated in a Senate committee, and another, in Florida, was essentially tabled without being enacted.

They all have a common goal of preventing minors from receiving puberty blockers, cross-sex hormones, or gender-affirmation surgery.

“These things are being proposed based on a lot of misinformation,” said Stephen Rosenthal, MD, professor of pediatrics at the University of California, San Francisco (UCSF), and a past president of the Pediatric Endocrine Society.

Lawmakers “are not looking at the scientific evidence that supports current clinical practice guidelines,” Rosenthal, who treats transgender children, told Medscape Medical News.

And “People just aren’t really understanding the harm that regulating this kind of medicine would do,” stressed Cassandra Brady, MD, assistant professor of pediatric endocrinology at Vanderbilt University School of Medicine, Memphis, Tennessee.

The bills come at a time when gender identity clinics for minors around the world have seen a significant uptick in cases. And, as widely reported by Medscape Medical News, some clinicians have begun to question whether treatment decisions are outpacing science.

Queries about use of puberty blockers and cross-sex hormones have embroiled the United Kingdom’s only publicly funded Gender Identity Development Service (GIDS) in controversy, for example, with five clinicians resigning last year over concerns about overuse of the treatments.

And earlier this month, the UK National Health Service (NHS) announced an independent review of services including the use of puberty blockers and cross-sex hormones in youth with gender dysphoria.

Meanwhile, the topic has ignited debate in Sweden, where a report from the Board of Health and Welfare confirmed a 1,500% rise between 2008 and 2018 in gender dysphoria diagnoses among 13- to 17-year-olds born as girls, as detailed by The Guardian.

Indeed, there is some indication of a so-called “rapid-onset gender dysphoria” in born females who say they wish to become males and some clinicians have said this represents a “social” phenomenon.

But guidelines from US clinical organizations – including the American Academy of Pediatrics issued in 2018, the Endocrine Society as reported by Medscape Medical News in 2017, and the US Professional Association for Transgender Health (USPATH) – all support the use of medical treatment in adolescents with gender dysphoria who have received mental health evaluations from appropriately trained professionals.

More data needed but evidence to intervene is compelling

Joshua Safer, MD, FACP, FACE, executive director of the Mount Sinai Center for Transgender Medicine and Surgery, New York City, says the data “even if it’s rudimentary, are convincing that there is a biological component to gender identity.”

Attempts to manipulate gender identity in people who are born intersex, for example, have uniformly failed, he noted.

Yet it’s still not known what causes gender identity – whether it might be a result of a cluster of genes or a bundle in the brain, or some other biological process – said Safer, who treats transgender adults, but not children, and is also a coauthor of the aforementioned Endocrine Society Clinical Practice Guideline on Endocrine Treatment of Gender Dysphoric/Gender Incongruent Persons.

This is an area for future research, he noted.

Nevertheless, “The data for interventions for transgender people ... is compelling,” he added, noting evidence for improved mental health morbidity among those gender-questioning people who have medical interventions.

“Those data are modest at this point and we need better data, but they do all move in the same direction,” he asserted.

Meanwhile, a large group of around 1,800 parents of transgender and nonbinary children have called on legislators to withdraw the proposals in an open letter organized by the Human Rights Campaign.

“We know better than anyone what our children need in order to thrive: access to best practice, evidence-based gender-affirming healthcare,” the parents write.

“These healthcare decisions must be made on a case-by-case basis, in careful consultation with a medical team, and with the goal of reducing the physical and emotional distress experienced by many transgender children,” they continue.

“They should not be made by politicians who think they know better than medical professionals,” they add.

The American Academy of Child and Adolescent Psychiatry has also condemned state efforts “to block access to these recognized interventions,” it said in a statement.



Proponents of laws speak of harms

Most of the state proposals portray medical interventions as harmful to minors.

Missouri’s proposed legislation labels surgical or hormonal treatment for a child under age 18 “abuse or neglect”; a physician or anyone who assists or provides for the child would be charged with a felony.

One of the first bills was introduced in South Dakota in January. House bill 1057 would have charged clinicians providing gender-affirming care in anyone under age 16 with a misdemeanor punishable by up to a year in prison and a $2,000 fine.

The bill was defeated in the Senate after the South Dakota State Medical Association and several other physicians, families, and adolescents testified against the proposal, according to the Argus Leader.

The Endocrine Society applauded the failure and noted in a statement that it “supports physicians’ ability to provide the best evidence-based treatment to their patients,” and that “these decisions should be made by the family and physician, and not dictated by policymakers.”

Jack Turban, MD, a resident physician in child and adolescent psychiatry at Massachusetts General Hospital, Boston, who conducted a pivotal study of some 26,000 transgender adults showing that early administration of puberty blockers led to lower odds of lifetime suicidal ideation, also expressed dismay over the bills in an opinion piece for the New York Times.

“The potential benefits of providing gender-affirmative care typically outweigh the minor risks associated with treatment,” wrote Turban.

“State legislators need to educate themselves about these young people and their medical care before introducing legislation that will hurt them,” he added.
 

Few states seem to have approached clinicians for feedback

In Tennessee, lawmakers have approached some clinicians at Vanderbilt and have appreciated the feedback they’ve received so far, said Brady.

But that may be an exception. It seems that few medical organizations have been consulted in the crafting of bills in the other states: Colorado, Florida, Idaho, Illinois, Kentucky, Mississippi, Missouri, New Hampshire, Oklahoma, South Carolina, South Dakota, and West Virginia. Lawmakers in Ohio and Utah also are drafting proposals.

Physicians could be charged with a felony in Florida, Idaho, Kentucky, Missouri, and reportedly, in the Ohio proposal under development.

The bills have been introduced at the behest of some conservative groups that doubt the existence of gender dysphoria or who have questions about treatment: the Eagle Forum, the Alliance Defending Freedom, and the Kelsey Coalition.

In a recent tweet clarifying its position on state efforts, the Kelsey Coalition said it “supports all bills that protect children, even those that may provide criminal penalties, because we believe these medical interventions should never be performed on children.”

“However, we do not support state bills that are not victim-led or used for political gain,” they added.
 

Existing knowledge imperfect but treatment indicated for some

The bills have also garnered support from some endocrinologists who have raised concerns about puberty blockers and other medical treatments for gender dysphoria.

One is Michael K. Laidlaw, MD, a Rocklin, California–based endocrinologist who has not treated transgender people but frequently writes about the subject, most recently calling the use of puberty blockers “a public health emergency.”

Laidlaw joined several other clinicians who do not treat transgender people in testifying in favor of the South Dakota bill.

Last year, as previously reported by Medscape Medical News, Laidlaw, along with others, criticized the Endocrine Society’s 2017 Clinical Practice Guideline on Treating Dysphoric/Gender-Incongruent Persons in a letter to the Journal of Clinical Endocrinology & Metabolism.

They stated that there is no lab, imaging, or other objective test to diagnose someone as transgender and that “the consequences of this gender-affirmative therapy are not trivial and include potential sterility, sexual dysfunction, thromboembolic and cardiovascular disease, and malignancy.”

Laidlaw told Medscape Medical News at the time that “If we’re talking about [transgender] adults [who have gone through puberty of their biological sex] and who can make a decision, if they have been truly notified of the risks and benefits [of cross-sex hormones] and have also had psychological evaluation, and they decide, ‘This is still the right course for me,’ then I don’t have any objection.”

But considering the use of cross-sex hormones in children and adolescents is “quite a different story,” he contended.

In May 2019, Rosenthal, Safer and colleagues responded to Laidlaw’s letter in the same journal, stating that for the right person, puberty blockers and cross-sex hormones are appropriate, and that medications can improve mental health outcomes.

“We agree that research to validate the safety and efficacy of all forms of treatment is desirable,” they wrote, noting some of that research is underway.

“However, we believe physicians would fall short in their duty of care if they withheld hormonal treatment of gender dysphoria/incongruence in pubertal youth, when indicated, given the existing state of knowledge, imperfect though it is.”
 

 

 

Research to validate safety and efficacy of transgender TX underway

Rosenthal’s center at UCSF is one of four in the United States that has been carrying out a National Institutes of Health-funded long-term observational study of the impact of early medical intervention on transgender adolescents.

It will take time to get those results, but in the meantime, clinicians should act on what is known now, said Rosenthal.

“We already have very compelling data to suggest that the benefits [of treatment] outweigh the potential harms,” he said.

Rosenthal told Medscape Medical News that Laidlaw has advanced the notion that clinicians who prescribe puberty blockers are forcing those individuals into a transgender outcome.

“We don’t push anybody down any path,” he said. “The guidelines make these treatments available in a very specific subset of people who are evaluated by skilled mental health professionals,” said Rosenthal.

Both he and Safer acknowledge that puberty blockers do have the potential for some harm. For instance, a frank discussion needs to happen about the likely lack of future fertility, said Rosenthal.

“Everything we do in medicine has a theoretical risk of harm,” noted Safer.

However, he said, to deny a puberty blocker to an individual approaching puberty who is distraught about growing breasts — but then to possibly have to surgically remove them later — is in itself doing harm.

“Puberty blockers are exactly the epitome of ‘do no harm’ in this case,” argued Safer.

The medications are reversible, he said, adding that they also give an individual and the family time to think through whether the adolescent is transgender, and, if yes, what they want to do in terms of taking cross-sex hormones in the future or getting other interventions.

Safer acknowledged that this doesn’t mean there aren’t still some concerns, however.

For instance, once puberty blockers — which have the potential to interfere with bone development — are started, “How much harm are you willing to risk? Maybe a couple of years is okay, but maybe 6 years is not,” he said.

“So, we do discuss how quickly...you have to get to your next decision point, whether it be to actually introduce hormones or not to introduce hormones,” he explained.
 

State proposals will have chilling effect on gender-questioning kids

Clinicians say that even if the proposals do not become law, just the fact of their existence could have a chilling effect on gender-questioning children, their families, and doctors considering whether to provide treatment.

“They’re already in a hard position,” Brady said of her patients.

“They’re coming here to seek something for a life that they’ve already not wanted to live and then we have people who are trying to put a real big block on that – I see that obviously affecting their mental health,” she observed.

“I can’t imagine how their lives would be without this care,” Brady said.

With the bills being out there, “two things can happen – one is, it can be very depressing and limiting, but it can also embolden people,” Rosenthal told Medscape Medical News.

“The people behind these things are the same people that have tried to stop our research at the National Institutes of Health (NIH),” he explained.

“These people are going to do everything they can, whether it’s to go state by state to try and exhaust us, or go to the NIH and try to get them to pull the plug on our research,” said Rosenthal.

Safer believes it’s ill-considered to try to legislate any aspect of medicine.

“The pitfalls of trying to legislate these things are myriad,” he said.

“Across all of medicine, interventions are very customized. Can you imagine a state legislature trying to legislate the optimal approach in medicines that can and cannot be given to people with diabetes? How crazy that would be,” he noted.

Rosenthal has served on an advisory panel for Endo Pharmaceuticals and is a grantee of the NIH. Safer has also served on an advisory panel for Endo Pharmaceuticals. Brady has reported no relevant financial relationships.

This article first appeared on Medscape.com.

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Many US endocrinologists are crying foul as a growing number of state lawmakers are attempting to enact legislation that would prohibit, and in some cases criminalize, medical treatment for minors with gender dysphoria.

As of press time, 13 states had introduced such bills, and legislators in two additional states said they were drafting bills. So far, one — in South Dakota — was defeated in a Senate committee, and another, in Florida, was essentially tabled without being enacted.

They all have a common goal of preventing minors from receiving puberty blockers, cross-sex hormones, or gender-affirmation surgery.

“These things are being proposed based on a lot of misinformation,” said Stephen Rosenthal, MD, professor of pediatrics at the University of California, San Francisco (UCSF), and a past president of the Pediatric Endocrine Society.

Lawmakers “are not looking at the scientific evidence that supports current clinical practice guidelines,” Rosenthal, who treats transgender children, told Medscape Medical News.

And “People just aren’t really understanding the harm that regulating this kind of medicine would do,” stressed Cassandra Brady, MD, assistant professor of pediatric endocrinology at Vanderbilt University School of Medicine, Memphis, Tennessee.

The bills come at a time when gender identity clinics for minors around the world have seen a significant uptick in cases. And, as widely reported by Medscape Medical News, some clinicians have begun to question whether treatment decisions are outpacing science.

Queries about use of puberty blockers and cross-sex hormones have embroiled the United Kingdom’s only publicly funded Gender Identity Development Service (GIDS) in controversy, for example, with five clinicians resigning last year over concerns about overuse of the treatments.

And earlier this month, the UK National Health Service (NHS) announced an independent review of services including the use of puberty blockers and cross-sex hormones in youth with gender dysphoria.

Meanwhile, the topic has ignited debate in Sweden, where a report from the Board of Health and Welfare confirmed a 1,500% rise between 2008 and 2018 in gender dysphoria diagnoses among 13- to 17-year-olds born as girls, as detailed by The Guardian.

Indeed, there is some indication of a so-called “rapid-onset gender dysphoria” in born females who say they wish to become males and some clinicians have said this represents a “social” phenomenon.

But guidelines from US clinical organizations – including the American Academy of Pediatrics issued in 2018, the Endocrine Society as reported by Medscape Medical News in 2017, and the US Professional Association for Transgender Health (USPATH) – all support the use of medical treatment in adolescents with gender dysphoria who have received mental health evaluations from appropriately trained professionals.

More data needed but evidence to intervene is compelling

Joshua Safer, MD, FACP, FACE, executive director of the Mount Sinai Center for Transgender Medicine and Surgery, New York City, says the data “even if it’s rudimentary, are convincing that there is a biological component to gender identity.”

Attempts to manipulate gender identity in people who are born intersex, for example, have uniformly failed, he noted.

Yet it’s still not known what causes gender identity – whether it might be a result of a cluster of genes or a bundle in the brain, or some other biological process – said Safer, who treats transgender adults, but not children, and is also a coauthor of the aforementioned Endocrine Society Clinical Practice Guideline on Endocrine Treatment of Gender Dysphoric/Gender Incongruent Persons.

This is an area for future research, he noted.

Nevertheless, “The data for interventions for transgender people ... is compelling,” he added, noting evidence for improved mental health morbidity among those gender-questioning people who have medical interventions.

“Those data are modest at this point and we need better data, but they do all move in the same direction,” he asserted.

Meanwhile, a large group of around 1,800 parents of transgender and nonbinary children have called on legislators to withdraw the proposals in an open letter organized by the Human Rights Campaign.

“We know better than anyone what our children need in order to thrive: access to best practice, evidence-based gender-affirming healthcare,” the parents write.

“These healthcare decisions must be made on a case-by-case basis, in careful consultation with a medical team, and with the goal of reducing the physical and emotional distress experienced by many transgender children,” they continue.

“They should not be made by politicians who think they know better than medical professionals,” they add.

The American Academy of Child and Adolescent Psychiatry has also condemned state efforts “to block access to these recognized interventions,” it said in a statement.



Proponents of laws speak of harms

Most of the state proposals portray medical interventions as harmful to minors.

Missouri’s proposed legislation labels surgical or hormonal treatment for a child under age 18 “abuse or neglect”; a physician or anyone who assists or provides for the child would be charged with a felony.

One of the first bills was introduced in South Dakota in January. House bill 1057 would have charged clinicians providing gender-affirming care in anyone under age 16 with a misdemeanor punishable by up to a year in prison and a $2,000 fine.

The bill was defeated in the Senate after the South Dakota State Medical Association and several other physicians, families, and adolescents testified against the proposal, according to the Argus Leader.

The Endocrine Society applauded the failure and noted in a statement that it “supports physicians’ ability to provide the best evidence-based treatment to their patients,” and that “these decisions should be made by the family and physician, and not dictated by policymakers.”

Jack Turban, MD, a resident physician in child and adolescent psychiatry at Massachusetts General Hospital, Boston, who conducted a pivotal study of some 26,000 transgender adults showing that early administration of puberty blockers led to lower odds of lifetime suicidal ideation, also expressed dismay over the bills in an opinion piece for the New York Times.

“The potential benefits of providing gender-affirmative care typically outweigh the minor risks associated with treatment,” wrote Turban.

“State legislators need to educate themselves about these young people and their medical care before introducing legislation that will hurt them,” he added.
 

Few states seem to have approached clinicians for feedback

In Tennessee, lawmakers have approached some clinicians at Vanderbilt and have appreciated the feedback they’ve received so far, said Brady.

But that may be an exception. It seems that few medical organizations have been consulted in the crafting of bills in the other states: Colorado, Florida, Idaho, Illinois, Kentucky, Mississippi, Missouri, New Hampshire, Oklahoma, South Carolina, South Dakota, and West Virginia. Lawmakers in Ohio and Utah also are drafting proposals.

Physicians could be charged with a felony in Florida, Idaho, Kentucky, Missouri, and reportedly, in the Ohio proposal under development.

The bills have been introduced at the behest of some conservative groups that doubt the existence of gender dysphoria or who have questions about treatment: the Eagle Forum, the Alliance Defending Freedom, and the Kelsey Coalition.

In a recent tweet clarifying its position on state efforts, the Kelsey Coalition said it “supports all bills that protect children, even those that may provide criminal penalties, because we believe these medical interventions should never be performed on children.”

“However, we do not support state bills that are not victim-led or used for political gain,” they added.
 

Existing knowledge imperfect but treatment indicated for some

The bills have also garnered support from some endocrinologists who have raised concerns about puberty blockers and other medical treatments for gender dysphoria.

One is Michael K. Laidlaw, MD, a Rocklin, California–based endocrinologist who has not treated transgender people but frequently writes about the subject, most recently calling the use of puberty blockers “a public health emergency.”

Laidlaw joined several other clinicians who do not treat transgender people in testifying in favor of the South Dakota bill.

Last year, as previously reported by Medscape Medical News, Laidlaw, along with others, criticized the Endocrine Society’s 2017 Clinical Practice Guideline on Treating Dysphoric/Gender-Incongruent Persons in a letter to the Journal of Clinical Endocrinology & Metabolism.

They stated that there is no lab, imaging, or other objective test to diagnose someone as transgender and that “the consequences of this gender-affirmative therapy are not trivial and include potential sterility, sexual dysfunction, thromboembolic and cardiovascular disease, and malignancy.”

Laidlaw told Medscape Medical News at the time that “If we’re talking about [transgender] adults [who have gone through puberty of their biological sex] and who can make a decision, if they have been truly notified of the risks and benefits [of cross-sex hormones] and have also had psychological evaluation, and they decide, ‘This is still the right course for me,’ then I don’t have any objection.”

But considering the use of cross-sex hormones in children and adolescents is “quite a different story,” he contended.

In May 2019, Rosenthal, Safer and colleagues responded to Laidlaw’s letter in the same journal, stating that for the right person, puberty blockers and cross-sex hormones are appropriate, and that medications can improve mental health outcomes.

“We agree that research to validate the safety and efficacy of all forms of treatment is desirable,” they wrote, noting some of that research is underway.

“However, we believe physicians would fall short in their duty of care if they withheld hormonal treatment of gender dysphoria/incongruence in pubertal youth, when indicated, given the existing state of knowledge, imperfect though it is.”
 

 

 

Research to validate safety and efficacy of transgender TX underway

Rosenthal’s center at UCSF is one of four in the United States that has been carrying out a National Institutes of Health-funded long-term observational study of the impact of early medical intervention on transgender adolescents.

It will take time to get those results, but in the meantime, clinicians should act on what is known now, said Rosenthal.

“We already have very compelling data to suggest that the benefits [of treatment] outweigh the potential harms,” he said.

Rosenthal told Medscape Medical News that Laidlaw has advanced the notion that clinicians who prescribe puberty blockers are forcing those individuals into a transgender outcome.

“We don’t push anybody down any path,” he said. “The guidelines make these treatments available in a very specific subset of people who are evaluated by skilled mental health professionals,” said Rosenthal.

Both he and Safer acknowledge that puberty blockers do have the potential for some harm. For instance, a frank discussion needs to happen about the likely lack of future fertility, said Rosenthal.

“Everything we do in medicine has a theoretical risk of harm,” noted Safer.

However, he said, to deny a puberty blocker to an individual approaching puberty who is distraught about growing breasts — but then to possibly have to surgically remove them later — is in itself doing harm.

“Puberty blockers are exactly the epitome of ‘do no harm’ in this case,” argued Safer.

The medications are reversible, he said, adding that they also give an individual and the family time to think through whether the adolescent is transgender, and, if yes, what they want to do in terms of taking cross-sex hormones in the future or getting other interventions.

Safer acknowledged that this doesn’t mean there aren’t still some concerns, however.

For instance, once puberty blockers — which have the potential to interfere with bone development — are started, “How much harm are you willing to risk? Maybe a couple of years is okay, but maybe 6 years is not,” he said.

“So, we do discuss how quickly...you have to get to your next decision point, whether it be to actually introduce hormones or not to introduce hormones,” he explained.
 

State proposals will have chilling effect on gender-questioning kids

Clinicians say that even if the proposals do not become law, just the fact of their existence could have a chilling effect on gender-questioning children, their families, and doctors considering whether to provide treatment.

“They’re already in a hard position,” Brady said of her patients.

“They’re coming here to seek something for a life that they’ve already not wanted to live and then we have people who are trying to put a real big block on that – I see that obviously affecting their mental health,” she observed.

“I can’t imagine how their lives would be without this care,” Brady said.

With the bills being out there, “two things can happen – one is, it can be very depressing and limiting, but it can also embolden people,” Rosenthal told Medscape Medical News.

“The people behind these things are the same people that have tried to stop our research at the National Institutes of Health (NIH),” he explained.

“These people are going to do everything they can, whether it’s to go state by state to try and exhaust us, or go to the NIH and try to get them to pull the plug on our research,” said Rosenthal.

Safer believes it’s ill-considered to try to legislate any aspect of medicine.

“The pitfalls of trying to legislate these things are myriad,” he said.

“Across all of medicine, interventions are very customized. Can you imagine a state legislature trying to legislate the optimal approach in medicines that can and cannot be given to people with diabetes? How crazy that would be,” he noted.

Rosenthal has served on an advisory panel for Endo Pharmaceuticals and is a grantee of the NIH. Safer has also served on an advisory panel for Endo Pharmaceuticals. Brady has reported no relevant financial relationships.

This article first appeared on Medscape.com.

 

Many US endocrinologists are crying foul as a growing number of state lawmakers are attempting to enact legislation that would prohibit, and in some cases criminalize, medical treatment for minors with gender dysphoria.

As of press time, 13 states had introduced such bills, and legislators in two additional states said they were drafting bills. So far, one — in South Dakota — was defeated in a Senate committee, and another, in Florida, was essentially tabled without being enacted.

They all have a common goal of preventing minors from receiving puberty blockers, cross-sex hormones, or gender-affirmation surgery.

“These things are being proposed based on a lot of misinformation,” said Stephen Rosenthal, MD, professor of pediatrics at the University of California, San Francisco (UCSF), and a past president of the Pediatric Endocrine Society.

Lawmakers “are not looking at the scientific evidence that supports current clinical practice guidelines,” Rosenthal, who treats transgender children, told Medscape Medical News.

And “People just aren’t really understanding the harm that regulating this kind of medicine would do,” stressed Cassandra Brady, MD, assistant professor of pediatric endocrinology at Vanderbilt University School of Medicine, Memphis, Tennessee.

The bills come at a time when gender identity clinics for minors around the world have seen a significant uptick in cases. And, as widely reported by Medscape Medical News, some clinicians have begun to question whether treatment decisions are outpacing science.

Queries about use of puberty blockers and cross-sex hormones have embroiled the United Kingdom’s only publicly funded Gender Identity Development Service (GIDS) in controversy, for example, with five clinicians resigning last year over concerns about overuse of the treatments.

And earlier this month, the UK National Health Service (NHS) announced an independent review of services including the use of puberty blockers and cross-sex hormones in youth with gender dysphoria.

Meanwhile, the topic has ignited debate in Sweden, where a report from the Board of Health and Welfare confirmed a 1,500% rise between 2008 and 2018 in gender dysphoria diagnoses among 13- to 17-year-olds born as girls, as detailed by The Guardian.

Indeed, there is some indication of a so-called “rapid-onset gender dysphoria” in born females who say they wish to become males and some clinicians have said this represents a “social” phenomenon.

But guidelines from US clinical organizations – including the American Academy of Pediatrics issued in 2018, the Endocrine Society as reported by Medscape Medical News in 2017, and the US Professional Association for Transgender Health (USPATH) – all support the use of medical treatment in adolescents with gender dysphoria who have received mental health evaluations from appropriately trained professionals.

More data needed but evidence to intervene is compelling

Joshua Safer, MD, FACP, FACE, executive director of the Mount Sinai Center for Transgender Medicine and Surgery, New York City, says the data “even if it’s rudimentary, are convincing that there is a biological component to gender identity.”

Attempts to manipulate gender identity in people who are born intersex, for example, have uniformly failed, he noted.

Yet it’s still not known what causes gender identity – whether it might be a result of a cluster of genes or a bundle in the brain, or some other biological process – said Safer, who treats transgender adults, but not children, and is also a coauthor of the aforementioned Endocrine Society Clinical Practice Guideline on Endocrine Treatment of Gender Dysphoric/Gender Incongruent Persons.

This is an area for future research, he noted.

Nevertheless, “The data for interventions for transgender people ... is compelling,” he added, noting evidence for improved mental health morbidity among those gender-questioning people who have medical interventions.

“Those data are modest at this point and we need better data, but they do all move in the same direction,” he asserted.

Meanwhile, a large group of around 1,800 parents of transgender and nonbinary children have called on legislators to withdraw the proposals in an open letter organized by the Human Rights Campaign.

“We know better than anyone what our children need in order to thrive: access to best practice, evidence-based gender-affirming healthcare,” the parents write.

“These healthcare decisions must be made on a case-by-case basis, in careful consultation with a medical team, and with the goal of reducing the physical and emotional distress experienced by many transgender children,” they continue.

“They should not be made by politicians who think they know better than medical professionals,” they add.

The American Academy of Child and Adolescent Psychiatry has also condemned state efforts “to block access to these recognized interventions,” it said in a statement.



Proponents of laws speak of harms

Most of the state proposals portray medical interventions as harmful to minors.

Missouri’s proposed legislation labels surgical or hormonal treatment for a child under age 18 “abuse or neglect”; a physician or anyone who assists or provides for the child would be charged with a felony.

One of the first bills was introduced in South Dakota in January. House bill 1057 would have charged clinicians providing gender-affirming care in anyone under age 16 with a misdemeanor punishable by up to a year in prison and a $2,000 fine.

The bill was defeated in the Senate after the South Dakota State Medical Association and several other physicians, families, and adolescents testified against the proposal, according to the Argus Leader.

The Endocrine Society applauded the failure and noted in a statement that it “supports physicians’ ability to provide the best evidence-based treatment to their patients,” and that “these decisions should be made by the family and physician, and not dictated by policymakers.”

Jack Turban, MD, a resident physician in child and adolescent psychiatry at Massachusetts General Hospital, Boston, who conducted a pivotal study of some 26,000 transgender adults showing that early administration of puberty blockers led to lower odds of lifetime suicidal ideation, also expressed dismay over the bills in an opinion piece for the New York Times.

“The potential benefits of providing gender-affirmative care typically outweigh the minor risks associated with treatment,” wrote Turban.

“State legislators need to educate themselves about these young people and their medical care before introducing legislation that will hurt them,” he added.
 

Few states seem to have approached clinicians for feedback

In Tennessee, lawmakers have approached some clinicians at Vanderbilt and have appreciated the feedback they’ve received so far, said Brady.

But that may be an exception. It seems that few medical organizations have been consulted in the crafting of bills in the other states: Colorado, Florida, Idaho, Illinois, Kentucky, Mississippi, Missouri, New Hampshire, Oklahoma, South Carolina, South Dakota, and West Virginia. Lawmakers in Ohio and Utah also are drafting proposals.

Physicians could be charged with a felony in Florida, Idaho, Kentucky, Missouri, and reportedly, in the Ohio proposal under development.

The bills have been introduced at the behest of some conservative groups that doubt the existence of gender dysphoria or who have questions about treatment: the Eagle Forum, the Alliance Defending Freedom, and the Kelsey Coalition.

In a recent tweet clarifying its position on state efforts, the Kelsey Coalition said it “supports all bills that protect children, even those that may provide criminal penalties, because we believe these medical interventions should never be performed on children.”

“However, we do not support state bills that are not victim-led or used for political gain,” they added.
 

Existing knowledge imperfect but treatment indicated for some

The bills have also garnered support from some endocrinologists who have raised concerns about puberty blockers and other medical treatments for gender dysphoria.

One is Michael K. Laidlaw, MD, a Rocklin, California–based endocrinologist who has not treated transgender people but frequently writes about the subject, most recently calling the use of puberty blockers “a public health emergency.”

Laidlaw joined several other clinicians who do not treat transgender people in testifying in favor of the South Dakota bill.

Last year, as previously reported by Medscape Medical News, Laidlaw, along with others, criticized the Endocrine Society’s 2017 Clinical Practice Guideline on Treating Dysphoric/Gender-Incongruent Persons in a letter to the Journal of Clinical Endocrinology & Metabolism.

They stated that there is no lab, imaging, or other objective test to diagnose someone as transgender and that “the consequences of this gender-affirmative therapy are not trivial and include potential sterility, sexual dysfunction, thromboembolic and cardiovascular disease, and malignancy.”

Laidlaw told Medscape Medical News at the time that “If we’re talking about [transgender] adults [who have gone through puberty of their biological sex] and who can make a decision, if they have been truly notified of the risks and benefits [of cross-sex hormones] and have also had psychological evaluation, and they decide, ‘This is still the right course for me,’ then I don’t have any objection.”

But considering the use of cross-sex hormones in children and adolescents is “quite a different story,” he contended.

In May 2019, Rosenthal, Safer and colleagues responded to Laidlaw’s letter in the same journal, stating that for the right person, puberty blockers and cross-sex hormones are appropriate, and that medications can improve mental health outcomes.

“We agree that research to validate the safety and efficacy of all forms of treatment is desirable,” they wrote, noting some of that research is underway.

“However, we believe physicians would fall short in their duty of care if they withheld hormonal treatment of gender dysphoria/incongruence in pubertal youth, when indicated, given the existing state of knowledge, imperfect though it is.”
 

 

 

Research to validate safety and efficacy of transgender TX underway

Rosenthal’s center at UCSF is one of four in the United States that has been carrying out a National Institutes of Health-funded long-term observational study of the impact of early medical intervention on transgender adolescents.

It will take time to get those results, but in the meantime, clinicians should act on what is known now, said Rosenthal.

“We already have very compelling data to suggest that the benefits [of treatment] outweigh the potential harms,” he said.

Rosenthal told Medscape Medical News that Laidlaw has advanced the notion that clinicians who prescribe puberty blockers are forcing those individuals into a transgender outcome.

“We don’t push anybody down any path,” he said. “The guidelines make these treatments available in a very specific subset of people who are evaluated by skilled mental health professionals,” said Rosenthal.

Both he and Safer acknowledge that puberty blockers do have the potential for some harm. For instance, a frank discussion needs to happen about the likely lack of future fertility, said Rosenthal.

“Everything we do in medicine has a theoretical risk of harm,” noted Safer.

However, he said, to deny a puberty blocker to an individual approaching puberty who is distraught about growing breasts — but then to possibly have to surgically remove them later — is in itself doing harm.

“Puberty blockers are exactly the epitome of ‘do no harm’ in this case,” argued Safer.

The medications are reversible, he said, adding that they also give an individual and the family time to think through whether the adolescent is transgender, and, if yes, what they want to do in terms of taking cross-sex hormones in the future or getting other interventions.

Safer acknowledged that this doesn’t mean there aren’t still some concerns, however.

For instance, once puberty blockers — which have the potential to interfere with bone development — are started, “How much harm are you willing to risk? Maybe a couple of years is okay, but maybe 6 years is not,” he said.

“So, we do discuss how quickly...you have to get to your next decision point, whether it be to actually introduce hormones or not to introduce hormones,” he explained.
 

State proposals will have chilling effect on gender-questioning kids

Clinicians say that even if the proposals do not become law, just the fact of their existence could have a chilling effect on gender-questioning children, their families, and doctors considering whether to provide treatment.

“They’re already in a hard position,” Brady said of her patients.

“They’re coming here to seek something for a life that they’ve already not wanted to live and then we have people who are trying to put a real big block on that – I see that obviously affecting their mental health,” she observed.

“I can’t imagine how their lives would be without this care,” Brady said.

With the bills being out there, “two things can happen – one is, it can be very depressing and limiting, but it can also embolden people,” Rosenthal told Medscape Medical News.

“The people behind these things are the same people that have tried to stop our research at the National Institutes of Health (NIH),” he explained.

“These people are going to do everything they can, whether it’s to go state by state to try and exhaust us, or go to the NIH and try to get them to pull the plug on our research,” said Rosenthal.

Safer believes it’s ill-considered to try to legislate any aspect of medicine.

“The pitfalls of trying to legislate these things are myriad,” he said.

“Across all of medicine, interventions are very customized. Can you imagine a state legislature trying to legislate the optimal approach in medicines that can and cannot be given to people with diabetes? How crazy that would be,” he noted.

Rosenthal has served on an advisory panel for Endo Pharmaceuticals and is a grantee of the NIH. Safer has also served on an advisory panel for Endo Pharmaceuticals. Brady has reported no relevant financial relationships.

This article first appeared on Medscape.com.

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Course director Dr. Benji Mathews offers highlights

Benji K. Mathews, MD, SFHM, CLHM, chief of hospital medicine at Regions Hospital, HealthPartners, in St. Paul, Minn., and director of point of care ultrasound (POCUS) for hospital medicine at HealthPartners, is the course director for the Society of Hospital Medicine’s 2020 Annual Conference (HM20), which will be held April 16-18 in San Diego.

Dr. Benji K. Mathews

Dr. Mathews, also an associate professor of medicine at the University of Minnesota, Minneapolis, sat down with the Hospitalist to discuss the role of the course director in formulating the HM20 agenda, as well as highlighting some exciting educational sessions, workshops, and other events during the annual conference.

In your role as course director for HM20, did you have a particular theme you wanted to emphasize?

We did not go with a single theme, because we’re trying to provide a comprehensive educational and networking opportunity, so trying to focus the conference on a single theme a year in advance did not seem very prudent. There are multiple themes, from health disparities to technology to education. For a field like hospital medicine that’s rapidly evolving, we thought it best to keep it open and instead further develop the conference tracks: What new tracks can be created, what older tracks can be maintained because they have been highly successful, and which tracks do we retire?

Can you discuss some of the tracks at HM20?

The new track we have this year is the Technology track. That track will examine current and future technology that will impact care delivery, including telehealth, wearables, apps for digital learning, and for clinicians at the bedside. Innovation is at the core of hospital medicine, and we’re constantly exploring how to deliver efficient, timely, and effective care. “Future-casting” is important, and this track speaks to that.

There are some old standards that I would also recommend. The “Great Debate” is one of the hardest to finalize, because while you can create a great session topic and title, we need to find two talented speakers for a debate, as that is very different than a presentation. The speakers take opposing sides on clinical decisions, the latest literature reviews, best practices, and the audience gets to vote. Topics we’re using this year include “Procalcitonin: Friend or Foe,” “Guidelines Controversies in Inpatient Care,” and “POCUS vs. Physical Exam – Tech vs. Tradition.” Some of the debaters include Carrie Herzke, MD, of Johns Hopkins University, Baltimore; Daniel Dressler, MD, of Emory University, Atlanta; Jordan Messler, MD, of Morton Plant Hospital in Clearwater, Fla.; and Michelle Guidry, MD, of the Southeast Louisiana Veterans Health Care System and Tulane University, both in New Orleans; Ria Dancel, MD, from the University of North Carolina, and Michael Janjigian, MD, from NYU Langone Health.

One of the highlights this year is that we’re trying to bring more gender equity into our speaker lineup. Rarely will we have only two male speakers at a session, and I don’t think we have any all-male panels, jokingly called “manels” in the past.

 

 

Are there some “tried-and-true” tracks or sessions that are returning in HM20?

I’d like to highlight the Clinical Mastery track. That was a new track last year, and has returned this year. That track is focused on helping hospitalists become expert diagnosticians at the bedside. “Pitfalls, Myths and Pearls in Diagnostic Reasoning” is one session to note in that track, with Dr. Gopi Astik, Dr. Andrew Olson, and Dr. Reza Manesh. Another special focus this year within Clinical Mastery will be on using the rational clinical exam to augment your diagnostic skills.

When programming the annual conference, how do you balance the needs of community hospitalists with academic hospitalists?

The value we have on the annual conference committee is that there are a fair number of community hospitalists, advance practice clinicians, representation from med-peds, and family practice, for instance. Generally, there is a wide sampling of the decision makers from across the specialty helping to program the conference – we have great academic institutions, but we have representation from the larger impressive community as well. That said, it is hard to curate content that is solely for a specific subset of hospitalists without marginalizing other subsets. We don’t want to isolate people. A lot of our Rapid Fire topics are geared toward frontline hospitalists. This is content that will directly impact hospitalists as they care for patients. And some of the content that we’re bringing in this year with more emphasis are in health equity and disparities. Academic groups study this, however frontline clinicians from both academic and community settings deal with this every day, relating to both patients and staff. For example, in regard to patients, we have content focused on caring for the LGBTQ community, sessions on refugee health, as well as hospitalists and global health. We have an emphasis on diversity and inclusion in the workplace, with speakers from both community and academic settings. There will be good sessions with gender equity themes, practical tips in promotion and hiring practices. There are a couple workshops on gender equity; one to note is “Top 10 Ways for Men + Women to Engage in Gender Equity.”

Can you speak to the content that is targeted at nurse practitioners and physician assistants?

This is near and dear to my heart as I’m from an institution that has a positive history of strong partnerships with our advance practice clinician colleagues. Our goal this year was to continue to highlight nurse practitioners and physician assistants in a track dedicated to them. We have a core session called “Training Day: How to Onboard and Operationalize an Advanced Practice Provider Workforce” – this is a “bread-and-butter” session presented by speakers who have built programs from the ground up. Other important sessions address how to advance the careers of NPs and PAs – “Professional Development for NP/PAs” – and on mentorship, which emphasizes a culture of partnership on projects like providing high quality, safe care.

Are there any workshops that attendees should take note of?

One I would like to highlight is “Survive! The POCUS Apocalypse Adventure.” This highly anticipated offering is preregistration required, hosted for the first time on day 1 of the main conference. The workshop will introduce the gamification of POCUS to hospitalists. Each participant will be expected to perform ultrasound examinations and interpret their findings in order to gather clues that will lead to the cure for a zombie apocalypse! There are a lot of innovations this year in programming the Annual Conference, and gamification might be considered risky but I think it has a very good chance of success with entertainment and learning combined into one amazing workshop.

What are some other innovations that the annual conference committee has planned for 2020?

Another exciting innovation is what we call “Breakfast with an Expert.” This is a new rapid-fire didactic session format where we have three experts speak on different hot topics, such as “Nutritional Counseling” (led by Kate Shafto, MD), “Things I Wish I Knew Earlier in my Career” (Brad Sharpe, MD), and “Case-Based Controversies in Ethics” (Hannah Lipman, MD). These take place on the very first day of the conference, before the opening general session. Attendees can grab their breakfast and listen to any of these sessions before they head into the plenary. Hospitalists have asked for more content, so we’re adding these as a response to that hunger for more educational content. This format is supposed to be a bit cozier, with more Q&A.

Another aspect of HM20 to highlight is the Simulation Center. The Sim Center is a space that hosts a variety of hospital medicine skill development areas. This is an interactive center where attendees can learn to perform bedside procedures and learn hands-on skills with diagnostic point-of-care ultrasound during the first 2 days of the conference. The Sim Center is slightly different than the precourses, in that we are offering 1-hour blocks of small-group instruction for which attendees preregister. This aligns with larger SHM efforts to encourage hospitalists to be more confident with bedside procedures, and engage with SHM’s ultrasound offerings, including the certificate of completion program.

To register for the 2020 Annual Conference, including precourses, visit https://shmannualconference.org/register/.

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Course director Dr. Benji Mathews offers highlights

Course director Dr. Benji Mathews offers highlights

Benji K. Mathews, MD, SFHM, CLHM, chief of hospital medicine at Regions Hospital, HealthPartners, in St. Paul, Minn., and director of point of care ultrasound (POCUS) for hospital medicine at HealthPartners, is the course director for the Society of Hospital Medicine’s 2020 Annual Conference (HM20), which will be held April 16-18 in San Diego.

Dr. Benji K. Mathews

Dr. Mathews, also an associate professor of medicine at the University of Minnesota, Minneapolis, sat down with the Hospitalist to discuss the role of the course director in formulating the HM20 agenda, as well as highlighting some exciting educational sessions, workshops, and other events during the annual conference.

In your role as course director for HM20, did you have a particular theme you wanted to emphasize?

We did not go with a single theme, because we’re trying to provide a comprehensive educational and networking opportunity, so trying to focus the conference on a single theme a year in advance did not seem very prudent. There are multiple themes, from health disparities to technology to education. For a field like hospital medicine that’s rapidly evolving, we thought it best to keep it open and instead further develop the conference tracks: What new tracks can be created, what older tracks can be maintained because they have been highly successful, and which tracks do we retire?

Can you discuss some of the tracks at HM20?

The new track we have this year is the Technology track. That track will examine current and future technology that will impact care delivery, including telehealth, wearables, apps for digital learning, and for clinicians at the bedside. Innovation is at the core of hospital medicine, and we’re constantly exploring how to deliver efficient, timely, and effective care. “Future-casting” is important, and this track speaks to that.

There are some old standards that I would also recommend. The “Great Debate” is one of the hardest to finalize, because while you can create a great session topic and title, we need to find two talented speakers for a debate, as that is very different than a presentation. The speakers take opposing sides on clinical decisions, the latest literature reviews, best practices, and the audience gets to vote. Topics we’re using this year include “Procalcitonin: Friend or Foe,” “Guidelines Controversies in Inpatient Care,” and “POCUS vs. Physical Exam – Tech vs. Tradition.” Some of the debaters include Carrie Herzke, MD, of Johns Hopkins University, Baltimore; Daniel Dressler, MD, of Emory University, Atlanta; Jordan Messler, MD, of Morton Plant Hospital in Clearwater, Fla.; and Michelle Guidry, MD, of the Southeast Louisiana Veterans Health Care System and Tulane University, both in New Orleans; Ria Dancel, MD, from the University of North Carolina, and Michael Janjigian, MD, from NYU Langone Health.

One of the highlights this year is that we’re trying to bring more gender equity into our speaker lineup. Rarely will we have only two male speakers at a session, and I don’t think we have any all-male panels, jokingly called “manels” in the past.

 

 

Are there some “tried-and-true” tracks or sessions that are returning in HM20?

I’d like to highlight the Clinical Mastery track. That was a new track last year, and has returned this year. That track is focused on helping hospitalists become expert diagnosticians at the bedside. “Pitfalls, Myths and Pearls in Diagnostic Reasoning” is one session to note in that track, with Dr. Gopi Astik, Dr. Andrew Olson, and Dr. Reza Manesh. Another special focus this year within Clinical Mastery will be on using the rational clinical exam to augment your diagnostic skills.

When programming the annual conference, how do you balance the needs of community hospitalists with academic hospitalists?

The value we have on the annual conference committee is that there are a fair number of community hospitalists, advance practice clinicians, representation from med-peds, and family practice, for instance. Generally, there is a wide sampling of the decision makers from across the specialty helping to program the conference – we have great academic institutions, but we have representation from the larger impressive community as well. That said, it is hard to curate content that is solely for a specific subset of hospitalists without marginalizing other subsets. We don’t want to isolate people. A lot of our Rapid Fire topics are geared toward frontline hospitalists. This is content that will directly impact hospitalists as they care for patients. And some of the content that we’re bringing in this year with more emphasis are in health equity and disparities. Academic groups study this, however frontline clinicians from both academic and community settings deal with this every day, relating to both patients and staff. For example, in regard to patients, we have content focused on caring for the LGBTQ community, sessions on refugee health, as well as hospitalists and global health. We have an emphasis on diversity and inclusion in the workplace, with speakers from both community and academic settings. There will be good sessions with gender equity themes, practical tips in promotion and hiring practices. There are a couple workshops on gender equity; one to note is “Top 10 Ways for Men + Women to Engage in Gender Equity.”

Can you speak to the content that is targeted at nurse practitioners and physician assistants?

This is near and dear to my heart as I’m from an institution that has a positive history of strong partnerships with our advance practice clinician colleagues. Our goal this year was to continue to highlight nurse practitioners and physician assistants in a track dedicated to them. We have a core session called “Training Day: How to Onboard and Operationalize an Advanced Practice Provider Workforce” – this is a “bread-and-butter” session presented by speakers who have built programs from the ground up. Other important sessions address how to advance the careers of NPs and PAs – “Professional Development for NP/PAs” – and on mentorship, which emphasizes a culture of partnership on projects like providing high quality, safe care.

Are there any workshops that attendees should take note of?

One I would like to highlight is “Survive! The POCUS Apocalypse Adventure.” This highly anticipated offering is preregistration required, hosted for the first time on day 1 of the main conference. The workshop will introduce the gamification of POCUS to hospitalists. Each participant will be expected to perform ultrasound examinations and interpret their findings in order to gather clues that will lead to the cure for a zombie apocalypse! There are a lot of innovations this year in programming the Annual Conference, and gamification might be considered risky but I think it has a very good chance of success with entertainment and learning combined into one amazing workshop.

What are some other innovations that the annual conference committee has planned for 2020?

Another exciting innovation is what we call “Breakfast with an Expert.” This is a new rapid-fire didactic session format where we have three experts speak on different hot topics, such as “Nutritional Counseling” (led by Kate Shafto, MD), “Things I Wish I Knew Earlier in my Career” (Brad Sharpe, MD), and “Case-Based Controversies in Ethics” (Hannah Lipman, MD). These take place on the very first day of the conference, before the opening general session. Attendees can grab their breakfast and listen to any of these sessions before they head into the plenary. Hospitalists have asked for more content, so we’re adding these as a response to that hunger for more educational content. This format is supposed to be a bit cozier, with more Q&A.

Another aspect of HM20 to highlight is the Simulation Center. The Sim Center is a space that hosts a variety of hospital medicine skill development areas. This is an interactive center where attendees can learn to perform bedside procedures and learn hands-on skills with diagnostic point-of-care ultrasound during the first 2 days of the conference. The Sim Center is slightly different than the precourses, in that we are offering 1-hour blocks of small-group instruction for which attendees preregister. This aligns with larger SHM efforts to encourage hospitalists to be more confident with bedside procedures, and engage with SHM’s ultrasound offerings, including the certificate of completion program.

To register for the 2020 Annual Conference, including precourses, visit https://shmannualconference.org/register/.

Benji K. Mathews, MD, SFHM, CLHM, chief of hospital medicine at Regions Hospital, HealthPartners, in St. Paul, Minn., and director of point of care ultrasound (POCUS) for hospital medicine at HealthPartners, is the course director for the Society of Hospital Medicine’s 2020 Annual Conference (HM20), which will be held April 16-18 in San Diego.

Dr. Benji K. Mathews

Dr. Mathews, also an associate professor of medicine at the University of Minnesota, Minneapolis, sat down with the Hospitalist to discuss the role of the course director in formulating the HM20 agenda, as well as highlighting some exciting educational sessions, workshops, and other events during the annual conference.

In your role as course director for HM20, did you have a particular theme you wanted to emphasize?

We did not go with a single theme, because we’re trying to provide a comprehensive educational and networking opportunity, so trying to focus the conference on a single theme a year in advance did not seem very prudent. There are multiple themes, from health disparities to technology to education. For a field like hospital medicine that’s rapidly evolving, we thought it best to keep it open and instead further develop the conference tracks: What new tracks can be created, what older tracks can be maintained because they have been highly successful, and which tracks do we retire?

Can you discuss some of the tracks at HM20?

The new track we have this year is the Technology track. That track will examine current and future technology that will impact care delivery, including telehealth, wearables, apps for digital learning, and for clinicians at the bedside. Innovation is at the core of hospital medicine, and we’re constantly exploring how to deliver efficient, timely, and effective care. “Future-casting” is important, and this track speaks to that.

There are some old standards that I would also recommend. The “Great Debate” is one of the hardest to finalize, because while you can create a great session topic and title, we need to find two talented speakers for a debate, as that is very different than a presentation. The speakers take opposing sides on clinical decisions, the latest literature reviews, best practices, and the audience gets to vote. Topics we’re using this year include “Procalcitonin: Friend or Foe,” “Guidelines Controversies in Inpatient Care,” and “POCUS vs. Physical Exam – Tech vs. Tradition.” Some of the debaters include Carrie Herzke, MD, of Johns Hopkins University, Baltimore; Daniel Dressler, MD, of Emory University, Atlanta; Jordan Messler, MD, of Morton Plant Hospital in Clearwater, Fla.; and Michelle Guidry, MD, of the Southeast Louisiana Veterans Health Care System and Tulane University, both in New Orleans; Ria Dancel, MD, from the University of North Carolina, and Michael Janjigian, MD, from NYU Langone Health.

One of the highlights this year is that we’re trying to bring more gender equity into our speaker lineup. Rarely will we have only two male speakers at a session, and I don’t think we have any all-male panels, jokingly called “manels” in the past.

 

 

Are there some “tried-and-true” tracks or sessions that are returning in HM20?

I’d like to highlight the Clinical Mastery track. That was a new track last year, and has returned this year. That track is focused on helping hospitalists become expert diagnosticians at the bedside. “Pitfalls, Myths and Pearls in Diagnostic Reasoning” is one session to note in that track, with Dr. Gopi Astik, Dr. Andrew Olson, and Dr. Reza Manesh. Another special focus this year within Clinical Mastery will be on using the rational clinical exam to augment your diagnostic skills.

When programming the annual conference, how do you balance the needs of community hospitalists with academic hospitalists?

The value we have on the annual conference committee is that there are a fair number of community hospitalists, advance practice clinicians, representation from med-peds, and family practice, for instance. Generally, there is a wide sampling of the decision makers from across the specialty helping to program the conference – we have great academic institutions, but we have representation from the larger impressive community as well. That said, it is hard to curate content that is solely for a specific subset of hospitalists without marginalizing other subsets. We don’t want to isolate people. A lot of our Rapid Fire topics are geared toward frontline hospitalists. This is content that will directly impact hospitalists as they care for patients. And some of the content that we’re bringing in this year with more emphasis are in health equity and disparities. Academic groups study this, however frontline clinicians from both academic and community settings deal with this every day, relating to both patients and staff. For example, in regard to patients, we have content focused on caring for the LGBTQ community, sessions on refugee health, as well as hospitalists and global health. We have an emphasis on diversity and inclusion in the workplace, with speakers from both community and academic settings. There will be good sessions with gender equity themes, practical tips in promotion and hiring practices. There are a couple workshops on gender equity; one to note is “Top 10 Ways for Men + Women to Engage in Gender Equity.”

Can you speak to the content that is targeted at nurse practitioners and physician assistants?

This is near and dear to my heart as I’m from an institution that has a positive history of strong partnerships with our advance practice clinician colleagues. Our goal this year was to continue to highlight nurse practitioners and physician assistants in a track dedicated to them. We have a core session called “Training Day: How to Onboard and Operationalize an Advanced Practice Provider Workforce” – this is a “bread-and-butter” session presented by speakers who have built programs from the ground up. Other important sessions address how to advance the careers of NPs and PAs – “Professional Development for NP/PAs” – and on mentorship, which emphasizes a culture of partnership on projects like providing high quality, safe care.

Are there any workshops that attendees should take note of?

One I would like to highlight is “Survive! The POCUS Apocalypse Adventure.” This highly anticipated offering is preregistration required, hosted for the first time on day 1 of the main conference. The workshop will introduce the gamification of POCUS to hospitalists. Each participant will be expected to perform ultrasound examinations and interpret their findings in order to gather clues that will lead to the cure for a zombie apocalypse! There are a lot of innovations this year in programming the Annual Conference, and gamification might be considered risky but I think it has a very good chance of success with entertainment and learning combined into one amazing workshop.

What are some other innovations that the annual conference committee has planned for 2020?

Another exciting innovation is what we call “Breakfast with an Expert.” This is a new rapid-fire didactic session format where we have three experts speak on different hot topics, such as “Nutritional Counseling” (led by Kate Shafto, MD), “Things I Wish I Knew Earlier in my Career” (Brad Sharpe, MD), and “Case-Based Controversies in Ethics” (Hannah Lipman, MD). These take place on the very first day of the conference, before the opening general session. Attendees can grab their breakfast and listen to any of these sessions before they head into the plenary. Hospitalists have asked for more content, so we’re adding these as a response to that hunger for more educational content. This format is supposed to be a bit cozier, with more Q&A.

Another aspect of HM20 to highlight is the Simulation Center. The Sim Center is a space that hosts a variety of hospital medicine skill development areas. This is an interactive center where attendees can learn to perform bedside procedures and learn hands-on skills with diagnostic point-of-care ultrasound during the first 2 days of the conference. The Sim Center is slightly different than the precourses, in that we are offering 1-hour blocks of small-group instruction for which attendees preregister. This aligns with larger SHM efforts to encourage hospitalists to be more confident with bedside procedures, and engage with SHM’s ultrasound offerings, including the certificate of completion program.

To register for the 2020 Annual Conference, including precourses, visit https://shmannualconference.org/register/.

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Dulaglutide OK for primary, secondary CV risk reduction in U.S.

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The US Food and Drug Administration (FDA) has additionally approved dulaglutide (Trulicity) for reducing the risk of major adverse cardiovascular events (MACE) in adults with type 2 diabetes with and without established cardiovascular disease (CVD) or multiple CV risk factors, the company has announced.

Dulaglutide is a once-weekly injectable glucagonlike peptide-1 (GLP-1) receptor agonist first approved in the United States in 2014 for the treatment of type 2 diabetes.

It is now the first and only type 2 diabetes medicine approved to reduce the risk of CV events for both primary and secondary prevention populations. The European Medicines Agency approved a similar indication for dulaglutide last fall.

The new US indication is based on results of the CV outcomes trial for dulaglutide, known as REWIND, which was the longest-running CV outcomes trial in the GLP-1 agonist class.

Chair of the REWIND study, Hertzel Gerstein, MD, professor of medicine at McMaster University and Hamilton Health Sciences, Ontario, Canada, said in a Lilly statement that the trial included a “broad population of people living with type 2 diabetes, reflective of those in the general population. We therefore assessed the effect of Trulicity in people with established CVD as well as those with multiple CV risk factors.”

“Globally, over 415 million people have type 2 diabetes, which is itself a CV risk factor. However, only about one third have established CVD, which is why this new indication, and the supporting evidence, is important for the millions of people in the United States living with diabetes,” he added.

Other GLP-1 agonists have been granted approvals for additional reduction of CV events in patients with type 2 diabetes, but only for secondary prevention.

Most recently the FDA expanded the indication for once-weekly semaglutide to include reducing the risk for MACE, including CV death, nonfatal myocardial infarction, or nonfatal stroke, in adults with type 2 diabetes who have established CVD.
 

Additional approval based on REWIND trial

The REWIND trial included primarily people with type 2 diabetes without established CVD. The full study results were presented at the 2019 American Diabetes Association Scientific Sessions.

REWIND showed a significant reduction in risk of MACE – a composite endpoint of nonfatal myocardial infarction, nonfatal stroke, or CV death – which occurred in 12.0% of patients in the dulaglutide group, compared with 13.4% of patients in the placebo group, for a risk reduction of 0.88 (95% confidence interval, 0.79-0.99; P = .026), which was consistent across subgroups.

All three components of the MACE primary endpoint showed a reduction with dulaglutide, compared with placebo, including CV death (hazard ratio, 0.91; 95% CI, 0.78-1.06) and nonfatal MI (HR, 0.96; 95% CI, 0.79-1.16), with the strongest and only significant effect seen in nonfatal stroke (HR, 0.76; 95% CI, 0.61-0.95).

No difference was seen between groups in hospital admissions for heart failure.

Dulaglutide was also found to modestly reduce weight by around 1.5 kg (P = .0001) and systolic blood pressure by 1.7 mm Hg (P = .0001).

The safety profile of dulaglutide in REWIND was consistent with other members of the GLP-1 agonist class, with gastrointestinal events being the most common adverse event leading to discontinuation.

Sherry Martin, MD, Lilly’s vice president, medical affairs, noted in the company statement: “For the first time, health care providers can prescribe a diabetes medicine proven to significantly reduce the risk of experiencing a CV event for people with type 2 diabetes with and without established CVD.”

“Trulicity can help people achieve their A1C goals and protect them from experiencing a CV event with a once-weekly, easy-to-use treatment option,” added Martin.

This article first appeared on Medscape.com.

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The US Food and Drug Administration (FDA) has additionally approved dulaglutide (Trulicity) for reducing the risk of major adverse cardiovascular events (MACE) in adults with type 2 diabetes with and without established cardiovascular disease (CVD) or multiple CV risk factors, the company has announced.

Dulaglutide is a once-weekly injectable glucagonlike peptide-1 (GLP-1) receptor agonist first approved in the United States in 2014 for the treatment of type 2 diabetes.

It is now the first and only type 2 diabetes medicine approved to reduce the risk of CV events for both primary and secondary prevention populations. The European Medicines Agency approved a similar indication for dulaglutide last fall.

The new US indication is based on results of the CV outcomes trial for dulaglutide, known as REWIND, which was the longest-running CV outcomes trial in the GLP-1 agonist class.

Chair of the REWIND study, Hertzel Gerstein, MD, professor of medicine at McMaster University and Hamilton Health Sciences, Ontario, Canada, said in a Lilly statement that the trial included a “broad population of people living with type 2 diabetes, reflective of those in the general population. We therefore assessed the effect of Trulicity in people with established CVD as well as those with multiple CV risk factors.”

“Globally, over 415 million people have type 2 diabetes, which is itself a CV risk factor. However, only about one third have established CVD, which is why this new indication, and the supporting evidence, is important for the millions of people in the United States living with diabetes,” he added.

Other GLP-1 agonists have been granted approvals for additional reduction of CV events in patients with type 2 diabetes, but only for secondary prevention.

Most recently the FDA expanded the indication for once-weekly semaglutide to include reducing the risk for MACE, including CV death, nonfatal myocardial infarction, or nonfatal stroke, in adults with type 2 diabetes who have established CVD.
 

Additional approval based on REWIND trial

The REWIND trial included primarily people with type 2 diabetes without established CVD. The full study results were presented at the 2019 American Diabetes Association Scientific Sessions.

REWIND showed a significant reduction in risk of MACE – a composite endpoint of nonfatal myocardial infarction, nonfatal stroke, or CV death – which occurred in 12.0% of patients in the dulaglutide group, compared with 13.4% of patients in the placebo group, for a risk reduction of 0.88 (95% confidence interval, 0.79-0.99; P = .026), which was consistent across subgroups.

All three components of the MACE primary endpoint showed a reduction with dulaglutide, compared with placebo, including CV death (hazard ratio, 0.91; 95% CI, 0.78-1.06) and nonfatal MI (HR, 0.96; 95% CI, 0.79-1.16), with the strongest and only significant effect seen in nonfatal stroke (HR, 0.76; 95% CI, 0.61-0.95).

No difference was seen between groups in hospital admissions for heart failure.

Dulaglutide was also found to modestly reduce weight by around 1.5 kg (P = .0001) and systolic blood pressure by 1.7 mm Hg (P = .0001).

The safety profile of dulaglutide in REWIND was consistent with other members of the GLP-1 agonist class, with gastrointestinal events being the most common adverse event leading to discontinuation.

Sherry Martin, MD, Lilly’s vice president, medical affairs, noted in the company statement: “For the first time, health care providers can prescribe a diabetes medicine proven to significantly reduce the risk of experiencing a CV event for people with type 2 diabetes with and without established CVD.”

“Trulicity can help people achieve their A1C goals and protect them from experiencing a CV event with a once-weekly, easy-to-use treatment option,” added Martin.

This article first appeared on Medscape.com.

The US Food and Drug Administration (FDA) has additionally approved dulaglutide (Trulicity) for reducing the risk of major adverse cardiovascular events (MACE) in adults with type 2 diabetes with and without established cardiovascular disease (CVD) or multiple CV risk factors, the company has announced.

Dulaglutide is a once-weekly injectable glucagonlike peptide-1 (GLP-1) receptor agonist first approved in the United States in 2014 for the treatment of type 2 diabetes.

It is now the first and only type 2 diabetes medicine approved to reduce the risk of CV events for both primary and secondary prevention populations. The European Medicines Agency approved a similar indication for dulaglutide last fall.

The new US indication is based on results of the CV outcomes trial for dulaglutide, known as REWIND, which was the longest-running CV outcomes trial in the GLP-1 agonist class.

Chair of the REWIND study, Hertzel Gerstein, MD, professor of medicine at McMaster University and Hamilton Health Sciences, Ontario, Canada, said in a Lilly statement that the trial included a “broad population of people living with type 2 diabetes, reflective of those in the general population. We therefore assessed the effect of Trulicity in people with established CVD as well as those with multiple CV risk factors.”

“Globally, over 415 million people have type 2 diabetes, which is itself a CV risk factor. However, only about one third have established CVD, which is why this new indication, and the supporting evidence, is important for the millions of people in the United States living with diabetes,” he added.

Other GLP-1 agonists have been granted approvals for additional reduction of CV events in patients with type 2 diabetes, but only for secondary prevention.

Most recently the FDA expanded the indication for once-weekly semaglutide to include reducing the risk for MACE, including CV death, nonfatal myocardial infarction, or nonfatal stroke, in adults with type 2 diabetes who have established CVD.
 

Additional approval based on REWIND trial

The REWIND trial included primarily people with type 2 diabetes without established CVD. The full study results were presented at the 2019 American Diabetes Association Scientific Sessions.

REWIND showed a significant reduction in risk of MACE – a composite endpoint of nonfatal myocardial infarction, nonfatal stroke, or CV death – which occurred in 12.0% of patients in the dulaglutide group, compared with 13.4% of patients in the placebo group, for a risk reduction of 0.88 (95% confidence interval, 0.79-0.99; P = .026), which was consistent across subgroups.

All three components of the MACE primary endpoint showed a reduction with dulaglutide, compared with placebo, including CV death (hazard ratio, 0.91; 95% CI, 0.78-1.06) and nonfatal MI (HR, 0.96; 95% CI, 0.79-1.16), with the strongest and only significant effect seen in nonfatal stroke (HR, 0.76; 95% CI, 0.61-0.95).

No difference was seen between groups in hospital admissions for heart failure.

Dulaglutide was also found to modestly reduce weight by around 1.5 kg (P = .0001) and systolic blood pressure by 1.7 mm Hg (P = .0001).

The safety profile of dulaglutide in REWIND was consistent with other members of the GLP-1 agonist class, with gastrointestinal events being the most common adverse event leading to discontinuation.

Sherry Martin, MD, Lilly’s vice president, medical affairs, noted in the company statement: “For the first time, health care providers can prescribe a diabetes medicine proven to significantly reduce the risk of experiencing a CV event for people with type 2 diabetes with and without established CVD.”

“Trulicity can help people achieve their A1C goals and protect them from experiencing a CV event with a once-weekly, easy-to-use treatment option,” added Martin.

This article first appeared on Medscape.com.

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Supreme Court roundup: Latest health care decisions

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The Trump administration can move forward with expanding a rule that makes it more difficult for immigrants to remain in the United States if they receive health care assistance, the U.S. Supreme Court ruled in a 5-4 vote.

Courtesy Fred Schilling, Collection of the Supreme Court of the United States
U.S. Supreme Court justices.

The Feb. 21 order allows the administration to broaden the so-called “public charge rule” while legal challenges against the expanded regulation continue in the lower courts. The Supreme Court’s decision, which lifts a preliminary injunction against the expansion, applies to enforcement only in Illinois, where a district court blocked the revised rule from moving forward in October 2019. The Supreme Court’s measure follows another 5-4 order in January, in which justices lifted a nationwide injunction against the revised rule.

Under the long-standing public charge rule, immigration officials can refuse to admit immigrants into the United States or can deny them permanent legal status if they are deemed likely to become a public charge. Previously, immigration officers considered cash aid, such as Temporary Assistance for Needy Families or long-term institutionalized care, as potential public charge reasons for denial.

The revised regulation allows officials to consider previously excluded programs in their determination, including nonemergency Medicaid, the Supplemental Nutrition Assistance Program, and several housing programs. Use of these programs for more than 12 months in the aggregate during a 36-month period may result in a “public charge” designation and lead to green card denial.

Eight legal challenges were immediately filed against the rule changes, including a complaint issued by 14 states. At least five trial courts have since blocked the measure, while appeals courts have lifted some of the injunctions and upheld enforcement.

In its Jan. 27 order lifting the nationwide injunction, Associate Justice Neil M. Gorsuch wrote that nationwide injunctions are being overused by trial courts with negative consequences.

“The real problem here is the increasingly common practice of trial courts ordering relief that transcends the cases before them. Whether framed as injunctions of ‘nationwide,’ ‘universal,’ or ‘cosmic’ scope, these orders share the same basic flaw – they direct how the defendant must act toward persons who are not parties to the case,” he wrote. “It has become increasingly apparent that this court must, at some point, confront these important objections to this increasingly widespread practice. As the brief and furious history of the regulation before us illustrates, the routine issuance of universal injunctions is patently unworkable, sowing chaos for litigants, the government, courts, and all those affected by these conflicting decisions.”

In the court’s Feb. 21 order lifting the injunction in Illinois, justices gave no explanation for overturning the lower court’s injunction. However, Associate Justice Sonia Sotomayor issued a sharply-worded dissent, criticizing her fellow justices for allowing the rule to proceed.

“In sum, the government’s only claimed hardship is that it must enforce an existing interpretation of an immigration rule in one state – just as it has done for the past 20 years – while an updated version of the rule takes effect in the remaining 49,” she wrote. “The government has not quantified or explained any burdens that would arise from this state of the world.”

 

 

ACA cases still in limbo

Meanwhile, the Supreme Court still has not decided whether it will hear Texas v. United States, a case that could effectively dismantle the Affordable Care Act.

The high court was expected to announce whether it would take the high-profile case at a private Feb. 21 conference, but the justices have released no update. The case was relisted for consideration at the court’s Feb. 28 conference.

Texas v. United States stems from a lawsuit by 20 Republican state attorneys general and governors that was filed after Congress zeroed out the ACA’s individual mandate penalty in 2017. The plaintiffs contend the now-valueless mandate is no longer constitutional and thus, the entire ACA should be struck down. Because the Trump administration declined to defend the law, a coalition of Democratic attorneys general and governors intervened in the case as defendants.

In 2018, a Texas district court ruled in favor of the plaintiffs and declared the entire health care law invalid. The 5th U.S. Circuit Court of Appeals partially affirmed the district court’s decision, ruling that the mandate was unconstitutional, but sending the case back to the lower court for more analysis on severability. The Democratic attorneys general and governors appealed the decision to the U.S. Supreme Court.

If the Supreme Court agrees to hear the challenge, the court could fast-track the case and schedule arguments for the current term or wait until its next term, which starts in October 2020. If justices decline to hear the case, the challenge will remain with the district court for more analysis about the law’s severability.

Another ACA-related case – Maine Community Health Options v. U.S. – also remains in limbo. Justices heard the case, which was consolidated with two similar challenges, on Dec. 10, 2019, but still have not issued a decision.

The consolidated challenges center on whether the federal government owes insurers billions based on an Affordable Care Act provision intended to help health plans mitigate risk under the law. The ACA’s risk corridor program required the U.S. Department of Health & Human Services to collect funds from profitable insurers that offered qualified health plans under the exchanges and distribute the funds to insurers with excessive losses. Collections from profitable insurers under the program fell short in 2014, 2015, and 2016, while losses steadily grew, resulting in the HHS paying about 12 cents on the dollar in payments to insurers. More than 150 insurers now allege they were shortchanged and they want the Supreme Court to force the government to reimburse them to the tune of $12 billion.

The Department of Justice counters that the government is not required to pay the insurers because of appropriations measures passed by Congress in 2014 and in later years that limited the funding available to compensate insurers for their losses.

The federal government and insurers have each experienced wins and losses at the lower court level. Most recently, the U.S. Court of Appeals for the Federal Circuit decided in favor of the government, ruling that while the ACA required the government to compensate the insurers for their losses, the appropriations measures repealed or suspended that requirement.

A Supreme Court decision in the case could come as soon as Feb. 26.

 

 

Court to hear women’s health cases

Two closely watched reproductive health cases will go before the court this spring.

On March 4, justices will hear oral arguments in June Medical Services v. Russo, regarding the constitutionality of a Louisiana law that requires physicians performing abortions to have admitting privileges at a nearby hospital. Doctors who perform abortions without admitting privileges at a hospital within 30 miles face fines and imprisonment, according to the state law, originally passed in 2014. Clinics that employ such doctors can also have their licenses revoked.

June Medical Services LLC, a women’s health clinic, sued over the law. A district court ruled in favor of the plaintiff, but the 5th U.S. Circuit Court of Appeals reversed and upheld Louisiana’s law. The clinic appealed to the U.S. Supreme Court. Louisiana officials argue the challenge should be dismissed, and the law allowed to proceed, because the plaintiffs lack standing.

The Supreme Court in 2016 heard a similar case – Whole Woman’s Health v. Hellerstedt – concerning a comparable law in Texas. In that case, justices struck down the measure as unconstitutional.

And on April 29, justices will hear arguments in Little Sisters of the Poor v. Pennsylvania, a consolidated case about whether the Trump administration acted properly when it expanded exemptions under the Affordable Care Act’s contraceptive mandate. Entities that object to providing contraception on the basis of religious beliefs can opt out of complying with the mandate, according to the 2018 regulations. Additionally, nonprofit organizations and small businesses that have nonreligious moral convictions against the mandate can skip compliance. A number of states and entities sued over the new rules.

A federal appeals court temporarily barred the regulations from moving forward, ruling the plaintiffs were likely to succeed in proving the Trump administration did not follow appropriate procedures when it promulgated the new rules and that the regulations were not authorized under the ACA.

Justices will decide whether the parties have standing in the case, whether the Trump administration followed correct rule-making procedures, and if the regulations can stand.

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The Trump administration can move forward with expanding a rule that makes it more difficult for immigrants to remain in the United States if they receive health care assistance, the U.S. Supreme Court ruled in a 5-4 vote.

Courtesy Fred Schilling, Collection of the Supreme Court of the United States
U.S. Supreme Court justices.

The Feb. 21 order allows the administration to broaden the so-called “public charge rule” while legal challenges against the expanded regulation continue in the lower courts. The Supreme Court’s decision, which lifts a preliminary injunction against the expansion, applies to enforcement only in Illinois, where a district court blocked the revised rule from moving forward in October 2019. The Supreme Court’s measure follows another 5-4 order in January, in which justices lifted a nationwide injunction against the revised rule.

Under the long-standing public charge rule, immigration officials can refuse to admit immigrants into the United States or can deny them permanent legal status if they are deemed likely to become a public charge. Previously, immigration officers considered cash aid, such as Temporary Assistance for Needy Families or long-term institutionalized care, as potential public charge reasons for denial.

The revised regulation allows officials to consider previously excluded programs in their determination, including nonemergency Medicaid, the Supplemental Nutrition Assistance Program, and several housing programs. Use of these programs for more than 12 months in the aggregate during a 36-month period may result in a “public charge” designation and lead to green card denial.

Eight legal challenges were immediately filed against the rule changes, including a complaint issued by 14 states. At least five trial courts have since blocked the measure, while appeals courts have lifted some of the injunctions and upheld enforcement.

In its Jan. 27 order lifting the nationwide injunction, Associate Justice Neil M. Gorsuch wrote that nationwide injunctions are being overused by trial courts with negative consequences.

“The real problem here is the increasingly common practice of trial courts ordering relief that transcends the cases before them. Whether framed as injunctions of ‘nationwide,’ ‘universal,’ or ‘cosmic’ scope, these orders share the same basic flaw – they direct how the defendant must act toward persons who are not parties to the case,” he wrote. “It has become increasingly apparent that this court must, at some point, confront these important objections to this increasingly widespread practice. As the brief and furious history of the regulation before us illustrates, the routine issuance of universal injunctions is patently unworkable, sowing chaos for litigants, the government, courts, and all those affected by these conflicting decisions.”

In the court’s Feb. 21 order lifting the injunction in Illinois, justices gave no explanation for overturning the lower court’s injunction. However, Associate Justice Sonia Sotomayor issued a sharply-worded dissent, criticizing her fellow justices for allowing the rule to proceed.

“In sum, the government’s only claimed hardship is that it must enforce an existing interpretation of an immigration rule in one state – just as it has done for the past 20 years – while an updated version of the rule takes effect in the remaining 49,” she wrote. “The government has not quantified or explained any burdens that would arise from this state of the world.”

 

 

ACA cases still in limbo

Meanwhile, the Supreme Court still has not decided whether it will hear Texas v. United States, a case that could effectively dismantle the Affordable Care Act.

The high court was expected to announce whether it would take the high-profile case at a private Feb. 21 conference, but the justices have released no update. The case was relisted for consideration at the court’s Feb. 28 conference.

Texas v. United States stems from a lawsuit by 20 Republican state attorneys general and governors that was filed after Congress zeroed out the ACA’s individual mandate penalty in 2017. The plaintiffs contend the now-valueless mandate is no longer constitutional and thus, the entire ACA should be struck down. Because the Trump administration declined to defend the law, a coalition of Democratic attorneys general and governors intervened in the case as defendants.

In 2018, a Texas district court ruled in favor of the plaintiffs and declared the entire health care law invalid. The 5th U.S. Circuit Court of Appeals partially affirmed the district court’s decision, ruling that the mandate was unconstitutional, but sending the case back to the lower court for more analysis on severability. The Democratic attorneys general and governors appealed the decision to the U.S. Supreme Court.

If the Supreme Court agrees to hear the challenge, the court could fast-track the case and schedule arguments for the current term or wait until its next term, which starts in October 2020. If justices decline to hear the case, the challenge will remain with the district court for more analysis about the law’s severability.

Another ACA-related case – Maine Community Health Options v. U.S. – also remains in limbo. Justices heard the case, which was consolidated with two similar challenges, on Dec. 10, 2019, but still have not issued a decision.

The consolidated challenges center on whether the federal government owes insurers billions based on an Affordable Care Act provision intended to help health plans mitigate risk under the law. The ACA’s risk corridor program required the U.S. Department of Health & Human Services to collect funds from profitable insurers that offered qualified health plans under the exchanges and distribute the funds to insurers with excessive losses. Collections from profitable insurers under the program fell short in 2014, 2015, and 2016, while losses steadily grew, resulting in the HHS paying about 12 cents on the dollar in payments to insurers. More than 150 insurers now allege they were shortchanged and they want the Supreme Court to force the government to reimburse them to the tune of $12 billion.

The Department of Justice counters that the government is not required to pay the insurers because of appropriations measures passed by Congress in 2014 and in later years that limited the funding available to compensate insurers for their losses.

The federal government and insurers have each experienced wins and losses at the lower court level. Most recently, the U.S. Court of Appeals for the Federal Circuit decided in favor of the government, ruling that while the ACA required the government to compensate the insurers for their losses, the appropriations measures repealed or suspended that requirement.

A Supreme Court decision in the case could come as soon as Feb. 26.

 

 

Court to hear women’s health cases

Two closely watched reproductive health cases will go before the court this spring.

On March 4, justices will hear oral arguments in June Medical Services v. Russo, regarding the constitutionality of a Louisiana law that requires physicians performing abortions to have admitting privileges at a nearby hospital. Doctors who perform abortions without admitting privileges at a hospital within 30 miles face fines and imprisonment, according to the state law, originally passed in 2014. Clinics that employ such doctors can also have their licenses revoked.

June Medical Services LLC, a women’s health clinic, sued over the law. A district court ruled in favor of the plaintiff, but the 5th U.S. Circuit Court of Appeals reversed and upheld Louisiana’s law. The clinic appealed to the U.S. Supreme Court. Louisiana officials argue the challenge should be dismissed, and the law allowed to proceed, because the plaintiffs lack standing.

The Supreme Court in 2016 heard a similar case – Whole Woman’s Health v. Hellerstedt – concerning a comparable law in Texas. In that case, justices struck down the measure as unconstitutional.

And on April 29, justices will hear arguments in Little Sisters of the Poor v. Pennsylvania, a consolidated case about whether the Trump administration acted properly when it expanded exemptions under the Affordable Care Act’s contraceptive mandate. Entities that object to providing contraception on the basis of religious beliefs can opt out of complying with the mandate, according to the 2018 regulations. Additionally, nonprofit organizations and small businesses that have nonreligious moral convictions against the mandate can skip compliance. A number of states and entities sued over the new rules.

A federal appeals court temporarily barred the regulations from moving forward, ruling the plaintiffs were likely to succeed in proving the Trump administration did not follow appropriate procedures when it promulgated the new rules and that the regulations were not authorized under the ACA.

Justices will decide whether the parties have standing in the case, whether the Trump administration followed correct rule-making procedures, and if the regulations can stand.

The Trump administration can move forward with expanding a rule that makes it more difficult for immigrants to remain in the United States if they receive health care assistance, the U.S. Supreme Court ruled in a 5-4 vote.

Courtesy Fred Schilling, Collection of the Supreme Court of the United States
U.S. Supreme Court justices.

The Feb. 21 order allows the administration to broaden the so-called “public charge rule” while legal challenges against the expanded regulation continue in the lower courts. The Supreme Court’s decision, which lifts a preliminary injunction against the expansion, applies to enforcement only in Illinois, where a district court blocked the revised rule from moving forward in October 2019. The Supreme Court’s measure follows another 5-4 order in January, in which justices lifted a nationwide injunction against the revised rule.

Under the long-standing public charge rule, immigration officials can refuse to admit immigrants into the United States or can deny them permanent legal status if they are deemed likely to become a public charge. Previously, immigration officers considered cash aid, such as Temporary Assistance for Needy Families or long-term institutionalized care, as potential public charge reasons for denial.

The revised regulation allows officials to consider previously excluded programs in their determination, including nonemergency Medicaid, the Supplemental Nutrition Assistance Program, and several housing programs. Use of these programs for more than 12 months in the aggregate during a 36-month period may result in a “public charge” designation and lead to green card denial.

Eight legal challenges were immediately filed against the rule changes, including a complaint issued by 14 states. At least five trial courts have since blocked the measure, while appeals courts have lifted some of the injunctions and upheld enforcement.

In its Jan. 27 order lifting the nationwide injunction, Associate Justice Neil M. Gorsuch wrote that nationwide injunctions are being overused by trial courts with negative consequences.

“The real problem here is the increasingly common practice of trial courts ordering relief that transcends the cases before them. Whether framed as injunctions of ‘nationwide,’ ‘universal,’ or ‘cosmic’ scope, these orders share the same basic flaw – they direct how the defendant must act toward persons who are not parties to the case,” he wrote. “It has become increasingly apparent that this court must, at some point, confront these important objections to this increasingly widespread practice. As the brief and furious history of the regulation before us illustrates, the routine issuance of universal injunctions is patently unworkable, sowing chaos for litigants, the government, courts, and all those affected by these conflicting decisions.”

In the court’s Feb. 21 order lifting the injunction in Illinois, justices gave no explanation for overturning the lower court’s injunction. However, Associate Justice Sonia Sotomayor issued a sharply-worded dissent, criticizing her fellow justices for allowing the rule to proceed.

“In sum, the government’s only claimed hardship is that it must enforce an existing interpretation of an immigration rule in one state – just as it has done for the past 20 years – while an updated version of the rule takes effect in the remaining 49,” she wrote. “The government has not quantified or explained any burdens that would arise from this state of the world.”

 

 

ACA cases still in limbo

Meanwhile, the Supreme Court still has not decided whether it will hear Texas v. United States, a case that could effectively dismantle the Affordable Care Act.

The high court was expected to announce whether it would take the high-profile case at a private Feb. 21 conference, but the justices have released no update. The case was relisted for consideration at the court’s Feb. 28 conference.

Texas v. United States stems from a lawsuit by 20 Republican state attorneys general and governors that was filed after Congress zeroed out the ACA’s individual mandate penalty in 2017. The plaintiffs contend the now-valueless mandate is no longer constitutional and thus, the entire ACA should be struck down. Because the Trump administration declined to defend the law, a coalition of Democratic attorneys general and governors intervened in the case as defendants.

In 2018, a Texas district court ruled in favor of the plaintiffs and declared the entire health care law invalid. The 5th U.S. Circuit Court of Appeals partially affirmed the district court’s decision, ruling that the mandate was unconstitutional, but sending the case back to the lower court for more analysis on severability. The Democratic attorneys general and governors appealed the decision to the U.S. Supreme Court.

If the Supreme Court agrees to hear the challenge, the court could fast-track the case and schedule arguments for the current term or wait until its next term, which starts in October 2020. If justices decline to hear the case, the challenge will remain with the district court for more analysis about the law’s severability.

Another ACA-related case – Maine Community Health Options v. U.S. – also remains in limbo. Justices heard the case, which was consolidated with two similar challenges, on Dec. 10, 2019, but still have not issued a decision.

The consolidated challenges center on whether the federal government owes insurers billions based on an Affordable Care Act provision intended to help health plans mitigate risk under the law. The ACA’s risk corridor program required the U.S. Department of Health & Human Services to collect funds from profitable insurers that offered qualified health plans under the exchanges and distribute the funds to insurers with excessive losses. Collections from profitable insurers under the program fell short in 2014, 2015, and 2016, while losses steadily grew, resulting in the HHS paying about 12 cents on the dollar in payments to insurers. More than 150 insurers now allege they were shortchanged and they want the Supreme Court to force the government to reimburse them to the tune of $12 billion.

The Department of Justice counters that the government is not required to pay the insurers because of appropriations measures passed by Congress in 2014 and in later years that limited the funding available to compensate insurers for their losses.

The federal government and insurers have each experienced wins and losses at the lower court level. Most recently, the U.S. Court of Appeals for the Federal Circuit decided in favor of the government, ruling that while the ACA required the government to compensate the insurers for their losses, the appropriations measures repealed or suspended that requirement.

A Supreme Court decision in the case could come as soon as Feb. 26.

 

 

Court to hear women’s health cases

Two closely watched reproductive health cases will go before the court this spring.

On March 4, justices will hear oral arguments in June Medical Services v. Russo, regarding the constitutionality of a Louisiana law that requires physicians performing abortions to have admitting privileges at a nearby hospital. Doctors who perform abortions without admitting privileges at a hospital within 30 miles face fines and imprisonment, according to the state law, originally passed in 2014. Clinics that employ such doctors can also have their licenses revoked.

June Medical Services LLC, a women’s health clinic, sued over the law. A district court ruled in favor of the plaintiff, but the 5th U.S. Circuit Court of Appeals reversed and upheld Louisiana’s law. The clinic appealed to the U.S. Supreme Court. Louisiana officials argue the challenge should be dismissed, and the law allowed to proceed, because the plaintiffs lack standing.

The Supreme Court in 2016 heard a similar case – Whole Woman’s Health v. Hellerstedt – concerning a comparable law in Texas. In that case, justices struck down the measure as unconstitutional.

And on April 29, justices will hear arguments in Little Sisters of the Poor v. Pennsylvania, a consolidated case about whether the Trump administration acted properly when it expanded exemptions under the Affordable Care Act’s contraceptive mandate. Entities that object to providing contraception on the basis of religious beliefs can opt out of complying with the mandate, according to the 2018 regulations. Additionally, nonprofit organizations and small businesses that have nonreligious moral convictions against the mandate can skip compliance. A number of states and entities sued over the new rules.

A federal appeals court temporarily barred the regulations from moving forward, ruling the plaintiffs were likely to succeed in proving the Trump administration did not follow appropriate procedures when it promulgated the new rules and that the regulations were not authorized under the ACA.

Justices will decide whether the parties have standing in the case, whether the Trump administration followed correct rule-making procedures, and if the regulations can stand.

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COVID-19: Time to ‘take the risk of scaring people’

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It’s past time to call the novel coronavirus, COVID-19, a pandemic and “time to push people to prepare, and guide their prep,” according to risk communication experts.

Courtesy NIAID-RML

Medical messaging about containing or stopping the spread of the virus is doing more harm than good, write Peter Sandman, PhD, and Jody Lanard, MD, both based in New York City, in a recent blog post.

“We are near-certain that the desperate-sounding last-ditch containment messaging of recent days is contributing to a massive global misperception,” they warn.

“The most crucial (and overdue) risk communication task … is to help people visualize their communities when ‘keeping it out’ – containment – is no longer relevant.”

That message is embraced by several experts who spoke to Medscape Medical News.

“I’m jealous of what [they] have written: It is so clear, so correct, and so practical,” said David Fisman, MD, MPH, professor of epidemiology at the University of Toronto, Canada. “I think WHO [World Health Organization] is shying away from the P word,” he continued, referring to the organization’s continuing decision not to call the outbreak a pandemic.

“I fully support exactly what [Sandman and Lanard] are saying,” said Michael Osterholm, PhD, MPH, professor of environmental health sciences and director of the Center for Infectious Disease Research and Policy (CIDRAP) at the University of Minnesota in Minneapolis.

Health care professionals should now be advising people how to prepare – yet this is the most neglected message, Sandman and Lanard write. “Hardly any officials are telling civil society and the general public how to get ready for this pandemic.”

Effective communication should inform people of what to expect now, they continue: “[T]he end of most quarantines, travel restrictions, contact tracing, and other measures designed to keep ‘them’ from infecting ‘us,’ and the switch to measures like canceling mass events designed to keep us from infecting each other.”

Among the new messages that should be delivered are things like:

  • Stockpiling nonperishable food and prescription meds.
  • Considering care of sick family members.
  • Cross-training work personnel so one person’s absence won’t derail an organization’s ability to function.

“We hope that governments and healthcare institutions are using this time wisely,” Sandman and Lanard continue. “We know that ordinary citizens are not being asked to do so. In most countries … ordinary citizens have not been asked to prepare. Instead, they have been led to expect that their governments will keep the virus from their doors.”

This article first appeared on Medscape.com.

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It’s past time to call the novel coronavirus, COVID-19, a pandemic and “time to push people to prepare, and guide their prep,” according to risk communication experts.

Courtesy NIAID-RML

Medical messaging about containing or stopping the spread of the virus is doing more harm than good, write Peter Sandman, PhD, and Jody Lanard, MD, both based in New York City, in a recent blog post.

“We are near-certain that the desperate-sounding last-ditch containment messaging of recent days is contributing to a massive global misperception,” they warn.

“The most crucial (and overdue) risk communication task … is to help people visualize their communities when ‘keeping it out’ – containment – is no longer relevant.”

That message is embraced by several experts who spoke to Medscape Medical News.

“I’m jealous of what [they] have written: It is so clear, so correct, and so practical,” said David Fisman, MD, MPH, professor of epidemiology at the University of Toronto, Canada. “I think WHO [World Health Organization] is shying away from the P word,” he continued, referring to the organization’s continuing decision not to call the outbreak a pandemic.

“I fully support exactly what [Sandman and Lanard] are saying,” said Michael Osterholm, PhD, MPH, professor of environmental health sciences and director of the Center for Infectious Disease Research and Policy (CIDRAP) at the University of Minnesota in Minneapolis.

Health care professionals should now be advising people how to prepare – yet this is the most neglected message, Sandman and Lanard write. “Hardly any officials are telling civil society and the general public how to get ready for this pandemic.”

Effective communication should inform people of what to expect now, they continue: “[T]he end of most quarantines, travel restrictions, contact tracing, and other measures designed to keep ‘them’ from infecting ‘us,’ and the switch to measures like canceling mass events designed to keep us from infecting each other.”

Among the new messages that should be delivered are things like:

  • Stockpiling nonperishable food and prescription meds.
  • Considering care of sick family members.
  • Cross-training work personnel so one person’s absence won’t derail an organization’s ability to function.

“We hope that governments and healthcare institutions are using this time wisely,” Sandman and Lanard continue. “We know that ordinary citizens are not being asked to do so. In most countries … ordinary citizens have not been asked to prepare. Instead, they have been led to expect that their governments will keep the virus from their doors.”

This article first appeared on Medscape.com.

It’s past time to call the novel coronavirus, COVID-19, a pandemic and “time to push people to prepare, and guide their prep,” according to risk communication experts.

Courtesy NIAID-RML

Medical messaging about containing or stopping the spread of the virus is doing more harm than good, write Peter Sandman, PhD, and Jody Lanard, MD, both based in New York City, in a recent blog post.

“We are near-certain that the desperate-sounding last-ditch containment messaging of recent days is contributing to a massive global misperception,” they warn.

“The most crucial (and overdue) risk communication task … is to help people visualize their communities when ‘keeping it out’ – containment – is no longer relevant.”

That message is embraced by several experts who spoke to Medscape Medical News.

“I’m jealous of what [they] have written: It is so clear, so correct, and so practical,” said David Fisman, MD, MPH, professor of epidemiology at the University of Toronto, Canada. “I think WHO [World Health Organization] is shying away from the P word,” he continued, referring to the organization’s continuing decision not to call the outbreak a pandemic.

“I fully support exactly what [Sandman and Lanard] are saying,” said Michael Osterholm, PhD, MPH, professor of environmental health sciences and director of the Center for Infectious Disease Research and Policy (CIDRAP) at the University of Minnesota in Minneapolis.

Health care professionals should now be advising people how to prepare – yet this is the most neglected message, Sandman and Lanard write. “Hardly any officials are telling civil society and the general public how to get ready for this pandemic.”

Effective communication should inform people of what to expect now, they continue: “[T]he end of most quarantines, travel restrictions, contact tracing, and other measures designed to keep ‘them’ from infecting ‘us,’ and the switch to measures like canceling mass events designed to keep us from infecting each other.”

Among the new messages that should be delivered are things like:

  • Stockpiling nonperishable food and prescription meds.
  • Considering care of sick family members.
  • Cross-training work personnel so one person’s absence won’t derail an organization’s ability to function.

“We hope that governments and healthcare institutions are using this time wisely,” Sandman and Lanard continue. “We know that ordinary citizens are not being asked to do so. In most countries … ordinary citizens have not been asked to prepare. Instead, they have been led to expect that their governments will keep the virus from their doors.”

This article first appeared on Medscape.com.

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FDA okays first generic of ProAir HFA

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The US Food and Drug Administration (FDA) has approved the first generic version of Teva’s ProAir HFA (albuterol sulfate inhalation aerosol).

Generic albuterol sulfate inhalation, from Perrigo Pharmaceutical, is indicated for the treatment or prevention of bronchospasm in people aged 4 years or older who have reversible obstructive airway disease, as well as for the prevention of exercise-induced bronchospasm.

“Approval of the first generic drug product for one of the most commonly used rescue inhalers in the US is part of our long-standing commitment to advance patient access to lower-cost, high-quality generic drug products that are as safe and effective as their brand name counterparts, and to expand opportunities to bring generic copies of complex drugs to the market,” FDA Commissioner Stephen Hahn, MD, said in a news release.

Metered-dose inhalers are hard to duplicate because of the complexities of their formulation or mode of delivery. “As a result, too many complex drugs lack generic competition even after patents and exclusivities no longer block generic approval,” he explained.

“Supporting development and approval of generic copies of these complex medicines so that these products can get to patients has been a major focus of our efforts to improve competition and access and to lower drug prices. Getting more generic copies of complex drugs to the market is a key priority for how we’ll help bring new savings to consumers,” Hahn added.

In the United States, more than 26 million people suffer from asthma; about 7 million of these people are children.

Perrigo said it will immediately launch a limited quantity of generic albuterol sulfate and, in collaboration with its development and manufacturing partner, Catalent Pharma Solutions, is ramping up production to meet future demand.

The company “anticipates that we will be in a position to provide a steady supply of this product by the fourth quarter of 2020,” Perrigo Executive Vice President and Rx Pharmaceuticals President Sharon Kochan said in a statement.

This article originally appeared on Medscape.com.

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The US Food and Drug Administration (FDA) has approved the first generic version of Teva’s ProAir HFA (albuterol sulfate inhalation aerosol).

Generic albuterol sulfate inhalation, from Perrigo Pharmaceutical, is indicated for the treatment or prevention of bronchospasm in people aged 4 years or older who have reversible obstructive airway disease, as well as for the prevention of exercise-induced bronchospasm.

“Approval of the first generic drug product for one of the most commonly used rescue inhalers in the US is part of our long-standing commitment to advance patient access to lower-cost, high-quality generic drug products that are as safe and effective as their brand name counterparts, and to expand opportunities to bring generic copies of complex drugs to the market,” FDA Commissioner Stephen Hahn, MD, said in a news release.

Metered-dose inhalers are hard to duplicate because of the complexities of their formulation or mode of delivery. “As a result, too many complex drugs lack generic competition even after patents and exclusivities no longer block generic approval,” he explained.

“Supporting development and approval of generic copies of these complex medicines so that these products can get to patients has been a major focus of our efforts to improve competition and access and to lower drug prices. Getting more generic copies of complex drugs to the market is a key priority for how we’ll help bring new savings to consumers,” Hahn added.

In the United States, more than 26 million people suffer from asthma; about 7 million of these people are children.

Perrigo said it will immediately launch a limited quantity of generic albuterol sulfate and, in collaboration with its development and manufacturing partner, Catalent Pharma Solutions, is ramping up production to meet future demand.

The company “anticipates that we will be in a position to provide a steady supply of this product by the fourth quarter of 2020,” Perrigo Executive Vice President and Rx Pharmaceuticals President Sharon Kochan said in a statement.

This article originally appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first generic version of Teva’s ProAir HFA (albuterol sulfate inhalation aerosol).

Generic albuterol sulfate inhalation, from Perrigo Pharmaceutical, is indicated for the treatment or prevention of bronchospasm in people aged 4 years or older who have reversible obstructive airway disease, as well as for the prevention of exercise-induced bronchospasm.

“Approval of the first generic drug product for one of the most commonly used rescue inhalers in the US is part of our long-standing commitment to advance patient access to lower-cost, high-quality generic drug products that are as safe and effective as their brand name counterparts, and to expand opportunities to bring generic copies of complex drugs to the market,” FDA Commissioner Stephen Hahn, MD, said in a news release.

Metered-dose inhalers are hard to duplicate because of the complexities of their formulation or mode of delivery. “As a result, too many complex drugs lack generic competition even after patents and exclusivities no longer block generic approval,” he explained.

“Supporting development and approval of generic copies of these complex medicines so that these products can get to patients has been a major focus of our efforts to improve competition and access and to lower drug prices. Getting more generic copies of complex drugs to the market is a key priority for how we’ll help bring new savings to consumers,” Hahn added.

In the United States, more than 26 million people suffer from asthma; about 7 million of these people are children.

Perrigo said it will immediately launch a limited quantity of generic albuterol sulfate and, in collaboration with its development and manufacturing partner, Catalent Pharma Solutions, is ramping up production to meet future demand.

The company “anticipates that we will be in a position to provide a steady supply of this product by the fourth quarter of 2020,” Perrigo Executive Vice President and Rx Pharmaceuticals President Sharon Kochan said in a statement.

This article originally appeared on Medscape.com.

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Pediatrics Board Review: Neonatal Seizures

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Pediatrics Board Review: Neonatal Seizures

Authors: Shavonne L. Massey, MD and Hannah C. Glass, MDCM, MAS

Test your knowledge of this topic HERE.

Seizures are among the most common signs of neurologic dysfunction in the neonatal period.1  Seizures in the neonate most often represent acute injury to the central nervous system, and, less commonly, are the initial presentation of an epilepsy syndrome. During childhood, the highest risk of seizure is in the first year of life, and within that first year the highest risk is in the neonatal period, which is defined as up to 28 days out of the womb or ≤ 44 weeks’ gestation for preterm neonates.2  

Seizures in neonates are associated with adverse short- and long-term outcomes, and the seizures themselves may result in additional brain injury.3–8   These adverse outcomes can lead to financial, social, and emotional costs to the patient and caregivers. As studies have linked seizure burden and outcome, it is important to quickly recognize, diagnose, and treat seizures in neonates. Because clinical identification of seizures is not reliable and seizures in neonates often do not have an apparent clinical correlate, neuromonitoring techniques should be used to accurately diagnose and manage neonatal seizures.  Table 1 lists common neonatal abbreviations and terms used in this article.

Epidemiology

Seizures are among the most common conditions encountered in the neonatal neurocritical care unit.1  The population-based incidence of seizures in neonates ranges from approximately 1 to 5 per 1000 live births in term neonates (≥ 37 weeks’ gestation), but these estimates are based largely on clinical detection of abnormal movements suspected to be seizure, and the actual incidence of electrographic seizures is not known.10  The incidence of seizures is reported to be up to 10-fold higher in preterm (< 37 weeks’ gestation) and low-birth-weight (< 2500 g at birth) neonates, with estimated incidence inversely proportionate to both gestational age and birth weight.2  The estimated incidence of seizure is 20 per 1000 live births in neonates and up to 57 per 1000 live births in low-birth-weight preterm neonates.2,11,12   Table 2 outlines potential risk factors for neonatal seizures.13,14

Etiology

The most common etiology of seizures in neonates is hypoxic-ischemic encephalopathy (HIE). Altogether the acute symptomatic causes, which also include ischemic stroke, intracranial hemorrhage, and, less commonly, infection or transient metabolic abnormalities, account for more than 75% of neonatal seizures (Table 3).15,16   Collectively, the neonatal-onset epilepsies (due to genetic epileptic encephalopathies, benign familial seizures, or brain malformations) comprise a small but important cause of neonatal seizures.16  It is important to distinguish acute symptomatic causes from neonatal-onset epilepsies, since the approach to diagnosis, management, and antiseizure medication choice will differ. Transient metabolic causes of seizures (eg, hypoglycemia, hypocalcemia, and hyponatremia) rarely cause seizure in a tertiary care setting, but must be investigated emergently as correction will often be the only treatment needed.

 

Test your knowledge of this topic: Board Review Questions

 

Hypoxic-Ischemic Encephalopathy

HIE is the most common cause of seizures in neonates.15,18,19  Neonates with HIE present with encephalopathy and indicator(s) of a perinatal event (eg, placental abruption, umbilical cord dysfunction), which may include low Apgar scores, acidotic pH, and/or need for advanced resuscitation.20  Seizure onset is typically within the first 24 hours after birth.21,22  Therapeutic hypothermia (which is standard of care for neonates ≥ 36 weeks’ gestation with moderate to severe HIE) has been shown to reduce seizures, but approximately 50% of treated neonates have electrographic seizures nonetheless.23   For this reason, continuous brain monitoring is recommended.17

 

 

Ischemic Stroke

The incidence of perinatal arterial ischemic stroke is approximately 10 to 20 per 100,000 live births.24,25  The left middle cerebral artery territory is the most common location of injury, and therefore right-sided hemiclonic seizures (especially in a well-appearing neonate) are a common initial presentation. The etiology is thought to be embolism from the placenta or umbilical cord. Maternal risk factors for arterial stroke include infertility, preeclampsia, prolonged rupture of membranes, and chorioamnionitis.25,26  Infant risk factors are congenital cardiac abnormalities (and especially need for balloon atrial septostomy), systemic and intracranial infection, thrombophilia, and male sex.26,27 Venous strokes occur most commonly in the setting of illnesses, including dehydration and sepsis.28

 

Intracranial Hemorrhage

Intracranial hemorrhage into the parenchyma or extra-axial spaces, most commonly intraventricular and subarachnoid, can cause seizures (small subdural hemorrhages are common and rarely symptomatic).  Intraventricular hemorrhage is the most common cause of seizures in preterm neonates.12,29  Parenchymal hemorrhages may be due to trauma, vascular malformation, cerebral sinovenous thrombosis, or coagulopathy, although in a large proportion, the cause is unknown.30,31

 

Central Nervous System Infections

Congenital and postnatal central nervous system infections are a rare cause of seizures in neonates. Infection can be acute or chronic and viral (eg, herpes simplex virus, parechovirus, and disseminated enterovirus) or bacterial (eg, group B streptococcus and Escherichia coli).

 

Brain Malformations

Brain malformations (eg, polymicrogyria, holoprosencephaly, schizencephaly, and lissencephaly, among others) may cause epilepsy with onset in the neonatal period. Neonates with brain malformations can also have seizures due to comorbid HIE and/or electrolyte disturbances or hypoglycemia due to pituitary dysfunction.16

 

Neonatal-Onset Genetic Epilepsy Syndromes

Neonatal-onset genetic epilepsy syndromes can be benign or malignant. KCNQ2/3 voltage-gated potassium channel mutations were recently recognized as a cause of both benign and malignant neonatal seizure syndromes.32  Benign neonatal familial epilepsy is an autosomal dominant disorder characterized by seizures that typically arise in the first days of life, are easily controlled with antiseizure medications, and resolve within the first year of life. Neonatal-onset epileptic encephalopathies due to KCNQ mutations occur sporadically. Seizure onset is within the first days of life, electroencephalography (EEG) background is abnormal (typically a burst suppression pattern), and seizures can be difficult to control.33  The seizures may resolve in infancy or childhood, but children are typically left with severe global impairments.34 Interestingly, focal tonic seizures are the predominant semiology in both the benign and malignant syndromes. Other genetic causes of early-onset epilepsy syndromes include pyridoxine-dependent epilepsy (ALDH7A1, PNPO) and benign familial infantile epilepsy (PRRT2/KCNT2). Early infantile epileptic encephalopathy (Ohtahara syndrome) and early myoclonic epilepsy have been associated with multiple genetic abnormalities including ARX, CDKL5, and STXBP1 mutations. There is increasing evidence that clinical epilepsy syndromes may be caused by multiple genetic defects, whereas different defects in the same gene may cause diverse phenotypes.

 

Other Causes

Very rare causes of seizures in neonates include inborn errors of metabolism (eg, urea cycle defects, organic acidurias, and aminoacidopathies), disorders of neurotransmitter metabolism (eg, pyridoxine-dependent epilepsy, nonketotic hyperglycinemia), disorders of energy metabolism (eg, mitochondrial disorders, GLUT1 glucose transporter deficiency, molybdenum cofactor deficiency, and isolated sulfite oxidase deficiency), and biosynthetic defects causing brain malformation or dysfunction (eg, peroxisomal biogenesis disorders). Maternal selective serotonin reuptake inhibitor (SSRI) and serotonin–norepinephrine reuptake inhibitor (SNRI) use during pregnancy may be associated with clinical convulsions in the first hours after birth (SSRI) and electroclinical seizures (SNRI) starting in the first 3 days after birth.35,36  Convulsions without EEG correlate need not be treated with antiseizure medications.

 

Pathophysiology

Neonates are particularly susceptible to seizures. This increased susceptibility to seizures can be attributed to the risk for trauma during delivery as well as to multiple age-dependent mechanisms.37–39  Enhanced excitability is related to the paradoxical excitatory effect of gamma-aminobutyric acid (GABA) in immature neurons, developmental differences in the glutamatergic system, and delayed maturation of inhibitory systems (Table 4).

Acute symptomatic seizures may harm the developing brain. Studies using animal models show that young animals are more resistant to hippocampal necrosis as compared to adult animals who are subjected to seizures, but hyperthermia and seizures are associated with hippocampal necrosis.40  Additionally, developmental alterations in neuronal circuitry are evident even in the absence of necrosis; early seizures can lead to changes in learning and memory through mechanisms that include altered hippocampal signaling and plasticity, decreased neurogenesis, and delayed neuronal loss.41–44 In animal models, neonatal seizures are also associated with a higher risk of epilepsy later in life.45

In humans, the developmental effect of seizures is difficult to distinguish from the effect of the underlying brain injury, but there is emerging evidence that seizures may have a similar effect in humans as in animal models. Neonates with HIE and seizures have higher lactate peak on magnetic resonance spectroscopy, a finding that is independent of the severity of brain injury.46  Furthermore, children with HIE and early-life seizures also have worse developmental outcomes, and again this finding persists after adjusting for the severity of brain injury.47 Finally, early-life seizures are an important risk factor for remote seizures in children with perinatal stroke.48

 

Diagnosis

Seizure Definitions

There are 3 types of seizure in the neonate: clinical only, electroclinical, and EEG only (Table 5).

A clinical-only seizure consists of a sudden abnormal clinical change without a coinciding EEG change. On EEG, a seizure is characterized by a sudden abnormal event with a repetitive and evolving pattern that has a minimum peak-to-peak voltage of 2 μV and lasts > 10 seconds (also called an electrographic seizure, Figure 1). An electroclinical seizure consists of a clinical seizure that is simultaneously paired with an electrographic seizure. An EEG-only seizure is a clear electrographic seizure that does not have any associated outwardly visible signs. Neonatal status epilepticus is defined as the summed duration of seizures comprising more than 50% of an arbitrarily defined 1-hour epoch, and thus EEG monitoring is required to make this diagnosis.49

 

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Clinical Seizure Semiology

The diagnostic strategies used to identify neonatal seizures have evolved over time. Early studies of neonatal seizures were based solely on clinical observation. Seizures were defined as a paroxysmal alteration in neurologic function that may be temporally associated with electrocerebral changes.50 The most widely accepted scheme for clinical seizures is that proposed by Volpe, in which neonatal seizures are classified as clonic, tonic, myoclonic, or subtle.50  Seizure semiologies have varying concordance with electrophysiology studies. Interestingly, clonic seizures are most reliably associated with an electrographic seizure but are much less common than subtle seizures, which are the least likely clinical seizure type to be associated with an electrographic seizure.51 Generalized tonic–clonic seizures are generally not seen in neonates due to incomplete myelination and limited ability of the neonatal brain to generate a generalized seizure. A modern cohort study involving 647 neonates with video EEG recording examined 160 electrographic seizures in 43 neonates. Myoclonic seizures did not occur. Clonic and tonic seizures occurred in 23% and 25% of the electroclinical seizures, respectively. Subtle seizures were common, with abnormal ocular movements in 70%, orolingual movements in 56%, hypomotor movement in 28%, and autonomic changes in 56%.52 Modern definitions of seizure consider only those that have an electrographic correlate.49

 

It has become increasingly apparent that clinical observation for seizure detection is insufficient because it has the potential to both overestimate and underestimate the actual seizure burden of the neonate.9  Given the inconsistent correlation between the various described semiologies and electrographic seizures, clinical events noted at the bedside may easily be mistaken for seizure. Indeed, studies have shown poor interrater agreement regarding clinically diagnosed neonatal seizures.9,53  In addition, the bedside clinician will miss seizures that are subclinical (EEG-only) or have subtle manifestations. As a result, EEG use is the gold standard for seizure detection in neonates. The American Clinical Neurophysiology Society (ACNS) provides guidelines for standardized terminology and evaluation of EEG in neonates.49

 

Neuromonitoring Guidelines

There are 2 primary guidelines for EEG monitoring in the neonatal population. The World Health Organization’s “Guideline on Neonatal Seizures” was created by a multidisciplinary international group of experts with the intention of providing information and recommendations for widespread use of EEG monitoring.54  Strong recommendations include:

  • all clinical seizures should be confirmed by EEG where available;
  • all electrographic seizures, even without clinical symptoms, should be treated in facilities where EEG is available;
  • clinical seizures should be treated if they are prolonged (> 3 minutes) or occurring in clusters.

The ACNS published its “Guideline on Continuous Electroencephalography Monitoring in Neonates” in 2011.17 The document is a consensus statement from neurophysiology experts for standardizing and optimizing neuromonitoring strategies for neonates. To date, this is the most comprehensive guide on neonatal neuromonitoring. Per the ACNS guideline, there are 2 primary indications for EEG monitoring in neonates: (1) to evaluate for electrographic seizures and (2) to judge the severity of an encephalopathy. In terms of seizure detection, the EEG should be used to:

  • determine whether a paroxysmal, sudden, repetitive, inexplicable event is a seizure;
  • evaluate for the presence of EEG-only seizures;
  • evaluate for subclinical seizures while weaning antiseizure medications;
  • characterize burst suppression, an electrographic pattern that (a) can be seen in the setting of brain injury, certain metabolic encephalopathies, or genetic syndromes and (b) is used to guide therapeutic intervention in medically refractory epilepsy cases.

EEG is paramount in the evaluation of abnormal paroxysmal events to determine whether they have an electrographic correlate. In addition to the aforementioned difficulties with clinical diagnosis of seizures, neonates have a high rate of EEG-only seizures, with incidences ranging from 10% to 79% across various neonatal cohorts.55–57  These high rates of EEG-only seizures appear to be partially due to the phenomenon of electroclinical dissociation, or electromechanical uncoupling. In electroclinical dissociation, a clinical seizure triggers treatment with an antiseizure medication, but following treatment clinical signs of the seizure disappear while the electrographic seizure continues. Electroclinical dissociation occurs in roughly 50% of neonates.58

The second purpose of EEG monitoring in the neonate is to assess the degree of encephalopathy. The EEG serves as a measure of the neonate’s cortical health. The neurological examination during the neonatal period can be limited by both intrinsic and iatrogenic factors, and many of the activities tested in the neonate (eg, gross movements, the ability to orally feed, the ability to breathe, and the presence of primitive reflexes) are largely measures of brainstem function or spinal reflexes rather than cerebral cortical function. A neonate could potentially have a large supratentorial insult and still accomplish many of the tasks of the neonatal neurologic examination. The EEG is, therefore, an important functional measure of cerebral health in the neonate, and acts as an extension of the neonatal neurologist’s physical examination.

EEG background assessment is also predictive of both short-term outcomes (eg, risk of seizures) and long-term neurodevelopmental outcomes. Interest in using the EEG as a predictor of short- and long-term outcomes is growing, as there is increasing evidence that clinical variables can have limited predictive capability.23 A 2006 study showed that the combination of low Apgar score, low pH, and need for intubation had a positive predictive value of only 25% and negative predictive value of 77% for acute seizure.59 While these features seen immediately after birth are not predictive of seizure, the persistence of certain features, such as lactic acidosis, are more predictive of acute seizure, with longer times to normalization positively associated with higher seizure burden.9 Numerous studies, on the other hand, have shown that a normal or mildly abnormal EEG background is associated with a favorable outcome, while a low-voltage or inactive background is associated with death or significant neurodevelopmental disability.49  2016 systematic review of the predictive ability of EEG background features in neonates with HIE examined studies from 1960 to 2014. The review concluded that the appearance of burst suppression (sensitivity 0.87, specificity 0.82), low voltage (sensitivity 0.92, specificity 0.99), and a flat EEG tracing (sensitivity 0.78, specificity 0.99) were most predictive of adverse neurodevelopmental outcomes.60 Neonates with early recovery of EEG background (within 24–36 hours) may be spared adverse outcomes.61,62 A 2014 multicenter study evaluating clinical and EEG risk factors for 90 full-term neonates with HIE found that the initial EEG background predicted subsequent seizure occurrence (excessively discontinuous background with relative risk 17.5; severely abnormal background with relative risk 13) more accurately than clinical variables.23

The ACNS guideline also provides more specific details regarding how neuromonitoring should occur. Any neonate receiving an EEG should have at least 1 hour of recording to allow for a full cycle of wakefulness and sleep. At-risk neonatal populations (Table 6) should be monitored for at least 24 hours with EEG to screen for EEG-only seizures, even in the absence of clinically concerning paroxysmal movements. The vast majority of acute seizures in high-risk neonatal groups will occur in the first 24 hours, with nearly 100% occurring within 72 hours of the insult.21,57,63–66  If seizures are detected, the neonate should be monitored until there is no further evidence of seizure on EEG for at least 24 hours. If there are multiple abnormal paroxysmal events of concern, EEG monitoring should continue until all of the events in question are captured.

 

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A subsequent report from the ACNS published in 2013 details the exact features of the EEG that should be evaluated in neonates.49  The specific features that are to be assessed in each neonatal EEG include behavioral state, EEG background features, the presence or absence of normal graphoelements, the presence of EEG transient patterns, and the presence of seizures and status epilepticus (Table 5).

Neuromonitoring Modalities

There are 2 primary EEG modalities utilized in the neonatal intensive care unit (NICU): conventional EEG (cEEG) and amplitude-integrated EEG (aEEG).

Conventional EEG. Also called continuous EEG or video EEG, cEEG employs the standardized International 10-20 System of electrode placement with additional electrocardiogram (ECG), respiratory, eye (electrooculographic [EOG]), and electromyography (EMG) channels. cEEG is the gold standard for EEG monitoring in the neonate (Figure 2). It allows for coverage of the entire cerebral landscape, and use of the supplemental channels helps the electroencephalographer decipher cerebral abnormalities from artifactual changes. Additionally, while the patient’s behavioral state is often obvious in adult and pediatric EEGs, behavioral state is notoriously difficult to decipher in neonatal EEGs, given that cerebral patterns of wakefulness and sleep can have similar electrographic appearances in the neonate. The addition of the supplementary channels (ECG, respiratory, EOG, and EMG) adds context to the cerebral patterns to help the neonatal electroencephalographer interpret behavioral state.

While cEEG is the most comprehensive neuromonitoring strategy with the highest yield for accurate seizure detection, it has drawbacks. It is a costly and labor-intensive procedure, requiring trained technologists to apply and set up the EEG, and trained neurophysiologists to interpret the recorded data. This process can lead to delays in the application of the EEG, recognition of seizure on EEG, and subsequent intervention on actionable EEG changes. There have, therefore, been attempts to adapt other modalities, such as quantitative analyses and trending, for bedside use.

Amplitude-integrated EEG. The most commonly employed alternative EEG strategy in the NICU is aEEG, which is a bedside tool that uses a limited recording strategy. A reduced montage of 2 to 4 channels records electrical signal, which is then transformed based on a specific factor (such as amplitude) and displayed on a compressed timescale ranging from 2 to 24 hours (Figure 3). Leads are often placed in the bilateral central or parietal regions for maximal seizure detection, given that the centrotemporal region is the most common location for neonatal seizures.67  The aEEG is typically applied and interpreted by the bedside neonatologist or nurse. This rapid application and interpretation feasibly leads to more rapid intervention. aEEG has an established and validated role in assessment of encephalopathy, particularly in HIE.68 Given the reduced number of recording channels, aEEG is less accurate than cEEG for detecting seizures. While aEEG can accurately identify the binary presence of any seizures in a neonatal EEG record, it largely underestimates the true seizure burden.69,70 aEEG often misses seizures that are composed of slow frequencies and/or low amplitudes and are brief in duration. Seizures can also be missed depending on electrode placement in relation to the location of the seizure.71 aEEG is also subject to false positives, as artifacts can be misinterpreted as cerebral abnormalities. The aEEG lacks the video, EMG, eye, respiratory, and ECG leads that aid the electroencephalographer in deciphering between artifact and cerebral abnormality on cEEG. Lastly, confidence and comfort in aEEG interpretation is variable and often affected by experience and exposure. Survey data suggest a general lack of confidence in aEEG interpretation.72

Despite its limitations, aEEG is being increasingly used in NICUs around the world. A recent survey of U.S. neonatologists found that 55% of respondents use aEEG in their NICU, most often for neonates with hypothermia/HIE (95%) and/or suspected seizures (75%). aEEG was most commonly used to make decisions regarding seizure treatment (~80%), to make decisions regarding therapeutic hypothermia initiation (~50%), for counseling and prognosis (~50%), and to aid in making decisions regarding medication dosages and treatment duration (~35%).73  The ACNS specifically notes that cEEG is the gold standard for seizure detection in the neonate.17 However, recognizing that aEEG use is increasing, the authors comment that aEEG can be used as a supplemental neuromonitoring strategy, particularly in clinical settings where cEEG access is limited. Given the issues with aEEG diagnosis and characterization of neonatal seizures, if seizures are suspected using aEEG, they should be confirmed on cEEG.

 

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Treatment

There are no widely accepted guidelines for seizure management in neonates. Optimal treatment of seizures involves rapid identification of the underlying cause (as discussed above, seizures are most often symptomatic of an underlying brain injury, with transient metabolic and early-onset epilepsies as rarer causes). In the acute setting, seizures should be treated as a medical emergency. Reversible causes such as hypoglycemia and hypocalcemia must be immediately evaluated and treated. If infection is suspected, appropriate cultures should be drawn and treatment with antibiotics and/or antivirals initiated. Urgent evaluation of patient and family history, ancillary testing such as EEG and imaging studies, and laboratory tests are important to determine whether the seizures are due to an acute symptomatic cause or an early-onset epilepsy, as the treatment approach differs for each.

 

Treatment of Acute Symptomatic Seizures

The primary goal of acute symptomatic seizure treatment is to rapidly titrate medications to abolish EEG seizures (including seizures without clear clinical correlate) with the goal of minimizing seizure burden. Acute symptomatic seizures usually begin within 24 to 48 hours after birth (or the acute event) and resolve within 2 to 4 days.65  Since seizures persist after the first dose of medication in more than 50% of neonates, it is important to continue to monitor by EEG for recurrent seizures for at least 24 hours. There are no guidelines to direct the selection of antiseizure medication. A single trial showed that phenobarbital and phenytoin (each given as a bolus dose of 20 mg/kg) had equal efficacy.74 Phenobarbital is the most commonly used initial medication in multiple international surveys and studies.15,75–77

Levetiracetam is a safe alternative that is used widely, although randomized efficacy data are lacking.15,78,79  A large randomized controlled trial comparing phenobarbital and levetiracetam for first-line treatment of neonatal seizures was recently completed (NeoLev2). Preliminary results demonstrate a significantly higher rate of seizure cessation with phenobarbital administration, but fewer side effects with levetiracetam administration. Final results are pending publication. Midazolam infusion is a reasonable alternative or add-on agent for refractory seizures and status epilepticus.80,81

Maintenance antiseizure medications can safely be discontinued in the neonatal period.82,83 For most patients, treatment for 24 to 72 hours after resolution of the acute symptomatic seizures is safe. For neonates without confirmed electrographic seizures (and an adequate monitoring period to capture the events and/or 24 hours seizure-free), maintenance dosing with antiseizure medications may not be necessary, as the likelihood of either nonepileptic events or resolution of seizures is high.

 

Treatment of Neonatal-Onset Epilepsy

Neonatal-onset epilepsy should be considered when a child has confirmed EEG seizures and an acute symptomatic cause is not found. The approach to treating epilepsy is different from the approach to treating acute symptomatic seizures: medications can be carefully titrated to maximally tolerated doses to determine efficacy and must be continued after discharge home even if seizures are well controlled with antiseizure medications. If no acute symptomatic cause of seizures is identified, a trial of pyridoxine (100 mg intravenously [IV] while EEG is recording), folinic acid (2.5 mg IV), and pyridoxal 5’-phosphate (60 mg/kg/day divided 3 times daily for 2–3 days) is warranted while genetic testing for underlying vitamin-dependent epilepsies is pending.84  For neonates with suspected KCNQ2/3 epilepsy (either benign or malignant), carbamazepine or oxcarbazepine is indicated as the first-line agent, with retigabine as an alternate agent.85 Neonates with focal seizures due to brain malformation may also respond to carbamazepine/oxcarbazepine. Table 7 lists the most commonly used antiseizure medications in neonates.

 

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Outcomes

Both animal and human data suggest that seizures can negatively impact the developing brain. As noted in the Pathophysiology section, preclinical studies suggest that the immature brain is more susceptible to seizures, and that seizures during early life may result in the development of inappropriate cerebral electrical pathways, which can beget epileptic networks later in life.86 Clinical data have been less definitive, as the link between poor outcomes and seizure is complicated by the underlying etiology and, possibly, interventions. Typical outcome measures assessed in neonatal seizure populations are neuroimaging, neurodevelopment, and occurrence of remote epilepsy. Several studies have shown a correlation between seizure burden and worsened magnetic resonance imaging (MRI) scores, particularly in neonates with HIE.4,21,63 The sheer presence of electrographic seizures is associated with acute MRI injury, with higher seizure burden correlating with more severe MRI injury. The association between seizures and MRI injury does not appear to vary with seizure type (electroclinical versus EEG only).21 In neonates with HIE, those with seizures are more likely to have cortical or near-total brain injuries seen on MRI as compared with those without seizures.21

Neurodevelopmental measures are consistently worse in children with a history of neonatal seizures compared with healthy peers or populations with neonatal brain injury without seizure. A prospectively assembled cohort with clinically diagnosed neonatal seizures followed for a median of 10 years in Newfoundland, Canada, has provided some of the most informative longitudinal data on such patients.8 Children born at term do better than children born prematurely, but increased rates of morbidity and mortality are present in both groups. During the 10-year follow up period, 16% of term neonates and 42% of preterm neonates died. Among survivors, impairments were seen in 39% of term neonates and 46% of preterm neonates at follow up. The most common impairments were epilepsy (27%), learning disabilities (27%), cerebral palsy (25%), and intellectual disability (20%). Predictors of poor outcome included severe encephalopathy, cerebral dysgenesis, complicated intraventricular hemorrhage, infections in preterm neonates, abnormal EEG, and requiring multiple antiseizure medications.

Other studies have found that the presence of neonatal seizures is associated with development of microcephaly, cerebral palsy, and failure to thrive, particularly in subsets of children with HIE.7 In addition, studies have suggested a relationship between seizure burden and developmental outcomes, with increasing seizure burden associated with worse neurodevelopmental outcome. A study of a heterogenous group of 56 term neonates with status epilepticus found that 75% had poor outcomes, defined as a developmental quotient less than 85 at 18 months of age or later.87  In a subset of patients with HIE, the duration of status epilepticus was predictive of poor neurodevelopmental outcomes, with neonates with poor neurodevelopmental outcomes having a median of 215 minutes of seizure and those with good neurodevelopmental outcomes having a median of 85 minutes of seizure. Others have studied the impact of neonatal seizures on intelligence quotients (IQ), finding that the presence of high clinical and/or EEG seizure burden in the setting of HIE was associated with substantially lower full-scale IQ scores (96.9 in no seizure, 82.7 in mild/moderate seizures, 67.2 in severe seizures), which was maintained after adjusting for MRI severity.47 Additionally, the absence of seizures has been shown to be an independent predictor of improved 18-month outcomes, defined as lack of death or disability, in asphyxiated neonates treated with hypothermia.88

The risk of epilepsy following neonatal seizures is also increased compared to the general population. A 2015 literature review found that in 4538 children with a history of neonatal seizures, 18% developed epilepsy, with nearly 70% having onset within the first year of life.6 Of those patients who developed epilepsy, 81% had an associated neurological impairment (18% with intellectual impairment, 6% with cerebral palsy, and 45% with both cerebral palsy and intellectual impairment). Additionally, population studies of children with epilepsy have shown that a history of neonatal seizures decreases the likelihood of later seizure freedom.89

 

Conclusion

The risk of brain injury is high in the perinatal and neonatal period. Seizures, which are the most common manifestation of cerebral injury during the neonatal period, are therefore relatively common. Neonatal seizures most often represent an acute cerebral injury, but can also be the result of a developmental brain abnormality or genetic epilepsy, and herald risk of continued or recurrent seizure. Although there is a long list of potential causes of neonatal seizures, by far the most common cause of seizure in the term neonate is HIE. The only intervention for this entity, therapeutic hypothermia, leads to improved neurodevelopmental outcomes and appears to lower the seizure burden. It is important for the practitioner to be mindful of potential other causes for neonatal seizures, particularly when there is no history of a clear asphyxial event, as these other etiologies may require etiology-specific treatments and may confer different prognoses. There are several populations considered high risk for neonatal seizures, and neuromonitoring with cEEG should be strongly considered in these patients given high rates of subclinical seizures.

When they occur, neonatal seizures are frequent, typically occur within the first 48 hours following insult, are often subclinical, and most often have a centrotemporal onset. Seizures are classified as clinical only, electroclinical, and EEG only depending on the presence and relationship of paroxysmal abnormal movements with defined changes on the EEG. Although traditionally the diagnosis of seizure was made on a clinical basis, it is now well established that the clinical diagnosis of seizures will both overestimate and underestimate the true incidence of seizure. As a result, EEG is required for the diagnosis of neonatal seizures. cEEG remains the gold standard for neonatal neuromonitoring, although adapted montages such as aEEG can act as a complementary bedside tool for more rapid seizure management.

The mainstays of treatment for neonatal seizures are phenobarbital, phenytoin, and benzodiazepines. These medications are the only treatments that have been studied in a randomized fashion with published results. None of these treatments are ideal, as they are at best moderately effective, all have side effects that can be dose-limiting, and their prolonged use may be harmful. Newer-generation medications such as levetiracetam are being used with increasing frequency, although safety and efficacy data are limited. Given the relationship between neonatal seizures and neurodevelopment, mortality, and the development of epilepsy, it is important that we continue to strive to find the ideal intervention strategy for these youngest and most vulnerable members of society.

 

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References

1. Glass HC, Bonifacio SL, Peloquin S, et al. Neurocritical care for neonates. Neurocrit Care. 2010;12:421–9.

2. Ronen GM, Penney S, Andrews W. The epidemiology of clinical neonatal seizures in Newfoundland: a population-based study. J Pediatr. 1999;134:71–5.

3. Maartens IA, Wassenberg T, Buijs J, et al. Neurodevelopmental outcome in full-term newborns with refractory neonatal seizures. Acta Paediatr2012;101:e173–8.

4. Srinivasakumar P, Zempel J, Trivedi S, et al. Treating EEG seizures in hypoxic ischemic encephalopathy: a randomized controlled trial. Pediatrics2015;136:e1302–9.

5. Pavlidis E, Spagnoli C, Pelosi A, et al. Neonatal status epilepticus: differences between preterm and term newborns. Eur J Paediatr Neurol. 2015;19:314–9.

6. Pisani F, Facini C, Pavlidis E, et al. Epilepsy after neonatal seizures: literature review. Eur J Paediatr Neurol. 2015;19:6–14.

7. McBride MC, Laroia N, Guillet R. Electrographic seizures in neonates correlate with poor neurodevelopmental outcome. Neurology. 2000;55:506–13.

8. Ronen GM, Buckley D, Penney S, Streiner DL. Long-term prognosis in children with neonatal seizures: a population-based study. Neurology2007;69:1816–22.

9. Murray DM, Boylan GB, Ali I, et al. Defining the gap between electrographic seizure burden, clinical expression and staff recognition of neonatal seizures. Arch Dis Child Fetal Neonatal Ed. 2008;93:F187–91.

10. Vasudevan C, Levene M. Epidemiology and aetiology of neonatal seizures. Semin Fetal Neonatal Med. 2013;18:185–91.

11. Saliba RM, Annegers JF, Waller DK, et al. Incidence of neonatal seizures in Harris County, Texas, 1992-1994. Am J Epidemiol. 1999;150:763–9.

12. Sheth RD, Hobbs GR, Mullett M. Neonatal seizures: incidence, onset, and etiology by gestational age. J Perinatol. 1999;19:40–3.

13. Glass HC, Pham TN, Danielsen B, et al. Antenatal and intrapartum risk factors for seizures in term newborns: a population-based study, California 1998-2002. J Pediatr. 2009;154:24–28 e1.

14. Glass HC, Wu YW. Epidemiology of neonatal seizures. J Pediatr Neurol. 2009;7:13–7.

15. Glass HC, Shellhaas RA, Wusthoff CJ, et al. Contemporary profile of seizures in neonates: a prospective cohort study. J Pediatr. 2016;174:98–103.

16. Shellhaas RA, Wusthoff CJ, Tsuchida TN, et al. Profile of neonatal epilepsies: Characteristics of a prospective US cohort. Neurology. 2017;89:893–9.

17. Shellhaas RA, Chang T, Tsuchida T, et al. The American Clinical Neurophysiology Society’s Guideline on continuous electroencephalography monitoring in neonates. J Clin Neurophysiol. 2011;28:611–7.

18. Tekgul H, Gavreau K, Soul J, et al. The current etiologic profile and neurodevelopmental outcome of seizures in term newborn infants. Pediatrics2006;117:1270–80.

19. Yildiz EP, Tatli B, Ekici B, et al. Evaluation of etiologic and prognostic factors in neonatal convulsions. Pediatr Neurol. 2012;47:186–92.

20. Executive summary: Neonatal encephalopathy and neurologic outcome, second edition. Report of the American College of Obstetricians and Gynecologists’ Task Force on Neonatal Encephalopathy. Obstet Gynecol. 2014;123:896–901.

21. Glass HC, Nash KB, Bonifacio SL, et al. Seizures and magnetic resonance imaging-detected brain injury in newborns cooled for hypoxic-ischemic encephalopathy. J Pediatr. 2011;159:731–5 e1.

22. Lynch NE, Stevenson NJ, Livingstone V, et al. The temporal characteristics of seizures in neonatal hypoxic ischemic encephalopathy treated with hypothermia. Seizure. 2015;33:60–5.

23. Glass HC, Wusthoff CJ, Shellhaas RA, et al. Risk factors for EEG seizures in neonates treated with hypothermia: a multicenter cohort study. Neurology. 2014;82:1239–44.

24. Grunt S, Mazenauer L, Buerki SE, et al. Incidence and outcomes of symptomatic neonatal arterial ischemic stroke. Pediatrics. 2015;135:e1220–8.

25. Lee J, Croen LA, Backstrand KH, et al. Maternal and infant characteristics associated with perinatal arterial stroke in the infant. JAMA2005;293:723–9.

26. Harteman JC, Groenendaal F, Benders MJ, et al. Risk factors for perinatal arterial ischaemic stroke in full-term infants: a case-control study. Arch Dis Child Fetal Neonatal Ed. 2012;97:F411–6.

27. Simchen MJ, Goldstein G, Lubetsky A, et al. Factor v Leiden and antiphospholipid antibodies in either mothers or infants increase the risk for perinatal arterial ischemic stroke. Stroke. 2009;40:65–70.

28. deVeber G, Andrew M, Adams C, et al. Cerebral sinovenous thrombosis in children. N Engl J Med. 2001;345:417–23.

29. Pisani F, Barilli AL, Sisti L, et al. Preterm infants with video-EEG confirmed seizures: outcome at 30 months of age. Brain Dev. 2008;30:20–30.

30. Armstrong-Wells J, Johnston SC, Wu YW, et al. Prevalence and predictors of perinatal hemorrhagic stroke: results from the kaiser pediatric stroke study. Pediatrics. 2009;123:823–8.

31. Wu YW, Hamrick SE, Miller SP, et al. Intraventricular hemorrhage in term neonates caused by sinovenous thrombosis. Ann Neurol. 2003;54:123–6.

32. Grinton BE, Heron SE, Pelekanos JT, et al. Familial neonatal seizures in 36 families: clinical and genetic features correlate with outcome. Epilepsia2015;56:1071–80.

33. Pisano T, Numis AL, Heavin SB, et al. Early and effective treatment of KCNQ2 encephalopathy. Epilepsia. 2015;56:685–91.

34. Weckhuysen S, Mandelstam S, Suls A, et al. KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy. Ann Neurol2012;71:15–25

35. Moses-Kolko EL, Bogen D, Perel J, et al. Neonatal signs after late in utero exposure to serotonin reuptake inhibitors: literature review and

implications for clinical applications. JAMA. 2005;293:2372–83.

36. Haukland LU, Kutzsche S, Hovden IA, Stiris T. Neonatal seizures with reversible EEG changes after antenatal venlafaxine exposure. Acta

Paediatr. 2013;102:e524–6.

37. Jensen FE. Developmental factors regulating susceptibility to perinatal brain injury and seizures. Curr Opin Pediatr. 2006;18:628–33.

38. Jensen FE. Neonatal seizures: an update on mechanisms and management. Clin Perinatol. 2009;36:881–900.

39. Nardou R, Ferrari DC, Ben-Ari Y. Mechanisms and effects of seizures in the immature brain. Semin Fetal Neonatal Med. 2013;18:175–84.

40. Yager JY, Armstrong EA, Jaharus C, et al. Preventing hyperthermia decreases brain damage following neonatal hypoxic-ischemic seizures. Brain Res. 2004;1011:48–57.

41. Jiang M, Lee CL, Smith KL, Swann JW. Spine loss and other persistent alterations of hippocampal pyramidal cell dendrites in a model of early-onset

epilepsy. J Neurosci. 1998;18:8356–8.

42. McCabe BK, Silveira DC, Cilio MR, et al. Reduced neurogenesis after neonatal seizures. J Neurosci. 2001;21:2094–103.

43. Montgomery EM, Bardgett ME, Lall B, et al. Delayed neuronal loss after administration of intracerebrocentricular kainic acid to preweanling rats.

Brain Res Dev Brain Res. 1999;112:107–16.

44. Lynch M, Sayin U, Bownds J, et al. Long-term consequences of early postnatal seizures on hippocampal learning and plasticity. Eur J Neurosci.

2000;12:2252–64.

45. Holmes GL. The long-term effects of neonatal seizures. Clin Perinatol. 2009;36:901–14. 46. Miller SP, Weiss J, Barnwell A, et al. Seizure-associated brain injury in term newborns with perinatal asphyxia. Neurology. 2002;58:542–8.

47. Glass HC, Glidden D, Jeremy RJ, et al. Clinical neonatal seizures are independently associated with outcome in infants at risk for hypoxic-ischemic

brain injury. J Pediatr. 2009;155:318–23.

48. Fox CK, Glass HC, Sidney S, et al. Neonatal seizures triple the risk of a remote seizure after perinatal ischemic stroke. Neurology.

2016;86:2179–86.

49. Tsuchida TN, Wusthoff CJ, Shellhaas RA, et al. American clinical neurophysiology society standardized EEG terminology and categorization for

the description of continuous EEG monitoring in neonates: report of the American Clinical Neurophysiology Society critical care monitoring committee. J Clin Neurophysiol. 2013;30:161–73.

50. Volpe JJ. Neonatal seizures: current concepts and revised classification. Pediatrics. 1989;84:422–8.

51. Mizrahi EM, Kellaway P. Characterization and classification of neonatal seizures. Neurology. 1987;37:1837–44.

52. Nagarajan L, Palumbo L, Ghosh S. Classification of clinical semiology in epileptic seizures in neonates. Eur J Paediatr Neurol. 2012;16:118–25.

53. Malone A, Ryan CA, Fitzgerald A, et al. Interobserver agreement in neonatal seizure identification. Epilepsia. 2009;50:2097–101.

54. Guidelines on neonatal seizures. Geneva: World Health Organizatin; 2011.

55. Clancy RR, Legido A, Lewis D. Occult neonatal seizures. Epilepsia. 1988;29:256–61.

56. Connell J, Oozeer R, de Vries L, et al. Clinical and EEG response to anticonvulsants in neonatal seizures. Arch Dis Child. 1989;64:459–64.

57. Naim MY, Gaynor JW, Chen J, et al. Subclinical seizures identified by postoperative electroencephalographic monitoring are common after neonatal cardiac surgery. J Thorac Cardiovasc Surg. 2015;150:169–78.

58. Scher MS, Alvin J, Gaus L, et al. Uncoupling of EEG-clinical neonatal seizures after antiepileptic drug use. Pediatr Neurol. 2003;28:277–80.

59. Murray DM, Ryan CA, Boylan GB, et al. Prediction of seizures in asphyxiated neonates: correlation with continuous video-electroencephalographic

monitoring. Pediatrics. 2006;118:41–6.

60. Awal MA, Lai MM, Azemi G, et al. EEG background features that predict outcome in term neonates with hypoxic ischaemic encephalopathy: A structured review. Clin Neurophysiol. 2016;127:285–96.

61. Nash KB, Bonifacio SL, Glass HC, et al. Video-EEG monitoring in newborns with hypoxic-ischemic encephalopathy treated with hypothermia.

Neurology. 2011;76:556–62.

62. Hellström-Westas L, Liu X, Thoresen M, et al. Effect of hypothermia on amplitude-integrated electroencephalogram in infants with asphyxia.

Pediatrics. 2010;126:e131–9.

63. Shah DK, Wusthoff CJ, Clarke P, et al. Electrographic seizures are associated with brain injury in newborns undergoing therapeutic hypothermia. Arch Dis Child Fetal Neonatal Ed. 2014;99:F219–24.

64. Wusthoff CJ, Dlugos DJ, Gutierrez-Colina A, et al. Electrographic seizures during therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy. J Child Neurol. 2011;26:724–8.

65. Lynch NE, Stevenson NJ, Livingstone V, et al. The temporal evolution of electrographic seizure burden in neonatal hypoxic ischemic encephalopathy. Epilepsia. 2012;53:549–57.

66. Shah DK, Zempel J, Barton T, et al. Electrographic seizures in preterm infants during the first week of life are associated with cerebral injury. Pediatr Res. 2010;67:102–6.

67. Wusthoff CJ, Shellhaas RA, Clancy RR. Limitations of single-channel EEG on the forehead for neonatal seizure detection. J Perinatol. 2009;29:237–42.

68. de Vries LS, Hellstrom-Westas L. Role of cerebral function monitoring in the newborn. Arch Dis Child Fetal Neonatal Ed. 2005;90:F201–7.

69. Shellhaas RA, Soaita AI, Clancy RR. Sensitivity of amplitude-integrated electroencephalography for neonatal seizure detection. Pediatrics. 2007;20:770–7.

70. Mackay M, Lavery S, Shah DK, et al. Accuracy of bedside electroencephalographic monitoring in comparison with simultaneous continuous

conventional electroencephalography for seizure detection in term infants. Pediatrics. 2008;121:1146–54.

71. Shellhaas RA, Clancy RR. Characterization of neonatal seizures by conventional EEG and single-channel EEG. Clin Neurophysiol. 2007;118:2156–61.

72. Boylan G, Burgoyne L, Moore C, et al. An international survey of EEG use in the neonatal intensive care unit. Acta Paediatr. 2010;99:1150–5.

73. Shah NA, Van Meurs KP, Davis AS., Amplitude-integrated electroencephalography: a survey of practices in the United States. Am J Perinatol.

2015;32:755–60.

74. Scher MS, Stein AD, Painter MJ, et al. Phenobarbital compared with phenytoin for the treatment of neonatal seizures. N Engl J Med.

1999;341:485–9.

75. Glass HC, Kan J, Bonifacio SL, Ferriero DM. Neonatal seizures: treatment practices among term and preterm infants. Pediatr Neurol. 2012;46:111–5.

76. Bartha AI, Shen J, Katz KH, et al. Neonatal seizures: multicenter variability in current treatment practices. Pediatr Neurol. 2007;37:85–90.

77. Bassan H, Bental Y, Shany E, et al. Neonatal seizures: dilemmas in workup and management. Pediatr Neurol. 2008;38:415–21.

78. Sharpe CM, Capparelli EV, Mower A, et al. A seven-day study of the pharmacokinetics of intravenous levetiracetam in neonates: marked

changes in pharmacokinetics occur during the first week of life. Pediatr Res. 2012;72:43–9.

79. Merhar SL, Schibler KR, Sherwin CM, et al. Pharmacokinetics of levetiracetam in neonates with seizures. J Pediatr. 2011;159:152–4.

80. Castro Conde JR, Hernandez-Borges AA, Domenech Martinez E, et al. Midazolam in neonatal seizures with no response to phenobarbital.

Neurology. 2005;64:876–9.

81. Hirsch LJ, Emerson RG, Claassen J, et al. Continuous EEG monitoring and midazolam infusion for refractory nonconvulsive status epilepticus.

Neurology. 2001;57:1036–42.

82. Guillet R, Kwon J. Seizure recurrence and developmental disabilities after neonatal seizures: outcomes are unrelated to use of phenobarbital prophylaxis. J Child Neurol. 2007;22:389–95.

83. Hellstrom-Westas L, Blennow G, Lindroth M, et al. Low risk of seizure recurrence after early withdrawal of antiepileptic treatment in the neonatal

period. Arch Dis Child Fetal Neonatal Ed. 1995;72:F97–101.

84. Gospe SM Jr. Neonatal vitamin-responsive epileptic encephalopathies. Chang Gung Med J. 2010;33:1–12.

85. Numis AL, Angriman M, Sullivan JE, et al. KCNQ2 encephalopathy: delineation of the electroclinical phenotype and treatment response.

Neurology. 2014;82:368–70.

86. Holmes GL, Ben-Ari Y. The neurobiology and consequences of epilepsy in the developing brain. Pediatr Res. 2001;49:320–5.

87. van Rooij LG, de Vries LS, Handryastuti S, et al. Neurodevelopmental outcome in term infants with status epilepticus detected with amplitude-

integrated electroencephalography. Pediatrics. 2007;120:e354–63.

88. Wyatt JS, Gluckman PD, Liu PY, et al. Determinants of outcomes after head cooling for neonatal encephalopathy. Pediatrics. 2007;119:912–21.

89. Camfield C, Camfield P, Gordon K, et al. Outcome of childhood epilepsy: a population-based study with a simple predictive scoring system for those treated with medication. J Pediatr. 1993;122:861–8.

Publications
Topics

Authors: Shavonne L. Massey, MD and Hannah C. Glass, MDCM, MAS

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Seizures are among the most common signs of neurologic dysfunction in the neonatal period.1  Seizures in the neonate most often represent acute injury to the central nervous system, and, less commonly, are the initial presentation of an epilepsy syndrome. During childhood, the highest risk of seizure is in the first year of life, and within that first year the highest risk is in the neonatal period, which is defined as up to 28 days out of the womb or ≤ 44 weeks’ gestation for preterm neonates.2  

Seizures in neonates are associated with adverse short- and long-term outcomes, and the seizures themselves may result in additional brain injury.3–8   These adverse outcomes can lead to financial, social, and emotional costs to the patient and caregivers. As studies have linked seizure burden and outcome, it is important to quickly recognize, diagnose, and treat seizures in neonates. Because clinical identification of seizures is not reliable and seizures in neonates often do not have an apparent clinical correlate, neuromonitoring techniques should be used to accurately diagnose and manage neonatal seizures.  Table 1 lists common neonatal abbreviations and terms used in this article.

Epidemiology

Seizures are among the most common conditions encountered in the neonatal neurocritical care unit.1  The population-based incidence of seizures in neonates ranges from approximately 1 to 5 per 1000 live births in term neonates (≥ 37 weeks’ gestation), but these estimates are based largely on clinical detection of abnormal movements suspected to be seizure, and the actual incidence of electrographic seizures is not known.10  The incidence of seizures is reported to be up to 10-fold higher in preterm (< 37 weeks’ gestation) and low-birth-weight (< 2500 g at birth) neonates, with estimated incidence inversely proportionate to both gestational age and birth weight.2  The estimated incidence of seizure is 20 per 1000 live births in neonates and up to 57 per 1000 live births in low-birth-weight preterm neonates.2,11,12   Table 2 outlines potential risk factors for neonatal seizures.13,14

Etiology

The most common etiology of seizures in neonates is hypoxic-ischemic encephalopathy (HIE). Altogether the acute symptomatic causes, which also include ischemic stroke, intracranial hemorrhage, and, less commonly, infection or transient metabolic abnormalities, account for more than 75% of neonatal seizures (Table 3).15,16   Collectively, the neonatal-onset epilepsies (due to genetic epileptic encephalopathies, benign familial seizures, or brain malformations) comprise a small but important cause of neonatal seizures.16  It is important to distinguish acute symptomatic causes from neonatal-onset epilepsies, since the approach to diagnosis, management, and antiseizure medication choice will differ. Transient metabolic causes of seizures (eg, hypoglycemia, hypocalcemia, and hyponatremia) rarely cause seizure in a tertiary care setting, but must be investigated emergently as correction will often be the only treatment needed.

 

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Hypoxic-Ischemic Encephalopathy

HIE is the most common cause of seizures in neonates.15,18,19  Neonates with HIE present with encephalopathy and indicator(s) of a perinatal event (eg, placental abruption, umbilical cord dysfunction), which may include low Apgar scores, acidotic pH, and/or need for advanced resuscitation.20  Seizure onset is typically within the first 24 hours after birth.21,22  Therapeutic hypothermia (which is standard of care for neonates ≥ 36 weeks’ gestation with moderate to severe HIE) has been shown to reduce seizures, but approximately 50% of treated neonates have electrographic seizures nonetheless.23   For this reason, continuous brain monitoring is recommended.17

 

 

Ischemic Stroke

The incidence of perinatal arterial ischemic stroke is approximately 10 to 20 per 100,000 live births.24,25  The left middle cerebral artery territory is the most common location of injury, and therefore right-sided hemiclonic seizures (especially in a well-appearing neonate) are a common initial presentation. The etiology is thought to be embolism from the placenta or umbilical cord. Maternal risk factors for arterial stroke include infertility, preeclampsia, prolonged rupture of membranes, and chorioamnionitis.25,26  Infant risk factors are congenital cardiac abnormalities (and especially need for balloon atrial septostomy), systemic and intracranial infection, thrombophilia, and male sex.26,27 Venous strokes occur most commonly in the setting of illnesses, including dehydration and sepsis.28

 

Intracranial Hemorrhage

Intracranial hemorrhage into the parenchyma or extra-axial spaces, most commonly intraventricular and subarachnoid, can cause seizures (small subdural hemorrhages are common and rarely symptomatic).  Intraventricular hemorrhage is the most common cause of seizures in preterm neonates.12,29  Parenchymal hemorrhages may be due to trauma, vascular malformation, cerebral sinovenous thrombosis, or coagulopathy, although in a large proportion, the cause is unknown.30,31

 

Central Nervous System Infections

Congenital and postnatal central nervous system infections are a rare cause of seizures in neonates. Infection can be acute or chronic and viral (eg, herpes simplex virus, parechovirus, and disseminated enterovirus) or bacterial (eg, group B streptococcus and Escherichia coli).

 

Brain Malformations

Brain malformations (eg, polymicrogyria, holoprosencephaly, schizencephaly, and lissencephaly, among others) may cause epilepsy with onset in the neonatal period. Neonates with brain malformations can also have seizures due to comorbid HIE and/or electrolyte disturbances or hypoglycemia due to pituitary dysfunction.16

 

Neonatal-Onset Genetic Epilepsy Syndromes

Neonatal-onset genetic epilepsy syndromes can be benign or malignant. KCNQ2/3 voltage-gated potassium channel mutations were recently recognized as a cause of both benign and malignant neonatal seizure syndromes.32  Benign neonatal familial epilepsy is an autosomal dominant disorder characterized by seizures that typically arise in the first days of life, are easily controlled with antiseizure medications, and resolve within the first year of life. Neonatal-onset epileptic encephalopathies due to KCNQ mutations occur sporadically. Seizure onset is within the first days of life, electroencephalography (EEG) background is abnormal (typically a burst suppression pattern), and seizures can be difficult to control.33  The seizures may resolve in infancy or childhood, but children are typically left with severe global impairments.34 Interestingly, focal tonic seizures are the predominant semiology in both the benign and malignant syndromes. Other genetic causes of early-onset epilepsy syndromes include pyridoxine-dependent epilepsy (ALDH7A1, PNPO) and benign familial infantile epilepsy (PRRT2/KCNT2). Early infantile epileptic encephalopathy (Ohtahara syndrome) and early myoclonic epilepsy have been associated with multiple genetic abnormalities including ARX, CDKL5, and STXBP1 mutations. There is increasing evidence that clinical epilepsy syndromes may be caused by multiple genetic defects, whereas different defects in the same gene may cause diverse phenotypes.

 

Other Causes

Very rare causes of seizures in neonates include inborn errors of metabolism (eg, urea cycle defects, organic acidurias, and aminoacidopathies), disorders of neurotransmitter metabolism (eg, pyridoxine-dependent epilepsy, nonketotic hyperglycinemia), disorders of energy metabolism (eg, mitochondrial disorders, GLUT1 glucose transporter deficiency, molybdenum cofactor deficiency, and isolated sulfite oxidase deficiency), and biosynthetic defects causing brain malformation or dysfunction (eg, peroxisomal biogenesis disorders). Maternal selective serotonin reuptake inhibitor (SSRI) and serotonin–norepinephrine reuptake inhibitor (SNRI) use during pregnancy may be associated with clinical convulsions in the first hours after birth (SSRI) and electroclinical seizures (SNRI) starting in the first 3 days after birth.35,36  Convulsions without EEG correlate need not be treated with antiseizure medications.

 

Pathophysiology

Neonates are particularly susceptible to seizures. This increased susceptibility to seizures can be attributed to the risk for trauma during delivery as well as to multiple age-dependent mechanisms.37–39  Enhanced excitability is related to the paradoxical excitatory effect of gamma-aminobutyric acid (GABA) in immature neurons, developmental differences in the glutamatergic system, and delayed maturation of inhibitory systems (Table 4).

Acute symptomatic seizures may harm the developing brain. Studies using animal models show that young animals are more resistant to hippocampal necrosis as compared to adult animals who are subjected to seizures, but hyperthermia and seizures are associated with hippocampal necrosis.40  Additionally, developmental alterations in neuronal circuitry are evident even in the absence of necrosis; early seizures can lead to changes in learning and memory through mechanisms that include altered hippocampal signaling and plasticity, decreased neurogenesis, and delayed neuronal loss.41–44 In animal models, neonatal seizures are also associated with a higher risk of epilepsy later in life.45

In humans, the developmental effect of seizures is difficult to distinguish from the effect of the underlying brain injury, but there is emerging evidence that seizures may have a similar effect in humans as in animal models. Neonates with HIE and seizures have higher lactate peak on magnetic resonance spectroscopy, a finding that is independent of the severity of brain injury.46  Furthermore, children with HIE and early-life seizures also have worse developmental outcomes, and again this finding persists after adjusting for the severity of brain injury.47 Finally, early-life seizures are an important risk factor for remote seizures in children with perinatal stroke.48

 

Diagnosis

Seizure Definitions

There are 3 types of seizure in the neonate: clinical only, electroclinical, and EEG only (Table 5).

A clinical-only seizure consists of a sudden abnormal clinical change without a coinciding EEG change. On EEG, a seizure is characterized by a sudden abnormal event with a repetitive and evolving pattern that has a minimum peak-to-peak voltage of 2 μV and lasts > 10 seconds (also called an electrographic seizure, Figure 1). An electroclinical seizure consists of a clinical seizure that is simultaneously paired with an electrographic seizure. An EEG-only seizure is a clear electrographic seizure that does not have any associated outwardly visible signs. Neonatal status epilepticus is defined as the summed duration of seizures comprising more than 50% of an arbitrarily defined 1-hour epoch, and thus EEG monitoring is required to make this diagnosis.49

 

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Clinical Seizure Semiology

The diagnostic strategies used to identify neonatal seizures have evolved over time. Early studies of neonatal seizures were based solely on clinical observation. Seizures were defined as a paroxysmal alteration in neurologic function that may be temporally associated with electrocerebral changes.50 The most widely accepted scheme for clinical seizures is that proposed by Volpe, in which neonatal seizures are classified as clonic, tonic, myoclonic, or subtle.50  Seizure semiologies have varying concordance with electrophysiology studies. Interestingly, clonic seizures are most reliably associated with an electrographic seizure but are much less common than subtle seizures, which are the least likely clinical seizure type to be associated with an electrographic seizure.51 Generalized tonic–clonic seizures are generally not seen in neonates due to incomplete myelination and limited ability of the neonatal brain to generate a generalized seizure. A modern cohort study involving 647 neonates with video EEG recording examined 160 electrographic seizures in 43 neonates. Myoclonic seizures did not occur. Clonic and tonic seizures occurred in 23% and 25% of the electroclinical seizures, respectively. Subtle seizures were common, with abnormal ocular movements in 70%, orolingual movements in 56%, hypomotor movement in 28%, and autonomic changes in 56%.52 Modern definitions of seizure consider only those that have an electrographic correlate.49

 

It has become increasingly apparent that clinical observation for seizure detection is insufficient because it has the potential to both overestimate and underestimate the actual seizure burden of the neonate.9  Given the inconsistent correlation between the various described semiologies and electrographic seizures, clinical events noted at the bedside may easily be mistaken for seizure. Indeed, studies have shown poor interrater agreement regarding clinically diagnosed neonatal seizures.9,53  In addition, the bedside clinician will miss seizures that are subclinical (EEG-only) or have subtle manifestations. As a result, EEG use is the gold standard for seizure detection in neonates. The American Clinical Neurophysiology Society (ACNS) provides guidelines for standardized terminology and evaluation of EEG in neonates.49

 

Neuromonitoring Guidelines

There are 2 primary guidelines for EEG monitoring in the neonatal population. The World Health Organization’s “Guideline on Neonatal Seizures” was created by a multidisciplinary international group of experts with the intention of providing information and recommendations for widespread use of EEG monitoring.54  Strong recommendations include:

  • all clinical seizures should be confirmed by EEG where available;
  • all electrographic seizures, even without clinical symptoms, should be treated in facilities where EEG is available;
  • clinical seizures should be treated if they are prolonged (> 3 minutes) or occurring in clusters.

The ACNS published its “Guideline on Continuous Electroencephalography Monitoring in Neonates” in 2011.17 The document is a consensus statement from neurophysiology experts for standardizing and optimizing neuromonitoring strategies for neonates. To date, this is the most comprehensive guide on neonatal neuromonitoring. Per the ACNS guideline, there are 2 primary indications for EEG monitoring in neonates: (1) to evaluate for electrographic seizures and (2) to judge the severity of an encephalopathy. In terms of seizure detection, the EEG should be used to:

  • determine whether a paroxysmal, sudden, repetitive, inexplicable event is a seizure;
  • evaluate for the presence of EEG-only seizures;
  • evaluate for subclinical seizures while weaning antiseizure medications;
  • characterize burst suppression, an electrographic pattern that (a) can be seen in the setting of brain injury, certain metabolic encephalopathies, or genetic syndromes and (b) is used to guide therapeutic intervention in medically refractory epilepsy cases.

EEG is paramount in the evaluation of abnormal paroxysmal events to determine whether they have an electrographic correlate. In addition to the aforementioned difficulties with clinical diagnosis of seizures, neonates have a high rate of EEG-only seizures, with incidences ranging from 10% to 79% across various neonatal cohorts.55–57  These high rates of EEG-only seizures appear to be partially due to the phenomenon of electroclinical dissociation, or electromechanical uncoupling. In electroclinical dissociation, a clinical seizure triggers treatment with an antiseizure medication, but following treatment clinical signs of the seizure disappear while the electrographic seizure continues. Electroclinical dissociation occurs in roughly 50% of neonates.58

The second purpose of EEG monitoring in the neonate is to assess the degree of encephalopathy. The EEG serves as a measure of the neonate’s cortical health. The neurological examination during the neonatal period can be limited by both intrinsic and iatrogenic factors, and many of the activities tested in the neonate (eg, gross movements, the ability to orally feed, the ability to breathe, and the presence of primitive reflexes) are largely measures of brainstem function or spinal reflexes rather than cerebral cortical function. A neonate could potentially have a large supratentorial insult and still accomplish many of the tasks of the neonatal neurologic examination. The EEG is, therefore, an important functional measure of cerebral health in the neonate, and acts as an extension of the neonatal neurologist’s physical examination.

EEG background assessment is also predictive of both short-term outcomes (eg, risk of seizures) and long-term neurodevelopmental outcomes. Interest in using the EEG as a predictor of short- and long-term outcomes is growing, as there is increasing evidence that clinical variables can have limited predictive capability.23 A 2006 study showed that the combination of low Apgar score, low pH, and need for intubation had a positive predictive value of only 25% and negative predictive value of 77% for acute seizure.59 While these features seen immediately after birth are not predictive of seizure, the persistence of certain features, such as lactic acidosis, are more predictive of acute seizure, with longer times to normalization positively associated with higher seizure burden.9 Numerous studies, on the other hand, have shown that a normal or mildly abnormal EEG background is associated with a favorable outcome, while a low-voltage or inactive background is associated with death or significant neurodevelopmental disability.49  2016 systematic review of the predictive ability of EEG background features in neonates with HIE examined studies from 1960 to 2014. The review concluded that the appearance of burst suppression (sensitivity 0.87, specificity 0.82), low voltage (sensitivity 0.92, specificity 0.99), and a flat EEG tracing (sensitivity 0.78, specificity 0.99) were most predictive of adverse neurodevelopmental outcomes.60 Neonates with early recovery of EEG background (within 24–36 hours) may be spared adverse outcomes.61,62 A 2014 multicenter study evaluating clinical and EEG risk factors for 90 full-term neonates with HIE found that the initial EEG background predicted subsequent seizure occurrence (excessively discontinuous background with relative risk 17.5; severely abnormal background with relative risk 13) more accurately than clinical variables.23

The ACNS guideline also provides more specific details regarding how neuromonitoring should occur. Any neonate receiving an EEG should have at least 1 hour of recording to allow for a full cycle of wakefulness and sleep. At-risk neonatal populations (Table 6) should be monitored for at least 24 hours with EEG to screen for EEG-only seizures, even in the absence of clinically concerning paroxysmal movements. The vast majority of acute seizures in high-risk neonatal groups will occur in the first 24 hours, with nearly 100% occurring within 72 hours of the insult.21,57,63–66  If seizures are detected, the neonate should be monitored until there is no further evidence of seizure on EEG for at least 24 hours. If there are multiple abnormal paroxysmal events of concern, EEG monitoring should continue until all of the events in question are captured.

 

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A subsequent report from the ACNS published in 2013 details the exact features of the EEG that should be evaluated in neonates.49  The specific features that are to be assessed in each neonatal EEG include behavioral state, EEG background features, the presence or absence of normal graphoelements, the presence of EEG transient patterns, and the presence of seizures and status epilepticus (Table 5).

Neuromonitoring Modalities

There are 2 primary EEG modalities utilized in the neonatal intensive care unit (NICU): conventional EEG (cEEG) and amplitude-integrated EEG (aEEG).

Conventional EEG. Also called continuous EEG or video EEG, cEEG employs the standardized International 10-20 System of electrode placement with additional electrocardiogram (ECG), respiratory, eye (electrooculographic [EOG]), and electromyography (EMG) channels. cEEG is the gold standard for EEG monitoring in the neonate (Figure 2). It allows for coverage of the entire cerebral landscape, and use of the supplemental channels helps the electroencephalographer decipher cerebral abnormalities from artifactual changes. Additionally, while the patient’s behavioral state is often obvious in adult and pediatric EEGs, behavioral state is notoriously difficult to decipher in neonatal EEGs, given that cerebral patterns of wakefulness and sleep can have similar electrographic appearances in the neonate. The addition of the supplementary channels (ECG, respiratory, EOG, and EMG) adds context to the cerebral patterns to help the neonatal electroencephalographer interpret behavioral state.

While cEEG is the most comprehensive neuromonitoring strategy with the highest yield for accurate seizure detection, it has drawbacks. It is a costly and labor-intensive procedure, requiring trained technologists to apply and set up the EEG, and trained neurophysiologists to interpret the recorded data. This process can lead to delays in the application of the EEG, recognition of seizure on EEG, and subsequent intervention on actionable EEG changes. There have, therefore, been attempts to adapt other modalities, such as quantitative analyses and trending, for bedside use.

Amplitude-integrated EEG. The most commonly employed alternative EEG strategy in the NICU is aEEG, which is a bedside tool that uses a limited recording strategy. A reduced montage of 2 to 4 channels records electrical signal, which is then transformed based on a specific factor (such as amplitude) and displayed on a compressed timescale ranging from 2 to 24 hours (Figure 3). Leads are often placed in the bilateral central or parietal regions for maximal seizure detection, given that the centrotemporal region is the most common location for neonatal seizures.67  The aEEG is typically applied and interpreted by the bedside neonatologist or nurse. This rapid application and interpretation feasibly leads to more rapid intervention. aEEG has an established and validated role in assessment of encephalopathy, particularly in HIE.68 Given the reduced number of recording channels, aEEG is less accurate than cEEG for detecting seizures. While aEEG can accurately identify the binary presence of any seizures in a neonatal EEG record, it largely underestimates the true seizure burden.69,70 aEEG often misses seizures that are composed of slow frequencies and/or low amplitudes and are brief in duration. Seizures can also be missed depending on electrode placement in relation to the location of the seizure.71 aEEG is also subject to false positives, as artifacts can be misinterpreted as cerebral abnormalities. The aEEG lacks the video, EMG, eye, respiratory, and ECG leads that aid the electroencephalographer in deciphering between artifact and cerebral abnormality on cEEG. Lastly, confidence and comfort in aEEG interpretation is variable and often affected by experience and exposure. Survey data suggest a general lack of confidence in aEEG interpretation.72

Despite its limitations, aEEG is being increasingly used in NICUs around the world. A recent survey of U.S. neonatologists found that 55% of respondents use aEEG in their NICU, most often for neonates with hypothermia/HIE (95%) and/or suspected seizures (75%). aEEG was most commonly used to make decisions regarding seizure treatment (~80%), to make decisions regarding therapeutic hypothermia initiation (~50%), for counseling and prognosis (~50%), and to aid in making decisions regarding medication dosages and treatment duration (~35%).73  The ACNS specifically notes that cEEG is the gold standard for seizure detection in the neonate.17 However, recognizing that aEEG use is increasing, the authors comment that aEEG can be used as a supplemental neuromonitoring strategy, particularly in clinical settings where cEEG access is limited. Given the issues with aEEG diagnosis and characterization of neonatal seizures, if seizures are suspected using aEEG, they should be confirmed on cEEG.

 

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Treatment

There are no widely accepted guidelines for seizure management in neonates. Optimal treatment of seizures involves rapid identification of the underlying cause (as discussed above, seizures are most often symptomatic of an underlying brain injury, with transient metabolic and early-onset epilepsies as rarer causes). In the acute setting, seizures should be treated as a medical emergency. Reversible causes such as hypoglycemia and hypocalcemia must be immediately evaluated and treated. If infection is suspected, appropriate cultures should be drawn and treatment with antibiotics and/or antivirals initiated. Urgent evaluation of patient and family history, ancillary testing such as EEG and imaging studies, and laboratory tests are important to determine whether the seizures are due to an acute symptomatic cause or an early-onset epilepsy, as the treatment approach differs for each.

 

Treatment of Acute Symptomatic Seizures

The primary goal of acute symptomatic seizure treatment is to rapidly titrate medications to abolish EEG seizures (including seizures without clear clinical correlate) with the goal of minimizing seizure burden. Acute symptomatic seizures usually begin within 24 to 48 hours after birth (or the acute event) and resolve within 2 to 4 days.65  Since seizures persist after the first dose of medication in more than 50% of neonates, it is important to continue to monitor by EEG for recurrent seizures for at least 24 hours. There are no guidelines to direct the selection of antiseizure medication. A single trial showed that phenobarbital and phenytoin (each given as a bolus dose of 20 mg/kg) had equal efficacy.74 Phenobarbital is the most commonly used initial medication in multiple international surveys and studies.15,75–77

Levetiracetam is a safe alternative that is used widely, although randomized efficacy data are lacking.15,78,79  A large randomized controlled trial comparing phenobarbital and levetiracetam for first-line treatment of neonatal seizures was recently completed (NeoLev2). Preliminary results demonstrate a significantly higher rate of seizure cessation with phenobarbital administration, but fewer side effects with levetiracetam administration. Final results are pending publication. Midazolam infusion is a reasonable alternative or add-on agent for refractory seizures and status epilepticus.80,81

Maintenance antiseizure medications can safely be discontinued in the neonatal period.82,83 For most patients, treatment for 24 to 72 hours after resolution of the acute symptomatic seizures is safe. For neonates without confirmed electrographic seizures (and an adequate monitoring period to capture the events and/or 24 hours seizure-free), maintenance dosing with antiseizure medications may not be necessary, as the likelihood of either nonepileptic events or resolution of seizures is high.

 

Treatment of Neonatal-Onset Epilepsy

Neonatal-onset epilepsy should be considered when a child has confirmed EEG seizures and an acute symptomatic cause is not found. The approach to treating epilepsy is different from the approach to treating acute symptomatic seizures: medications can be carefully titrated to maximally tolerated doses to determine efficacy and must be continued after discharge home even if seizures are well controlled with antiseizure medications. If no acute symptomatic cause of seizures is identified, a trial of pyridoxine (100 mg intravenously [IV] while EEG is recording), folinic acid (2.5 mg IV), and pyridoxal 5’-phosphate (60 mg/kg/day divided 3 times daily for 2–3 days) is warranted while genetic testing for underlying vitamin-dependent epilepsies is pending.84  For neonates with suspected KCNQ2/3 epilepsy (either benign or malignant), carbamazepine or oxcarbazepine is indicated as the first-line agent, with retigabine as an alternate agent.85 Neonates with focal seizures due to brain malformation may also respond to carbamazepine/oxcarbazepine. Table 7 lists the most commonly used antiseizure medications in neonates.

 

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Outcomes

Both animal and human data suggest that seizures can negatively impact the developing brain. As noted in the Pathophysiology section, preclinical studies suggest that the immature brain is more susceptible to seizures, and that seizures during early life may result in the development of inappropriate cerebral electrical pathways, which can beget epileptic networks later in life.86 Clinical data have been less definitive, as the link between poor outcomes and seizure is complicated by the underlying etiology and, possibly, interventions. Typical outcome measures assessed in neonatal seizure populations are neuroimaging, neurodevelopment, and occurrence of remote epilepsy. Several studies have shown a correlation between seizure burden and worsened magnetic resonance imaging (MRI) scores, particularly in neonates with HIE.4,21,63 The sheer presence of electrographic seizures is associated with acute MRI injury, with higher seizure burden correlating with more severe MRI injury. The association between seizures and MRI injury does not appear to vary with seizure type (electroclinical versus EEG only).21 In neonates with HIE, those with seizures are more likely to have cortical or near-total brain injuries seen on MRI as compared with those without seizures.21

Neurodevelopmental measures are consistently worse in children with a history of neonatal seizures compared with healthy peers or populations with neonatal brain injury without seizure. A prospectively assembled cohort with clinically diagnosed neonatal seizures followed for a median of 10 years in Newfoundland, Canada, has provided some of the most informative longitudinal data on such patients.8 Children born at term do better than children born prematurely, but increased rates of morbidity and mortality are present in both groups. During the 10-year follow up period, 16% of term neonates and 42% of preterm neonates died. Among survivors, impairments were seen in 39% of term neonates and 46% of preterm neonates at follow up. The most common impairments were epilepsy (27%), learning disabilities (27%), cerebral palsy (25%), and intellectual disability (20%). Predictors of poor outcome included severe encephalopathy, cerebral dysgenesis, complicated intraventricular hemorrhage, infections in preterm neonates, abnormal EEG, and requiring multiple antiseizure medications.

Other studies have found that the presence of neonatal seizures is associated with development of microcephaly, cerebral palsy, and failure to thrive, particularly in subsets of children with HIE.7 In addition, studies have suggested a relationship between seizure burden and developmental outcomes, with increasing seizure burden associated with worse neurodevelopmental outcome. A study of a heterogenous group of 56 term neonates with status epilepticus found that 75% had poor outcomes, defined as a developmental quotient less than 85 at 18 months of age or later.87  In a subset of patients with HIE, the duration of status epilepticus was predictive of poor neurodevelopmental outcomes, with neonates with poor neurodevelopmental outcomes having a median of 215 minutes of seizure and those with good neurodevelopmental outcomes having a median of 85 minutes of seizure. Others have studied the impact of neonatal seizures on intelligence quotients (IQ), finding that the presence of high clinical and/or EEG seizure burden in the setting of HIE was associated with substantially lower full-scale IQ scores (96.9 in no seizure, 82.7 in mild/moderate seizures, 67.2 in severe seizures), which was maintained after adjusting for MRI severity.47 Additionally, the absence of seizures has been shown to be an independent predictor of improved 18-month outcomes, defined as lack of death or disability, in asphyxiated neonates treated with hypothermia.88

The risk of epilepsy following neonatal seizures is also increased compared to the general population. A 2015 literature review found that in 4538 children with a history of neonatal seizures, 18% developed epilepsy, with nearly 70% having onset within the first year of life.6 Of those patients who developed epilepsy, 81% had an associated neurological impairment (18% with intellectual impairment, 6% with cerebral palsy, and 45% with both cerebral palsy and intellectual impairment). Additionally, population studies of children with epilepsy have shown that a history of neonatal seizures decreases the likelihood of later seizure freedom.89

 

Conclusion

The risk of brain injury is high in the perinatal and neonatal period. Seizures, which are the most common manifestation of cerebral injury during the neonatal period, are therefore relatively common. Neonatal seizures most often represent an acute cerebral injury, but can also be the result of a developmental brain abnormality or genetic epilepsy, and herald risk of continued or recurrent seizure. Although there is a long list of potential causes of neonatal seizures, by far the most common cause of seizure in the term neonate is HIE. The only intervention for this entity, therapeutic hypothermia, leads to improved neurodevelopmental outcomes and appears to lower the seizure burden. It is important for the practitioner to be mindful of potential other causes for neonatal seizures, particularly when there is no history of a clear asphyxial event, as these other etiologies may require etiology-specific treatments and may confer different prognoses. There are several populations considered high risk for neonatal seizures, and neuromonitoring with cEEG should be strongly considered in these patients given high rates of subclinical seizures.

When they occur, neonatal seizures are frequent, typically occur within the first 48 hours following insult, are often subclinical, and most often have a centrotemporal onset. Seizures are classified as clinical only, electroclinical, and EEG only depending on the presence and relationship of paroxysmal abnormal movements with defined changes on the EEG. Although traditionally the diagnosis of seizure was made on a clinical basis, it is now well established that the clinical diagnosis of seizures will both overestimate and underestimate the true incidence of seizure. As a result, EEG is required for the diagnosis of neonatal seizures. cEEG remains the gold standard for neonatal neuromonitoring, although adapted montages such as aEEG can act as a complementary bedside tool for more rapid seizure management.

The mainstays of treatment for neonatal seizures are phenobarbital, phenytoin, and benzodiazepines. These medications are the only treatments that have been studied in a randomized fashion with published results. None of these treatments are ideal, as they are at best moderately effective, all have side effects that can be dose-limiting, and their prolonged use may be harmful. Newer-generation medications such as levetiracetam are being used with increasing frequency, although safety and efficacy data are limited. Given the relationship between neonatal seizures and neurodevelopment, mortality, and the development of epilepsy, it is important that we continue to strive to find the ideal intervention strategy for these youngest and most vulnerable members of society.

 

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Authors: Shavonne L. Massey, MD and Hannah C. Glass, MDCM, MAS

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Seizures are among the most common signs of neurologic dysfunction in the neonatal period.1  Seizures in the neonate most often represent acute injury to the central nervous system, and, less commonly, are the initial presentation of an epilepsy syndrome. During childhood, the highest risk of seizure is in the first year of life, and within that first year the highest risk is in the neonatal period, which is defined as up to 28 days out of the womb or ≤ 44 weeks’ gestation for preterm neonates.2  

Seizures in neonates are associated with adverse short- and long-term outcomes, and the seizures themselves may result in additional brain injury.3–8   These adverse outcomes can lead to financial, social, and emotional costs to the patient and caregivers. As studies have linked seizure burden and outcome, it is important to quickly recognize, diagnose, and treat seizures in neonates. Because clinical identification of seizures is not reliable and seizures in neonates often do not have an apparent clinical correlate, neuromonitoring techniques should be used to accurately diagnose and manage neonatal seizures.  Table 1 lists common neonatal abbreviations and terms used in this article.

Epidemiology

Seizures are among the most common conditions encountered in the neonatal neurocritical care unit.1  The population-based incidence of seizures in neonates ranges from approximately 1 to 5 per 1000 live births in term neonates (≥ 37 weeks’ gestation), but these estimates are based largely on clinical detection of abnormal movements suspected to be seizure, and the actual incidence of electrographic seizures is not known.10  The incidence of seizures is reported to be up to 10-fold higher in preterm (< 37 weeks’ gestation) and low-birth-weight (< 2500 g at birth) neonates, with estimated incidence inversely proportionate to both gestational age and birth weight.2  The estimated incidence of seizure is 20 per 1000 live births in neonates and up to 57 per 1000 live births in low-birth-weight preterm neonates.2,11,12   Table 2 outlines potential risk factors for neonatal seizures.13,14

Etiology

The most common etiology of seizures in neonates is hypoxic-ischemic encephalopathy (HIE). Altogether the acute symptomatic causes, which also include ischemic stroke, intracranial hemorrhage, and, less commonly, infection or transient metabolic abnormalities, account for more than 75% of neonatal seizures (Table 3).15,16   Collectively, the neonatal-onset epilepsies (due to genetic epileptic encephalopathies, benign familial seizures, or brain malformations) comprise a small but important cause of neonatal seizures.16  It is important to distinguish acute symptomatic causes from neonatal-onset epilepsies, since the approach to diagnosis, management, and antiseizure medication choice will differ. Transient metabolic causes of seizures (eg, hypoglycemia, hypocalcemia, and hyponatremia) rarely cause seizure in a tertiary care setting, but must be investigated emergently as correction will often be the only treatment needed.

 

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Hypoxic-Ischemic Encephalopathy

HIE is the most common cause of seizures in neonates.15,18,19  Neonates with HIE present with encephalopathy and indicator(s) of a perinatal event (eg, placental abruption, umbilical cord dysfunction), which may include low Apgar scores, acidotic pH, and/or need for advanced resuscitation.20  Seizure onset is typically within the first 24 hours after birth.21,22  Therapeutic hypothermia (which is standard of care for neonates ≥ 36 weeks’ gestation with moderate to severe HIE) has been shown to reduce seizures, but approximately 50% of treated neonates have electrographic seizures nonetheless.23   For this reason, continuous brain monitoring is recommended.17

 

 

Ischemic Stroke

The incidence of perinatal arterial ischemic stroke is approximately 10 to 20 per 100,000 live births.24,25  The left middle cerebral artery territory is the most common location of injury, and therefore right-sided hemiclonic seizures (especially in a well-appearing neonate) are a common initial presentation. The etiology is thought to be embolism from the placenta or umbilical cord. Maternal risk factors for arterial stroke include infertility, preeclampsia, prolonged rupture of membranes, and chorioamnionitis.25,26  Infant risk factors are congenital cardiac abnormalities (and especially need for balloon atrial septostomy), systemic and intracranial infection, thrombophilia, and male sex.26,27 Venous strokes occur most commonly in the setting of illnesses, including dehydration and sepsis.28

 

Intracranial Hemorrhage

Intracranial hemorrhage into the parenchyma or extra-axial spaces, most commonly intraventricular and subarachnoid, can cause seizures (small subdural hemorrhages are common and rarely symptomatic).  Intraventricular hemorrhage is the most common cause of seizures in preterm neonates.12,29  Parenchymal hemorrhages may be due to trauma, vascular malformation, cerebral sinovenous thrombosis, or coagulopathy, although in a large proportion, the cause is unknown.30,31

 

Central Nervous System Infections

Congenital and postnatal central nervous system infections are a rare cause of seizures in neonates. Infection can be acute or chronic and viral (eg, herpes simplex virus, parechovirus, and disseminated enterovirus) or bacterial (eg, group B streptococcus and Escherichia coli).

 

Brain Malformations

Brain malformations (eg, polymicrogyria, holoprosencephaly, schizencephaly, and lissencephaly, among others) may cause epilepsy with onset in the neonatal period. Neonates with brain malformations can also have seizures due to comorbid HIE and/or electrolyte disturbances or hypoglycemia due to pituitary dysfunction.16

 

Neonatal-Onset Genetic Epilepsy Syndromes

Neonatal-onset genetic epilepsy syndromes can be benign or malignant. KCNQ2/3 voltage-gated potassium channel mutations were recently recognized as a cause of both benign and malignant neonatal seizure syndromes.32  Benign neonatal familial epilepsy is an autosomal dominant disorder characterized by seizures that typically arise in the first days of life, are easily controlled with antiseizure medications, and resolve within the first year of life. Neonatal-onset epileptic encephalopathies due to KCNQ mutations occur sporadically. Seizure onset is within the first days of life, electroencephalography (EEG) background is abnormal (typically a burst suppression pattern), and seizures can be difficult to control.33  The seizures may resolve in infancy or childhood, but children are typically left with severe global impairments.34 Interestingly, focal tonic seizures are the predominant semiology in both the benign and malignant syndromes. Other genetic causes of early-onset epilepsy syndromes include pyridoxine-dependent epilepsy (ALDH7A1, PNPO) and benign familial infantile epilepsy (PRRT2/KCNT2). Early infantile epileptic encephalopathy (Ohtahara syndrome) and early myoclonic epilepsy have been associated with multiple genetic abnormalities including ARX, CDKL5, and STXBP1 mutations. There is increasing evidence that clinical epilepsy syndromes may be caused by multiple genetic defects, whereas different defects in the same gene may cause diverse phenotypes.

 

Other Causes

Very rare causes of seizures in neonates include inborn errors of metabolism (eg, urea cycle defects, organic acidurias, and aminoacidopathies), disorders of neurotransmitter metabolism (eg, pyridoxine-dependent epilepsy, nonketotic hyperglycinemia), disorders of energy metabolism (eg, mitochondrial disorders, GLUT1 glucose transporter deficiency, molybdenum cofactor deficiency, and isolated sulfite oxidase deficiency), and biosynthetic defects causing brain malformation or dysfunction (eg, peroxisomal biogenesis disorders). Maternal selective serotonin reuptake inhibitor (SSRI) and serotonin–norepinephrine reuptake inhibitor (SNRI) use during pregnancy may be associated with clinical convulsions in the first hours after birth (SSRI) and electroclinical seizures (SNRI) starting in the first 3 days after birth.35,36  Convulsions without EEG correlate need not be treated with antiseizure medications.

 

Pathophysiology

Neonates are particularly susceptible to seizures. This increased susceptibility to seizures can be attributed to the risk for trauma during delivery as well as to multiple age-dependent mechanisms.37–39  Enhanced excitability is related to the paradoxical excitatory effect of gamma-aminobutyric acid (GABA) in immature neurons, developmental differences in the glutamatergic system, and delayed maturation of inhibitory systems (Table 4).

Acute symptomatic seizures may harm the developing brain. Studies using animal models show that young animals are more resistant to hippocampal necrosis as compared to adult animals who are subjected to seizures, but hyperthermia and seizures are associated with hippocampal necrosis.40  Additionally, developmental alterations in neuronal circuitry are evident even in the absence of necrosis; early seizures can lead to changes in learning and memory through mechanisms that include altered hippocampal signaling and plasticity, decreased neurogenesis, and delayed neuronal loss.41–44 In animal models, neonatal seizures are also associated with a higher risk of epilepsy later in life.45

In humans, the developmental effect of seizures is difficult to distinguish from the effect of the underlying brain injury, but there is emerging evidence that seizures may have a similar effect in humans as in animal models. Neonates with HIE and seizures have higher lactate peak on magnetic resonance spectroscopy, a finding that is independent of the severity of brain injury.46  Furthermore, children with HIE and early-life seizures also have worse developmental outcomes, and again this finding persists after adjusting for the severity of brain injury.47 Finally, early-life seizures are an important risk factor for remote seizures in children with perinatal stroke.48

 

Diagnosis

Seizure Definitions

There are 3 types of seizure in the neonate: clinical only, electroclinical, and EEG only (Table 5).

A clinical-only seizure consists of a sudden abnormal clinical change without a coinciding EEG change. On EEG, a seizure is characterized by a sudden abnormal event with a repetitive and evolving pattern that has a minimum peak-to-peak voltage of 2 μV and lasts > 10 seconds (also called an electrographic seizure, Figure 1). An electroclinical seizure consists of a clinical seizure that is simultaneously paired with an electrographic seizure. An EEG-only seizure is a clear electrographic seizure that does not have any associated outwardly visible signs. Neonatal status epilepticus is defined as the summed duration of seizures comprising more than 50% of an arbitrarily defined 1-hour epoch, and thus EEG monitoring is required to make this diagnosis.49

 

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Clinical Seizure Semiology

The diagnostic strategies used to identify neonatal seizures have evolved over time. Early studies of neonatal seizures were based solely on clinical observation. Seizures were defined as a paroxysmal alteration in neurologic function that may be temporally associated with electrocerebral changes.50 The most widely accepted scheme for clinical seizures is that proposed by Volpe, in which neonatal seizures are classified as clonic, tonic, myoclonic, or subtle.50  Seizure semiologies have varying concordance with electrophysiology studies. Interestingly, clonic seizures are most reliably associated with an electrographic seizure but are much less common than subtle seizures, which are the least likely clinical seizure type to be associated with an electrographic seizure.51 Generalized tonic–clonic seizures are generally not seen in neonates due to incomplete myelination and limited ability of the neonatal brain to generate a generalized seizure. A modern cohort study involving 647 neonates with video EEG recording examined 160 electrographic seizures in 43 neonates. Myoclonic seizures did not occur. Clonic and tonic seizures occurred in 23% and 25% of the electroclinical seizures, respectively. Subtle seizures were common, with abnormal ocular movements in 70%, orolingual movements in 56%, hypomotor movement in 28%, and autonomic changes in 56%.52 Modern definitions of seizure consider only those that have an electrographic correlate.49

 

It has become increasingly apparent that clinical observation for seizure detection is insufficient because it has the potential to both overestimate and underestimate the actual seizure burden of the neonate.9  Given the inconsistent correlation between the various described semiologies and electrographic seizures, clinical events noted at the bedside may easily be mistaken for seizure. Indeed, studies have shown poor interrater agreement regarding clinically diagnosed neonatal seizures.9,53  In addition, the bedside clinician will miss seizures that are subclinical (EEG-only) or have subtle manifestations. As a result, EEG use is the gold standard for seizure detection in neonates. The American Clinical Neurophysiology Society (ACNS) provides guidelines for standardized terminology and evaluation of EEG in neonates.49

 

Neuromonitoring Guidelines

There are 2 primary guidelines for EEG monitoring in the neonatal population. The World Health Organization’s “Guideline on Neonatal Seizures” was created by a multidisciplinary international group of experts with the intention of providing information and recommendations for widespread use of EEG monitoring.54  Strong recommendations include:

  • all clinical seizures should be confirmed by EEG where available;
  • all electrographic seizures, even without clinical symptoms, should be treated in facilities where EEG is available;
  • clinical seizures should be treated if they are prolonged (> 3 minutes) or occurring in clusters.

The ACNS published its “Guideline on Continuous Electroencephalography Monitoring in Neonates” in 2011.17 The document is a consensus statement from neurophysiology experts for standardizing and optimizing neuromonitoring strategies for neonates. To date, this is the most comprehensive guide on neonatal neuromonitoring. Per the ACNS guideline, there are 2 primary indications for EEG monitoring in neonates: (1) to evaluate for electrographic seizures and (2) to judge the severity of an encephalopathy. In terms of seizure detection, the EEG should be used to:

  • determine whether a paroxysmal, sudden, repetitive, inexplicable event is a seizure;
  • evaluate for the presence of EEG-only seizures;
  • evaluate for subclinical seizures while weaning antiseizure medications;
  • characterize burst suppression, an electrographic pattern that (a) can be seen in the setting of brain injury, certain metabolic encephalopathies, or genetic syndromes and (b) is used to guide therapeutic intervention in medically refractory epilepsy cases.

EEG is paramount in the evaluation of abnormal paroxysmal events to determine whether they have an electrographic correlate. In addition to the aforementioned difficulties with clinical diagnosis of seizures, neonates have a high rate of EEG-only seizures, with incidences ranging from 10% to 79% across various neonatal cohorts.55–57  These high rates of EEG-only seizures appear to be partially due to the phenomenon of electroclinical dissociation, or electromechanical uncoupling. In electroclinical dissociation, a clinical seizure triggers treatment with an antiseizure medication, but following treatment clinical signs of the seizure disappear while the electrographic seizure continues. Electroclinical dissociation occurs in roughly 50% of neonates.58

The second purpose of EEG monitoring in the neonate is to assess the degree of encephalopathy. The EEG serves as a measure of the neonate’s cortical health. The neurological examination during the neonatal period can be limited by both intrinsic and iatrogenic factors, and many of the activities tested in the neonate (eg, gross movements, the ability to orally feed, the ability to breathe, and the presence of primitive reflexes) are largely measures of brainstem function or spinal reflexes rather than cerebral cortical function. A neonate could potentially have a large supratentorial insult and still accomplish many of the tasks of the neonatal neurologic examination. The EEG is, therefore, an important functional measure of cerebral health in the neonate, and acts as an extension of the neonatal neurologist’s physical examination.

EEG background assessment is also predictive of both short-term outcomes (eg, risk of seizures) and long-term neurodevelopmental outcomes. Interest in using the EEG as a predictor of short- and long-term outcomes is growing, as there is increasing evidence that clinical variables can have limited predictive capability.23 A 2006 study showed that the combination of low Apgar score, low pH, and need for intubation had a positive predictive value of only 25% and negative predictive value of 77% for acute seizure.59 While these features seen immediately after birth are not predictive of seizure, the persistence of certain features, such as lactic acidosis, are more predictive of acute seizure, with longer times to normalization positively associated with higher seizure burden.9 Numerous studies, on the other hand, have shown that a normal or mildly abnormal EEG background is associated with a favorable outcome, while a low-voltage or inactive background is associated with death or significant neurodevelopmental disability.49  2016 systematic review of the predictive ability of EEG background features in neonates with HIE examined studies from 1960 to 2014. The review concluded that the appearance of burst suppression (sensitivity 0.87, specificity 0.82), low voltage (sensitivity 0.92, specificity 0.99), and a flat EEG tracing (sensitivity 0.78, specificity 0.99) were most predictive of adverse neurodevelopmental outcomes.60 Neonates with early recovery of EEG background (within 24–36 hours) may be spared adverse outcomes.61,62 A 2014 multicenter study evaluating clinical and EEG risk factors for 90 full-term neonates with HIE found that the initial EEG background predicted subsequent seizure occurrence (excessively discontinuous background with relative risk 17.5; severely abnormal background with relative risk 13) more accurately than clinical variables.23

The ACNS guideline also provides more specific details regarding how neuromonitoring should occur. Any neonate receiving an EEG should have at least 1 hour of recording to allow for a full cycle of wakefulness and sleep. At-risk neonatal populations (Table 6) should be monitored for at least 24 hours with EEG to screen for EEG-only seizures, even in the absence of clinically concerning paroxysmal movements. The vast majority of acute seizures in high-risk neonatal groups will occur in the first 24 hours, with nearly 100% occurring within 72 hours of the insult.21,57,63–66  If seizures are detected, the neonate should be monitored until there is no further evidence of seizure on EEG for at least 24 hours. If there are multiple abnormal paroxysmal events of concern, EEG monitoring should continue until all of the events in question are captured.

 

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A subsequent report from the ACNS published in 2013 details the exact features of the EEG that should be evaluated in neonates.49  The specific features that are to be assessed in each neonatal EEG include behavioral state, EEG background features, the presence or absence of normal graphoelements, the presence of EEG transient patterns, and the presence of seizures and status epilepticus (Table 5).

Neuromonitoring Modalities

There are 2 primary EEG modalities utilized in the neonatal intensive care unit (NICU): conventional EEG (cEEG) and amplitude-integrated EEG (aEEG).

Conventional EEG. Also called continuous EEG or video EEG, cEEG employs the standardized International 10-20 System of electrode placement with additional electrocardiogram (ECG), respiratory, eye (electrooculographic [EOG]), and electromyography (EMG) channels. cEEG is the gold standard for EEG monitoring in the neonate (Figure 2). It allows for coverage of the entire cerebral landscape, and use of the supplemental channels helps the electroencephalographer decipher cerebral abnormalities from artifactual changes. Additionally, while the patient’s behavioral state is often obvious in adult and pediatric EEGs, behavioral state is notoriously difficult to decipher in neonatal EEGs, given that cerebral patterns of wakefulness and sleep can have similar electrographic appearances in the neonate. The addition of the supplementary channels (ECG, respiratory, EOG, and EMG) adds context to the cerebral patterns to help the neonatal electroencephalographer interpret behavioral state.

While cEEG is the most comprehensive neuromonitoring strategy with the highest yield for accurate seizure detection, it has drawbacks. It is a costly and labor-intensive procedure, requiring trained technologists to apply and set up the EEG, and trained neurophysiologists to interpret the recorded data. This process can lead to delays in the application of the EEG, recognition of seizure on EEG, and subsequent intervention on actionable EEG changes. There have, therefore, been attempts to adapt other modalities, such as quantitative analyses and trending, for bedside use.

Amplitude-integrated EEG. The most commonly employed alternative EEG strategy in the NICU is aEEG, which is a bedside tool that uses a limited recording strategy. A reduced montage of 2 to 4 channels records electrical signal, which is then transformed based on a specific factor (such as amplitude) and displayed on a compressed timescale ranging from 2 to 24 hours (Figure 3). Leads are often placed in the bilateral central or parietal regions for maximal seizure detection, given that the centrotemporal region is the most common location for neonatal seizures.67  The aEEG is typically applied and interpreted by the bedside neonatologist or nurse. This rapid application and interpretation feasibly leads to more rapid intervention. aEEG has an established and validated role in assessment of encephalopathy, particularly in HIE.68 Given the reduced number of recording channels, aEEG is less accurate than cEEG for detecting seizures. While aEEG can accurately identify the binary presence of any seizures in a neonatal EEG record, it largely underestimates the true seizure burden.69,70 aEEG often misses seizures that are composed of slow frequencies and/or low amplitudes and are brief in duration. Seizures can also be missed depending on electrode placement in relation to the location of the seizure.71 aEEG is also subject to false positives, as artifacts can be misinterpreted as cerebral abnormalities. The aEEG lacks the video, EMG, eye, respiratory, and ECG leads that aid the electroencephalographer in deciphering between artifact and cerebral abnormality on cEEG. Lastly, confidence and comfort in aEEG interpretation is variable and often affected by experience and exposure. Survey data suggest a general lack of confidence in aEEG interpretation.72

Despite its limitations, aEEG is being increasingly used in NICUs around the world. A recent survey of U.S. neonatologists found that 55% of respondents use aEEG in their NICU, most often for neonates with hypothermia/HIE (95%) and/or suspected seizures (75%). aEEG was most commonly used to make decisions regarding seizure treatment (~80%), to make decisions regarding therapeutic hypothermia initiation (~50%), for counseling and prognosis (~50%), and to aid in making decisions regarding medication dosages and treatment duration (~35%).73  The ACNS specifically notes that cEEG is the gold standard for seizure detection in the neonate.17 However, recognizing that aEEG use is increasing, the authors comment that aEEG can be used as a supplemental neuromonitoring strategy, particularly in clinical settings where cEEG access is limited. Given the issues with aEEG diagnosis and characterization of neonatal seizures, if seizures are suspected using aEEG, they should be confirmed on cEEG.

 

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Treatment

There are no widely accepted guidelines for seizure management in neonates. Optimal treatment of seizures involves rapid identification of the underlying cause (as discussed above, seizures are most often symptomatic of an underlying brain injury, with transient metabolic and early-onset epilepsies as rarer causes). In the acute setting, seizures should be treated as a medical emergency. Reversible causes such as hypoglycemia and hypocalcemia must be immediately evaluated and treated. If infection is suspected, appropriate cultures should be drawn and treatment with antibiotics and/or antivirals initiated. Urgent evaluation of patient and family history, ancillary testing such as EEG and imaging studies, and laboratory tests are important to determine whether the seizures are due to an acute symptomatic cause or an early-onset epilepsy, as the treatment approach differs for each.

 

Treatment of Acute Symptomatic Seizures

The primary goal of acute symptomatic seizure treatment is to rapidly titrate medications to abolish EEG seizures (including seizures without clear clinical correlate) with the goal of minimizing seizure burden. Acute symptomatic seizures usually begin within 24 to 48 hours after birth (or the acute event) and resolve within 2 to 4 days.65  Since seizures persist after the first dose of medication in more than 50% of neonates, it is important to continue to monitor by EEG for recurrent seizures for at least 24 hours. There are no guidelines to direct the selection of antiseizure medication. A single trial showed that phenobarbital and phenytoin (each given as a bolus dose of 20 mg/kg) had equal efficacy.74 Phenobarbital is the most commonly used initial medication in multiple international surveys and studies.15,75–77

Levetiracetam is a safe alternative that is used widely, although randomized efficacy data are lacking.15,78,79  A large randomized controlled trial comparing phenobarbital and levetiracetam for first-line treatment of neonatal seizures was recently completed (NeoLev2). Preliminary results demonstrate a significantly higher rate of seizure cessation with phenobarbital administration, but fewer side effects with levetiracetam administration. Final results are pending publication. Midazolam infusion is a reasonable alternative or add-on agent for refractory seizures and status epilepticus.80,81

Maintenance antiseizure medications can safely be discontinued in the neonatal period.82,83 For most patients, treatment for 24 to 72 hours after resolution of the acute symptomatic seizures is safe. For neonates without confirmed electrographic seizures (and an adequate monitoring period to capture the events and/or 24 hours seizure-free), maintenance dosing with antiseizure medications may not be necessary, as the likelihood of either nonepileptic events or resolution of seizures is high.

 

Treatment of Neonatal-Onset Epilepsy

Neonatal-onset epilepsy should be considered when a child has confirmed EEG seizures and an acute symptomatic cause is not found. The approach to treating epilepsy is different from the approach to treating acute symptomatic seizures: medications can be carefully titrated to maximally tolerated doses to determine efficacy and must be continued after discharge home even if seizures are well controlled with antiseizure medications. If no acute symptomatic cause of seizures is identified, a trial of pyridoxine (100 mg intravenously [IV] while EEG is recording), folinic acid (2.5 mg IV), and pyridoxal 5’-phosphate (60 mg/kg/day divided 3 times daily for 2–3 days) is warranted while genetic testing for underlying vitamin-dependent epilepsies is pending.84  For neonates with suspected KCNQ2/3 epilepsy (either benign or malignant), carbamazepine or oxcarbazepine is indicated as the first-line agent, with retigabine as an alternate agent.85 Neonates with focal seizures due to brain malformation may also respond to carbamazepine/oxcarbazepine. Table 7 lists the most commonly used antiseizure medications in neonates.

 

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Outcomes

Both animal and human data suggest that seizures can negatively impact the developing brain. As noted in the Pathophysiology section, preclinical studies suggest that the immature brain is more susceptible to seizures, and that seizures during early life may result in the development of inappropriate cerebral electrical pathways, which can beget epileptic networks later in life.86 Clinical data have been less definitive, as the link between poor outcomes and seizure is complicated by the underlying etiology and, possibly, interventions. Typical outcome measures assessed in neonatal seizure populations are neuroimaging, neurodevelopment, and occurrence of remote epilepsy. Several studies have shown a correlation between seizure burden and worsened magnetic resonance imaging (MRI) scores, particularly in neonates with HIE.4,21,63 The sheer presence of electrographic seizures is associated with acute MRI injury, with higher seizure burden correlating with more severe MRI injury. The association between seizures and MRI injury does not appear to vary with seizure type (electroclinical versus EEG only).21 In neonates with HIE, those with seizures are more likely to have cortical or near-total brain injuries seen on MRI as compared with those without seizures.21

Neurodevelopmental measures are consistently worse in children with a history of neonatal seizures compared with healthy peers or populations with neonatal brain injury without seizure. A prospectively assembled cohort with clinically diagnosed neonatal seizures followed for a median of 10 years in Newfoundland, Canada, has provided some of the most informative longitudinal data on such patients.8 Children born at term do better than children born prematurely, but increased rates of morbidity and mortality are present in both groups. During the 10-year follow up period, 16% of term neonates and 42% of preterm neonates died. Among survivors, impairments were seen in 39% of term neonates and 46% of preterm neonates at follow up. The most common impairments were epilepsy (27%), learning disabilities (27%), cerebral palsy (25%), and intellectual disability (20%). Predictors of poor outcome included severe encephalopathy, cerebral dysgenesis, complicated intraventricular hemorrhage, infections in preterm neonates, abnormal EEG, and requiring multiple antiseizure medications.

Other studies have found that the presence of neonatal seizures is associated with development of microcephaly, cerebral palsy, and failure to thrive, particularly in subsets of children with HIE.7 In addition, studies have suggested a relationship between seizure burden and developmental outcomes, with increasing seizure burden associated with worse neurodevelopmental outcome. A study of a heterogenous group of 56 term neonates with status epilepticus found that 75% had poor outcomes, defined as a developmental quotient less than 85 at 18 months of age or later.87  In a subset of patients with HIE, the duration of status epilepticus was predictive of poor neurodevelopmental outcomes, with neonates with poor neurodevelopmental outcomes having a median of 215 minutes of seizure and those with good neurodevelopmental outcomes having a median of 85 minutes of seizure. Others have studied the impact of neonatal seizures on intelligence quotients (IQ), finding that the presence of high clinical and/or EEG seizure burden in the setting of HIE was associated with substantially lower full-scale IQ scores (96.9 in no seizure, 82.7 in mild/moderate seizures, 67.2 in severe seizures), which was maintained after adjusting for MRI severity.47 Additionally, the absence of seizures has been shown to be an independent predictor of improved 18-month outcomes, defined as lack of death or disability, in asphyxiated neonates treated with hypothermia.88

The risk of epilepsy following neonatal seizures is also increased compared to the general population. A 2015 literature review found that in 4538 children with a history of neonatal seizures, 18% developed epilepsy, with nearly 70% having onset within the first year of life.6 Of those patients who developed epilepsy, 81% had an associated neurological impairment (18% with intellectual impairment, 6% with cerebral palsy, and 45% with both cerebral palsy and intellectual impairment). Additionally, population studies of children with epilepsy have shown that a history of neonatal seizures decreases the likelihood of later seizure freedom.89

 

Conclusion

The risk of brain injury is high in the perinatal and neonatal period. Seizures, which are the most common manifestation of cerebral injury during the neonatal period, are therefore relatively common. Neonatal seizures most often represent an acute cerebral injury, but can also be the result of a developmental brain abnormality or genetic epilepsy, and herald risk of continued or recurrent seizure. Although there is a long list of potential causes of neonatal seizures, by far the most common cause of seizure in the term neonate is HIE. The only intervention for this entity, therapeutic hypothermia, leads to improved neurodevelopmental outcomes and appears to lower the seizure burden. It is important for the practitioner to be mindful of potential other causes for neonatal seizures, particularly when there is no history of a clear asphyxial event, as these other etiologies may require etiology-specific treatments and may confer different prognoses. There are several populations considered high risk for neonatal seizures, and neuromonitoring with cEEG should be strongly considered in these patients given high rates of subclinical seizures.

When they occur, neonatal seizures are frequent, typically occur within the first 48 hours following insult, are often subclinical, and most often have a centrotemporal onset. Seizures are classified as clinical only, electroclinical, and EEG only depending on the presence and relationship of paroxysmal abnormal movements with defined changes on the EEG. Although traditionally the diagnosis of seizure was made on a clinical basis, it is now well established that the clinical diagnosis of seizures will both overestimate and underestimate the true incidence of seizure. As a result, EEG is required for the diagnosis of neonatal seizures. cEEG remains the gold standard for neonatal neuromonitoring, although adapted montages such as aEEG can act as a complementary bedside tool for more rapid seizure management.

The mainstays of treatment for neonatal seizures are phenobarbital, phenytoin, and benzodiazepines. These medications are the only treatments that have been studied in a randomized fashion with published results. None of these treatments are ideal, as they are at best moderately effective, all have side effects that can be dose-limiting, and their prolonged use may be harmful. Newer-generation medications such as levetiracetam are being used with increasing frequency, although safety and efficacy data are limited. Given the relationship between neonatal seizures and neurodevelopment, mortality, and the development of epilepsy, it is important that we continue to strive to find the ideal intervention strategy for these youngest and most vulnerable members of society.

 

Test your knowledge of this topic: Board Review Questions

References

1. Glass HC, Bonifacio SL, Peloquin S, et al. Neurocritical care for neonates. Neurocrit Care. 2010;12:421–9.

2. Ronen GM, Penney S, Andrews W. The epidemiology of clinical neonatal seizures in Newfoundland: a population-based study. J Pediatr. 1999;134:71–5.

3. Maartens IA, Wassenberg T, Buijs J, et al. Neurodevelopmental outcome in full-term newborns with refractory neonatal seizures. Acta Paediatr2012;101:e173–8.

4. Srinivasakumar P, Zempel J, Trivedi S, et al. Treating EEG seizures in hypoxic ischemic encephalopathy: a randomized controlled trial. Pediatrics2015;136:e1302–9.

5. Pavlidis E, Spagnoli C, Pelosi A, et al. Neonatal status epilepticus: differences between preterm and term newborns. Eur J Paediatr Neurol. 2015;19:314–9.

6. Pisani F, Facini C, Pavlidis E, et al. Epilepsy after neonatal seizures: literature review. Eur J Paediatr Neurol. 2015;19:6–14.

7. McBride MC, Laroia N, Guillet R. Electrographic seizures in neonates correlate with poor neurodevelopmental outcome. Neurology. 2000;55:506–13.

8. Ronen GM, Buckley D, Penney S, Streiner DL. Long-term prognosis in children with neonatal seizures: a population-based study. Neurology2007;69:1816–22.

9. Murray DM, Boylan GB, Ali I, et al. Defining the gap between electrographic seizure burden, clinical expression and staff recognition of neonatal seizures. Arch Dis Child Fetal Neonatal Ed. 2008;93:F187–91.

10. Vasudevan C, Levene M. Epidemiology and aetiology of neonatal seizures. Semin Fetal Neonatal Med. 2013;18:185–91.

11. Saliba RM, Annegers JF, Waller DK, et al. Incidence of neonatal seizures in Harris County, Texas, 1992-1994. Am J Epidemiol. 1999;150:763–9.

12. Sheth RD, Hobbs GR, Mullett M. Neonatal seizures: incidence, onset, and etiology by gestational age. J Perinatol. 1999;19:40–3.

13. Glass HC, Pham TN, Danielsen B, et al. Antenatal and intrapartum risk factors for seizures in term newborns: a population-based study, California 1998-2002. J Pediatr. 2009;154:24–28 e1.

14. Glass HC, Wu YW. Epidemiology of neonatal seizures. J Pediatr Neurol. 2009;7:13–7.

15. Glass HC, Shellhaas RA, Wusthoff CJ, et al. Contemporary profile of seizures in neonates: a prospective cohort study. J Pediatr. 2016;174:98–103.

16. Shellhaas RA, Wusthoff CJ, Tsuchida TN, et al. Profile of neonatal epilepsies: Characteristics of a prospective US cohort. Neurology. 2017;89:893–9.

17. Shellhaas RA, Chang T, Tsuchida T, et al. The American Clinical Neurophysiology Society’s Guideline on continuous electroencephalography monitoring in neonates. J Clin Neurophysiol. 2011;28:611–7.

18. Tekgul H, Gavreau K, Soul J, et al. The current etiologic profile and neurodevelopmental outcome of seizures in term newborn infants. Pediatrics2006;117:1270–80.

19. Yildiz EP, Tatli B, Ekici B, et al. Evaluation of etiologic and prognostic factors in neonatal convulsions. Pediatr Neurol. 2012;47:186–92.

20. Executive summary: Neonatal encephalopathy and neurologic outcome, second edition. Report of the American College of Obstetricians and Gynecologists’ Task Force on Neonatal Encephalopathy. Obstet Gynecol. 2014;123:896–901.

21. Glass HC, Nash KB, Bonifacio SL, et al. Seizures and magnetic resonance imaging-detected brain injury in newborns cooled for hypoxic-ischemic encephalopathy. J Pediatr. 2011;159:731–5 e1.

22. Lynch NE, Stevenson NJ, Livingstone V, et al. The temporal characteristics of seizures in neonatal hypoxic ischemic encephalopathy treated with hypothermia. Seizure. 2015;33:60–5.

23. Glass HC, Wusthoff CJ, Shellhaas RA, et al. Risk factors for EEG seizures in neonates treated with hypothermia: a multicenter cohort study. Neurology. 2014;82:1239–44.

24. Grunt S, Mazenauer L, Buerki SE, et al. Incidence and outcomes of symptomatic neonatal arterial ischemic stroke. Pediatrics. 2015;135:e1220–8.

25. Lee J, Croen LA, Backstrand KH, et al. Maternal and infant characteristics associated with perinatal arterial stroke in the infant. JAMA2005;293:723–9.

26. Harteman JC, Groenendaal F, Benders MJ, et al. Risk factors for perinatal arterial ischaemic stroke in full-term infants: a case-control study. Arch Dis Child Fetal Neonatal Ed. 2012;97:F411–6.

27. Simchen MJ, Goldstein G, Lubetsky A, et al. Factor v Leiden and antiphospholipid antibodies in either mothers or infants increase the risk for perinatal arterial ischemic stroke. Stroke. 2009;40:65–70.

28. deVeber G, Andrew M, Adams C, et al. Cerebral sinovenous thrombosis in children. N Engl J Med. 2001;345:417–23.

29. Pisani F, Barilli AL, Sisti L, et al. Preterm infants with video-EEG confirmed seizures: outcome at 30 months of age. Brain Dev. 2008;30:20–30.

30. Armstrong-Wells J, Johnston SC, Wu YW, et al. Prevalence and predictors of perinatal hemorrhagic stroke: results from the kaiser pediatric stroke study. Pediatrics. 2009;123:823–8.

31. Wu YW, Hamrick SE, Miller SP, et al. Intraventricular hemorrhage in term neonates caused by sinovenous thrombosis. Ann Neurol. 2003;54:123–6.

32. Grinton BE, Heron SE, Pelekanos JT, et al. Familial neonatal seizures in 36 families: clinical and genetic features correlate with outcome. Epilepsia2015;56:1071–80.

33. Pisano T, Numis AL, Heavin SB, et al. Early and effective treatment of KCNQ2 encephalopathy. Epilepsia. 2015;56:685–91.

34. Weckhuysen S, Mandelstam S, Suls A, et al. KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy. Ann Neurol2012;71:15–25

35. Moses-Kolko EL, Bogen D, Perel J, et al. Neonatal signs after late in utero exposure to serotonin reuptake inhibitors: literature review and

implications for clinical applications. JAMA. 2005;293:2372–83.

36. Haukland LU, Kutzsche S, Hovden IA, Stiris T. Neonatal seizures with reversible EEG changes after antenatal venlafaxine exposure. Acta

Paediatr. 2013;102:e524–6.

37. Jensen FE. Developmental factors regulating susceptibility to perinatal brain injury and seizures. Curr Opin Pediatr. 2006;18:628–33.

38. Jensen FE. Neonatal seizures: an update on mechanisms and management. Clin Perinatol. 2009;36:881–900.

39. Nardou R, Ferrari DC, Ben-Ari Y. Mechanisms and effects of seizures in the immature brain. Semin Fetal Neonatal Med. 2013;18:175–84.

40. Yager JY, Armstrong EA, Jaharus C, et al. Preventing hyperthermia decreases brain damage following neonatal hypoxic-ischemic seizures. Brain Res. 2004;1011:48–57.

41. Jiang M, Lee CL, Smith KL, Swann JW. Spine loss and other persistent alterations of hippocampal pyramidal cell dendrites in a model of early-onset

epilepsy. J Neurosci. 1998;18:8356–8.

42. McCabe BK, Silveira DC, Cilio MR, et al. Reduced neurogenesis after neonatal seizures. J Neurosci. 2001;21:2094–103.

43. Montgomery EM, Bardgett ME, Lall B, et al. Delayed neuronal loss after administration of intracerebrocentricular kainic acid to preweanling rats.

Brain Res Dev Brain Res. 1999;112:107–16.

44. Lynch M, Sayin U, Bownds J, et al. Long-term consequences of early postnatal seizures on hippocampal learning and plasticity. Eur J Neurosci.

2000;12:2252–64.

45. Holmes GL. The long-term effects of neonatal seizures. Clin Perinatol. 2009;36:901–14. 46. Miller SP, Weiss J, Barnwell A, et al. Seizure-associated brain injury in term newborns with perinatal asphyxia. Neurology. 2002;58:542–8.

47. Glass HC, Glidden D, Jeremy RJ, et al. Clinical neonatal seizures are independently associated with outcome in infants at risk for hypoxic-ischemic

brain injury. J Pediatr. 2009;155:318–23.

48. Fox CK, Glass HC, Sidney S, et al. Neonatal seizures triple the risk of a remote seizure after perinatal ischemic stroke. Neurology.

2016;86:2179–86.

49. Tsuchida TN, Wusthoff CJ, Shellhaas RA, et al. American clinical neurophysiology society standardized EEG terminology and categorization for

the description of continuous EEG monitoring in neonates: report of the American Clinical Neurophysiology Society critical care monitoring committee. J Clin Neurophysiol. 2013;30:161–73.

50. Volpe JJ. Neonatal seizures: current concepts and revised classification. Pediatrics. 1989;84:422–8.

51. Mizrahi EM, Kellaway P. Characterization and classification of neonatal seizures. Neurology. 1987;37:1837–44.

52. Nagarajan L, Palumbo L, Ghosh S. Classification of clinical semiology in epileptic seizures in neonates. Eur J Paediatr Neurol. 2012;16:118–25.

53. Malone A, Ryan CA, Fitzgerald A, et al. Interobserver agreement in neonatal seizure identification. Epilepsia. 2009;50:2097–101.

54. Guidelines on neonatal seizures. Geneva: World Health Organizatin; 2011.

55. Clancy RR, Legido A, Lewis D. Occult neonatal seizures. Epilepsia. 1988;29:256–61.

56. Connell J, Oozeer R, de Vries L, et al. Clinical and EEG response to anticonvulsants in neonatal seizures. Arch Dis Child. 1989;64:459–64.

57. Naim MY, Gaynor JW, Chen J, et al. Subclinical seizures identified by postoperative electroencephalographic monitoring are common after neonatal cardiac surgery. J Thorac Cardiovasc Surg. 2015;150:169–78.

58. Scher MS, Alvin J, Gaus L, et al. Uncoupling of EEG-clinical neonatal seizures after antiepileptic drug use. Pediatr Neurol. 2003;28:277–80.

59. Murray DM, Ryan CA, Boylan GB, et al. Prediction of seizures in asphyxiated neonates: correlation with continuous video-electroencephalographic

monitoring. Pediatrics. 2006;118:41–6.

60. Awal MA, Lai MM, Azemi G, et al. EEG background features that predict outcome in term neonates with hypoxic ischaemic encephalopathy: A structured review. Clin Neurophysiol. 2016;127:285–96.

61. Nash KB, Bonifacio SL, Glass HC, et al. Video-EEG monitoring in newborns with hypoxic-ischemic encephalopathy treated with hypothermia.

Neurology. 2011;76:556–62.

62. Hellström-Westas L, Liu X, Thoresen M, et al. Effect of hypothermia on amplitude-integrated electroencephalogram in infants with asphyxia.

Pediatrics. 2010;126:e131–9.

63. Shah DK, Wusthoff CJ, Clarke P, et al. Electrographic seizures are associated with brain injury in newborns undergoing therapeutic hypothermia. Arch Dis Child Fetal Neonatal Ed. 2014;99:F219–24.

64. Wusthoff CJ, Dlugos DJ, Gutierrez-Colina A, et al. Electrographic seizures during therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy. J Child Neurol. 2011;26:724–8.

65. Lynch NE, Stevenson NJ, Livingstone V, et al. The temporal evolution of electrographic seizure burden in neonatal hypoxic ischemic encephalopathy. Epilepsia. 2012;53:549–57.

66. Shah DK, Zempel J, Barton T, et al. Electrographic seizures in preterm infants during the first week of life are associated with cerebral injury. Pediatr Res. 2010;67:102–6.

67. Wusthoff CJ, Shellhaas RA, Clancy RR. Limitations of single-channel EEG on the forehead for neonatal seizure detection. J Perinatol. 2009;29:237–42.

68. de Vries LS, Hellstrom-Westas L. Role of cerebral function monitoring in the newborn. Arch Dis Child Fetal Neonatal Ed. 2005;90:F201–7.

69. Shellhaas RA, Soaita AI, Clancy RR. Sensitivity of amplitude-integrated electroencephalography for neonatal seizure detection. Pediatrics. 2007;20:770–7.

70. Mackay M, Lavery S, Shah DK, et al. Accuracy of bedside electroencephalographic monitoring in comparison with simultaneous continuous

conventional electroencephalography for seizure detection in term infants. Pediatrics. 2008;121:1146–54.

71. Shellhaas RA, Clancy RR. Characterization of neonatal seizures by conventional EEG and single-channel EEG. Clin Neurophysiol. 2007;118:2156–61.

72. Boylan G, Burgoyne L, Moore C, et al. An international survey of EEG use in the neonatal intensive care unit. Acta Paediatr. 2010;99:1150–5.

73. Shah NA, Van Meurs KP, Davis AS., Amplitude-integrated electroencephalography: a survey of practices in the United States. Am J Perinatol.

2015;32:755–60.

74. Scher MS, Stein AD, Painter MJ, et al. Phenobarbital compared with phenytoin for the treatment of neonatal seizures. N Engl J Med.

1999;341:485–9.

75. Glass HC, Kan J, Bonifacio SL, Ferriero DM. Neonatal seizures: treatment practices among term and preterm infants. Pediatr Neurol. 2012;46:111–5.

76. Bartha AI, Shen J, Katz KH, et al. Neonatal seizures: multicenter variability in current treatment practices. Pediatr Neurol. 2007;37:85–90.

77. Bassan H, Bental Y, Shany E, et al. Neonatal seizures: dilemmas in workup and management. Pediatr Neurol. 2008;38:415–21.

78. Sharpe CM, Capparelli EV, Mower A, et al. A seven-day study of the pharmacokinetics of intravenous levetiracetam in neonates: marked

changes in pharmacokinetics occur during the first week of life. Pediatr Res. 2012;72:43–9.

79. Merhar SL, Schibler KR, Sherwin CM, et al. Pharmacokinetics of levetiracetam in neonates with seizures. J Pediatr. 2011;159:152–4.

80. Castro Conde JR, Hernandez-Borges AA, Domenech Martinez E, et al. Midazolam in neonatal seizures with no response to phenobarbital.

Neurology. 2005;64:876–9.

81. Hirsch LJ, Emerson RG, Claassen J, et al. Continuous EEG monitoring and midazolam infusion for refractory nonconvulsive status epilepticus.

Neurology. 2001;57:1036–42.

82. Guillet R, Kwon J. Seizure recurrence and developmental disabilities after neonatal seizures: outcomes are unrelated to use of phenobarbital prophylaxis. J Child Neurol. 2007;22:389–95.

83. Hellstrom-Westas L, Blennow G, Lindroth M, et al. Low risk of seizure recurrence after early withdrawal of antiepileptic treatment in the neonatal

period. Arch Dis Child Fetal Neonatal Ed. 1995;72:F97–101.

84. Gospe SM Jr. Neonatal vitamin-responsive epileptic encephalopathies. Chang Gung Med J. 2010;33:1–12.

85. Numis AL, Angriman M, Sullivan JE, et al. KCNQ2 encephalopathy: delineation of the electroclinical phenotype and treatment response.

Neurology. 2014;82:368–70.

86. Holmes GL, Ben-Ari Y. The neurobiology and consequences of epilepsy in the developing brain. Pediatr Res. 2001;49:320–5.

87. van Rooij LG, de Vries LS, Handryastuti S, et al. Neurodevelopmental outcome in term infants with status epilepticus detected with amplitude-

integrated electroencephalography. Pediatrics. 2007;120:e354–63.

88. Wyatt JS, Gluckman PD, Liu PY, et al. Determinants of outcomes after head cooling for neonatal encephalopathy. Pediatrics. 2007;119:912–21.

89. Camfield C, Camfield P, Gordon K, et al. Outcome of childhood epilepsy: a population-based study with a simple predictive scoring system for those treated with medication. J Pediatr. 1993;122:861–8.

References

1. Glass HC, Bonifacio SL, Peloquin S, et al. Neurocritical care for neonates. Neurocrit Care. 2010;12:421–9.

2. Ronen GM, Penney S, Andrews W. The epidemiology of clinical neonatal seizures in Newfoundland: a population-based study. J Pediatr. 1999;134:71–5.

3. Maartens IA, Wassenberg T, Buijs J, et al. Neurodevelopmental outcome in full-term newborns with refractory neonatal seizures. Acta Paediatr2012;101:e173–8.

4. Srinivasakumar P, Zempel J, Trivedi S, et al. Treating EEG seizures in hypoxic ischemic encephalopathy: a randomized controlled trial. Pediatrics2015;136:e1302–9.

5. Pavlidis E, Spagnoli C, Pelosi A, et al. Neonatal status epilepticus: differences between preterm and term newborns. Eur J Paediatr Neurol. 2015;19:314–9.

6. Pisani F, Facini C, Pavlidis E, et al. Epilepsy after neonatal seizures: literature review. Eur J Paediatr Neurol. 2015;19:6–14.

7. McBride MC, Laroia N, Guillet R. Electrographic seizures in neonates correlate with poor neurodevelopmental outcome. Neurology. 2000;55:506–13.

8. Ronen GM, Buckley D, Penney S, Streiner DL. Long-term prognosis in children with neonatal seizures: a population-based study. Neurology2007;69:1816–22.

9. Murray DM, Boylan GB, Ali I, et al. Defining the gap between electrographic seizure burden, clinical expression and staff recognition of neonatal seizures. Arch Dis Child Fetal Neonatal Ed. 2008;93:F187–91.

10. Vasudevan C, Levene M. Epidemiology and aetiology of neonatal seizures. Semin Fetal Neonatal Med. 2013;18:185–91.

11. Saliba RM, Annegers JF, Waller DK, et al. Incidence of neonatal seizures in Harris County, Texas, 1992-1994. Am J Epidemiol. 1999;150:763–9.

12. Sheth RD, Hobbs GR, Mullett M. Neonatal seizures: incidence, onset, and etiology by gestational age. J Perinatol. 1999;19:40–3.

13. Glass HC, Pham TN, Danielsen B, et al. Antenatal and intrapartum risk factors for seizures in term newborns: a population-based study, California 1998-2002. J Pediatr. 2009;154:24–28 e1.

14. Glass HC, Wu YW. Epidemiology of neonatal seizures. J Pediatr Neurol. 2009;7:13–7.

15. Glass HC, Shellhaas RA, Wusthoff CJ, et al. Contemporary profile of seizures in neonates: a prospective cohort study. J Pediatr. 2016;174:98–103.

16. Shellhaas RA, Wusthoff CJ, Tsuchida TN, et al. Profile of neonatal epilepsies: Characteristics of a prospective US cohort. Neurology. 2017;89:893–9.

17. Shellhaas RA, Chang T, Tsuchida T, et al. The American Clinical Neurophysiology Society’s Guideline on continuous electroencephalography monitoring in neonates. J Clin Neurophysiol. 2011;28:611–7.

18. Tekgul H, Gavreau K, Soul J, et al. The current etiologic profile and neurodevelopmental outcome of seizures in term newborn infants. Pediatrics2006;117:1270–80.

19. Yildiz EP, Tatli B, Ekici B, et al. Evaluation of etiologic and prognostic factors in neonatal convulsions. Pediatr Neurol. 2012;47:186–92.

20. Executive summary: Neonatal encephalopathy and neurologic outcome, second edition. Report of the American College of Obstetricians and Gynecologists’ Task Force on Neonatal Encephalopathy. Obstet Gynecol. 2014;123:896–901.

21. Glass HC, Nash KB, Bonifacio SL, et al. Seizures and magnetic resonance imaging-detected brain injury in newborns cooled for hypoxic-ischemic encephalopathy. J Pediatr. 2011;159:731–5 e1.

22. Lynch NE, Stevenson NJ, Livingstone V, et al. The temporal characteristics of seizures in neonatal hypoxic ischemic encephalopathy treated with hypothermia. Seizure. 2015;33:60–5.

23. Glass HC, Wusthoff CJ, Shellhaas RA, et al. Risk factors for EEG seizures in neonates treated with hypothermia: a multicenter cohort study. Neurology. 2014;82:1239–44.

24. Grunt S, Mazenauer L, Buerki SE, et al. Incidence and outcomes of symptomatic neonatal arterial ischemic stroke. Pediatrics. 2015;135:e1220–8.

25. Lee J, Croen LA, Backstrand KH, et al. Maternal and infant characteristics associated with perinatal arterial stroke in the infant. JAMA2005;293:723–9.

26. Harteman JC, Groenendaal F, Benders MJ, et al. Risk factors for perinatal arterial ischaemic stroke in full-term infants: a case-control study. Arch Dis Child Fetal Neonatal Ed. 2012;97:F411–6.

27. Simchen MJ, Goldstein G, Lubetsky A, et al. Factor v Leiden and antiphospholipid antibodies in either mothers or infants increase the risk for perinatal arterial ischemic stroke. Stroke. 2009;40:65–70.

28. deVeber G, Andrew M, Adams C, et al. Cerebral sinovenous thrombosis in children. N Engl J Med. 2001;345:417–23.

29. Pisani F, Barilli AL, Sisti L, et al. Preterm infants with video-EEG confirmed seizures: outcome at 30 months of age. Brain Dev. 2008;30:20–30.

30. Armstrong-Wells J, Johnston SC, Wu YW, et al. Prevalence and predictors of perinatal hemorrhagic stroke: results from the kaiser pediatric stroke study. Pediatrics. 2009;123:823–8.

31. Wu YW, Hamrick SE, Miller SP, et al. Intraventricular hemorrhage in term neonates caused by sinovenous thrombosis. Ann Neurol. 2003;54:123–6.

32. Grinton BE, Heron SE, Pelekanos JT, et al. Familial neonatal seizures in 36 families: clinical and genetic features correlate with outcome. Epilepsia2015;56:1071–80.

33. Pisano T, Numis AL, Heavin SB, et al. Early and effective treatment of KCNQ2 encephalopathy. Epilepsia. 2015;56:685–91.

34. Weckhuysen S, Mandelstam S, Suls A, et al. KCNQ2 encephalopathy: emerging phenotype of a neonatal epileptic encephalopathy. Ann Neurol2012;71:15–25

35. Moses-Kolko EL, Bogen D, Perel J, et al. Neonatal signs after late in utero exposure to serotonin reuptake inhibitors: literature review and

implications for clinical applications. JAMA. 2005;293:2372–83.

36. Haukland LU, Kutzsche S, Hovden IA, Stiris T. Neonatal seizures with reversible EEG changes after antenatal venlafaxine exposure. Acta

Paediatr. 2013;102:e524–6.

37. Jensen FE. Developmental factors regulating susceptibility to perinatal brain injury and seizures. Curr Opin Pediatr. 2006;18:628–33.

38. Jensen FE. Neonatal seizures: an update on mechanisms and management. Clin Perinatol. 2009;36:881–900.

39. Nardou R, Ferrari DC, Ben-Ari Y. Mechanisms and effects of seizures in the immature brain. Semin Fetal Neonatal Med. 2013;18:175–84.

40. Yager JY, Armstrong EA, Jaharus C, et al. Preventing hyperthermia decreases brain damage following neonatal hypoxic-ischemic seizures. Brain Res. 2004;1011:48–57.

41. Jiang M, Lee CL, Smith KL, Swann JW. Spine loss and other persistent alterations of hippocampal pyramidal cell dendrites in a model of early-onset

epilepsy. J Neurosci. 1998;18:8356–8.

42. McCabe BK, Silveira DC, Cilio MR, et al. Reduced neurogenesis after neonatal seizures. J Neurosci. 2001;21:2094–103.

43. Montgomery EM, Bardgett ME, Lall B, et al. Delayed neuronal loss after administration of intracerebrocentricular kainic acid to preweanling rats.

Brain Res Dev Brain Res. 1999;112:107–16.

44. Lynch M, Sayin U, Bownds J, et al. Long-term consequences of early postnatal seizures on hippocampal learning and plasticity. Eur J Neurosci.

2000;12:2252–64.

45. Holmes GL. The long-term effects of neonatal seizures. Clin Perinatol. 2009;36:901–14. 46. Miller SP, Weiss J, Barnwell A, et al. Seizure-associated brain injury in term newborns with perinatal asphyxia. Neurology. 2002;58:542–8.

47. Glass HC, Glidden D, Jeremy RJ, et al. Clinical neonatal seizures are independently associated with outcome in infants at risk for hypoxic-ischemic

brain injury. J Pediatr. 2009;155:318–23.

48. Fox CK, Glass HC, Sidney S, et al. Neonatal seizures triple the risk of a remote seizure after perinatal ischemic stroke. Neurology.

2016;86:2179–86.

49. Tsuchida TN, Wusthoff CJ, Shellhaas RA, et al. American clinical neurophysiology society standardized EEG terminology and categorization for

the description of continuous EEG monitoring in neonates: report of the American Clinical Neurophysiology Society critical care monitoring committee. J Clin Neurophysiol. 2013;30:161–73.

50. Volpe JJ. Neonatal seizures: current concepts and revised classification. Pediatrics. 1989;84:422–8.

51. Mizrahi EM, Kellaway P. Characterization and classification of neonatal seizures. Neurology. 1987;37:1837–44.

52. Nagarajan L, Palumbo L, Ghosh S. Classification of clinical semiology in epileptic seizures in neonates. Eur J Paediatr Neurol. 2012;16:118–25.

53. Malone A, Ryan CA, Fitzgerald A, et al. Interobserver agreement in neonatal seizure identification. Epilepsia. 2009;50:2097–101.

54. Guidelines on neonatal seizures. Geneva: World Health Organizatin; 2011.

55. Clancy RR, Legido A, Lewis D. Occult neonatal seizures. Epilepsia. 1988;29:256–61.

56. Connell J, Oozeer R, de Vries L, et al. Clinical and EEG response to anticonvulsants in neonatal seizures. Arch Dis Child. 1989;64:459–64.

57. Naim MY, Gaynor JW, Chen J, et al. Subclinical seizures identified by postoperative electroencephalographic monitoring are common after neonatal cardiac surgery. J Thorac Cardiovasc Surg. 2015;150:169–78.

58. Scher MS, Alvin J, Gaus L, et al. Uncoupling of EEG-clinical neonatal seizures after antiepileptic drug use. Pediatr Neurol. 2003;28:277–80.

59. Murray DM, Ryan CA, Boylan GB, et al. Prediction of seizures in asphyxiated neonates: correlation with continuous video-electroencephalographic

monitoring. Pediatrics. 2006;118:41–6.

60. Awal MA, Lai MM, Azemi G, et al. EEG background features that predict outcome in term neonates with hypoxic ischaemic encephalopathy: A structured review. Clin Neurophysiol. 2016;127:285–96.

61. Nash KB, Bonifacio SL, Glass HC, et al. Video-EEG monitoring in newborns with hypoxic-ischemic encephalopathy treated with hypothermia.

Neurology. 2011;76:556–62.

62. Hellström-Westas L, Liu X, Thoresen M, et al. Effect of hypothermia on amplitude-integrated electroencephalogram in infants with asphyxia.

Pediatrics. 2010;126:e131–9.

63. Shah DK, Wusthoff CJ, Clarke P, et al. Electrographic seizures are associated with brain injury in newborns undergoing therapeutic hypothermia. Arch Dis Child Fetal Neonatal Ed. 2014;99:F219–24.

64. Wusthoff CJ, Dlugos DJ, Gutierrez-Colina A, et al. Electrographic seizures during therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy. J Child Neurol. 2011;26:724–8.

65. Lynch NE, Stevenson NJ, Livingstone V, et al. The temporal evolution of electrographic seizure burden in neonatal hypoxic ischemic encephalopathy. Epilepsia. 2012;53:549–57.

66. Shah DK, Zempel J, Barton T, et al. Electrographic seizures in preterm infants during the first week of life are associated with cerebral injury. Pediatr Res. 2010;67:102–6.

67. Wusthoff CJ, Shellhaas RA, Clancy RR. Limitations of single-channel EEG on the forehead for neonatal seizure detection. J Perinatol. 2009;29:237–42.

68. de Vries LS, Hellstrom-Westas L. Role of cerebral function monitoring in the newborn. Arch Dis Child Fetal Neonatal Ed. 2005;90:F201–7.

69. Shellhaas RA, Soaita AI, Clancy RR. Sensitivity of amplitude-integrated electroencephalography for neonatal seizure detection. Pediatrics. 2007;20:770–7.

70. Mackay M, Lavery S, Shah DK, et al. Accuracy of bedside electroencephalographic monitoring in comparison with simultaneous continuous

conventional electroencephalography for seizure detection in term infants. Pediatrics. 2008;121:1146–54.

71. Shellhaas RA, Clancy RR. Characterization of neonatal seizures by conventional EEG and single-channel EEG. Clin Neurophysiol. 2007;118:2156–61.

72. Boylan G, Burgoyne L, Moore C, et al. An international survey of EEG use in the neonatal intensive care unit. Acta Paediatr. 2010;99:1150–5.

73. Shah NA, Van Meurs KP, Davis AS., Amplitude-integrated electroencephalography: a survey of practices in the United States. Am J Perinatol.

2015;32:755–60.

74. Scher MS, Stein AD, Painter MJ, et al. Phenobarbital compared with phenytoin for the treatment of neonatal seizures. N Engl J Med.

1999;341:485–9.

75. Glass HC, Kan J, Bonifacio SL, Ferriero DM. Neonatal seizures: treatment practices among term and preterm infants. Pediatr Neurol. 2012;46:111–5.

76. Bartha AI, Shen J, Katz KH, et al. Neonatal seizures: multicenter variability in current treatment practices. Pediatr Neurol. 2007;37:85–90.

77. Bassan H, Bental Y, Shany E, et al. Neonatal seizures: dilemmas in workup and management. Pediatr Neurol. 2008;38:415–21.

78. Sharpe CM, Capparelli EV, Mower A, et al. A seven-day study of the pharmacokinetics of intravenous levetiracetam in neonates: marked

changes in pharmacokinetics occur during the first week of life. Pediatr Res. 2012;72:43–9.

79. Merhar SL, Schibler KR, Sherwin CM, et al. Pharmacokinetics of levetiracetam in neonates with seizures. J Pediatr. 2011;159:152–4.

80. Castro Conde JR, Hernandez-Borges AA, Domenech Martinez E, et al. Midazolam in neonatal seizures with no response to phenobarbital.

Neurology. 2005;64:876–9.

81. Hirsch LJ, Emerson RG, Claassen J, et al. Continuous EEG monitoring and midazolam infusion for refractory nonconvulsive status epilepticus.

Neurology. 2001;57:1036–42.

82. Guillet R, Kwon J. Seizure recurrence and developmental disabilities after neonatal seizures: outcomes are unrelated to use of phenobarbital prophylaxis. J Child Neurol. 2007;22:389–95.

83. Hellstrom-Westas L, Blennow G, Lindroth M, et al. Low risk of seizure recurrence after early withdrawal of antiepileptic treatment in the neonatal

period. Arch Dis Child Fetal Neonatal Ed. 1995;72:F97–101.

84. Gospe SM Jr. Neonatal vitamin-responsive epileptic encephalopathies. Chang Gung Med J. 2010;33:1–12.

85. Numis AL, Angriman M, Sullivan JE, et al. KCNQ2 encephalopathy: delineation of the electroclinical phenotype and treatment response.

Neurology. 2014;82:368–70.

86. Holmes GL, Ben-Ari Y. The neurobiology and consequences of epilepsy in the developing brain. Pediatr Res. 2001;49:320–5.

87. van Rooij LG, de Vries LS, Handryastuti S, et al. Neurodevelopmental outcome in term infants with status epilepticus detected with amplitude-

integrated electroencephalography. Pediatrics. 2007;120:e354–63.

88. Wyatt JS, Gluckman PD, Liu PY, et al. Determinants of outcomes after head cooling for neonatal encephalopathy. Pediatrics. 2007;119:912–21.

89. Camfield C, Camfield P, Gordon K, et al. Outcome of childhood epilepsy: a population-based study with a simple predictive scoring system for those treated with medication. J Pediatr. 1993;122:861–8.

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SCC survival remains poor in epidermolysis bullosa

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– Median survival among patients with generalized severe recessive dystrophic epidermolysis bullosa (RDEB-GS) after a first diagnosis of mucocutaneous squamous cell carcinoma (SCC) was 2.4 years in an observational, retrospective study.

The study, conducted at St. Thomas’ Hospital and Great Ormond Street Hospital in London, was a review of all individuals with EB who had developed the skin cancer over a 28-year period, from 1991 to 2019.

A total of 44 subjects were identified who together had 221 primary SCCs. Considering all study subjects, the median age at first diagnosis of SCC was 32.6 years, with a mean of five tumors present. Almost 40% had metastatic tumors, and of the 57% who died during the observation period, 88% of deaths were attributable to the SCC.

“EB-associated SCCs differ from those in the general population,” the study’s investigators wrote in a poster presented at the EB World Congress, organized by the Dystrophic Epidermolysis Bullosa Association (debra). “They affect a younger age group, and there are often multiple primaries,” they added. Furthermore, “they behave aggressively and metastasize early despite being well differentiated.”

Most (31) of the study participants had RDEB-GS and tended to develop their first SCC at a younger age than the group overall, at a median of 29.5 years (compared with 32.6 years for the overall group). The mean number of tumors was 5.8 among those with RDEB-GS, with over half (53.4%) of the SCCs being well differentiated and located on the hands, upper arms, feet, and lower legs. Median survival after a first diagnosis in this group was 2.4 years. The short survival after a first diagnosis of SCC “underscores the poor prognosis in this group,” the researchers wrote.

“As the largest cohort of EB SCC patients with comprehensive data regarding clinical course and management to date, our data reinforce the need for regular clinical surveillance for SCCs in EB patients,” the team concluded. This surveillance should start in adolescence for those with the severe generalized RDEB subtype, they advise, and from the third or fourth decade for other at-risk groups.

These data also highlight “the pressing need for more effective treatments,” the investigators wrote. Most (86.4%) of the SCCs among the patients in the study had been surgically removed by wide local excision, with a few patients undergoing lymph node dissection, radiotherapy, chemotherapy, electrochemotherapy, or receiving targeted cancer therapies such as erlotinib, cetuximab, or cemiplimab.

Surgery may not be an option for many patients, Jemima Mellerio, MD explained in an oral presentation at the meeting. Dr. Mellerio, a consultant dermatologist and chief of St John’s Institute of Dermatology at Guy’s & St. Thomas’ NHS Foundation, London, noted that the location of the tumor was important, as sometimes it was not physically possible to excise it completely.

Guidelines on how to manage SCCs in patients with EB were published a few years ago (Br J Dermatol. 2016;174:56-67) and noted that the clinical detection of SCCs could be difficult because of chronic wound ulceration in these patients. The “possibility of malignancy should be borne in mind, with suspicious lesions biopsied for histological evaluation,” the document states. Evidence for many of the nonsurgical options – radiotherapy, conventional chemotherapy, biologic therapies – was poor, according to the guidelines, and effective nonsurgical options are still desperately needed.



Several avenues of research are being investigated, Dr. Mellerio noted, such as targeting the fibrotic process and perhaps using a micro-RNA inhibitor to stop the upregulation of certain microRNAs in fibroblasts. Targeting inflammatory mechanisms such as thrombospondin 1, which can lead to elevated levels of tumor necrosis factor–beta and contribute to extracellular matrix stiffness, also is under investigation. Raised interleukin-6 may be another target to consider.

Research shows that similar genes are mutated in EB-related and ultraviolet-related SCCs, Dr. Mellerio said. Indeed, mutations in HRAS, NOTCH1, TP53, and CDKN2A have been reported, but mutations in these genes occur much earlier in life in patients with EB. “Something else is going on,” she added, commenting that researchers are looking at apolipoprotein B editing complex (APOBEC) enzymes, which modulate DNA and can cause “particular types of genetic changes in EB cancers.”

One investigator who is studying the genetics of EB SCCs and how APOBEC enzymes might be involved is Andrew South, PhD, an associate professor at Thomas Jefferson University, Philadelphia. APOBEC enzymes are a very prominent source of mutations in RDEB. These mutations are found in 10%-20% of squamous cell carcinomas not associated with RDEB, and 80%-90% of head and neck cancers, he said during a separate talk at the meeting.

Dr. South observed that “RDEB squamous cell carcinoma does not show any particular somatic mutation or upregulation or downregulation of genes that differentiates it from other squamous cell carcinomas, which might be disappointing on the front of it, but actually it does mean that precision therapies that have been developed for other squamous cell carcinomas have application in RDEB.”

RDEB SCC shows the greatest similarity with head and neck SCC, Dr. South said. He also stressed that fibrosis is a major driver of cancer development, SCC tumors in RDEB are homogenous, and that frontline therapy is still unclear.

What is clear, however, is that interdisciplinary management of patients is crucial, said Leena Bruckner-Tuderman, MD, professor and chair of the department of dermatology at the University Medical Center, Albert Ludwig University of Freiburg, Germany.

“In severe RDEB, metastatic SCC is the leading cause of death at a young age. We need monitoring, careful diagnostics, and multidisciplinary treatment,” Dr. Bruckner-Tuderman said. The latter should be delivered by a coordinated team that consists of dermatologists, surgeons, radiologists, oncologists, pathologists, geneticists, and (molecular) tumor boards, she advised.

The study had no commercial funding. Dr. Mellerio disclosed financial relationships with Castle Creek Pharmaceuticals and ProQR Therapeutics, and acted as an unpaid advisor to Helpberby Therapeutics. Dr. South disclosed financial relationships with Krystal Biotech Inc. and Amryt Genetics and has been an advisory board member for Abeona Therapeutics and Sanofi Genzyme. Dr. Bruckner-Tuderman disclosed receiving grants or research support from Constant Pharmaceuticals/Tarix Orphan.

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– Median survival among patients with generalized severe recessive dystrophic epidermolysis bullosa (RDEB-GS) after a first diagnosis of mucocutaneous squamous cell carcinoma (SCC) was 2.4 years in an observational, retrospective study.

The study, conducted at St. Thomas’ Hospital and Great Ormond Street Hospital in London, was a review of all individuals with EB who had developed the skin cancer over a 28-year period, from 1991 to 2019.

A total of 44 subjects were identified who together had 221 primary SCCs. Considering all study subjects, the median age at first diagnosis of SCC was 32.6 years, with a mean of five tumors present. Almost 40% had metastatic tumors, and of the 57% who died during the observation period, 88% of deaths were attributable to the SCC.

“EB-associated SCCs differ from those in the general population,” the study’s investigators wrote in a poster presented at the EB World Congress, organized by the Dystrophic Epidermolysis Bullosa Association (debra). “They affect a younger age group, and there are often multiple primaries,” they added. Furthermore, “they behave aggressively and metastasize early despite being well differentiated.”

Most (31) of the study participants had RDEB-GS and tended to develop their first SCC at a younger age than the group overall, at a median of 29.5 years (compared with 32.6 years for the overall group). The mean number of tumors was 5.8 among those with RDEB-GS, with over half (53.4%) of the SCCs being well differentiated and located on the hands, upper arms, feet, and lower legs. Median survival after a first diagnosis in this group was 2.4 years. The short survival after a first diagnosis of SCC “underscores the poor prognosis in this group,” the researchers wrote.

“As the largest cohort of EB SCC patients with comprehensive data regarding clinical course and management to date, our data reinforce the need for regular clinical surveillance for SCCs in EB patients,” the team concluded. This surveillance should start in adolescence for those with the severe generalized RDEB subtype, they advise, and from the third or fourth decade for other at-risk groups.

These data also highlight “the pressing need for more effective treatments,” the investigators wrote. Most (86.4%) of the SCCs among the patients in the study had been surgically removed by wide local excision, with a few patients undergoing lymph node dissection, radiotherapy, chemotherapy, electrochemotherapy, or receiving targeted cancer therapies such as erlotinib, cetuximab, or cemiplimab.

Surgery may not be an option for many patients, Jemima Mellerio, MD explained in an oral presentation at the meeting. Dr. Mellerio, a consultant dermatologist and chief of St John’s Institute of Dermatology at Guy’s & St. Thomas’ NHS Foundation, London, noted that the location of the tumor was important, as sometimes it was not physically possible to excise it completely.

Guidelines on how to manage SCCs in patients with EB were published a few years ago (Br J Dermatol. 2016;174:56-67) and noted that the clinical detection of SCCs could be difficult because of chronic wound ulceration in these patients. The “possibility of malignancy should be borne in mind, with suspicious lesions biopsied for histological evaluation,” the document states. Evidence for many of the nonsurgical options – radiotherapy, conventional chemotherapy, biologic therapies – was poor, according to the guidelines, and effective nonsurgical options are still desperately needed.



Several avenues of research are being investigated, Dr. Mellerio noted, such as targeting the fibrotic process and perhaps using a micro-RNA inhibitor to stop the upregulation of certain microRNAs in fibroblasts. Targeting inflammatory mechanisms such as thrombospondin 1, which can lead to elevated levels of tumor necrosis factor–beta and contribute to extracellular matrix stiffness, also is under investigation. Raised interleukin-6 may be another target to consider.

Research shows that similar genes are mutated in EB-related and ultraviolet-related SCCs, Dr. Mellerio said. Indeed, mutations in HRAS, NOTCH1, TP53, and CDKN2A have been reported, but mutations in these genes occur much earlier in life in patients with EB. “Something else is going on,” she added, commenting that researchers are looking at apolipoprotein B editing complex (APOBEC) enzymes, which modulate DNA and can cause “particular types of genetic changes in EB cancers.”

One investigator who is studying the genetics of EB SCCs and how APOBEC enzymes might be involved is Andrew South, PhD, an associate professor at Thomas Jefferson University, Philadelphia. APOBEC enzymes are a very prominent source of mutations in RDEB. These mutations are found in 10%-20% of squamous cell carcinomas not associated with RDEB, and 80%-90% of head and neck cancers, he said during a separate talk at the meeting.

Dr. South observed that “RDEB squamous cell carcinoma does not show any particular somatic mutation or upregulation or downregulation of genes that differentiates it from other squamous cell carcinomas, which might be disappointing on the front of it, but actually it does mean that precision therapies that have been developed for other squamous cell carcinomas have application in RDEB.”

RDEB SCC shows the greatest similarity with head and neck SCC, Dr. South said. He also stressed that fibrosis is a major driver of cancer development, SCC tumors in RDEB are homogenous, and that frontline therapy is still unclear.

What is clear, however, is that interdisciplinary management of patients is crucial, said Leena Bruckner-Tuderman, MD, professor and chair of the department of dermatology at the University Medical Center, Albert Ludwig University of Freiburg, Germany.

“In severe RDEB, metastatic SCC is the leading cause of death at a young age. We need monitoring, careful diagnostics, and multidisciplinary treatment,” Dr. Bruckner-Tuderman said. The latter should be delivered by a coordinated team that consists of dermatologists, surgeons, radiologists, oncologists, pathologists, geneticists, and (molecular) tumor boards, she advised.

The study had no commercial funding. Dr. Mellerio disclosed financial relationships with Castle Creek Pharmaceuticals and ProQR Therapeutics, and acted as an unpaid advisor to Helpberby Therapeutics. Dr. South disclosed financial relationships with Krystal Biotech Inc. and Amryt Genetics and has been an advisory board member for Abeona Therapeutics and Sanofi Genzyme. Dr. Bruckner-Tuderman disclosed receiving grants or research support from Constant Pharmaceuticals/Tarix Orphan.

– Median survival among patients with generalized severe recessive dystrophic epidermolysis bullosa (RDEB-GS) after a first diagnosis of mucocutaneous squamous cell carcinoma (SCC) was 2.4 years in an observational, retrospective study.

The study, conducted at St. Thomas’ Hospital and Great Ormond Street Hospital in London, was a review of all individuals with EB who had developed the skin cancer over a 28-year period, from 1991 to 2019.

A total of 44 subjects were identified who together had 221 primary SCCs. Considering all study subjects, the median age at first diagnosis of SCC was 32.6 years, with a mean of five tumors present. Almost 40% had metastatic tumors, and of the 57% who died during the observation period, 88% of deaths were attributable to the SCC.

“EB-associated SCCs differ from those in the general population,” the study’s investigators wrote in a poster presented at the EB World Congress, organized by the Dystrophic Epidermolysis Bullosa Association (debra). “They affect a younger age group, and there are often multiple primaries,” they added. Furthermore, “they behave aggressively and metastasize early despite being well differentiated.”

Most (31) of the study participants had RDEB-GS and tended to develop their first SCC at a younger age than the group overall, at a median of 29.5 years (compared with 32.6 years for the overall group). The mean number of tumors was 5.8 among those with RDEB-GS, with over half (53.4%) of the SCCs being well differentiated and located on the hands, upper arms, feet, and lower legs. Median survival after a first diagnosis in this group was 2.4 years. The short survival after a first diagnosis of SCC “underscores the poor prognosis in this group,” the researchers wrote.

“As the largest cohort of EB SCC patients with comprehensive data regarding clinical course and management to date, our data reinforce the need for regular clinical surveillance for SCCs in EB patients,” the team concluded. This surveillance should start in adolescence for those with the severe generalized RDEB subtype, they advise, and from the third or fourth decade for other at-risk groups.

These data also highlight “the pressing need for more effective treatments,” the investigators wrote. Most (86.4%) of the SCCs among the patients in the study had been surgically removed by wide local excision, with a few patients undergoing lymph node dissection, radiotherapy, chemotherapy, electrochemotherapy, or receiving targeted cancer therapies such as erlotinib, cetuximab, or cemiplimab.

Surgery may not be an option for many patients, Jemima Mellerio, MD explained in an oral presentation at the meeting. Dr. Mellerio, a consultant dermatologist and chief of St John’s Institute of Dermatology at Guy’s & St. Thomas’ NHS Foundation, London, noted that the location of the tumor was important, as sometimes it was not physically possible to excise it completely.

Guidelines on how to manage SCCs in patients with EB were published a few years ago (Br J Dermatol. 2016;174:56-67) and noted that the clinical detection of SCCs could be difficult because of chronic wound ulceration in these patients. The “possibility of malignancy should be borne in mind, with suspicious lesions biopsied for histological evaluation,” the document states. Evidence for many of the nonsurgical options – radiotherapy, conventional chemotherapy, biologic therapies – was poor, according to the guidelines, and effective nonsurgical options are still desperately needed.



Several avenues of research are being investigated, Dr. Mellerio noted, such as targeting the fibrotic process and perhaps using a micro-RNA inhibitor to stop the upregulation of certain microRNAs in fibroblasts. Targeting inflammatory mechanisms such as thrombospondin 1, which can lead to elevated levels of tumor necrosis factor–beta and contribute to extracellular matrix stiffness, also is under investigation. Raised interleukin-6 may be another target to consider.

Research shows that similar genes are mutated in EB-related and ultraviolet-related SCCs, Dr. Mellerio said. Indeed, mutations in HRAS, NOTCH1, TP53, and CDKN2A have been reported, but mutations in these genes occur much earlier in life in patients with EB. “Something else is going on,” she added, commenting that researchers are looking at apolipoprotein B editing complex (APOBEC) enzymes, which modulate DNA and can cause “particular types of genetic changes in EB cancers.”

One investigator who is studying the genetics of EB SCCs and how APOBEC enzymes might be involved is Andrew South, PhD, an associate professor at Thomas Jefferson University, Philadelphia. APOBEC enzymes are a very prominent source of mutations in RDEB. These mutations are found in 10%-20% of squamous cell carcinomas not associated with RDEB, and 80%-90% of head and neck cancers, he said during a separate talk at the meeting.

Dr. South observed that “RDEB squamous cell carcinoma does not show any particular somatic mutation or upregulation or downregulation of genes that differentiates it from other squamous cell carcinomas, which might be disappointing on the front of it, but actually it does mean that precision therapies that have been developed for other squamous cell carcinomas have application in RDEB.”

RDEB SCC shows the greatest similarity with head and neck SCC, Dr. South said. He also stressed that fibrosis is a major driver of cancer development, SCC tumors in RDEB are homogenous, and that frontline therapy is still unclear.

What is clear, however, is that interdisciplinary management of patients is crucial, said Leena Bruckner-Tuderman, MD, professor and chair of the department of dermatology at the University Medical Center, Albert Ludwig University of Freiburg, Germany.

“In severe RDEB, metastatic SCC is the leading cause of death at a young age. We need monitoring, careful diagnostics, and multidisciplinary treatment,” Dr. Bruckner-Tuderman said. The latter should be delivered by a coordinated team that consists of dermatologists, surgeons, radiologists, oncologists, pathologists, geneticists, and (molecular) tumor boards, she advised.

The study had no commercial funding. Dr. Mellerio disclosed financial relationships with Castle Creek Pharmaceuticals and ProQR Therapeutics, and acted as an unpaid advisor to Helpberby Therapeutics. Dr. South disclosed financial relationships with Krystal Biotech Inc. and Amryt Genetics and has been an advisory board member for Abeona Therapeutics and Sanofi Genzyme. Dr. Bruckner-Tuderman disclosed receiving grants or research support from Constant Pharmaceuticals/Tarix Orphan.

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REPORTING FROM EB 2020

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