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Neurology Reviews covers innovative and emerging news in neurology and neuroscience every month, with a focus on practical approaches to treating Parkinson's disease, epilepsy, headache, stroke, multiple sclerosis, Alzheimer's disease, and other neurologic disorders.
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Progressive multifocal leukoencephalopathy
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The leading independent newspaper covering neurology news and commentary.
New European guidelines on CVD prevention
The new guidelines were published online Aug. 30 in the European Heart Journal to coincide with presentation at the European Stroke Congress (ESOC) 2021.
They were developed by an ESOC task force in collaboration with 12 medical societies and with special contribution of the European Association of Preventive Cardiology.
“A chief goal of the task force was to create a single CVD prevention guideline for everyone – for primary care, for hospital care, for guiding clinical practice – so one guideline for all,” said cochair of the guideline committee Frank Visseren, MD, PhD, University Medical Center Utrecht, Netherlands. “We also wanted to make a more personalized CVD prevention guideline, instead of a one-size-fits-all. In clinical practice, people are very, very different, and we really want to have a more individualized prevention guideline,” said Dr. Visseren, as well as provide “more room for shared decision-making.”
Prevention at the individual and population levels
The new guidelines also give more attention to CVD prevention in older persons. “Many of our patients are over 70 years old and we really want to have more detail, more guidance on older persons,” said Dr. Visseren.
The guideline is divided into two sections. One section covers CVD prevention at the individual level in apparently healthy people, in patients with established CVD, and in those with diabetes, familial hypercholesterolemia, or chronic kidney disease.
The other section covers CVD prevention at the population level, including public health policy, interventions, and the environment, including putting in place measures to reduce air pollution, use of fossil fuels, and limiting carbon dioxide emissions.
Targets for blood lipids, blood pressure, and glycemic control in diabetes remain in line with recent ESC guidelines on dyslipidemias, hypertension, or diabetes.
However, the guidelines introduce a new stepwise treatment-intensification approach to achieve these targets, with consideration of CVD risk, treatment benefit of risk factors, risk modifiers, comorbidities, and patient preferences.
The 2021 CVD prevention guidelines also embrace the recently published Systemic Coronary Risk Estimation 2 (SCORE2) and Systemic Coronary Risk Estimation 2-Older Persons (SCORE2-OP) algorithms. “The algorithms we are using are a bit old and we want to have more updated risk prediction, because that’s the starting point of CVD prevention,” Dr. Visseren said.
The guidelines also introduce age-specific risk thresholds for risk factor treatments in apparently healthy people and provide estimation of lifetime CVD risk and treatment benefit. This will allow clinicians to have “an informed discussion with patients on lifetime risk and potential treatment benefits,” Dr. Visseren said.
For the first time, the guidelines recommend smoking cessation regardless of whether it leads to weight gain, as weight gain does not lessen the benefits of cessation.
Regarding exercise, adults of all ages should aim for at least 150-300 minutes a week of moderate, or 75-150 minutes a week of vigorous, aerobic physical activity. The guidelines recommend reducing sedentary time and engaging in at least light activity throughout the day.
Regarding nutrition, the guidelines advise adopting a Mediterranean or similar diet; restricting alcohol intake to a maximum of 100 g per week (a standard drink is 8-14 g); eating fish, preferably fatty fish, at least once a week; and restricting consumption of meat, particularly processed meat.
Also for the first time, the guidelines state that bariatric surgery should be considered for obese individuals at elevated risk of CVD when a healthy diet and exercise fail to lead to weight loss that is maintained.
They note that individuals with mental disorders need additional attention and support to improve adherence to lifestyle changes and drug treatment.
They advise consideration of referring patients with heart disease and significant stress and anxiety to psychotherapeutic stress management to reduce stress symptoms and improve CV outcomes.
Potential cost issues that could be considered when implementing the guidelines are also reviewed.
Dr. Visseren acknowledged and thanked the task force members for continuing their work on the guidelines over the 2 “challenging” years.
Setting the bar lower?
Discussant for the guideline presentation, Diederick Grobbee, MD, University Medical Center Utrecht, who was not involved in drafting the guidelines, said he does have one conflict of interest, which is a “passion for prevention.” From that perspective, he said the guideline panel “should be applauded; the once-every-5-year issuing of the prevention guidelines is a major event.”
Dr. Grobbee noted that the working group “really tried to follow their ambitions and goals, in a way making the guidelines simpler, or perhaps setting the bar not initially as high as we used to do, which may, in fact, sometimes scare off physicians and patients alike.”
“We’ve had prevention guidelines for quite some time now, yet looking at what is accomplished in practice is sobering,” said Dr. Grobbee. Introducing a stepwise approach is “really appealing,” he added.
A version of this article first appeared on Medscape.com.
The new guidelines were published online Aug. 30 in the European Heart Journal to coincide with presentation at the European Stroke Congress (ESOC) 2021.
They were developed by an ESOC task force in collaboration with 12 medical societies and with special contribution of the European Association of Preventive Cardiology.
“A chief goal of the task force was to create a single CVD prevention guideline for everyone – for primary care, for hospital care, for guiding clinical practice – so one guideline for all,” said cochair of the guideline committee Frank Visseren, MD, PhD, University Medical Center Utrecht, Netherlands. “We also wanted to make a more personalized CVD prevention guideline, instead of a one-size-fits-all. In clinical practice, people are very, very different, and we really want to have a more individualized prevention guideline,” said Dr. Visseren, as well as provide “more room for shared decision-making.”
Prevention at the individual and population levels
The new guidelines also give more attention to CVD prevention in older persons. “Many of our patients are over 70 years old and we really want to have more detail, more guidance on older persons,” said Dr. Visseren.
The guideline is divided into two sections. One section covers CVD prevention at the individual level in apparently healthy people, in patients with established CVD, and in those with diabetes, familial hypercholesterolemia, or chronic kidney disease.
The other section covers CVD prevention at the population level, including public health policy, interventions, and the environment, including putting in place measures to reduce air pollution, use of fossil fuels, and limiting carbon dioxide emissions.
Targets for blood lipids, blood pressure, and glycemic control in diabetes remain in line with recent ESC guidelines on dyslipidemias, hypertension, or diabetes.
However, the guidelines introduce a new stepwise treatment-intensification approach to achieve these targets, with consideration of CVD risk, treatment benefit of risk factors, risk modifiers, comorbidities, and patient preferences.
The 2021 CVD prevention guidelines also embrace the recently published Systemic Coronary Risk Estimation 2 (SCORE2) and Systemic Coronary Risk Estimation 2-Older Persons (SCORE2-OP) algorithms. “The algorithms we are using are a bit old and we want to have more updated risk prediction, because that’s the starting point of CVD prevention,” Dr. Visseren said.
The guidelines also introduce age-specific risk thresholds for risk factor treatments in apparently healthy people and provide estimation of lifetime CVD risk and treatment benefit. This will allow clinicians to have “an informed discussion with patients on lifetime risk and potential treatment benefits,” Dr. Visseren said.
For the first time, the guidelines recommend smoking cessation regardless of whether it leads to weight gain, as weight gain does not lessen the benefits of cessation.
Regarding exercise, adults of all ages should aim for at least 150-300 minutes a week of moderate, or 75-150 minutes a week of vigorous, aerobic physical activity. The guidelines recommend reducing sedentary time and engaging in at least light activity throughout the day.
Regarding nutrition, the guidelines advise adopting a Mediterranean or similar diet; restricting alcohol intake to a maximum of 100 g per week (a standard drink is 8-14 g); eating fish, preferably fatty fish, at least once a week; and restricting consumption of meat, particularly processed meat.
Also for the first time, the guidelines state that bariatric surgery should be considered for obese individuals at elevated risk of CVD when a healthy diet and exercise fail to lead to weight loss that is maintained.
They note that individuals with mental disorders need additional attention and support to improve adherence to lifestyle changes and drug treatment.
They advise consideration of referring patients with heart disease and significant stress and anxiety to psychotherapeutic stress management to reduce stress symptoms and improve CV outcomes.
Potential cost issues that could be considered when implementing the guidelines are also reviewed.
Dr. Visseren acknowledged and thanked the task force members for continuing their work on the guidelines over the 2 “challenging” years.
Setting the bar lower?
Discussant for the guideline presentation, Diederick Grobbee, MD, University Medical Center Utrecht, who was not involved in drafting the guidelines, said he does have one conflict of interest, which is a “passion for prevention.” From that perspective, he said the guideline panel “should be applauded; the once-every-5-year issuing of the prevention guidelines is a major event.”
Dr. Grobbee noted that the working group “really tried to follow their ambitions and goals, in a way making the guidelines simpler, or perhaps setting the bar not initially as high as we used to do, which may, in fact, sometimes scare off physicians and patients alike.”
“We’ve had prevention guidelines for quite some time now, yet looking at what is accomplished in practice is sobering,” said Dr. Grobbee. Introducing a stepwise approach is “really appealing,” he added.
A version of this article first appeared on Medscape.com.
The new guidelines were published online Aug. 30 in the European Heart Journal to coincide with presentation at the European Stroke Congress (ESOC) 2021.
They were developed by an ESOC task force in collaboration with 12 medical societies and with special contribution of the European Association of Preventive Cardiology.
“A chief goal of the task force was to create a single CVD prevention guideline for everyone – for primary care, for hospital care, for guiding clinical practice – so one guideline for all,” said cochair of the guideline committee Frank Visseren, MD, PhD, University Medical Center Utrecht, Netherlands. “We also wanted to make a more personalized CVD prevention guideline, instead of a one-size-fits-all. In clinical practice, people are very, very different, and we really want to have a more individualized prevention guideline,” said Dr. Visseren, as well as provide “more room for shared decision-making.”
Prevention at the individual and population levels
The new guidelines also give more attention to CVD prevention in older persons. “Many of our patients are over 70 years old and we really want to have more detail, more guidance on older persons,” said Dr. Visseren.
The guideline is divided into two sections. One section covers CVD prevention at the individual level in apparently healthy people, in patients with established CVD, and in those with diabetes, familial hypercholesterolemia, or chronic kidney disease.
The other section covers CVD prevention at the population level, including public health policy, interventions, and the environment, including putting in place measures to reduce air pollution, use of fossil fuels, and limiting carbon dioxide emissions.
Targets for blood lipids, blood pressure, and glycemic control in diabetes remain in line with recent ESC guidelines on dyslipidemias, hypertension, or diabetes.
However, the guidelines introduce a new stepwise treatment-intensification approach to achieve these targets, with consideration of CVD risk, treatment benefit of risk factors, risk modifiers, comorbidities, and patient preferences.
The 2021 CVD prevention guidelines also embrace the recently published Systemic Coronary Risk Estimation 2 (SCORE2) and Systemic Coronary Risk Estimation 2-Older Persons (SCORE2-OP) algorithms. “The algorithms we are using are a bit old and we want to have more updated risk prediction, because that’s the starting point of CVD prevention,” Dr. Visseren said.
The guidelines also introduce age-specific risk thresholds for risk factor treatments in apparently healthy people and provide estimation of lifetime CVD risk and treatment benefit. This will allow clinicians to have “an informed discussion with patients on lifetime risk and potential treatment benefits,” Dr. Visseren said.
For the first time, the guidelines recommend smoking cessation regardless of whether it leads to weight gain, as weight gain does not lessen the benefits of cessation.
Regarding exercise, adults of all ages should aim for at least 150-300 minutes a week of moderate, or 75-150 minutes a week of vigorous, aerobic physical activity. The guidelines recommend reducing sedentary time and engaging in at least light activity throughout the day.
Regarding nutrition, the guidelines advise adopting a Mediterranean or similar diet; restricting alcohol intake to a maximum of 100 g per week (a standard drink is 8-14 g); eating fish, preferably fatty fish, at least once a week; and restricting consumption of meat, particularly processed meat.
Also for the first time, the guidelines state that bariatric surgery should be considered for obese individuals at elevated risk of CVD when a healthy diet and exercise fail to lead to weight loss that is maintained.
They note that individuals with mental disorders need additional attention and support to improve adherence to lifestyle changes and drug treatment.
They advise consideration of referring patients with heart disease and significant stress and anxiety to psychotherapeutic stress management to reduce stress symptoms and improve CV outcomes.
Potential cost issues that could be considered when implementing the guidelines are also reviewed.
Dr. Visseren acknowledged and thanked the task force members for continuing their work on the guidelines over the 2 “challenging” years.
Setting the bar lower?
Discussant for the guideline presentation, Diederick Grobbee, MD, University Medical Center Utrecht, who was not involved in drafting the guidelines, said he does have one conflict of interest, which is a “passion for prevention.” From that perspective, he said the guideline panel “should be applauded; the once-every-5-year issuing of the prevention guidelines is a major event.”
Dr. Grobbee noted that the working group “really tried to follow their ambitions and goals, in a way making the guidelines simpler, or perhaps setting the bar not initially as high as we used to do, which may, in fact, sometimes scare off physicians and patients alike.”
“We’ve had prevention guidelines for quite some time now, yet looking at what is accomplished in practice is sobering,” said Dr. Grobbee. Introducing a stepwise approach is “really appealing,” he added.
A version of this article first appeared on Medscape.com.
FROM ESC 2021
Toward ‘superhuman cognition’: The future of brain-computer interfaces
The brain is inarguably the most complex and mysterious organ in the human body.
As the epicenter of intelligence, mastermind of movement, and song for our senses, the brain is more than a 3-lb organ encased in shell and fluid. Rather, it is the crown jewel that defines the self and, broadly, humanity.
For decades now, researchers have been exploring the potential for connecting our own astounding biological “computer” with actual physical mainframes. These so-called “brain-computer interfaces” (BCIs) are showing promise in treating an array of conditions, including paralysis, deafness, stroke, and even psychiatric disorders.
Among the big players in this area of research is billionaire entrepreneur Elon Musk, who in 2016 founded Neuralink. The company’s short-term mission is to develop a brain-to-machine interface to help people with neurologic conditions (for example, Parkinson’s disease). The long-term mission is to steer humanity into the era of “superhuman cognition.”
But first, some neuroscience 101.
Neurons are specialized cells that transmit and receive information. The basic structure of a neuron includes the dendrite, soma, and axon. The dendrite is the signal receiver. The soma is the cell body that is connected to the dendrites and serves as a structure to pass signals. The axon, also known as the nerve fiber, transmits the signal away from the soma.
Neurons communicate with each other at the synapse (for example, axon-dendrite connection). Neurons send information to each other through action potentials. An action potential may be defined as an electric impulse that transmits down the axon, causing the release of neurotransmitters, which may consequently either inhibit or excite the next neuron (leading to the initiation of another action potential).
So how will the company and other BCI companies tap into this evolutionarily ancient system to develop an implant that will obtain and decode information output from the brain?
The Neuralink implant is composed of three parts: The Link, neural threads, and the charger.
A robotic system, controlled by a neurosurgeon, will place an implant into the brain. The Link is the central component. It processes and transmits neural signals. The micron-scale neural threads are connected to the Link and other areas of the brain. The threads also contain electrodes, which are responsible for detecting neural signals. The charger ensures the battery is charged via wireless connection.
The invasive nature of this implant allows for precise readouts of electric outputs from the brain – unlike noninvasive devices, which are less sensitive and specific. Additionally, owing to its small size, engineers and neurosurgeons can implant the device in very specific brain regions as well as customize electrode distribution.
The Neuralink implant would be paired with an application via Bluetooth connection. The goal is to enable someone with the implant to control their device or computer by simply thinking. The application offers several exercises to help guide and train individuals on how to use the implant for its intended purpose. , as well as partake in creative activities such as photography.
Existing text and speech synthesis technology are already underway. For example, Synchron, a BCI platform company, is investigating the use of Stentrode for people with severe paralysis. This neuroprosthesis was designed to help people associate thought with movement through Bluetooth technology (for example, texting, emailing, shopping, online banking). Preliminary results from a study in which the device was used for patients with amyotrophic lateral sclerosis showed improvements in functional independence via direct thinking.
Software intended to enable high-performance handwriting utilizing BCI technology is being developed by Francis R. Willett, PhD, at Stanford (Calif.) University. The technology has also shown promise.
“We’ve learned that the brain retains its ability to prescribe fine movements a full decade after the body has lost its ability to execute those movements,” says Dr. Willett, who recently reported on results from a BCI study of handwriting conversion in an individual with full-body paralysis. Through a recurrent neural networking decoding approach, the BrainGate study participant was able to type 90 characters per minute – with an impressive 94.1% raw accuracy – using thoughts alone.
Although not a fully implantable brain device, this percutaneous implant has also been studied of its capacity to restore arm function among individuals who suffered from chronic stroke. Preliminary results from the Cortimo trials, led by Mijail D. Serruya, MD, an assistant professor at Thomas Jefferson University, Philadelphia, have been positive. Researchers implanted microelectrode arrays to decode brain signals and power motor function in a participant who had experienced a stroke 2 years earlier. The participant was able to use a powered arm brace on their paralyzed arm.
Neuralink recently released a video demonstrating the use of the interface in a monkey named Pager as it played a game with a joystick. Company researchers inserted a 1024-Electrode neural recording and data transmission device called the N1 Link into the left and right motor cortices. Using the implant, neural activity was sent to a decoder algorithm. Throughout the process, the decoder algorithm was refined and calibrated. After a few minutes, Pager was able to control the cursor on the screen using his mind instead of the joystick.
Mr. Musk hopes to develop Neuralink further to change not only the way we treat neurological disorders but also the way we interact with ourselves and our environment. It’s a lofty goal to be sure, but one that doesn’t seem outside the realm of possibility in the near future.
Known unknowns: The ethical dilemmas
One major conundrum facing the future of BCI technology is that researchers don’t fully understand the science regarding how brain signaling, artificial intelligence (AI) software, and prostheses interact. Although offloading computations improves the predictive nature of AI algorithms, there are concerns of identity and personal agency.
How do we know that an action is truly the result of one’s own thinking or, rather, the outcome of AI software? In this context, the autocorrect function while typing can be incredibly useful when we’re in a pinch for time, when we’re using one hand to type, or because of ease. However, it’s also easy to create and send out unintended or inappropriate messages.
These algorithms are designed to learn from our behavior and anticipate our next move. However, a question arises as to whether we are the authors of our own thoughts or whether we are simply the device that delivers messages under the control of external forces.
“People may question whether new personality changes they experience are truly representative of themselves or whether they are now a product of the implant (e.g., ‘Is that really me?’; ‘Have I grown as a person, or is it the technology?’). This then raises questions about agency and who we are as people,” says Kerry Bowman, PhD, a clinical bioethicist and assistant professor at the Temerty Faculty of Medicine of the University of Toronto.
It’s important to have safeguards in place to ensure the privacy of our thoughts. In an age where data is currency, it’s crucial to establish boundaries to preserve our autonomy and prevent exploitation (for example, by private companies or hackers). Although Neuralink and BCIs generally are certainly pushing the boundaries of neural engineering in profound ways, it’s important to note the biological and ethical implications of this technology.
As Dr. Bowman points out, “throughout the entire human story, under the worst of human circumstances, such as captivity and torture, the one safe ground and place for all people has been the privacy of one’s own mind. No one could ever interfere, take away, or be aware of those thoughts. However, this technology challenges one’s own privacy – that this technology (and, by extension, a company) could be aware of those thoughts.”
A version of this article first appeared on Medscape.com.
The brain is inarguably the most complex and mysterious organ in the human body.
As the epicenter of intelligence, mastermind of movement, and song for our senses, the brain is more than a 3-lb organ encased in shell and fluid. Rather, it is the crown jewel that defines the self and, broadly, humanity.
For decades now, researchers have been exploring the potential for connecting our own astounding biological “computer” with actual physical mainframes. These so-called “brain-computer interfaces” (BCIs) are showing promise in treating an array of conditions, including paralysis, deafness, stroke, and even psychiatric disorders.
Among the big players in this area of research is billionaire entrepreneur Elon Musk, who in 2016 founded Neuralink. The company’s short-term mission is to develop a brain-to-machine interface to help people with neurologic conditions (for example, Parkinson’s disease). The long-term mission is to steer humanity into the era of “superhuman cognition.”
But first, some neuroscience 101.
Neurons are specialized cells that transmit and receive information. The basic structure of a neuron includes the dendrite, soma, and axon. The dendrite is the signal receiver. The soma is the cell body that is connected to the dendrites and serves as a structure to pass signals. The axon, also known as the nerve fiber, transmits the signal away from the soma.
Neurons communicate with each other at the synapse (for example, axon-dendrite connection). Neurons send information to each other through action potentials. An action potential may be defined as an electric impulse that transmits down the axon, causing the release of neurotransmitters, which may consequently either inhibit or excite the next neuron (leading to the initiation of another action potential).
So how will the company and other BCI companies tap into this evolutionarily ancient system to develop an implant that will obtain and decode information output from the brain?
The Neuralink implant is composed of three parts: The Link, neural threads, and the charger.
A robotic system, controlled by a neurosurgeon, will place an implant into the brain. The Link is the central component. It processes and transmits neural signals. The micron-scale neural threads are connected to the Link and other areas of the brain. The threads also contain electrodes, which are responsible for detecting neural signals. The charger ensures the battery is charged via wireless connection.
The invasive nature of this implant allows for precise readouts of electric outputs from the brain – unlike noninvasive devices, which are less sensitive and specific. Additionally, owing to its small size, engineers and neurosurgeons can implant the device in very specific brain regions as well as customize electrode distribution.
The Neuralink implant would be paired with an application via Bluetooth connection. The goal is to enable someone with the implant to control their device or computer by simply thinking. The application offers several exercises to help guide and train individuals on how to use the implant for its intended purpose. , as well as partake in creative activities such as photography.
Existing text and speech synthesis technology are already underway. For example, Synchron, a BCI platform company, is investigating the use of Stentrode for people with severe paralysis. This neuroprosthesis was designed to help people associate thought with movement through Bluetooth technology (for example, texting, emailing, shopping, online banking). Preliminary results from a study in which the device was used for patients with amyotrophic lateral sclerosis showed improvements in functional independence via direct thinking.
Software intended to enable high-performance handwriting utilizing BCI technology is being developed by Francis R. Willett, PhD, at Stanford (Calif.) University. The technology has also shown promise.
“We’ve learned that the brain retains its ability to prescribe fine movements a full decade after the body has lost its ability to execute those movements,” says Dr. Willett, who recently reported on results from a BCI study of handwriting conversion in an individual with full-body paralysis. Through a recurrent neural networking decoding approach, the BrainGate study participant was able to type 90 characters per minute – with an impressive 94.1% raw accuracy – using thoughts alone.
Although not a fully implantable brain device, this percutaneous implant has also been studied of its capacity to restore arm function among individuals who suffered from chronic stroke. Preliminary results from the Cortimo trials, led by Mijail D. Serruya, MD, an assistant professor at Thomas Jefferson University, Philadelphia, have been positive. Researchers implanted microelectrode arrays to decode brain signals and power motor function in a participant who had experienced a stroke 2 years earlier. The participant was able to use a powered arm brace on their paralyzed arm.
Neuralink recently released a video demonstrating the use of the interface in a monkey named Pager as it played a game with a joystick. Company researchers inserted a 1024-Electrode neural recording and data transmission device called the N1 Link into the left and right motor cortices. Using the implant, neural activity was sent to a decoder algorithm. Throughout the process, the decoder algorithm was refined and calibrated. After a few minutes, Pager was able to control the cursor on the screen using his mind instead of the joystick.
Mr. Musk hopes to develop Neuralink further to change not only the way we treat neurological disorders but also the way we interact with ourselves and our environment. It’s a lofty goal to be sure, but one that doesn’t seem outside the realm of possibility in the near future.
Known unknowns: The ethical dilemmas
One major conundrum facing the future of BCI technology is that researchers don’t fully understand the science regarding how brain signaling, artificial intelligence (AI) software, and prostheses interact. Although offloading computations improves the predictive nature of AI algorithms, there are concerns of identity and personal agency.
How do we know that an action is truly the result of one’s own thinking or, rather, the outcome of AI software? In this context, the autocorrect function while typing can be incredibly useful when we’re in a pinch for time, when we’re using one hand to type, or because of ease. However, it’s also easy to create and send out unintended or inappropriate messages.
These algorithms are designed to learn from our behavior and anticipate our next move. However, a question arises as to whether we are the authors of our own thoughts or whether we are simply the device that delivers messages under the control of external forces.
“People may question whether new personality changes they experience are truly representative of themselves or whether they are now a product of the implant (e.g., ‘Is that really me?’; ‘Have I grown as a person, or is it the technology?’). This then raises questions about agency and who we are as people,” says Kerry Bowman, PhD, a clinical bioethicist and assistant professor at the Temerty Faculty of Medicine of the University of Toronto.
It’s important to have safeguards in place to ensure the privacy of our thoughts. In an age where data is currency, it’s crucial to establish boundaries to preserve our autonomy and prevent exploitation (for example, by private companies or hackers). Although Neuralink and BCIs generally are certainly pushing the boundaries of neural engineering in profound ways, it’s important to note the biological and ethical implications of this technology.
As Dr. Bowman points out, “throughout the entire human story, under the worst of human circumstances, such as captivity and torture, the one safe ground and place for all people has been the privacy of one’s own mind. No one could ever interfere, take away, or be aware of those thoughts. However, this technology challenges one’s own privacy – that this technology (and, by extension, a company) could be aware of those thoughts.”
A version of this article first appeared on Medscape.com.
The brain is inarguably the most complex and mysterious organ in the human body.
As the epicenter of intelligence, mastermind of movement, and song for our senses, the brain is more than a 3-lb organ encased in shell and fluid. Rather, it is the crown jewel that defines the self and, broadly, humanity.
For decades now, researchers have been exploring the potential for connecting our own astounding biological “computer” with actual physical mainframes. These so-called “brain-computer interfaces” (BCIs) are showing promise in treating an array of conditions, including paralysis, deafness, stroke, and even psychiatric disorders.
Among the big players in this area of research is billionaire entrepreneur Elon Musk, who in 2016 founded Neuralink. The company’s short-term mission is to develop a brain-to-machine interface to help people with neurologic conditions (for example, Parkinson’s disease). The long-term mission is to steer humanity into the era of “superhuman cognition.”
But first, some neuroscience 101.
Neurons are specialized cells that transmit and receive information. The basic structure of a neuron includes the dendrite, soma, and axon. The dendrite is the signal receiver. The soma is the cell body that is connected to the dendrites and serves as a structure to pass signals. The axon, also known as the nerve fiber, transmits the signal away from the soma.
Neurons communicate with each other at the synapse (for example, axon-dendrite connection). Neurons send information to each other through action potentials. An action potential may be defined as an electric impulse that transmits down the axon, causing the release of neurotransmitters, which may consequently either inhibit or excite the next neuron (leading to the initiation of another action potential).
So how will the company and other BCI companies tap into this evolutionarily ancient system to develop an implant that will obtain and decode information output from the brain?
The Neuralink implant is composed of three parts: The Link, neural threads, and the charger.
A robotic system, controlled by a neurosurgeon, will place an implant into the brain. The Link is the central component. It processes and transmits neural signals. The micron-scale neural threads are connected to the Link and other areas of the brain. The threads also contain electrodes, which are responsible for detecting neural signals. The charger ensures the battery is charged via wireless connection.
The invasive nature of this implant allows for precise readouts of electric outputs from the brain – unlike noninvasive devices, which are less sensitive and specific. Additionally, owing to its small size, engineers and neurosurgeons can implant the device in very specific brain regions as well as customize electrode distribution.
The Neuralink implant would be paired with an application via Bluetooth connection. The goal is to enable someone with the implant to control their device or computer by simply thinking. The application offers several exercises to help guide and train individuals on how to use the implant for its intended purpose. , as well as partake in creative activities such as photography.
Existing text and speech synthesis technology are already underway. For example, Synchron, a BCI platform company, is investigating the use of Stentrode for people with severe paralysis. This neuroprosthesis was designed to help people associate thought with movement through Bluetooth technology (for example, texting, emailing, shopping, online banking). Preliminary results from a study in which the device was used for patients with amyotrophic lateral sclerosis showed improvements in functional independence via direct thinking.
Software intended to enable high-performance handwriting utilizing BCI technology is being developed by Francis R. Willett, PhD, at Stanford (Calif.) University. The technology has also shown promise.
“We’ve learned that the brain retains its ability to prescribe fine movements a full decade after the body has lost its ability to execute those movements,” says Dr. Willett, who recently reported on results from a BCI study of handwriting conversion in an individual with full-body paralysis. Through a recurrent neural networking decoding approach, the BrainGate study participant was able to type 90 characters per minute – with an impressive 94.1% raw accuracy – using thoughts alone.
Although not a fully implantable brain device, this percutaneous implant has also been studied of its capacity to restore arm function among individuals who suffered from chronic stroke. Preliminary results from the Cortimo trials, led by Mijail D. Serruya, MD, an assistant professor at Thomas Jefferson University, Philadelphia, have been positive. Researchers implanted microelectrode arrays to decode brain signals and power motor function in a participant who had experienced a stroke 2 years earlier. The participant was able to use a powered arm brace on their paralyzed arm.
Neuralink recently released a video demonstrating the use of the interface in a monkey named Pager as it played a game with a joystick. Company researchers inserted a 1024-Electrode neural recording and data transmission device called the N1 Link into the left and right motor cortices. Using the implant, neural activity was sent to a decoder algorithm. Throughout the process, the decoder algorithm was refined and calibrated. After a few minutes, Pager was able to control the cursor on the screen using his mind instead of the joystick.
Mr. Musk hopes to develop Neuralink further to change not only the way we treat neurological disorders but also the way we interact with ourselves and our environment. It’s a lofty goal to be sure, but one that doesn’t seem outside the realm of possibility in the near future.
Known unknowns: The ethical dilemmas
One major conundrum facing the future of BCI technology is that researchers don’t fully understand the science regarding how brain signaling, artificial intelligence (AI) software, and prostheses interact. Although offloading computations improves the predictive nature of AI algorithms, there are concerns of identity and personal agency.
How do we know that an action is truly the result of one’s own thinking or, rather, the outcome of AI software? In this context, the autocorrect function while typing can be incredibly useful when we’re in a pinch for time, when we’re using one hand to type, or because of ease. However, it’s also easy to create and send out unintended or inappropriate messages.
These algorithms are designed to learn from our behavior and anticipate our next move. However, a question arises as to whether we are the authors of our own thoughts or whether we are simply the device that delivers messages under the control of external forces.
“People may question whether new personality changes they experience are truly representative of themselves or whether they are now a product of the implant (e.g., ‘Is that really me?’; ‘Have I grown as a person, or is it the technology?’). This then raises questions about agency and who we are as people,” says Kerry Bowman, PhD, a clinical bioethicist and assistant professor at the Temerty Faculty of Medicine of the University of Toronto.
It’s important to have safeguards in place to ensure the privacy of our thoughts. In an age where data is currency, it’s crucial to establish boundaries to preserve our autonomy and prevent exploitation (for example, by private companies or hackers). Although Neuralink and BCIs generally are certainly pushing the boundaries of neural engineering in profound ways, it’s important to note the biological and ethical implications of this technology.
As Dr. Bowman points out, “throughout the entire human story, under the worst of human circumstances, such as captivity and torture, the one safe ground and place for all people has been the privacy of one’s own mind. No one could ever interfere, take away, or be aware of those thoughts. However, this technology challenges one’s own privacy – that this technology (and, by extension, a company) could be aware of those thoughts.”
A version of this article first appeared on Medscape.com.
Exercising to lose weight is not for every ‘body’
Exercising to lose weight is not for every ‘body’
This first item comes from the “You’ve got to be kidding” section of LOTME’s supersecret topics-of-interest file.
Investigators at the Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences and the University of Roehampton noticed that some people who enrolled in exercise programs to lose weight did just the opposite: they gained weight.
Being scientists, they decided to look at the effects of energy expenditure and how those effects varied among individuals. The likely culprit in this case, they determined, is something called compensatory mechanisms. One such mechanism involves eating more food because exercise stimulates appetite, and another might reduce energy expenditure on other components like resting metabolism so that the exercise is, in effect, less costly.
A look at the numbers shows how compensatory mechanisms worked in the study population of 1,750 adults. Among individuals with the highest BMI, 51% of the calories burned during activity translated into calories burned at the end of the day. For those with normal BMI, however, 72% of calories burned during activity were reflected in total expenditure.
“People living with obesity cut back their resting metabolism when they are more active. The result is that for every calorie they spend on exercise they save about half a calorie on resting,” the investigators explained.
In other words, some bodies will, unconsciously, work against the conscious effort of exercising to lose weight. Thank you very much, compensatory mechanisms, for the boundarylessness exhibited in exceeding your job description.
When it comes to the mix, walnuts go nuts
When it comes to mixed nuts, walnuts get no love. But we may be able to give you a reason to not pick them out: Your arteries.
Participants in a recent study who ate about a half-cup of walnuts every day for 2 years saw a drop in their low-density lipoprotein (LDL) cholesterol. The number and quality of LDL particles in healthy older adults also improved. How? Good ol’ omega-3 fatty acids.
Omega-3 is found in many foods linked to lower risks of heart disease, lower cholesterol levels, and lower blood sugar levels, but the one thing that makes the walnut a front runner for Miss Super Food 2021 is their ability to improve the quality of LDL particles.
“LDL particles come in various sizes [and] research has shown that small, dense LDL particles are more often associated with atherosclerosis, the plaque or fatty deposits that build up in the arteries,” Emilio Ros, MD, PhD, of the Hospital Clínic of Barcelona and the study’s senior investigator, said in a written statement.
The 708 participants, aged 63-79 years and mostly women, were divided into two groups: One received the walnut diet and the other did not. After 2 years, the walnut group had lower LDL levels by an average of 4.3 mg/dL. Total cholesterol was reduced by an average of 8.5 mg/dL. Also, their total LDL particle count was 4.3% lower and small LDL particles were down by 6.1%.
So instead of picking the walnuts out of the mix, try to find it in your heart to appreciate them. Your body already does.
Begun, the clone war has
Well, not quite yet, Master Yoda, but perhaps one day soon, if a study from Japan into the uncanny valley of the usage of cloned humanlike faces in robotics and artificial intelligence, published in PLOS One, is to be believed.
The study consisted of a number of six smaller experiments in which participants judged a series of images based on subjective eeriness, emotional valence, and realism. The images included people with the same cloned face; people with different faces; dogs; identical twins, triplets, quadruplets, etc.; and cloned animated characters. In the sixth experiment, the photos were the same as in the second (six cloned faces, six different faces, and a single face) but participants also answered the Disgust Scale–Revised to accurately analyze disgust sensitivity.
The results of all these experiments were quite clear: People found the cloned faces far creepier than the varied or single face, an effect the researchers called clone devaluation. Notably, this effect only applied to realistic human faces; most people didn’t find the cloned dogs or cloned animated characters creepy. However, those who did were more likely to find the human clones eerie on the Disgust Scale.
The authors noted that future robotics technology needs to be carefully considered to avoid the uncanny valley and this clone devaluation effect, which is a very good point. The last thing we need is a few million robots with identical faces getting angry at us and pulling a Terminator/Order 66 combo. We’re already in a viral apocalypse; we don’t need a robot one on top of that.
Congratulations to our new favorite reader
The winner of last week’s inaugural Pandemic Pandemonium comes to us from Tiffanie Roe. By getting her entry in first, just ahead of the flood of responses we received – and by flood we mean a very slow and very quickly repaired drip – Ms. Roe puts the gold medal for COVID-related insanity around the necks of Australian magpies, who may start attacking people wearing face masks during “swooping season” because the birds don’t recognize them.
Exercising to lose weight is not for every ‘body’
This first item comes from the “You’ve got to be kidding” section of LOTME’s supersecret topics-of-interest file.
Investigators at the Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences and the University of Roehampton noticed that some people who enrolled in exercise programs to lose weight did just the opposite: they gained weight.
Being scientists, they decided to look at the effects of energy expenditure and how those effects varied among individuals. The likely culprit in this case, they determined, is something called compensatory mechanisms. One such mechanism involves eating more food because exercise stimulates appetite, and another might reduce energy expenditure on other components like resting metabolism so that the exercise is, in effect, less costly.
A look at the numbers shows how compensatory mechanisms worked in the study population of 1,750 adults. Among individuals with the highest BMI, 51% of the calories burned during activity translated into calories burned at the end of the day. For those with normal BMI, however, 72% of calories burned during activity were reflected in total expenditure.
“People living with obesity cut back their resting metabolism when they are more active. The result is that for every calorie they spend on exercise they save about half a calorie on resting,” the investigators explained.
In other words, some bodies will, unconsciously, work against the conscious effort of exercising to lose weight. Thank you very much, compensatory mechanisms, for the boundarylessness exhibited in exceeding your job description.
When it comes to the mix, walnuts go nuts
When it comes to mixed nuts, walnuts get no love. But we may be able to give you a reason to not pick them out: Your arteries.
Participants in a recent study who ate about a half-cup of walnuts every day for 2 years saw a drop in their low-density lipoprotein (LDL) cholesterol. The number and quality of LDL particles in healthy older adults also improved. How? Good ol’ omega-3 fatty acids.
Omega-3 is found in many foods linked to lower risks of heart disease, lower cholesterol levels, and lower blood sugar levels, but the one thing that makes the walnut a front runner for Miss Super Food 2021 is their ability to improve the quality of LDL particles.
“LDL particles come in various sizes [and] research has shown that small, dense LDL particles are more often associated with atherosclerosis, the plaque or fatty deposits that build up in the arteries,” Emilio Ros, MD, PhD, of the Hospital Clínic of Barcelona and the study’s senior investigator, said in a written statement.
The 708 participants, aged 63-79 years and mostly women, were divided into two groups: One received the walnut diet and the other did not. After 2 years, the walnut group had lower LDL levels by an average of 4.3 mg/dL. Total cholesterol was reduced by an average of 8.5 mg/dL. Also, their total LDL particle count was 4.3% lower and small LDL particles were down by 6.1%.
So instead of picking the walnuts out of the mix, try to find it in your heart to appreciate them. Your body already does.
Begun, the clone war has
Well, not quite yet, Master Yoda, but perhaps one day soon, if a study from Japan into the uncanny valley of the usage of cloned humanlike faces in robotics and artificial intelligence, published in PLOS One, is to be believed.
The study consisted of a number of six smaller experiments in which participants judged a series of images based on subjective eeriness, emotional valence, and realism. The images included people with the same cloned face; people with different faces; dogs; identical twins, triplets, quadruplets, etc.; and cloned animated characters. In the sixth experiment, the photos were the same as in the second (six cloned faces, six different faces, and a single face) but participants also answered the Disgust Scale–Revised to accurately analyze disgust sensitivity.
The results of all these experiments were quite clear: People found the cloned faces far creepier than the varied or single face, an effect the researchers called clone devaluation. Notably, this effect only applied to realistic human faces; most people didn’t find the cloned dogs or cloned animated characters creepy. However, those who did were more likely to find the human clones eerie on the Disgust Scale.
The authors noted that future robotics technology needs to be carefully considered to avoid the uncanny valley and this clone devaluation effect, which is a very good point. The last thing we need is a few million robots with identical faces getting angry at us and pulling a Terminator/Order 66 combo. We’re already in a viral apocalypse; we don’t need a robot one on top of that.
Congratulations to our new favorite reader
The winner of last week’s inaugural Pandemic Pandemonium comes to us from Tiffanie Roe. By getting her entry in first, just ahead of the flood of responses we received – and by flood we mean a very slow and very quickly repaired drip – Ms. Roe puts the gold medal for COVID-related insanity around the necks of Australian magpies, who may start attacking people wearing face masks during “swooping season” because the birds don’t recognize them.
Exercising to lose weight is not for every ‘body’
This first item comes from the “You’ve got to be kidding” section of LOTME’s supersecret topics-of-interest file.
Investigators at the Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences and the University of Roehampton noticed that some people who enrolled in exercise programs to lose weight did just the opposite: they gained weight.
Being scientists, they decided to look at the effects of energy expenditure and how those effects varied among individuals. The likely culprit in this case, they determined, is something called compensatory mechanisms. One such mechanism involves eating more food because exercise stimulates appetite, and another might reduce energy expenditure on other components like resting metabolism so that the exercise is, in effect, less costly.
A look at the numbers shows how compensatory mechanisms worked in the study population of 1,750 adults. Among individuals with the highest BMI, 51% of the calories burned during activity translated into calories burned at the end of the day. For those with normal BMI, however, 72% of calories burned during activity were reflected in total expenditure.
“People living with obesity cut back their resting metabolism when they are more active. The result is that for every calorie they spend on exercise they save about half a calorie on resting,” the investigators explained.
In other words, some bodies will, unconsciously, work against the conscious effort of exercising to lose weight. Thank you very much, compensatory mechanisms, for the boundarylessness exhibited in exceeding your job description.
When it comes to the mix, walnuts go nuts
When it comes to mixed nuts, walnuts get no love. But we may be able to give you a reason to not pick them out: Your arteries.
Participants in a recent study who ate about a half-cup of walnuts every day for 2 years saw a drop in their low-density lipoprotein (LDL) cholesterol. The number and quality of LDL particles in healthy older adults also improved. How? Good ol’ omega-3 fatty acids.
Omega-3 is found in many foods linked to lower risks of heart disease, lower cholesterol levels, and lower blood sugar levels, but the one thing that makes the walnut a front runner for Miss Super Food 2021 is their ability to improve the quality of LDL particles.
“LDL particles come in various sizes [and] research has shown that small, dense LDL particles are more often associated with atherosclerosis, the plaque or fatty deposits that build up in the arteries,” Emilio Ros, MD, PhD, of the Hospital Clínic of Barcelona and the study’s senior investigator, said in a written statement.
The 708 participants, aged 63-79 years and mostly women, were divided into two groups: One received the walnut diet and the other did not. After 2 years, the walnut group had lower LDL levels by an average of 4.3 mg/dL. Total cholesterol was reduced by an average of 8.5 mg/dL. Also, their total LDL particle count was 4.3% lower and small LDL particles were down by 6.1%.
So instead of picking the walnuts out of the mix, try to find it in your heart to appreciate them. Your body already does.
Begun, the clone war has
Well, not quite yet, Master Yoda, but perhaps one day soon, if a study from Japan into the uncanny valley of the usage of cloned humanlike faces in robotics and artificial intelligence, published in PLOS One, is to be believed.
The study consisted of a number of six smaller experiments in which participants judged a series of images based on subjective eeriness, emotional valence, and realism. The images included people with the same cloned face; people with different faces; dogs; identical twins, triplets, quadruplets, etc.; and cloned animated characters. In the sixth experiment, the photos were the same as in the second (six cloned faces, six different faces, and a single face) but participants also answered the Disgust Scale–Revised to accurately analyze disgust sensitivity.
The results of all these experiments were quite clear: People found the cloned faces far creepier than the varied or single face, an effect the researchers called clone devaluation. Notably, this effect only applied to realistic human faces; most people didn’t find the cloned dogs or cloned animated characters creepy. However, those who did were more likely to find the human clones eerie on the Disgust Scale.
The authors noted that future robotics technology needs to be carefully considered to avoid the uncanny valley and this clone devaluation effect, which is a very good point. The last thing we need is a few million robots with identical faces getting angry at us and pulling a Terminator/Order 66 combo. We’re already in a viral apocalypse; we don’t need a robot one on top of that.
Congratulations to our new favorite reader
The winner of last week’s inaugural Pandemic Pandemonium comes to us from Tiffanie Roe. By getting her entry in first, just ahead of the flood of responses we received – and by flood we mean a very slow and very quickly repaired drip – Ms. Roe puts the gold medal for COVID-related insanity around the necks of Australian magpies, who may start attacking people wearing face masks during “swooping season” because the birds don’t recognize them.
MS plus depression can increase risk of death, vascular disease
, a new study has found. “The effects of depression and MS on all-cause mortality are synergistic,” wrote lead author Raffaele Palladino, MD, PhD, research associate, faculty of medicine, Imperial College London.
The study was published in Neurology.
To assess the association between depression, vascular disease, and death in patients with MS, the researchers launched a population-based retrospective cohort study that reviewed English medical records from January 1987 to December 2018 and matched people with and without MS. Ultimately, 12,251 people with MS were matched with 72,572 controls. At baseline, 21% of the MS group (n = 2,535) and 9% of the controls (n = 6,278) had depression. Women were the majority in both cohorts and were more likely than men to be depressed.
People with both MS and depression had an all-cause mortality rate of 10.3 cases per 100,000 person-years (95% confidence interval, 9.17-11.57), compared with 10.6 for people with MS without depression (95% CI, 9.99-11.21), 3.6 for people with depression but not MS (95% CI, 3.18-4.05), and 2.5 for people with neither condition (95% CI, 2.42-2.64). Compared with controls without depression, the 10-year hazard of all-cause mortality was increasingly greater in controls with depression (hazard ratio, 1.75; 95% CI, 1.59-1.91), people with MS but not depression (HR, 3.88; 95% CI, 3.66-4.10), and people with MS and depression (HR, 5.43; 95% CI, 4.88-5.96). Overall, 14% of the observed effect on mortality was attributable to the interaction between MS status and depression.
As for vascular diseases, people with MS had an increased risk regardless of their depression status. That said, people with MS and depression (HR, 3.30; 95% CI, 2.37-4.23) had a notably higher risk than people with MS and no depression (HR, 1.48; 95% CI, 1.23-1.74). Women with MS and depression also had a greater risk of vascular disease than women with MS and no depression, while men with MS did not have significantly different risks of acute coronary syndrome or composite macrovascular disease than those in the control group who did not suffer from depression.
Does treating depression decrease the likelihood of vascular disease?
“The take-home message for me is the importance of treating depression in this population, in which we see it with great regularity,” Joseph Berger, MD, professor of neurology and associate chief of the multiple sclerosis division at the University of Pennsylvania, Philadelphia, said in an interview. “The question that I have is: If you treat depression in an individual with MS or an individual who is simply depressed and thus at risk for the subsequent development of vascular disease, does it decrease the likelihood of their subsequent development of vascular disease in comparison to had you not?
“I presume it does,” he added, noting that “the theories underlying why depression would increase one’s risk of subsequent vascular disease are enumerated by the authors, including such things as increased inflammation. Now, the inflammation may be contributing to the depression, or the depression may be contributing to the inflammation; it may be one of those chicken-and-egg scenarios. But if you decrease the depression, do you thereby decrease the inflammation, which has a pernicious effect on endothelial cells and increases one’s vascular risk?
“Alternatively, lifestyle in depressed patients is also altered,” he said. “They’re far less likely to engage in exercise, healthy habits, and healthy diets, and more likely perhaps to smoke. These all need to be addressed, but this study certainly gives you a greater impetus as a MS neurologist to address the issue of depression, realizing that there is also this comorbidity of vascular disease.”
Evaluating the biological interaction between MS and depression
Based on this and other studies, the joint effect of MS and depression on all-cause mortality may qualify as a biological interaction, Amber Salter, PhD, of the University of Texas Southwestern Medical Center, Dallas, wrote in an accompanying editorial.
“Biological interactions consider whether the joint effect of two factors follow an additive pattern, or the joint effect of two factors is greater than the sum of the individual effects for each factor alone,” she wrote. And though the interaction was not found to be present for vascular disease and cardiovascular mortality, it was for all-cause mortality.
“When warranted, the evaluation of biological interactions in future studies should be considered to provide insight on target subpopulations for interventions or test for potential mechanistic forms of interaction,” she added.
Dr. Salter highlighted the study’s strengths, including a large sample size and six controls matched to each MS patient. She also stated that the researchers’ inability to control for risk factors like body mass index and physical activity means the 14% increase in mortality “may not be a large absolute increase in mortality when other covariates cannot be considered.” In addition, their lack of data on suicide – and its association with depression – offers up the possibility that increases in mortality could be tied to a “potentially modifiable risk” as opposed to a biologically increased one.
In acknowledging their study’s limitations, the authors stated that body mass index, though an important vascular risk factor, has a “modest” association with mortality, and that the average annual suicide rate in the MS population – though higher than in the non-MS population – is still “relatively low.”
Two of the authors disclosed receiving support, including grants and research funding, from various institutions and organizations in the United Kingdom, the United States, and Canada, as well as several pharmaceutical companies. Dr. Salter reported no relevant disclosures.
, a new study has found. “The effects of depression and MS on all-cause mortality are synergistic,” wrote lead author Raffaele Palladino, MD, PhD, research associate, faculty of medicine, Imperial College London.
The study was published in Neurology.
To assess the association between depression, vascular disease, and death in patients with MS, the researchers launched a population-based retrospective cohort study that reviewed English medical records from January 1987 to December 2018 and matched people with and without MS. Ultimately, 12,251 people with MS were matched with 72,572 controls. At baseline, 21% of the MS group (n = 2,535) and 9% of the controls (n = 6,278) had depression. Women were the majority in both cohorts and were more likely than men to be depressed.
People with both MS and depression had an all-cause mortality rate of 10.3 cases per 100,000 person-years (95% confidence interval, 9.17-11.57), compared with 10.6 for people with MS without depression (95% CI, 9.99-11.21), 3.6 for people with depression but not MS (95% CI, 3.18-4.05), and 2.5 for people with neither condition (95% CI, 2.42-2.64). Compared with controls without depression, the 10-year hazard of all-cause mortality was increasingly greater in controls with depression (hazard ratio, 1.75; 95% CI, 1.59-1.91), people with MS but not depression (HR, 3.88; 95% CI, 3.66-4.10), and people with MS and depression (HR, 5.43; 95% CI, 4.88-5.96). Overall, 14% of the observed effect on mortality was attributable to the interaction between MS status and depression.
As for vascular diseases, people with MS had an increased risk regardless of their depression status. That said, people with MS and depression (HR, 3.30; 95% CI, 2.37-4.23) had a notably higher risk than people with MS and no depression (HR, 1.48; 95% CI, 1.23-1.74). Women with MS and depression also had a greater risk of vascular disease than women with MS and no depression, while men with MS did not have significantly different risks of acute coronary syndrome or composite macrovascular disease than those in the control group who did not suffer from depression.
Does treating depression decrease the likelihood of vascular disease?
“The take-home message for me is the importance of treating depression in this population, in which we see it with great regularity,” Joseph Berger, MD, professor of neurology and associate chief of the multiple sclerosis division at the University of Pennsylvania, Philadelphia, said in an interview. “The question that I have is: If you treat depression in an individual with MS or an individual who is simply depressed and thus at risk for the subsequent development of vascular disease, does it decrease the likelihood of their subsequent development of vascular disease in comparison to had you not?
“I presume it does,” he added, noting that “the theories underlying why depression would increase one’s risk of subsequent vascular disease are enumerated by the authors, including such things as increased inflammation. Now, the inflammation may be contributing to the depression, or the depression may be contributing to the inflammation; it may be one of those chicken-and-egg scenarios. But if you decrease the depression, do you thereby decrease the inflammation, which has a pernicious effect on endothelial cells and increases one’s vascular risk?
“Alternatively, lifestyle in depressed patients is also altered,” he said. “They’re far less likely to engage in exercise, healthy habits, and healthy diets, and more likely perhaps to smoke. These all need to be addressed, but this study certainly gives you a greater impetus as a MS neurologist to address the issue of depression, realizing that there is also this comorbidity of vascular disease.”
Evaluating the biological interaction between MS and depression
Based on this and other studies, the joint effect of MS and depression on all-cause mortality may qualify as a biological interaction, Amber Salter, PhD, of the University of Texas Southwestern Medical Center, Dallas, wrote in an accompanying editorial.
“Biological interactions consider whether the joint effect of two factors follow an additive pattern, or the joint effect of two factors is greater than the sum of the individual effects for each factor alone,” she wrote. And though the interaction was not found to be present for vascular disease and cardiovascular mortality, it was for all-cause mortality.
“When warranted, the evaluation of biological interactions in future studies should be considered to provide insight on target subpopulations for interventions or test for potential mechanistic forms of interaction,” she added.
Dr. Salter highlighted the study’s strengths, including a large sample size and six controls matched to each MS patient. She also stated that the researchers’ inability to control for risk factors like body mass index and physical activity means the 14% increase in mortality “may not be a large absolute increase in mortality when other covariates cannot be considered.” In addition, their lack of data on suicide – and its association with depression – offers up the possibility that increases in mortality could be tied to a “potentially modifiable risk” as opposed to a biologically increased one.
In acknowledging their study’s limitations, the authors stated that body mass index, though an important vascular risk factor, has a “modest” association with mortality, and that the average annual suicide rate in the MS population – though higher than in the non-MS population – is still “relatively low.”
Two of the authors disclosed receiving support, including grants and research funding, from various institutions and organizations in the United Kingdom, the United States, and Canada, as well as several pharmaceutical companies. Dr. Salter reported no relevant disclosures.
, a new study has found. “The effects of depression and MS on all-cause mortality are synergistic,” wrote lead author Raffaele Palladino, MD, PhD, research associate, faculty of medicine, Imperial College London.
The study was published in Neurology.
To assess the association between depression, vascular disease, and death in patients with MS, the researchers launched a population-based retrospective cohort study that reviewed English medical records from January 1987 to December 2018 and matched people with and without MS. Ultimately, 12,251 people with MS were matched with 72,572 controls. At baseline, 21% of the MS group (n = 2,535) and 9% of the controls (n = 6,278) had depression. Women were the majority in both cohorts and were more likely than men to be depressed.
People with both MS and depression had an all-cause mortality rate of 10.3 cases per 100,000 person-years (95% confidence interval, 9.17-11.57), compared with 10.6 for people with MS without depression (95% CI, 9.99-11.21), 3.6 for people with depression but not MS (95% CI, 3.18-4.05), and 2.5 for people with neither condition (95% CI, 2.42-2.64). Compared with controls without depression, the 10-year hazard of all-cause mortality was increasingly greater in controls with depression (hazard ratio, 1.75; 95% CI, 1.59-1.91), people with MS but not depression (HR, 3.88; 95% CI, 3.66-4.10), and people with MS and depression (HR, 5.43; 95% CI, 4.88-5.96). Overall, 14% of the observed effect on mortality was attributable to the interaction between MS status and depression.
As for vascular diseases, people with MS had an increased risk regardless of their depression status. That said, people with MS and depression (HR, 3.30; 95% CI, 2.37-4.23) had a notably higher risk than people with MS and no depression (HR, 1.48; 95% CI, 1.23-1.74). Women with MS and depression also had a greater risk of vascular disease than women with MS and no depression, while men with MS did not have significantly different risks of acute coronary syndrome or composite macrovascular disease than those in the control group who did not suffer from depression.
Does treating depression decrease the likelihood of vascular disease?
“The take-home message for me is the importance of treating depression in this population, in which we see it with great regularity,” Joseph Berger, MD, professor of neurology and associate chief of the multiple sclerosis division at the University of Pennsylvania, Philadelphia, said in an interview. “The question that I have is: If you treat depression in an individual with MS or an individual who is simply depressed and thus at risk for the subsequent development of vascular disease, does it decrease the likelihood of their subsequent development of vascular disease in comparison to had you not?
“I presume it does,” he added, noting that “the theories underlying why depression would increase one’s risk of subsequent vascular disease are enumerated by the authors, including such things as increased inflammation. Now, the inflammation may be contributing to the depression, or the depression may be contributing to the inflammation; it may be one of those chicken-and-egg scenarios. But if you decrease the depression, do you thereby decrease the inflammation, which has a pernicious effect on endothelial cells and increases one’s vascular risk?
“Alternatively, lifestyle in depressed patients is also altered,” he said. “They’re far less likely to engage in exercise, healthy habits, and healthy diets, and more likely perhaps to smoke. These all need to be addressed, but this study certainly gives you a greater impetus as a MS neurologist to address the issue of depression, realizing that there is also this comorbidity of vascular disease.”
Evaluating the biological interaction between MS and depression
Based on this and other studies, the joint effect of MS and depression on all-cause mortality may qualify as a biological interaction, Amber Salter, PhD, of the University of Texas Southwestern Medical Center, Dallas, wrote in an accompanying editorial.
“Biological interactions consider whether the joint effect of two factors follow an additive pattern, or the joint effect of two factors is greater than the sum of the individual effects for each factor alone,” she wrote. And though the interaction was not found to be present for vascular disease and cardiovascular mortality, it was for all-cause mortality.
“When warranted, the evaluation of biological interactions in future studies should be considered to provide insight on target subpopulations for interventions or test for potential mechanistic forms of interaction,” she added.
Dr. Salter highlighted the study’s strengths, including a large sample size and six controls matched to each MS patient. She also stated that the researchers’ inability to control for risk factors like body mass index and physical activity means the 14% increase in mortality “may not be a large absolute increase in mortality when other covariates cannot be considered.” In addition, their lack of data on suicide – and its association with depression – offers up the possibility that increases in mortality could be tied to a “potentially modifiable risk” as opposed to a biologically increased one.
In acknowledging their study’s limitations, the authors stated that body mass index, though an important vascular risk factor, has a “modest” association with mortality, and that the average annual suicide rate in the MS population – though higher than in the non-MS population – is still “relatively low.”
Two of the authors disclosed receiving support, including grants and research funding, from various institutions and organizations in the United Kingdom, the United States, and Canada, as well as several pharmaceutical companies. Dr. Salter reported no relevant disclosures.
FROM NEUROLOGY
COVID-clogged ICUs ‘terrify’ those with chronic or emergency illness
Jessica Gosnell, MD, 41, from Portland, Oregon, lives daily with the knowledge that her rare disease — a form of hereditary angioedema — could cause a sudden, severe swelling in her throat that could require quick intubation and land her in an intensive care unit (ICU) for days.
“I’ve been hospitalized for throat swells three times in the last year,” she said in an interview.
Dr. Gosnell no longer practices medicine because of a combination of illnesses, but lives with her husband, Andrew, and two young children, and said they are all “terrified” she will have to go to the hospital amid a COVID-19 surge that had shrunk the number of available ICU beds to 152 from 780 in Oregon as of Aug. 30. Thirty percent of the beds are in use for patients with COVID-19.
She said her life depends on being near hospitals that have ICUs and having access to highly specialized medications, one of which can cost up to $50,000 for the rescue dose.
Her fear has her “literally living bedbound.” In addition to hereditary angioedema, she has Ehlers-Danlos syndrome, which weakens connective tissue. She wears a cervical collar 24/7 to keep from tearing tissues, as any tissue injury can trigger a swell.
Patients worry there won’t be room
As ICU beds in most states are filling with COVID-19 patients as the Delta variant spreads, fears are rising among people like Dr. Gosnell, who have chronic conditions and diseases with unpredictable emergency visits, who worry that if they need emergency care there won’t be room.
As of Aug. 30, in the United States, 79% of ICU beds nationally were in use, 30% of them for COVID-19 patients, according to the U.S. Department of Health and Human Services.
In individual states, the picture is dire. Alabama has fewer than 10% of its ICU beds open across the entire state. In Florida, 93% of ICU beds are filled, 53% of them with COVID patients. In Louisiana, 87% of beds were already in use, 45% of them with COVID patients, just as category 4 hurricane Ida smashed into the coastline on Aug. 29.
News reports have told of people transported and airlifted as hospitals reach capacity.
In Bellville, Tex., U.S. Army veteran Daniel Wilkinson needed advanced care for gallstone pancreatitis that normally would take 30 minutes to treat, his Bellville doctor, Hasan Kakli, MD, told CBS News.
Mr. Wilkinson’s house was three doors from Bellville Hospital, but the hospital was not equipped to treat the condition. Calls to other hospitals found the same answer: no empty ICU beds. After a 7-hour wait on a stretcher, he was airlifted to a Veterans Affairs hospital in Houston, but it was too late. He died on August 22 at age 46.
Dr. Kakli said, “I’ve never lost a patient with this diagnosis. Ever. I’m scared that the next patient I see is someone that I can’t get to where they need to get to. We are playing musical chairs with 100 people and 10 chairs. When the music stops, what happens?”
Also in Texas in August, Joe Valdez, who was shot six times as an unlucky bystander in a domestic dispute, waited for more than a week for surgery at Ben Taub Hospital in Houston, which was over capacity with COVID patients, the Washington Post reported.
Others with chronic diseases fear needing emergency services or even entering a hospital for regular care with the COVID surge.
Nicole Seefeldt, 44, from Easton, Penn., who had a double-lung transplant in 2016, said that she hasn’t been able to see her lung transplant specialists in Philadelphia — an hour-and-a-half drive — for almost 2 years because of fear of contracting COVID. Before the pandemic, she made the trip almost weekly.
“I protect my lungs like they’re children,” she said.
She relies on her local hospital for care, but has put off some needed care, such as a colonoscopy, and has relied on telemedicine because she wants to limit her hospital exposure.
Ms. Seefeldt now faces an eventual kidney transplant, as her kidney function has been reduced to 20%. In the meantime, she worries she will need emergency care for either her lungs or kidneys.
“For those of us who are chronically ill or disabled, what if we have an emergency that is not COVID-related? Are we going to be able to get a bed? Are we going to be able to get treatment? It’s not just COVID patients who come to the [emergency room],” she said.
A pandemic problem
Paul E. Casey, MD, MBA, chief medical officer at Rush University Medical Center in Chicago, said that high vaccination rates in Chicago have helped Rush continue to accommodate both non-COVID and COVID patients in the emergency department.
Though the hospital treated a large volume of COVID patients, “The vast majority of people we see and did see through the pandemic were non-COVID patents,” he said.
Dr. Casey said that in the first wave the hospital noticed a concerning drop in patients coming in for strokes and heart attacks — “things we knew hadn’t gone away.”
And the data backs it up. Over the course of the pandemic, the Centers for Disease Control and Prevention’s National Health Interview Survey found that the percentage of Americans who reported seeing a doctor or health professional fell from 85% at the end of 2019 to about 80% in the first three months of 2021. The survey did not differentiate between in-person visits and telehealth appointments.
Medical practices and patients themselves postponed elective procedures and delayed routine visits during the early months of the crisis.
Patients also reported staying away from hospitals’ emergency departments throughout the pandemic. At the end of 2019, 22% of respondents reported visiting an emergency department in the past year. That dropped to 17% by the end of 2020, and was at 17.7% in the first 3 months of 2021.
Dr. Casey said that, in his hospital’s case, clear messaging became very important to assure patients it was safe to come back. And the message is still critical.
“We want to be loud and clear that patients should continue to seek care for those conditions,” Dr. Casey said. “Deferring healthcare only comes with the long-term sequelae of disease left untreated so we want people to be as proactive in seeking care as they always would be.”
In some cases, fears of entering emergency rooms because of excess patients and risk for infection are keeping some patients from seeking necessary care for minor injuries.
Jim Rickert, MD, an orthopedic surgeon with Indiana University Health in Bloomington, said that some of his patients have expressed fears of coming into the hospital for fractures.
Some patients, particularly elderly patients, he said, are having falls and fractures and wearing slings or braces at home rather than going into the hospital for injuries that need immediate attention.
Bones start healing incorrectly, Dr. Rickert said, and the correction becomes much more difficult.
Plea for vaccinations
Dr. Gosnell made a plea posted on her neighborhood news forum for people to get COVID vaccinations.
“It seems to me it’s easy for other people who are not in bodies like mine to take health for granted,” she said. “But there are a lot of us who live in very fragile bodies and our entire life is at the intersection of us and getting healthcare treatment. Small complications to getting treatment can be life altering.”
Dr. Gosnell, Ms. Seefeldt, Dr. Casey, and Dr. Rickert reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Jessica Gosnell, MD, 41, from Portland, Oregon, lives daily with the knowledge that her rare disease — a form of hereditary angioedema — could cause a sudden, severe swelling in her throat that could require quick intubation and land her in an intensive care unit (ICU) for days.
“I’ve been hospitalized for throat swells three times in the last year,” she said in an interview.
Dr. Gosnell no longer practices medicine because of a combination of illnesses, but lives with her husband, Andrew, and two young children, and said they are all “terrified” she will have to go to the hospital amid a COVID-19 surge that had shrunk the number of available ICU beds to 152 from 780 in Oregon as of Aug. 30. Thirty percent of the beds are in use for patients with COVID-19.
She said her life depends on being near hospitals that have ICUs and having access to highly specialized medications, one of which can cost up to $50,000 for the rescue dose.
Her fear has her “literally living bedbound.” In addition to hereditary angioedema, she has Ehlers-Danlos syndrome, which weakens connective tissue. She wears a cervical collar 24/7 to keep from tearing tissues, as any tissue injury can trigger a swell.
Patients worry there won’t be room
As ICU beds in most states are filling with COVID-19 patients as the Delta variant spreads, fears are rising among people like Dr. Gosnell, who have chronic conditions and diseases with unpredictable emergency visits, who worry that if they need emergency care there won’t be room.
As of Aug. 30, in the United States, 79% of ICU beds nationally were in use, 30% of them for COVID-19 patients, according to the U.S. Department of Health and Human Services.
In individual states, the picture is dire. Alabama has fewer than 10% of its ICU beds open across the entire state. In Florida, 93% of ICU beds are filled, 53% of them with COVID patients. In Louisiana, 87% of beds were already in use, 45% of them with COVID patients, just as category 4 hurricane Ida smashed into the coastline on Aug. 29.
News reports have told of people transported and airlifted as hospitals reach capacity.
In Bellville, Tex., U.S. Army veteran Daniel Wilkinson needed advanced care for gallstone pancreatitis that normally would take 30 minutes to treat, his Bellville doctor, Hasan Kakli, MD, told CBS News.
Mr. Wilkinson’s house was three doors from Bellville Hospital, but the hospital was not equipped to treat the condition. Calls to other hospitals found the same answer: no empty ICU beds. After a 7-hour wait on a stretcher, he was airlifted to a Veterans Affairs hospital in Houston, but it was too late. He died on August 22 at age 46.
Dr. Kakli said, “I’ve never lost a patient with this diagnosis. Ever. I’m scared that the next patient I see is someone that I can’t get to where they need to get to. We are playing musical chairs with 100 people and 10 chairs. When the music stops, what happens?”
Also in Texas in August, Joe Valdez, who was shot six times as an unlucky bystander in a domestic dispute, waited for more than a week for surgery at Ben Taub Hospital in Houston, which was over capacity with COVID patients, the Washington Post reported.
Others with chronic diseases fear needing emergency services or even entering a hospital for regular care with the COVID surge.
Nicole Seefeldt, 44, from Easton, Penn., who had a double-lung transplant in 2016, said that she hasn’t been able to see her lung transplant specialists in Philadelphia — an hour-and-a-half drive — for almost 2 years because of fear of contracting COVID. Before the pandemic, she made the trip almost weekly.
“I protect my lungs like they’re children,” she said.
She relies on her local hospital for care, but has put off some needed care, such as a colonoscopy, and has relied on telemedicine because she wants to limit her hospital exposure.
Ms. Seefeldt now faces an eventual kidney transplant, as her kidney function has been reduced to 20%. In the meantime, she worries she will need emergency care for either her lungs or kidneys.
“For those of us who are chronically ill or disabled, what if we have an emergency that is not COVID-related? Are we going to be able to get a bed? Are we going to be able to get treatment? It’s not just COVID patients who come to the [emergency room],” she said.
A pandemic problem
Paul E. Casey, MD, MBA, chief medical officer at Rush University Medical Center in Chicago, said that high vaccination rates in Chicago have helped Rush continue to accommodate both non-COVID and COVID patients in the emergency department.
Though the hospital treated a large volume of COVID patients, “The vast majority of people we see and did see through the pandemic were non-COVID patents,” he said.
Dr. Casey said that in the first wave the hospital noticed a concerning drop in patients coming in for strokes and heart attacks — “things we knew hadn’t gone away.”
And the data backs it up. Over the course of the pandemic, the Centers for Disease Control and Prevention’s National Health Interview Survey found that the percentage of Americans who reported seeing a doctor or health professional fell from 85% at the end of 2019 to about 80% in the first three months of 2021. The survey did not differentiate between in-person visits and telehealth appointments.
Medical practices and patients themselves postponed elective procedures and delayed routine visits during the early months of the crisis.
Patients also reported staying away from hospitals’ emergency departments throughout the pandemic. At the end of 2019, 22% of respondents reported visiting an emergency department in the past year. That dropped to 17% by the end of 2020, and was at 17.7% in the first 3 months of 2021.
Dr. Casey said that, in his hospital’s case, clear messaging became very important to assure patients it was safe to come back. And the message is still critical.
“We want to be loud and clear that patients should continue to seek care for those conditions,” Dr. Casey said. “Deferring healthcare only comes with the long-term sequelae of disease left untreated so we want people to be as proactive in seeking care as they always would be.”
In some cases, fears of entering emergency rooms because of excess patients and risk for infection are keeping some patients from seeking necessary care for minor injuries.
Jim Rickert, MD, an orthopedic surgeon with Indiana University Health in Bloomington, said that some of his patients have expressed fears of coming into the hospital for fractures.
Some patients, particularly elderly patients, he said, are having falls and fractures and wearing slings or braces at home rather than going into the hospital for injuries that need immediate attention.
Bones start healing incorrectly, Dr. Rickert said, and the correction becomes much more difficult.
Plea for vaccinations
Dr. Gosnell made a plea posted on her neighborhood news forum for people to get COVID vaccinations.
“It seems to me it’s easy for other people who are not in bodies like mine to take health for granted,” she said. “But there are a lot of us who live in very fragile bodies and our entire life is at the intersection of us and getting healthcare treatment. Small complications to getting treatment can be life altering.”
Dr. Gosnell, Ms. Seefeldt, Dr. Casey, and Dr. Rickert reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Jessica Gosnell, MD, 41, from Portland, Oregon, lives daily with the knowledge that her rare disease — a form of hereditary angioedema — could cause a sudden, severe swelling in her throat that could require quick intubation and land her in an intensive care unit (ICU) for days.
“I’ve been hospitalized for throat swells three times in the last year,” she said in an interview.
Dr. Gosnell no longer practices medicine because of a combination of illnesses, but lives with her husband, Andrew, and two young children, and said they are all “terrified” she will have to go to the hospital amid a COVID-19 surge that had shrunk the number of available ICU beds to 152 from 780 in Oregon as of Aug. 30. Thirty percent of the beds are in use for patients with COVID-19.
She said her life depends on being near hospitals that have ICUs and having access to highly specialized medications, one of which can cost up to $50,000 for the rescue dose.
Her fear has her “literally living bedbound.” In addition to hereditary angioedema, she has Ehlers-Danlos syndrome, which weakens connective tissue. She wears a cervical collar 24/7 to keep from tearing tissues, as any tissue injury can trigger a swell.
Patients worry there won’t be room
As ICU beds in most states are filling with COVID-19 patients as the Delta variant spreads, fears are rising among people like Dr. Gosnell, who have chronic conditions and diseases with unpredictable emergency visits, who worry that if they need emergency care there won’t be room.
As of Aug. 30, in the United States, 79% of ICU beds nationally were in use, 30% of them for COVID-19 patients, according to the U.S. Department of Health and Human Services.
In individual states, the picture is dire. Alabama has fewer than 10% of its ICU beds open across the entire state. In Florida, 93% of ICU beds are filled, 53% of them with COVID patients. In Louisiana, 87% of beds were already in use, 45% of them with COVID patients, just as category 4 hurricane Ida smashed into the coastline on Aug. 29.
News reports have told of people transported and airlifted as hospitals reach capacity.
In Bellville, Tex., U.S. Army veteran Daniel Wilkinson needed advanced care for gallstone pancreatitis that normally would take 30 minutes to treat, his Bellville doctor, Hasan Kakli, MD, told CBS News.
Mr. Wilkinson’s house was three doors from Bellville Hospital, but the hospital was not equipped to treat the condition. Calls to other hospitals found the same answer: no empty ICU beds. After a 7-hour wait on a stretcher, he was airlifted to a Veterans Affairs hospital in Houston, but it was too late. He died on August 22 at age 46.
Dr. Kakli said, “I’ve never lost a patient with this diagnosis. Ever. I’m scared that the next patient I see is someone that I can’t get to where they need to get to. We are playing musical chairs with 100 people and 10 chairs. When the music stops, what happens?”
Also in Texas in August, Joe Valdez, who was shot six times as an unlucky bystander in a domestic dispute, waited for more than a week for surgery at Ben Taub Hospital in Houston, which was over capacity with COVID patients, the Washington Post reported.
Others with chronic diseases fear needing emergency services or even entering a hospital for regular care with the COVID surge.
Nicole Seefeldt, 44, from Easton, Penn., who had a double-lung transplant in 2016, said that she hasn’t been able to see her lung transplant specialists in Philadelphia — an hour-and-a-half drive — for almost 2 years because of fear of contracting COVID. Before the pandemic, she made the trip almost weekly.
“I protect my lungs like they’re children,” she said.
She relies on her local hospital for care, but has put off some needed care, such as a colonoscopy, and has relied on telemedicine because she wants to limit her hospital exposure.
Ms. Seefeldt now faces an eventual kidney transplant, as her kidney function has been reduced to 20%. In the meantime, she worries she will need emergency care for either her lungs or kidneys.
“For those of us who are chronically ill or disabled, what if we have an emergency that is not COVID-related? Are we going to be able to get a bed? Are we going to be able to get treatment? It’s not just COVID patients who come to the [emergency room],” she said.
A pandemic problem
Paul E. Casey, MD, MBA, chief medical officer at Rush University Medical Center in Chicago, said that high vaccination rates in Chicago have helped Rush continue to accommodate both non-COVID and COVID patients in the emergency department.
Though the hospital treated a large volume of COVID patients, “The vast majority of people we see and did see through the pandemic were non-COVID patents,” he said.
Dr. Casey said that in the first wave the hospital noticed a concerning drop in patients coming in for strokes and heart attacks — “things we knew hadn’t gone away.”
And the data backs it up. Over the course of the pandemic, the Centers for Disease Control and Prevention’s National Health Interview Survey found that the percentage of Americans who reported seeing a doctor or health professional fell from 85% at the end of 2019 to about 80% in the first three months of 2021. The survey did not differentiate between in-person visits and telehealth appointments.
Medical practices and patients themselves postponed elective procedures and delayed routine visits during the early months of the crisis.
Patients also reported staying away from hospitals’ emergency departments throughout the pandemic. At the end of 2019, 22% of respondents reported visiting an emergency department in the past year. That dropped to 17% by the end of 2020, and was at 17.7% in the first 3 months of 2021.
Dr. Casey said that, in his hospital’s case, clear messaging became very important to assure patients it was safe to come back. And the message is still critical.
“We want to be loud and clear that patients should continue to seek care for those conditions,” Dr. Casey said. “Deferring healthcare only comes with the long-term sequelae of disease left untreated so we want people to be as proactive in seeking care as they always would be.”
In some cases, fears of entering emergency rooms because of excess patients and risk for infection are keeping some patients from seeking necessary care for minor injuries.
Jim Rickert, MD, an orthopedic surgeon with Indiana University Health in Bloomington, said that some of his patients have expressed fears of coming into the hospital for fractures.
Some patients, particularly elderly patients, he said, are having falls and fractures and wearing slings or braces at home rather than going into the hospital for injuries that need immediate attention.
Bones start healing incorrectly, Dr. Rickert said, and the correction becomes much more difficult.
Plea for vaccinations
Dr. Gosnell made a plea posted on her neighborhood news forum for people to get COVID vaccinations.
“It seems to me it’s easy for other people who are not in bodies like mine to take health for granted,” she said. “But there are a lot of us who live in very fragile bodies and our entire life is at the intersection of us and getting healthcare treatment. Small complications to getting treatment can be life altering.”
Dr. Gosnell, Ms. Seefeldt, Dr. Casey, and Dr. Rickert reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Good news is no news
I’ve become kind of a hermit. At least, as much as someone who drives a car, goes to the store, and sees patients 5 days a week can be.
It seemed like the news was always dominated by another senseless mass shooting, an increasingly dysfunctional government, an environmental crisis going to hell (with us along for the ride), and endlessly escalating inflammatory political pundits (who always seem to get far more coverage than they deserve. Personally, I don’t think they deserve any, regardless of which side they’re on).
As things got worse, I became more obsessed with reading about them. I’d read the news on my iPad before bed, and when I first woke up, and several times a day at work.
It was driving me nuts. Perhaps it’s my personality to worry too much about these things. I was losing sleep and wasting valuable time at home and work.
I came to a decision. It was time to stop.
I deleted all my news apps and bookmarks. I’d go to lengths to avoid all news. If in a restaurant where a TV was on, I’d sit with my back to it. I stopped going to the doctor’s lounge (with its TVs constantly on a news network). When I had to wait to pick up my car at the shop, I sat outside and played games on my phone rather than use the waiting room with its blaring TV.
This doesn’t mean I’m completely unplugged. I still read interesting stories about science or history. I check the weather forecast. Family members occasionally send me amusing articles that I look at. I read online medical articles. I use the Internet to look things up. But I make a conscious effort not to look at headlines or other stuff on the periphery.
I’m not stupid or naive enough to believe that the insanity and acrimony won’t continue happening. But the bottom line is that obviously I can’t control or change it.
So I try not to let it upset me any more. If the only way to do that is to completely not read it and not know, I’m fine with that. After almost 50 years of reading news (I started when I was about 7, with my parent’s subscription to Newsweek), I’ve completely stopped.
Instead of reading the day’s events I now mindlessly play Toon Blast or read history books on my iPad before bed. Perhaps a waste of time, but no more so than getting upset, losing sleep, getting ulcers, and going gray over things I can’t control.
I have more time in the morning and my work day, since I’m not spending it scanning headlines.
Now my world is restricted to my family, friends, dogs, and job. Things I enjoy and have control over. Those around me have been told that I wish to discuss nothing about current events, and they respect that.
Now I sleep better, worry less (at least about those things), and have more time to focus on my immediate world. And that’s fine with me. It may be the way of the ostrich, but at this point in my life, that’s what I prefer.
Dr. Block has a solo neurology practice in Scottsdale, Ariz.
I’ve become kind of a hermit. At least, as much as someone who drives a car, goes to the store, and sees patients 5 days a week can be.
It seemed like the news was always dominated by another senseless mass shooting, an increasingly dysfunctional government, an environmental crisis going to hell (with us along for the ride), and endlessly escalating inflammatory political pundits (who always seem to get far more coverage than they deserve. Personally, I don’t think they deserve any, regardless of which side they’re on).
As things got worse, I became more obsessed with reading about them. I’d read the news on my iPad before bed, and when I first woke up, and several times a day at work.
It was driving me nuts. Perhaps it’s my personality to worry too much about these things. I was losing sleep and wasting valuable time at home and work.
I came to a decision. It was time to stop.
I deleted all my news apps and bookmarks. I’d go to lengths to avoid all news. If in a restaurant where a TV was on, I’d sit with my back to it. I stopped going to the doctor’s lounge (with its TVs constantly on a news network). When I had to wait to pick up my car at the shop, I sat outside and played games on my phone rather than use the waiting room with its blaring TV.
This doesn’t mean I’m completely unplugged. I still read interesting stories about science or history. I check the weather forecast. Family members occasionally send me amusing articles that I look at. I read online medical articles. I use the Internet to look things up. But I make a conscious effort not to look at headlines or other stuff on the periphery.
I’m not stupid or naive enough to believe that the insanity and acrimony won’t continue happening. But the bottom line is that obviously I can’t control or change it.
So I try not to let it upset me any more. If the only way to do that is to completely not read it and not know, I’m fine with that. After almost 50 years of reading news (I started when I was about 7, with my parent’s subscription to Newsweek), I’ve completely stopped.
Instead of reading the day’s events I now mindlessly play Toon Blast or read history books on my iPad before bed. Perhaps a waste of time, but no more so than getting upset, losing sleep, getting ulcers, and going gray over things I can’t control.
I have more time in the morning and my work day, since I’m not spending it scanning headlines.
Now my world is restricted to my family, friends, dogs, and job. Things I enjoy and have control over. Those around me have been told that I wish to discuss nothing about current events, and they respect that.
Now I sleep better, worry less (at least about those things), and have more time to focus on my immediate world. And that’s fine with me. It may be the way of the ostrich, but at this point in my life, that’s what I prefer.
Dr. Block has a solo neurology practice in Scottsdale, Ariz.
I’ve become kind of a hermit. At least, as much as someone who drives a car, goes to the store, and sees patients 5 days a week can be.
It seemed like the news was always dominated by another senseless mass shooting, an increasingly dysfunctional government, an environmental crisis going to hell (with us along for the ride), and endlessly escalating inflammatory political pundits (who always seem to get far more coverage than they deserve. Personally, I don’t think they deserve any, regardless of which side they’re on).
As things got worse, I became more obsessed with reading about them. I’d read the news on my iPad before bed, and when I first woke up, and several times a day at work.
It was driving me nuts. Perhaps it’s my personality to worry too much about these things. I was losing sleep and wasting valuable time at home and work.
I came to a decision. It was time to stop.
I deleted all my news apps and bookmarks. I’d go to lengths to avoid all news. If in a restaurant where a TV was on, I’d sit with my back to it. I stopped going to the doctor’s lounge (with its TVs constantly on a news network). When I had to wait to pick up my car at the shop, I sat outside and played games on my phone rather than use the waiting room with its blaring TV.
This doesn’t mean I’m completely unplugged. I still read interesting stories about science or history. I check the weather forecast. Family members occasionally send me amusing articles that I look at. I read online medical articles. I use the Internet to look things up. But I make a conscious effort not to look at headlines or other stuff on the periphery.
I’m not stupid or naive enough to believe that the insanity and acrimony won’t continue happening. But the bottom line is that obviously I can’t control or change it.
So I try not to let it upset me any more. If the only way to do that is to completely not read it and not know, I’m fine with that. After almost 50 years of reading news (I started when I was about 7, with my parent’s subscription to Newsweek), I’ve completely stopped.
Instead of reading the day’s events I now mindlessly play Toon Blast or read history books on my iPad before bed. Perhaps a waste of time, but no more so than getting upset, losing sleep, getting ulcers, and going gray over things I can’t control.
I have more time in the morning and my work day, since I’m not spending it scanning headlines.
Now my world is restricted to my family, friends, dogs, and job. Things I enjoy and have control over. Those around me have been told that I wish to discuss nothing about current events, and they respect that.
Now I sleep better, worry less (at least about those things), and have more time to focus on my immediate world. And that’s fine with me. It may be the way of the ostrich, but at this point in my life, that’s what I prefer.
Dr. Block has a solo neurology practice in Scottsdale, Ariz.
Emerging data point to underlying autoimmunity in ME/CFS
Emerging evidence suggests that autoimmunity plays a role in postinfectious myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and that targeting autoantibodies could be a promising treatment approach.
The same may also apply to many cases of “long COVID,” in which many of the symptoms overlap with those of ME/CFS, Carmen Scheibenbogen, MD, professor of clinical immunology and director of the Institute for Medical Immunology, Charité University Medicine, Berlin, said during the annual meeting of the International Association for Chronic Fatigue Syndrome/Myalgic Encephalomyelitis.
Several groups, including Dr. Scheibenbogen’s, have reported finding autoantibodies against neurotransmitter receptor antigens in people with ME/CFS. And, in a paper published in the Journal of Clinical Medicine the day that Dr. Scheibenbogen spoke at the meeting, her team reported significant correlations between autoantibodies to vasoregulative G-protein–coupled receptors and symptom severity, autonomic dysfunction, and disability among 116 patients with infection-triggered ME/CFS who were diagnosed using the symptom-based 2003 Canadian consensus criteria.
People with ME/CFS are also more likely to have genetic risk factors associated with autoimmunity and personal and/or family histories of autoimmune conditions. And, clinical trials have demonstrated early success with various immunomodulatory treatments in subsets of people with ME/CFS, including endoxan, rituximab, and immunoadsorption.
“We have evidence that ME/CFS is an autoantibody-mediated disease, and we have evidence that autoantibody targeting is effective in this disease. So far ... we have few and underfinanced clinical studies, but the good news is we have promising emerging treatment options,” Dr. Scheibenbogen said.
Asked to comment, ME/CFS expert Anthony L. Komaroff, MD, of Brigham and Women’s Hospital and Harvard Medical School, both in Boston, said: “There is already strong evidence that there are autoantibodies in ME/CFS. Dr. Scheibenbogen’s work is the latest and employs the latest technology. ... I would bet that autoantibodies to neural targets are likely to cause some of the symptoms of ME/CFS and some of the symptoms of long COVID.”
However, he cautioned, “that has not been proven, and even if it were proven you would have to demonstrate that treatments based on that theory worked.”
Dr. Komaroff said he views autoimmunity as a likely component of the ME/CFS spectrum, but not the only one. “My current view of this illness is that there’s a final common pathway in the brain that leads to the symptoms of the illness. But that final common pathway can be triggered by a variety of different things, one of which could be autoantibodies while another could be infection or inflammation in the brain.”
Emerging evidence points to autoimmunity
Dr. Scheibenbogen summarized the work published in this area over the past few years by her group and others.
In a comparison of ME/CFS patients with 201 healthy controls, significant associations were seen with two specific autoimmunity-related risk alleles only in the ME/CFS patients who reported acute onset of disease with an infection but not in those with ME/CFS without infection-triggered onset or the controls. Both genes play roles in regulating B- and T-cell activation.
Another recent study found associations with ME/CFS and major histocompatibility complex class II molecules, a typical feature of autoimmune diseases, in a comparison between 426 adult Norwegian ME/CFS patients who were diagnosed with the Canadian consensus criteria and 4,511 healthy, ethnically matched controls.
In a 2020 paper, Dr. Scheibenbogen and pharmacologist Klaus Wirth presented a “unifying hypothesis” of ME/CFS pathophysiology based on the finding of elevations in autoantibodies against beta2-adrenergic receptors and muscarinic acetylcholine receptors in some individuals with the condition. Since both of those receptors are important vasodilators, their functional disturbance would be expected to cause vasoconstriction and hypoxemia, which would explain many of the symptoms of ME/CFS. This mechanism would align with other findings of muscular and cerebral hypoperfusion that correlate with fatigue, particularly post exertion, as well as metabolic changes that are in line with the concepts of hypoxemia and ischemia.
Further evidence for vascular dysfunction in ME/CFS came from her group’s study finding evidence of peripheral endothelial dysfunction that was associated with symptom severity in 35 adult patients. “Vasoconstriction, hypovolemia, and release of vasoactive and algesic mediators is probably a key pathomechanism of the disease,” Dr. Scheibenbogen said.
Treatments: Will targeting autoantibodies work?
In the second part of her talk, Dr. Scheibenbogen summarized clinical trials of the following treatment approaches that involve targeting autoantibodies as a way to alleviate ME/CFS symptoms:
Rituximab: Work on infusions of the B-cell depleting agent has been conducted by Norwegian researchers beginning in 2011 with a small randomized trial and an open-label, phase 2 study in 2015, both showing clinical responses in ME/CFS. However, a subsequent phase 3, randomized clinical trial of 151 patients, again diagnosed using the Canadian criteria, was negative.
There are several possible explanations for this, Dr. Scheibenbogen noted. For one, the maintenance dose had to be reduced because of a lack of financial support. “This was probably critical. The lower dose was insufficient to adequately deplete B cells.” Also, there may have been a strong placebo response in the control group since they were being given better care than they normally would receive during the trial. “I think probably nobody will again do a rituximab trial. This was very disappointing for all of us. But, we still have other opportunities to follow this path,” she said.
Dr. Komaroff agreed. “I don’t think the failure of one drug that hits malignant B cells is proof against the autoimmune hypothesis per se. I think the evidence is that rituximab doesn’t work, but that doesn’t invalidate the autoimmunity hypothesis.”
Cyclophosphamide: The same Norwegian group also showed positive findings in an open-label, phase 2 trial of the immune-modifying drug cyclophosphamide in 22 of 40 patients. Interestingly, HLA risk alleles were much more common in responders than nonresponders, Dr. Scheibenbogen noted.
Immunoadsorption: This technique, similar to dialysis, involves separating out the blood plasma by centrifugation and removing IgG autoantibodies by a binding column, then returning the plasma back to the patient. It is used, primarily in Europe, to treat severe autoimmune diseases including dilative cardiomyopathy and refractory systemic lupus erythematosus (SLE).
Dr. Scheibenbogen’s group has conducted two studies of immunoadsorption in ME/CFS. In one, a 5-day procedure led to rapid symptom improvement in 7 of 10 patients, with sustained improvement in 3 patients after 2 years. Autoantibodies decreased rapidly in 9 of the 10 patients. In a follow-up study of five of the responders 2 years later, retreatment with a modified immunoadsorption protocol led to rapid and sustained improvement in four. Further study has been on hold because of the pandemic.
Next-gen IgG-targeting therapies: Another approach that could offer promise for ME/CFS involves therapies that block the Fc receptors of IgG. Several are in phase 1-3 trials for autoimmune conditions. One candidate drug, the Fc fragment efgartigimod, is currently in phase 3 trials for several conditions, including generalized myasthenia gravis, primary immune thrombocytopenia, and chronic inflammatory demyelinating polyneuropathy. Phase 3 trials are planned for the monoclonal antibody rozanolixizumab in those same conditions.
Newer-generation monoclonal antibodies targeting CD19 or CD20 that show benefit in various autoimmune conditions are another possibility for ME/CFS. These include ocrelizumab (Ocrevus), approved in the United States for treating relapsing and progressive multiple sclerosis and in trials for SLE; obinutuzumab (Gazyva), approved for treating lymphoma and also in development for SLE; and ublituximab, in phase 3 trials for multiple sclerosis.
“Most of them are more effective than rituximab,” Dr. Scheibenbogen noted, adding that “currently the data look quite promising. They are effective in different autoimmune diseases and they are quite well tolerated. There’s great hope now with COVID-19 that we can convince some companies to do such trials in ME/CFS as well.”
Dr. Scheibenbogen’s institution, the Charité Fatigue Center, has a patent for beta2-adrenergic receptor antibodies for diagnosing ME/CFS under her name together with Celltrend. Dr. Komaroff has received personal fees from Serimmune.
Emerging evidence suggests that autoimmunity plays a role in postinfectious myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and that targeting autoantibodies could be a promising treatment approach.
The same may also apply to many cases of “long COVID,” in which many of the symptoms overlap with those of ME/CFS, Carmen Scheibenbogen, MD, professor of clinical immunology and director of the Institute for Medical Immunology, Charité University Medicine, Berlin, said during the annual meeting of the International Association for Chronic Fatigue Syndrome/Myalgic Encephalomyelitis.
Several groups, including Dr. Scheibenbogen’s, have reported finding autoantibodies against neurotransmitter receptor antigens in people with ME/CFS. And, in a paper published in the Journal of Clinical Medicine the day that Dr. Scheibenbogen spoke at the meeting, her team reported significant correlations between autoantibodies to vasoregulative G-protein–coupled receptors and symptom severity, autonomic dysfunction, and disability among 116 patients with infection-triggered ME/CFS who were diagnosed using the symptom-based 2003 Canadian consensus criteria.
People with ME/CFS are also more likely to have genetic risk factors associated with autoimmunity and personal and/or family histories of autoimmune conditions. And, clinical trials have demonstrated early success with various immunomodulatory treatments in subsets of people with ME/CFS, including endoxan, rituximab, and immunoadsorption.
“We have evidence that ME/CFS is an autoantibody-mediated disease, and we have evidence that autoantibody targeting is effective in this disease. So far ... we have few and underfinanced clinical studies, but the good news is we have promising emerging treatment options,” Dr. Scheibenbogen said.
Asked to comment, ME/CFS expert Anthony L. Komaroff, MD, of Brigham and Women’s Hospital and Harvard Medical School, both in Boston, said: “There is already strong evidence that there are autoantibodies in ME/CFS. Dr. Scheibenbogen’s work is the latest and employs the latest technology. ... I would bet that autoantibodies to neural targets are likely to cause some of the symptoms of ME/CFS and some of the symptoms of long COVID.”
However, he cautioned, “that has not been proven, and even if it were proven you would have to demonstrate that treatments based on that theory worked.”
Dr. Komaroff said he views autoimmunity as a likely component of the ME/CFS spectrum, but not the only one. “My current view of this illness is that there’s a final common pathway in the brain that leads to the symptoms of the illness. But that final common pathway can be triggered by a variety of different things, one of which could be autoantibodies while another could be infection or inflammation in the brain.”
Emerging evidence points to autoimmunity
Dr. Scheibenbogen summarized the work published in this area over the past few years by her group and others.
In a comparison of ME/CFS patients with 201 healthy controls, significant associations were seen with two specific autoimmunity-related risk alleles only in the ME/CFS patients who reported acute onset of disease with an infection but not in those with ME/CFS without infection-triggered onset or the controls. Both genes play roles in regulating B- and T-cell activation.
Another recent study found associations with ME/CFS and major histocompatibility complex class II molecules, a typical feature of autoimmune diseases, in a comparison between 426 adult Norwegian ME/CFS patients who were diagnosed with the Canadian consensus criteria and 4,511 healthy, ethnically matched controls.
In a 2020 paper, Dr. Scheibenbogen and pharmacologist Klaus Wirth presented a “unifying hypothesis” of ME/CFS pathophysiology based on the finding of elevations in autoantibodies against beta2-adrenergic receptors and muscarinic acetylcholine receptors in some individuals with the condition. Since both of those receptors are important vasodilators, their functional disturbance would be expected to cause vasoconstriction and hypoxemia, which would explain many of the symptoms of ME/CFS. This mechanism would align with other findings of muscular and cerebral hypoperfusion that correlate with fatigue, particularly post exertion, as well as metabolic changes that are in line with the concepts of hypoxemia and ischemia.
Further evidence for vascular dysfunction in ME/CFS came from her group’s study finding evidence of peripheral endothelial dysfunction that was associated with symptom severity in 35 adult patients. “Vasoconstriction, hypovolemia, and release of vasoactive and algesic mediators is probably a key pathomechanism of the disease,” Dr. Scheibenbogen said.
Treatments: Will targeting autoantibodies work?
In the second part of her talk, Dr. Scheibenbogen summarized clinical trials of the following treatment approaches that involve targeting autoantibodies as a way to alleviate ME/CFS symptoms:
Rituximab: Work on infusions of the B-cell depleting agent has been conducted by Norwegian researchers beginning in 2011 with a small randomized trial and an open-label, phase 2 study in 2015, both showing clinical responses in ME/CFS. However, a subsequent phase 3, randomized clinical trial of 151 patients, again diagnosed using the Canadian criteria, was negative.
There are several possible explanations for this, Dr. Scheibenbogen noted. For one, the maintenance dose had to be reduced because of a lack of financial support. “This was probably critical. The lower dose was insufficient to adequately deplete B cells.” Also, there may have been a strong placebo response in the control group since they were being given better care than they normally would receive during the trial. “I think probably nobody will again do a rituximab trial. This was very disappointing for all of us. But, we still have other opportunities to follow this path,” she said.
Dr. Komaroff agreed. “I don’t think the failure of one drug that hits malignant B cells is proof against the autoimmune hypothesis per se. I think the evidence is that rituximab doesn’t work, but that doesn’t invalidate the autoimmunity hypothesis.”
Cyclophosphamide: The same Norwegian group also showed positive findings in an open-label, phase 2 trial of the immune-modifying drug cyclophosphamide in 22 of 40 patients. Interestingly, HLA risk alleles were much more common in responders than nonresponders, Dr. Scheibenbogen noted.
Immunoadsorption: This technique, similar to dialysis, involves separating out the blood plasma by centrifugation and removing IgG autoantibodies by a binding column, then returning the plasma back to the patient. It is used, primarily in Europe, to treat severe autoimmune diseases including dilative cardiomyopathy and refractory systemic lupus erythematosus (SLE).
Dr. Scheibenbogen’s group has conducted two studies of immunoadsorption in ME/CFS. In one, a 5-day procedure led to rapid symptom improvement in 7 of 10 patients, with sustained improvement in 3 patients after 2 years. Autoantibodies decreased rapidly in 9 of the 10 patients. In a follow-up study of five of the responders 2 years later, retreatment with a modified immunoadsorption protocol led to rapid and sustained improvement in four. Further study has been on hold because of the pandemic.
Next-gen IgG-targeting therapies: Another approach that could offer promise for ME/CFS involves therapies that block the Fc receptors of IgG. Several are in phase 1-3 trials for autoimmune conditions. One candidate drug, the Fc fragment efgartigimod, is currently in phase 3 trials for several conditions, including generalized myasthenia gravis, primary immune thrombocytopenia, and chronic inflammatory demyelinating polyneuropathy. Phase 3 trials are planned for the monoclonal antibody rozanolixizumab in those same conditions.
Newer-generation monoclonal antibodies targeting CD19 or CD20 that show benefit in various autoimmune conditions are another possibility for ME/CFS. These include ocrelizumab (Ocrevus), approved in the United States for treating relapsing and progressive multiple sclerosis and in trials for SLE; obinutuzumab (Gazyva), approved for treating lymphoma and also in development for SLE; and ublituximab, in phase 3 trials for multiple sclerosis.
“Most of them are more effective than rituximab,” Dr. Scheibenbogen noted, adding that “currently the data look quite promising. They are effective in different autoimmune diseases and they are quite well tolerated. There’s great hope now with COVID-19 that we can convince some companies to do such trials in ME/CFS as well.”
Dr. Scheibenbogen’s institution, the Charité Fatigue Center, has a patent for beta2-adrenergic receptor antibodies for diagnosing ME/CFS under her name together with Celltrend. Dr. Komaroff has received personal fees from Serimmune.
Emerging evidence suggests that autoimmunity plays a role in postinfectious myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and that targeting autoantibodies could be a promising treatment approach.
The same may also apply to many cases of “long COVID,” in which many of the symptoms overlap with those of ME/CFS, Carmen Scheibenbogen, MD, professor of clinical immunology and director of the Institute for Medical Immunology, Charité University Medicine, Berlin, said during the annual meeting of the International Association for Chronic Fatigue Syndrome/Myalgic Encephalomyelitis.
Several groups, including Dr. Scheibenbogen’s, have reported finding autoantibodies against neurotransmitter receptor antigens in people with ME/CFS. And, in a paper published in the Journal of Clinical Medicine the day that Dr. Scheibenbogen spoke at the meeting, her team reported significant correlations between autoantibodies to vasoregulative G-protein–coupled receptors and symptom severity, autonomic dysfunction, and disability among 116 patients with infection-triggered ME/CFS who were diagnosed using the symptom-based 2003 Canadian consensus criteria.
People with ME/CFS are also more likely to have genetic risk factors associated with autoimmunity and personal and/or family histories of autoimmune conditions. And, clinical trials have demonstrated early success with various immunomodulatory treatments in subsets of people with ME/CFS, including endoxan, rituximab, and immunoadsorption.
“We have evidence that ME/CFS is an autoantibody-mediated disease, and we have evidence that autoantibody targeting is effective in this disease. So far ... we have few and underfinanced clinical studies, but the good news is we have promising emerging treatment options,” Dr. Scheibenbogen said.
Asked to comment, ME/CFS expert Anthony L. Komaroff, MD, of Brigham and Women’s Hospital and Harvard Medical School, both in Boston, said: “There is already strong evidence that there are autoantibodies in ME/CFS. Dr. Scheibenbogen’s work is the latest and employs the latest technology. ... I would bet that autoantibodies to neural targets are likely to cause some of the symptoms of ME/CFS and some of the symptoms of long COVID.”
However, he cautioned, “that has not been proven, and even if it were proven you would have to demonstrate that treatments based on that theory worked.”
Dr. Komaroff said he views autoimmunity as a likely component of the ME/CFS spectrum, but not the only one. “My current view of this illness is that there’s a final common pathway in the brain that leads to the symptoms of the illness. But that final common pathway can be triggered by a variety of different things, one of which could be autoantibodies while another could be infection or inflammation in the brain.”
Emerging evidence points to autoimmunity
Dr. Scheibenbogen summarized the work published in this area over the past few years by her group and others.
In a comparison of ME/CFS patients with 201 healthy controls, significant associations were seen with two specific autoimmunity-related risk alleles only in the ME/CFS patients who reported acute onset of disease with an infection but not in those with ME/CFS without infection-triggered onset or the controls. Both genes play roles in regulating B- and T-cell activation.
Another recent study found associations with ME/CFS and major histocompatibility complex class II molecules, a typical feature of autoimmune diseases, in a comparison between 426 adult Norwegian ME/CFS patients who were diagnosed with the Canadian consensus criteria and 4,511 healthy, ethnically matched controls.
In a 2020 paper, Dr. Scheibenbogen and pharmacologist Klaus Wirth presented a “unifying hypothesis” of ME/CFS pathophysiology based on the finding of elevations in autoantibodies against beta2-adrenergic receptors and muscarinic acetylcholine receptors in some individuals with the condition. Since both of those receptors are important vasodilators, their functional disturbance would be expected to cause vasoconstriction and hypoxemia, which would explain many of the symptoms of ME/CFS. This mechanism would align with other findings of muscular and cerebral hypoperfusion that correlate with fatigue, particularly post exertion, as well as metabolic changes that are in line with the concepts of hypoxemia and ischemia.
Further evidence for vascular dysfunction in ME/CFS came from her group’s study finding evidence of peripheral endothelial dysfunction that was associated with symptom severity in 35 adult patients. “Vasoconstriction, hypovolemia, and release of vasoactive and algesic mediators is probably a key pathomechanism of the disease,” Dr. Scheibenbogen said.
Treatments: Will targeting autoantibodies work?
In the second part of her talk, Dr. Scheibenbogen summarized clinical trials of the following treatment approaches that involve targeting autoantibodies as a way to alleviate ME/CFS symptoms:
Rituximab: Work on infusions of the B-cell depleting agent has been conducted by Norwegian researchers beginning in 2011 with a small randomized trial and an open-label, phase 2 study in 2015, both showing clinical responses in ME/CFS. However, a subsequent phase 3, randomized clinical trial of 151 patients, again diagnosed using the Canadian criteria, was negative.
There are several possible explanations for this, Dr. Scheibenbogen noted. For one, the maintenance dose had to be reduced because of a lack of financial support. “This was probably critical. The lower dose was insufficient to adequately deplete B cells.” Also, there may have been a strong placebo response in the control group since they were being given better care than they normally would receive during the trial. “I think probably nobody will again do a rituximab trial. This was very disappointing for all of us. But, we still have other opportunities to follow this path,” she said.
Dr. Komaroff agreed. “I don’t think the failure of one drug that hits malignant B cells is proof against the autoimmune hypothesis per se. I think the evidence is that rituximab doesn’t work, but that doesn’t invalidate the autoimmunity hypothesis.”
Cyclophosphamide: The same Norwegian group also showed positive findings in an open-label, phase 2 trial of the immune-modifying drug cyclophosphamide in 22 of 40 patients. Interestingly, HLA risk alleles were much more common in responders than nonresponders, Dr. Scheibenbogen noted.
Immunoadsorption: This technique, similar to dialysis, involves separating out the blood plasma by centrifugation and removing IgG autoantibodies by a binding column, then returning the plasma back to the patient. It is used, primarily in Europe, to treat severe autoimmune diseases including dilative cardiomyopathy and refractory systemic lupus erythematosus (SLE).
Dr. Scheibenbogen’s group has conducted two studies of immunoadsorption in ME/CFS. In one, a 5-day procedure led to rapid symptom improvement in 7 of 10 patients, with sustained improvement in 3 patients after 2 years. Autoantibodies decreased rapidly in 9 of the 10 patients. In a follow-up study of five of the responders 2 years later, retreatment with a modified immunoadsorption protocol led to rapid and sustained improvement in four. Further study has been on hold because of the pandemic.
Next-gen IgG-targeting therapies: Another approach that could offer promise for ME/CFS involves therapies that block the Fc receptors of IgG. Several are in phase 1-3 trials for autoimmune conditions. One candidate drug, the Fc fragment efgartigimod, is currently in phase 3 trials for several conditions, including generalized myasthenia gravis, primary immune thrombocytopenia, and chronic inflammatory demyelinating polyneuropathy. Phase 3 trials are planned for the monoclonal antibody rozanolixizumab in those same conditions.
Newer-generation monoclonal antibodies targeting CD19 or CD20 that show benefit in various autoimmune conditions are another possibility for ME/CFS. These include ocrelizumab (Ocrevus), approved in the United States for treating relapsing and progressive multiple sclerosis and in trials for SLE; obinutuzumab (Gazyva), approved for treating lymphoma and also in development for SLE; and ublituximab, in phase 3 trials for multiple sclerosis.
“Most of them are more effective than rituximab,” Dr. Scheibenbogen noted, adding that “currently the data look quite promising. They are effective in different autoimmune diseases and they are quite well tolerated. There’s great hope now with COVID-19 that we can convince some companies to do such trials in ME/CFS as well.”
Dr. Scheibenbogen’s institution, the Charité Fatigue Center, has a patent for beta2-adrenergic receptor antibodies for diagnosing ME/CFS under her name together with Celltrend. Dr. Komaroff has received personal fees from Serimmune.
FROM IACFS/ME 2021
Neuropsychiatry affects pediatric OCD treatment
Treatment of pediatric obsessive-compulsive disorder (OCD) has evolved in recent years, with more attention given to some of the neuropsychiatric underpinnings of the condition and how they can affect treatment response.
At the Focus on Neuropsychiatry 2021 meeting, Jeffrey Strawn, MD, outlined some of the neuropsychiatry affecting disease and potential mechanisms to help control obsessions and behaviors, and how they may fit with some therapeutic regimens.
Dr. Strawn discussed the psychological construct of cognitive control, which can provide patients an “out” from the cycle of obsession/fear/worry and compulsion/avoidance. In the face of distress, compulsion and avoidance lead to relief, which reinforces the obsession/fear/worry; this in turn leads to more distress.
“We have an escape door for this circuit” in the form of cognitive control, said Dr. Strawn, who is an associate professor of pediatrics at Cincinnati Children’s Hospital Medical Center.
Cognitive control is linked to insight, which can in turn increase adaptive behaviors that help the patient resist the compulsion. Patients won’t eliminate distress, but they can be helped to make it more tolerable. Therapists can then help them move toward goal-directed thoughts and behaviors. Cognitive control is associated with several neural networks, but Dr. Strawn focused on two: the frontoparietal network, associated with top-down regulation; and the cingular-opercular network. Both of these are engaged during cognitive control processes, and play a role inhibitory control and error monitoring.
Dr. Strawn discussed a recent study that explored the neurofunctional basis of treatment. It compared the effects of a stress management therapy and cognitive-behavioral therapy (CBT) in children and adults with OCD at 6 and 12 weeks. The study found similar symptom reductions in both adults and adolescents in both intervention groups.
Before initiating treatment, the researchers conducted functional MRI scans of participants while conducting an incentive flanker task, which reveals brain activity in response to cognitive control and reward processing.
A larger therapeutic response was found in the CBT group among patients who had a larger pretreatment activation within the right temporal lobe and rostral anterior cingulate cortex during cognitive control, as well as those with more activation within the medial prefrontal, orbitofrontal, lateral prefrontal, and amygdala regions during reward processing. On the other hand, within the stress management therapy group, treatment responses were better among those who had lower pretreatment activation among overlapping regions.
“There was a difference in terms of the neurofunctional predictors of treatment response. One of the key regions is the medial prefrontal cortex as well as the rostral anterior cingulate,” said Dr. Strawn, at the meeting presented by MedscapeLive. MedscapeLive and this news organization are owned by the same parent company.
On the neuropharmacology side, numerous medications have been approved for OCD. Dr. Strawn highlighted some studies to illustrate general OCD treatment concepts. That included the 2004 Pediatric OCD Treatment Study, which was one of the only trials to compare placebo with an SSRI, CBT, and the combination of SSRI and CBT. It showed the best results with combination therapy, and the difference appeared early in the treatment course.
That study had aggressive dosing, which led to some issues with sertraline tolerability. Dr. Strawn showed results of a study at his institution which showed that the drug levels of pediatric patients treated with sertraline depended on CYP2C19 metabolism, which affects overall exposure and peak dose concentration. In pediatric populations, some SSRIs clear more slowly and can have high peak concentrations. SSRIs have more side effects than serotonin and norepinephrine reuptake inhibitors in both anxiety disorders and OCD. A key difference between the two is that SSRI treatment is associated with greater frequency of activation, which is difficult to define, but includes restlessness and agitation and insomnia in the beginning stages of treatment.
SSRIs also lead to improvement early in the course of treatment, which was shown in a meta-analysis of nine trials. However, the same study showed that clomipramine is associated with a faster and greater magnitude of improvement, compared with SSRIs, even when the latter are dosed aggressively.
Clomipramine is a potent inhibitor of both serotonin and norepinephrine reuptake. It is recommended to monitor clomipramine levels in pediatric OCD patients, and Dr. Strawn suggested that monitoring should include both the parent drug and its primary metabolite, norclomipramine. At a given dose, there can be a great deal of variation in drug level. The clomipramine/norclomipramine ratio can provide information about the patient’s metabolic state, as well as drug adherence.
Dr. Strawn noted that peak levels occur around 1-3 hours after the dose, “and we really do want at least a 12-hour trough level.” EKGs should be performed at baseline and after any titration of clomipramine dose.
He also discussed pediatric OCD patients with OCD and tics. About one-third of Tourette syndrome patients experience OCD at some point. Tics often improve, whereas OCD more often persists. Tics that co-occur with OCD are associated with a lesser response to SSRI treatment, but not CBT treatment. Similarly, patients with hoarding tendencies are about one-third less likely to respond to SSRIs, CBT, or combination therapy.
Dr. Strawn discussed the concept of accommodation, in which family members cope with a patient’s behavior by altering routines to minimize distress and impairment. This may take the form of facilitating rituals, providing reassurance about a patient’s fears, acquiescing to demands, reducing the child’s day-to-day responsibilities, or helping the child complete tasks. Such actions are well intentioned, but they undermine cognitive control, negatively reinforce symptom engagement, and are associated with functional impairment. Reassurance is the most important behavior, occurring in more than half of patients, and it’s measurable. Parental involvement with rituals is also a concern. “This is associated with higher levels of child OCD severity, as well as parental psychopathology, and lower family cohesion. So
New developments in neurobiology and neuropsychology have changed the view of exposure. The old model emphasized the child’s fear rating as an index of corrective learning. The idea was that habituation would decrease anxiety and distress from future exposures. The new model revolves around inhibitory learning theory, which focuses on the variability of distress and aims to increase tolerance of distress. Another goal is to develop new, non-threat associations.
Finally, Dr. Strawn pointed out predictors of poor outcomes in pediatric OCD, including factors such as compulsion severity, oppositional behavior, frequent handwashing, functional impairment, lack of insight, externalizing symptoms, and possibly hoarding. Problematic family characteristics include higher levels of accommodation, parental anxiety, low family cohesion, and high levels of conflict. “The last three really represent a very concerning triad of family behaviors that may necessitate specific family work in order to facilitate the recovery of the pediatric patient,” Dr. Strawn said.
During the question-and-answer session after the talk, Dr. Strawn was asked whether there might be an inflammatory component to OCD, and whether pediatric autoimmune neuropsychiatric disorders associated with streptococcus (PANDAS) might be a prodromal condition. He noted that some studies have shown a relationship, but results have been mixed, with lots of heterogeneity within the studied populations. To be suspicious that a patient had OCD resulting from PANDAS would require a high threshold, including an acute onset of symptoms. “This is a situation also where I would tend to involve consultation with some other specialties, including neurology. And obviously there would be follow-up in terms of the general workup,” he said.
Dr. Strawn has received research funding from Allergan, Otsuka, and Myriad Genetics. He has consulted for Myriad Genetics, and is a speaker for CMEology and the Neuroscience Education Institute.
Treatment of pediatric obsessive-compulsive disorder (OCD) has evolved in recent years, with more attention given to some of the neuropsychiatric underpinnings of the condition and how they can affect treatment response.
At the Focus on Neuropsychiatry 2021 meeting, Jeffrey Strawn, MD, outlined some of the neuropsychiatry affecting disease and potential mechanisms to help control obsessions and behaviors, and how they may fit with some therapeutic regimens.
Dr. Strawn discussed the psychological construct of cognitive control, which can provide patients an “out” from the cycle of obsession/fear/worry and compulsion/avoidance. In the face of distress, compulsion and avoidance lead to relief, which reinforces the obsession/fear/worry; this in turn leads to more distress.
“We have an escape door for this circuit” in the form of cognitive control, said Dr. Strawn, who is an associate professor of pediatrics at Cincinnati Children’s Hospital Medical Center.
Cognitive control is linked to insight, which can in turn increase adaptive behaviors that help the patient resist the compulsion. Patients won’t eliminate distress, but they can be helped to make it more tolerable. Therapists can then help them move toward goal-directed thoughts and behaviors. Cognitive control is associated with several neural networks, but Dr. Strawn focused on two: the frontoparietal network, associated with top-down regulation; and the cingular-opercular network. Both of these are engaged during cognitive control processes, and play a role inhibitory control and error monitoring.
Dr. Strawn discussed a recent study that explored the neurofunctional basis of treatment. It compared the effects of a stress management therapy and cognitive-behavioral therapy (CBT) in children and adults with OCD at 6 and 12 weeks. The study found similar symptom reductions in both adults and adolescents in both intervention groups.
Before initiating treatment, the researchers conducted functional MRI scans of participants while conducting an incentive flanker task, which reveals brain activity in response to cognitive control and reward processing.
A larger therapeutic response was found in the CBT group among patients who had a larger pretreatment activation within the right temporal lobe and rostral anterior cingulate cortex during cognitive control, as well as those with more activation within the medial prefrontal, orbitofrontal, lateral prefrontal, and amygdala regions during reward processing. On the other hand, within the stress management therapy group, treatment responses were better among those who had lower pretreatment activation among overlapping regions.
“There was a difference in terms of the neurofunctional predictors of treatment response. One of the key regions is the medial prefrontal cortex as well as the rostral anterior cingulate,” said Dr. Strawn, at the meeting presented by MedscapeLive. MedscapeLive and this news organization are owned by the same parent company.
On the neuropharmacology side, numerous medications have been approved for OCD. Dr. Strawn highlighted some studies to illustrate general OCD treatment concepts. That included the 2004 Pediatric OCD Treatment Study, which was one of the only trials to compare placebo with an SSRI, CBT, and the combination of SSRI and CBT. It showed the best results with combination therapy, and the difference appeared early in the treatment course.
That study had aggressive dosing, which led to some issues with sertraline tolerability. Dr. Strawn showed results of a study at his institution which showed that the drug levels of pediatric patients treated with sertraline depended on CYP2C19 metabolism, which affects overall exposure and peak dose concentration. In pediatric populations, some SSRIs clear more slowly and can have high peak concentrations. SSRIs have more side effects than serotonin and norepinephrine reuptake inhibitors in both anxiety disorders and OCD. A key difference between the two is that SSRI treatment is associated with greater frequency of activation, which is difficult to define, but includes restlessness and agitation and insomnia in the beginning stages of treatment.
SSRIs also lead to improvement early in the course of treatment, which was shown in a meta-analysis of nine trials. However, the same study showed that clomipramine is associated with a faster and greater magnitude of improvement, compared with SSRIs, even when the latter are dosed aggressively.
Clomipramine is a potent inhibitor of both serotonin and norepinephrine reuptake. It is recommended to monitor clomipramine levels in pediatric OCD patients, and Dr. Strawn suggested that monitoring should include both the parent drug and its primary metabolite, norclomipramine. At a given dose, there can be a great deal of variation in drug level. The clomipramine/norclomipramine ratio can provide information about the patient’s metabolic state, as well as drug adherence.
Dr. Strawn noted that peak levels occur around 1-3 hours after the dose, “and we really do want at least a 12-hour trough level.” EKGs should be performed at baseline and after any titration of clomipramine dose.
He also discussed pediatric OCD patients with OCD and tics. About one-third of Tourette syndrome patients experience OCD at some point. Tics often improve, whereas OCD more often persists. Tics that co-occur with OCD are associated with a lesser response to SSRI treatment, but not CBT treatment. Similarly, patients with hoarding tendencies are about one-third less likely to respond to SSRIs, CBT, or combination therapy.
Dr. Strawn discussed the concept of accommodation, in which family members cope with a patient’s behavior by altering routines to minimize distress and impairment. This may take the form of facilitating rituals, providing reassurance about a patient’s fears, acquiescing to demands, reducing the child’s day-to-day responsibilities, or helping the child complete tasks. Such actions are well intentioned, but they undermine cognitive control, negatively reinforce symptom engagement, and are associated with functional impairment. Reassurance is the most important behavior, occurring in more than half of patients, and it’s measurable. Parental involvement with rituals is also a concern. “This is associated with higher levels of child OCD severity, as well as parental psychopathology, and lower family cohesion. So
New developments in neurobiology and neuropsychology have changed the view of exposure. The old model emphasized the child’s fear rating as an index of corrective learning. The idea was that habituation would decrease anxiety and distress from future exposures. The new model revolves around inhibitory learning theory, which focuses on the variability of distress and aims to increase tolerance of distress. Another goal is to develop new, non-threat associations.
Finally, Dr. Strawn pointed out predictors of poor outcomes in pediatric OCD, including factors such as compulsion severity, oppositional behavior, frequent handwashing, functional impairment, lack of insight, externalizing symptoms, and possibly hoarding. Problematic family characteristics include higher levels of accommodation, parental anxiety, low family cohesion, and high levels of conflict. “The last three really represent a very concerning triad of family behaviors that may necessitate specific family work in order to facilitate the recovery of the pediatric patient,” Dr. Strawn said.
During the question-and-answer session after the talk, Dr. Strawn was asked whether there might be an inflammatory component to OCD, and whether pediatric autoimmune neuropsychiatric disorders associated with streptococcus (PANDAS) might be a prodromal condition. He noted that some studies have shown a relationship, but results have been mixed, with lots of heterogeneity within the studied populations. To be suspicious that a patient had OCD resulting from PANDAS would require a high threshold, including an acute onset of symptoms. “This is a situation also where I would tend to involve consultation with some other specialties, including neurology. And obviously there would be follow-up in terms of the general workup,” he said.
Dr. Strawn has received research funding from Allergan, Otsuka, and Myriad Genetics. He has consulted for Myriad Genetics, and is a speaker for CMEology and the Neuroscience Education Institute.
Treatment of pediatric obsessive-compulsive disorder (OCD) has evolved in recent years, with more attention given to some of the neuropsychiatric underpinnings of the condition and how they can affect treatment response.
At the Focus on Neuropsychiatry 2021 meeting, Jeffrey Strawn, MD, outlined some of the neuropsychiatry affecting disease and potential mechanisms to help control obsessions and behaviors, and how they may fit with some therapeutic regimens.
Dr. Strawn discussed the psychological construct of cognitive control, which can provide patients an “out” from the cycle of obsession/fear/worry and compulsion/avoidance. In the face of distress, compulsion and avoidance lead to relief, which reinforces the obsession/fear/worry; this in turn leads to more distress.
“We have an escape door for this circuit” in the form of cognitive control, said Dr. Strawn, who is an associate professor of pediatrics at Cincinnati Children’s Hospital Medical Center.
Cognitive control is linked to insight, which can in turn increase adaptive behaviors that help the patient resist the compulsion. Patients won’t eliminate distress, but they can be helped to make it more tolerable. Therapists can then help them move toward goal-directed thoughts and behaviors. Cognitive control is associated with several neural networks, but Dr. Strawn focused on two: the frontoparietal network, associated with top-down regulation; and the cingular-opercular network. Both of these are engaged during cognitive control processes, and play a role inhibitory control and error monitoring.
Dr. Strawn discussed a recent study that explored the neurofunctional basis of treatment. It compared the effects of a stress management therapy and cognitive-behavioral therapy (CBT) in children and adults with OCD at 6 and 12 weeks. The study found similar symptom reductions in both adults and adolescents in both intervention groups.
Before initiating treatment, the researchers conducted functional MRI scans of participants while conducting an incentive flanker task, which reveals brain activity in response to cognitive control and reward processing.
A larger therapeutic response was found in the CBT group among patients who had a larger pretreatment activation within the right temporal lobe and rostral anterior cingulate cortex during cognitive control, as well as those with more activation within the medial prefrontal, orbitofrontal, lateral prefrontal, and amygdala regions during reward processing. On the other hand, within the stress management therapy group, treatment responses were better among those who had lower pretreatment activation among overlapping regions.
“There was a difference in terms of the neurofunctional predictors of treatment response. One of the key regions is the medial prefrontal cortex as well as the rostral anterior cingulate,” said Dr. Strawn, at the meeting presented by MedscapeLive. MedscapeLive and this news organization are owned by the same parent company.
On the neuropharmacology side, numerous medications have been approved for OCD. Dr. Strawn highlighted some studies to illustrate general OCD treatment concepts. That included the 2004 Pediatric OCD Treatment Study, which was one of the only trials to compare placebo with an SSRI, CBT, and the combination of SSRI and CBT. It showed the best results with combination therapy, and the difference appeared early in the treatment course.
That study had aggressive dosing, which led to some issues with sertraline tolerability. Dr. Strawn showed results of a study at his institution which showed that the drug levels of pediatric patients treated with sertraline depended on CYP2C19 metabolism, which affects overall exposure and peak dose concentration. In pediatric populations, some SSRIs clear more slowly and can have high peak concentrations. SSRIs have more side effects than serotonin and norepinephrine reuptake inhibitors in both anxiety disorders and OCD. A key difference between the two is that SSRI treatment is associated with greater frequency of activation, which is difficult to define, but includes restlessness and agitation and insomnia in the beginning stages of treatment.
SSRIs also lead to improvement early in the course of treatment, which was shown in a meta-analysis of nine trials. However, the same study showed that clomipramine is associated with a faster and greater magnitude of improvement, compared with SSRIs, even when the latter are dosed aggressively.
Clomipramine is a potent inhibitor of both serotonin and norepinephrine reuptake. It is recommended to monitor clomipramine levels in pediatric OCD patients, and Dr. Strawn suggested that monitoring should include both the parent drug and its primary metabolite, norclomipramine. At a given dose, there can be a great deal of variation in drug level. The clomipramine/norclomipramine ratio can provide information about the patient’s metabolic state, as well as drug adherence.
Dr. Strawn noted that peak levels occur around 1-3 hours after the dose, “and we really do want at least a 12-hour trough level.” EKGs should be performed at baseline and after any titration of clomipramine dose.
He also discussed pediatric OCD patients with OCD and tics. About one-third of Tourette syndrome patients experience OCD at some point. Tics often improve, whereas OCD more often persists. Tics that co-occur with OCD are associated with a lesser response to SSRI treatment, but not CBT treatment. Similarly, patients with hoarding tendencies are about one-third less likely to respond to SSRIs, CBT, or combination therapy.
Dr. Strawn discussed the concept of accommodation, in which family members cope with a patient’s behavior by altering routines to minimize distress and impairment. This may take the form of facilitating rituals, providing reassurance about a patient’s fears, acquiescing to demands, reducing the child’s day-to-day responsibilities, or helping the child complete tasks. Such actions are well intentioned, but they undermine cognitive control, negatively reinforce symptom engagement, and are associated with functional impairment. Reassurance is the most important behavior, occurring in more than half of patients, and it’s measurable. Parental involvement with rituals is also a concern. “This is associated with higher levels of child OCD severity, as well as parental psychopathology, and lower family cohesion. So
New developments in neurobiology and neuropsychology have changed the view of exposure. The old model emphasized the child’s fear rating as an index of corrective learning. The idea was that habituation would decrease anxiety and distress from future exposures. The new model revolves around inhibitory learning theory, which focuses on the variability of distress and aims to increase tolerance of distress. Another goal is to develop new, non-threat associations.
Finally, Dr. Strawn pointed out predictors of poor outcomes in pediatric OCD, including factors such as compulsion severity, oppositional behavior, frequent handwashing, functional impairment, lack of insight, externalizing symptoms, and possibly hoarding. Problematic family characteristics include higher levels of accommodation, parental anxiety, low family cohesion, and high levels of conflict. “The last three really represent a very concerning triad of family behaviors that may necessitate specific family work in order to facilitate the recovery of the pediatric patient,” Dr. Strawn said.
During the question-and-answer session after the talk, Dr. Strawn was asked whether there might be an inflammatory component to OCD, and whether pediatric autoimmune neuropsychiatric disorders associated with streptococcus (PANDAS) might be a prodromal condition. He noted that some studies have shown a relationship, but results have been mixed, with lots of heterogeneity within the studied populations. To be suspicious that a patient had OCD resulting from PANDAS would require a high threshold, including an acute onset of symptoms. “This is a situation also where I would tend to involve consultation with some other specialties, including neurology. And obviously there would be follow-up in terms of the general workup,” he said.
Dr. Strawn has received research funding from Allergan, Otsuka, and Myriad Genetics. He has consulted for Myriad Genetics, and is a speaker for CMEology and the Neuroscience Education Institute.
FROM FOCUS ON NEUROPSYCHIATRY 2021
EDs saw more benzodiazepine overdoses, but fewer patients overall, in 2020
In a year when emergency department visits dropped by almost 18%, visits for benzodiazepine overdoses did the opposite, according to a report from the Centers for Disease Control and Prevention.
The actual increase in the number of overdose visits for benzodiazepine overdoses was quite small – from 15,547 in 2019 to 15,830 in 2020 (1.8%) – but the 11 million fewer ED visits magnified its effect, Stephen Liu, PhD, and associates said in the Morbidity and Mortality Weekly Report.
The rate of benzodiazepine overdose visits to all visits increased by 23.7% from 2019 (24.22 per 100,000 ED visits) to 2020 (29.97 per 100,000), with the larger share going to those involving opioids, which were up by 34.4%, compared with overdose visits not involving opioids (21.0%), the investigators said, based on data reported by 32 states and the District of Columbia to the CDC’s Drug Overdose Surveillance and Epidemiology system. All of the rate changes are statistically significant.
The number of overdose visits without opioid coinvolvement actually dropped, from 2019 (12,276) to 2020 (12,218), but not by enough to offset the decline in total visits, noted Dr. Liu, of the CDC’s National Center for Injury Prevention and Control and associates.
The number of deaths from benzodiazepine overdose, on the other hand, did not drop in 2020. Those data, coming from 23 states participating in the CDC’s State Unintentional Drug Overdose Reporting System, were available only for the first half of the year.
In those 6 months, The first quarter of 2020 also showed an increase, but exact numbers were not provided in the report. Overdose deaths rose by 22% for prescription forms of benzodiazepine and 520% for illicit forms in Q2 of 2020, compared with 2019, the researchers said.
Almost all of the benzodiazepine deaths (93%) in the first half of 2020 also involved opioids, mostly in the form of illicitly manufactured fentanyls (67% of all deaths). Between Q2 of 2019 and Q2 of 2020, involvement of illicit fentanyls in benzodiazepine overdose deaths increased from almost 57% to 71%, Dr. Liu and associates reported.
“Despite progress in reducing coprescribing [of opioids and benzodiazepines] before 2019, this study suggests a reversal in the decline in benzodiazepine deaths from 2017 to 2019, driven in part by increasing involvement of [illicitly manufactured fentanyls] in benzodiazepine deaths and influxes of illicit benzodiazepines,” they wrote.
In a year when emergency department visits dropped by almost 18%, visits for benzodiazepine overdoses did the opposite, according to a report from the Centers for Disease Control and Prevention.
The actual increase in the number of overdose visits for benzodiazepine overdoses was quite small – from 15,547 in 2019 to 15,830 in 2020 (1.8%) – but the 11 million fewer ED visits magnified its effect, Stephen Liu, PhD, and associates said in the Morbidity and Mortality Weekly Report.
The rate of benzodiazepine overdose visits to all visits increased by 23.7% from 2019 (24.22 per 100,000 ED visits) to 2020 (29.97 per 100,000), with the larger share going to those involving opioids, which were up by 34.4%, compared with overdose visits not involving opioids (21.0%), the investigators said, based on data reported by 32 states and the District of Columbia to the CDC’s Drug Overdose Surveillance and Epidemiology system. All of the rate changes are statistically significant.
The number of overdose visits without opioid coinvolvement actually dropped, from 2019 (12,276) to 2020 (12,218), but not by enough to offset the decline in total visits, noted Dr. Liu, of the CDC’s National Center for Injury Prevention and Control and associates.
The number of deaths from benzodiazepine overdose, on the other hand, did not drop in 2020. Those data, coming from 23 states participating in the CDC’s State Unintentional Drug Overdose Reporting System, were available only for the first half of the year.
In those 6 months, The first quarter of 2020 also showed an increase, but exact numbers were not provided in the report. Overdose deaths rose by 22% for prescription forms of benzodiazepine and 520% for illicit forms in Q2 of 2020, compared with 2019, the researchers said.
Almost all of the benzodiazepine deaths (93%) in the first half of 2020 also involved opioids, mostly in the form of illicitly manufactured fentanyls (67% of all deaths). Between Q2 of 2019 and Q2 of 2020, involvement of illicit fentanyls in benzodiazepine overdose deaths increased from almost 57% to 71%, Dr. Liu and associates reported.
“Despite progress in reducing coprescribing [of opioids and benzodiazepines] before 2019, this study suggests a reversal in the decline in benzodiazepine deaths from 2017 to 2019, driven in part by increasing involvement of [illicitly manufactured fentanyls] in benzodiazepine deaths and influxes of illicit benzodiazepines,” they wrote.
In a year when emergency department visits dropped by almost 18%, visits for benzodiazepine overdoses did the opposite, according to a report from the Centers for Disease Control and Prevention.
The actual increase in the number of overdose visits for benzodiazepine overdoses was quite small – from 15,547 in 2019 to 15,830 in 2020 (1.8%) – but the 11 million fewer ED visits magnified its effect, Stephen Liu, PhD, and associates said in the Morbidity and Mortality Weekly Report.
The rate of benzodiazepine overdose visits to all visits increased by 23.7% from 2019 (24.22 per 100,000 ED visits) to 2020 (29.97 per 100,000), with the larger share going to those involving opioids, which were up by 34.4%, compared with overdose visits not involving opioids (21.0%), the investigators said, based on data reported by 32 states and the District of Columbia to the CDC’s Drug Overdose Surveillance and Epidemiology system. All of the rate changes are statistically significant.
The number of overdose visits without opioid coinvolvement actually dropped, from 2019 (12,276) to 2020 (12,218), but not by enough to offset the decline in total visits, noted Dr. Liu, of the CDC’s National Center for Injury Prevention and Control and associates.
The number of deaths from benzodiazepine overdose, on the other hand, did not drop in 2020. Those data, coming from 23 states participating in the CDC’s State Unintentional Drug Overdose Reporting System, were available only for the first half of the year.
In those 6 months, The first quarter of 2020 also showed an increase, but exact numbers were not provided in the report. Overdose deaths rose by 22% for prescription forms of benzodiazepine and 520% for illicit forms in Q2 of 2020, compared with 2019, the researchers said.
Almost all of the benzodiazepine deaths (93%) in the first half of 2020 also involved opioids, mostly in the form of illicitly manufactured fentanyls (67% of all deaths). Between Q2 of 2019 and Q2 of 2020, involvement of illicit fentanyls in benzodiazepine overdose deaths increased from almost 57% to 71%, Dr. Liu and associates reported.
“Despite progress in reducing coprescribing [of opioids and benzodiazepines] before 2019, this study suggests a reversal in the decline in benzodiazepine deaths from 2017 to 2019, driven in part by increasing involvement of [illicitly manufactured fentanyls] in benzodiazepine deaths and influxes of illicit benzodiazepines,” they wrote.
FROM MMWR
Long COVID symptoms can persist for more than 1 year, study shows
Nearly half of people who are hospitalized with COVID-19 suffer at least one lingering symptom 1 year after discharge, according to the largest study yet to assess the dynamic recovery of a group of COVID-19 survivors 12 months after the illness.
The most common lingering symptoms are fatigue and muscle weakness. One-third continue to have shortness of breath.
Overall, at 12 months, COVID-19 survivors had more problems with mobility, pain or discomfort, and anxiety or depression, and had lower self-assessment scores of quality of life than matched COVID-free peers, the investigators report.
The study was published online Aug. 28 in The Lancet.
“While most had made a good recovery, health problems persisted in some patients, especially those who had been critically ill during their hospital stay,” Bin Cao, MD, from the National Center for Respiratory Medicine at the China-Japan Friendship Hospital and Capital Medical University, both in Beijing, said in a Lancet news release.
“Our findings suggest that recovery for some patients will take longer than 1 year, and this should be taken into account when planning delivery of health care services post pandemic,” Dr. Cao said.
“As the COVID-19 pandemic continues, the need to understand and respond to long COVID is increasingly pressing,” says a Lancet editorial.
“Symptoms such as persistent fatigue, breathlessness, brain fog, and depression could debilitate many millions of people globally. Long COVID is a modern medical challenge of the first order,” it reads.
Study details
Dr. Cao and colleagues studied 1,276 COVID-19 patients (median age 59; 53% men) discharged from a hospital in Wuhan, China, between Jan. 7 and May 29, 2020. The patients were assessed at 6 and 12 months from the date they first experienced COVID-19 symptoms.
Many symptoms resolved over time, regardless of the severity of illness. Yet 49% of patients still had at least one symptom 12 months after their acute illness, down from 68% at the 6-month mark, the authors report.
Fatigue and muscle weakness were the most commonly reported symptoms seen in 52% of patients at 6 months and 20% at 12 months. Compared with men, women were 1.4 times more likely to report fatigue or muscle weakness.
Patients treated with corticosteroids during the acute phase of COVID-19 were 1.5 times as likely to experience fatigue or muscle weakness after 12 months, compared with those who had not received corticosteroids.
Thirty percent of patients reported dyspnea at 12 months, slightly more than at 6 months (26%). Dyspnea was more common in the most severely ill patients needing a ventilator during their hospital stay (39%), compared with those who did not need oxygen treatment (25%).
At the 6-month check, 349 study participants underwent pulmonary function tests and 244 of those patients completed the same test at 12 months.
Spirometric and lung volume parameters of most of these patients were within normal limits at 12 months. But lung diffusion impairment was observed in about 20%-30% of patients who had been moderately ill with COVID-19 and as high as 54% in critically ill patients.
Compared with men, women were almost three times as likely to have lung diffusion impairment after 12 months.
Of 186 patients with abnormal lung CT scan at 6 months, 118 patients had a repeat CT scan at 12 months. The lung imaging abnormality gradually recovered during follow-up, yet 76% of the most critically ill patients still had ground glass opacity at 12 months.
Mental health hit
Among those patients who had been employed full- or part-time before catching COVID, the majority had returned to their original job (88%) and most had returned to their pre-COVID-19 level of work (76%) within 12 months.
Among those who did not return to their original work, 32% cited decreased physical function, 25% were unwilling to do their previous job, and 18% were unemployed.
As shown in multiple other studies, COVID-19 can take a toll on mental health. In this cohort, slightly more patients reported anxiety or depression at 12 months than at 6 months (23% vs. 26%), and the proportion was much greater than in matched community-dwelling adults without COVID-19 (5%).
Compared with men, women were twice as likely to report anxiety or depression.
“We do not yet fully understand why psychiatric symptoms are slightly more common at 1 year than at 6 months in COVID-19 survivors,” study author Xiaoying Gu, PhD, from the Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, said in the news release.
“These could be caused by a biological process linked to the virus infection itself, or the body’s immune response to it. Or they could be linked to reduced social contact, loneliness, incomplete recovery of physical health, or loss of employment associated with illness. Large, long-term studies of COVID-19 survivors are needed so that we can better understand the long-term physical and mental health consequences of COVID-19,” Dr. Gu said.
The authors caution that the findings represent a group of patients from a single hospital in China and the cohort included only a small number of patients who had been admitted to intensive care (94 of 1,276; 7.4%).
The Lancet editorial urges the scientific and medical community to “collaborate to explore the mechanism and pathogenesis of long COVID, estimate the global and regional disease burdens, better delineate who is most at risk, understand how vaccines might affect the condition, and find effective treatments via randomized controlled trials.”
“At the same time, health care providers must acknowledge and validate the toll of the persistent symptoms of long COVID on patients, and health systems need to be prepared to meet individualized, patient-oriented goals, with an appropriately trained workforce involving physical, cognitive, social, and occupational elements,” the editorial states.
“Answering these research questions while providing compassionate and multidisciplinary care will require the full breadth of scientific and medical ingenuity. It is a challenge to which the whole health community must rise,” the editorialists conclude.
The study was funded by the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences, the National Natural Science Foundation of China, the National Key Research and Development Program of China, Major Projects of National Science and Technology on New Drug Creation and Development of Pulmonary Tuberculosis, the China Evergrande Group, the Jack Ma Foundation, Sino Biopharmaceutical, the Ping An Insurance (Group), and the New Sunshine Charity Foundation. The full list of author disclosures is available with the original article.
A version of this article first appeared on Medscape.com.
Nearly half of people who are hospitalized with COVID-19 suffer at least one lingering symptom 1 year after discharge, according to the largest study yet to assess the dynamic recovery of a group of COVID-19 survivors 12 months after the illness.
The most common lingering symptoms are fatigue and muscle weakness. One-third continue to have shortness of breath.
Overall, at 12 months, COVID-19 survivors had more problems with mobility, pain or discomfort, and anxiety or depression, and had lower self-assessment scores of quality of life than matched COVID-free peers, the investigators report.
The study was published online Aug. 28 in The Lancet.
“While most had made a good recovery, health problems persisted in some patients, especially those who had been critically ill during their hospital stay,” Bin Cao, MD, from the National Center for Respiratory Medicine at the China-Japan Friendship Hospital and Capital Medical University, both in Beijing, said in a Lancet news release.
“Our findings suggest that recovery for some patients will take longer than 1 year, and this should be taken into account when planning delivery of health care services post pandemic,” Dr. Cao said.
“As the COVID-19 pandemic continues, the need to understand and respond to long COVID is increasingly pressing,” says a Lancet editorial.
“Symptoms such as persistent fatigue, breathlessness, brain fog, and depression could debilitate many millions of people globally. Long COVID is a modern medical challenge of the first order,” it reads.
Study details
Dr. Cao and colleagues studied 1,276 COVID-19 patients (median age 59; 53% men) discharged from a hospital in Wuhan, China, between Jan. 7 and May 29, 2020. The patients were assessed at 6 and 12 months from the date they first experienced COVID-19 symptoms.
Many symptoms resolved over time, regardless of the severity of illness. Yet 49% of patients still had at least one symptom 12 months after their acute illness, down from 68% at the 6-month mark, the authors report.
Fatigue and muscle weakness were the most commonly reported symptoms seen in 52% of patients at 6 months and 20% at 12 months. Compared with men, women were 1.4 times more likely to report fatigue or muscle weakness.
Patients treated with corticosteroids during the acute phase of COVID-19 were 1.5 times as likely to experience fatigue or muscle weakness after 12 months, compared with those who had not received corticosteroids.
Thirty percent of patients reported dyspnea at 12 months, slightly more than at 6 months (26%). Dyspnea was more common in the most severely ill patients needing a ventilator during their hospital stay (39%), compared with those who did not need oxygen treatment (25%).
At the 6-month check, 349 study participants underwent pulmonary function tests and 244 of those patients completed the same test at 12 months.
Spirometric and lung volume parameters of most of these patients were within normal limits at 12 months. But lung diffusion impairment was observed in about 20%-30% of patients who had been moderately ill with COVID-19 and as high as 54% in critically ill patients.
Compared with men, women were almost three times as likely to have lung diffusion impairment after 12 months.
Of 186 patients with abnormal lung CT scan at 6 months, 118 patients had a repeat CT scan at 12 months. The lung imaging abnormality gradually recovered during follow-up, yet 76% of the most critically ill patients still had ground glass opacity at 12 months.
Mental health hit
Among those patients who had been employed full- or part-time before catching COVID, the majority had returned to their original job (88%) and most had returned to their pre-COVID-19 level of work (76%) within 12 months.
Among those who did not return to their original work, 32% cited decreased physical function, 25% were unwilling to do their previous job, and 18% were unemployed.
As shown in multiple other studies, COVID-19 can take a toll on mental health. In this cohort, slightly more patients reported anxiety or depression at 12 months than at 6 months (23% vs. 26%), and the proportion was much greater than in matched community-dwelling adults without COVID-19 (5%).
Compared with men, women were twice as likely to report anxiety or depression.
“We do not yet fully understand why psychiatric symptoms are slightly more common at 1 year than at 6 months in COVID-19 survivors,” study author Xiaoying Gu, PhD, from the Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, said in the news release.
“These could be caused by a biological process linked to the virus infection itself, or the body’s immune response to it. Or they could be linked to reduced social contact, loneliness, incomplete recovery of physical health, or loss of employment associated with illness. Large, long-term studies of COVID-19 survivors are needed so that we can better understand the long-term physical and mental health consequences of COVID-19,” Dr. Gu said.
The authors caution that the findings represent a group of patients from a single hospital in China and the cohort included only a small number of patients who had been admitted to intensive care (94 of 1,276; 7.4%).
The Lancet editorial urges the scientific and medical community to “collaborate to explore the mechanism and pathogenesis of long COVID, estimate the global and regional disease burdens, better delineate who is most at risk, understand how vaccines might affect the condition, and find effective treatments via randomized controlled trials.”
“At the same time, health care providers must acknowledge and validate the toll of the persistent symptoms of long COVID on patients, and health systems need to be prepared to meet individualized, patient-oriented goals, with an appropriately trained workforce involving physical, cognitive, social, and occupational elements,” the editorial states.
“Answering these research questions while providing compassionate and multidisciplinary care will require the full breadth of scientific and medical ingenuity. It is a challenge to which the whole health community must rise,” the editorialists conclude.
The study was funded by the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences, the National Natural Science Foundation of China, the National Key Research and Development Program of China, Major Projects of National Science and Technology on New Drug Creation and Development of Pulmonary Tuberculosis, the China Evergrande Group, the Jack Ma Foundation, Sino Biopharmaceutical, the Ping An Insurance (Group), and the New Sunshine Charity Foundation. The full list of author disclosures is available with the original article.
A version of this article first appeared on Medscape.com.
Nearly half of people who are hospitalized with COVID-19 suffer at least one lingering symptom 1 year after discharge, according to the largest study yet to assess the dynamic recovery of a group of COVID-19 survivors 12 months after the illness.
The most common lingering symptoms are fatigue and muscle weakness. One-third continue to have shortness of breath.
Overall, at 12 months, COVID-19 survivors had more problems with mobility, pain or discomfort, and anxiety or depression, and had lower self-assessment scores of quality of life than matched COVID-free peers, the investigators report.
The study was published online Aug. 28 in The Lancet.
“While most had made a good recovery, health problems persisted in some patients, especially those who had been critically ill during their hospital stay,” Bin Cao, MD, from the National Center for Respiratory Medicine at the China-Japan Friendship Hospital and Capital Medical University, both in Beijing, said in a Lancet news release.
“Our findings suggest that recovery for some patients will take longer than 1 year, and this should be taken into account when planning delivery of health care services post pandemic,” Dr. Cao said.
“As the COVID-19 pandemic continues, the need to understand and respond to long COVID is increasingly pressing,” says a Lancet editorial.
“Symptoms such as persistent fatigue, breathlessness, brain fog, and depression could debilitate many millions of people globally. Long COVID is a modern medical challenge of the first order,” it reads.
Study details
Dr. Cao and colleagues studied 1,276 COVID-19 patients (median age 59; 53% men) discharged from a hospital in Wuhan, China, between Jan. 7 and May 29, 2020. The patients were assessed at 6 and 12 months from the date they first experienced COVID-19 symptoms.
Many symptoms resolved over time, regardless of the severity of illness. Yet 49% of patients still had at least one symptom 12 months after their acute illness, down from 68% at the 6-month mark, the authors report.
Fatigue and muscle weakness were the most commonly reported symptoms seen in 52% of patients at 6 months and 20% at 12 months. Compared with men, women were 1.4 times more likely to report fatigue or muscle weakness.
Patients treated with corticosteroids during the acute phase of COVID-19 were 1.5 times as likely to experience fatigue or muscle weakness after 12 months, compared with those who had not received corticosteroids.
Thirty percent of patients reported dyspnea at 12 months, slightly more than at 6 months (26%). Dyspnea was more common in the most severely ill patients needing a ventilator during their hospital stay (39%), compared with those who did not need oxygen treatment (25%).
At the 6-month check, 349 study participants underwent pulmonary function tests and 244 of those patients completed the same test at 12 months.
Spirometric and lung volume parameters of most of these patients were within normal limits at 12 months. But lung diffusion impairment was observed in about 20%-30% of patients who had been moderately ill with COVID-19 and as high as 54% in critically ill patients.
Compared with men, women were almost three times as likely to have lung diffusion impairment after 12 months.
Of 186 patients with abnormal lung CT scan at 6 months, 118 patients had a repeat CT scan at 12 months. The lung imaging abnormality gradually recovered during follow-up, yet 76% of the most critically ill patients still had ground glass opacity at 12 months.
Mental health hit
Among those patients who had been employed full- or part-time before catching COVID, the majority had returned to their original job (88%) and most had returned to their pre-COVID-19 level of work (76%) within 12 months.
Among those who did not return to their original work, 32% cited decreased physical function, 25% were unwilling to do their previous job, and 18% were unemployed.
As shown in multiple other studies, COVID-19 can take a toll on mental health. In this cohort, slightly more patients reported anxiety or depression at 12 months than at 6 months (23% vs. 26%), and the proportion was much greater than in matched community-dwelling adults without COVID-19 (5%).
Compared with men, women were twice as likely to report anxiety or depression.
“We do not yet fully understand why psychiatric symptoms are slightly more common at 1 year than at 6 months in COVID-19 survivors,” study author Xiaoying Gu, PhD, from the Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, said in the news release.
“These could be caused by a biological process linked to the virus infection itself, or the body’s immune response to it. Or they could be linked to reduced social contact, loneliness, incomplete recovery of physical health, or loss of employment associated with illness. Large, long-term studies of COVID-19 survivors are needed so that we can better understand the long-term physical and mental health consequences of COVID-19,” Dr. Gu said.
The authors caution that the findings represent a group of patients from a single hospital in China and the cohort included only a small number of patients who had been admitted to intensive care (94 of 1,276; 7.4%).
The Lancet editorial urges the scientific and medical community to “collaborate to explore the mechanism and pathogenesis of long COVID, estimate the global and regional disease burdens, better delineate who is most at risk, understand how vaccines might affect the condition, and find effective treatments via randomized controlled trials.”
“At the same time, health care providers must acknowledge and validate the toll of the persistent symptoms of long COVID on patients, and health systems need to be prepared to meet individualized, patient-oriented goals, with an appropriately trained workforce involving physical, cognitive, social, and occupational elements,” the editorial states.
“Answering these research questions while providing compassionate and multidisciplinary care will require the full breadth of scientific and medical ingenuity. It is a challenge to which the whole health community must rise,” the editorialists conclude.
The study was funded by the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences, the National Natural Science Foundation of China, the National Key Research and Development Program of China, Major Projects of National Science and Technology on New Drug Creation and Development of Pulmonary Tuberculosis, the China Evergrande Group, the Jack Ma Foundation, Sino Biopharmaceutical, the Ping An Insurance (Group), and the New Sunshine Charity Foundation. The full list of author disclosures is available with the original article.
A version of this article first appeared on Medscape.com.