Mixed Topics

As the number of cases of early-onset colorectal cancer (CRC) diagnosed before age 50 continues to rise, early detection has become increasingly important.

A new study has identified four signs and symptoms that can serve as red flags to facilitate earlier detection of early-onset CRC. The signs and symptoms are abdominal pain, rectal bleeding, diarrhea, and iron-deficiency anemia.

Two symptoms in particular – rectal bleeding and iron-deficiency anemia – point to the need for timely endoscopy and follow-up, the researchers say.

“Colorectal cancer is not simply a disease affecting older people; we want younger adults to be aware of and act on these potentially very telling signs and symptoms – particularly because people under 50 are considered to be at low risk, and they don’t receive routine colorectal cancer screening,” senior investigator Yin Cao, ScD, with Washington University School of Medicine, St. Louis, said in a news release.

“It’s also crucial to spread awareness among primary care doctors, gastroenterologists, and emergency medicine doctors,” Dr. Cao added. “To date, many early-onset colorectal cancers are detected in emergency rooms, and there often are significant diagnostic delays with this cancer.”

The study was published online  in the Journal of the National Cancer Institute.

Although previous research has identified rectal bleeding, iron-deficiency anemia, and rectal/abdominal pain as symptoms of early-onset CRC, most studies “have aggregated symptoms till the time of diagnosis,” which limits their use for early detection, the authors explain.

In the current study, the researchers analyzed data from more than 5,000 cases of early-onset CRC and from more than 22,000 control patients using the IBM MarketScan commercial database.

Dr. Cao and colleagues found that between 3 months and 2 years before diagnosis, abdominal pain, rectal bleeding, diarrhea, and iron-deficiency anemia each indicated an increased risk for early-onset CRC.

Among patients with early-onset CRC, 19.3% presented with one or more of the four red flags between 3 months and 2 years prior to the index date; 15.6% had one symptom, and 3.7% had two or more.

After multivariable adjustment, having one symptom almost doubled the risk for early-onset CRC (odds ratio, 1.94); having two symptoms increased risk by more than threefold (OR, 3.59); and having three or more boosted the risk by more than 6.5-fold (OR, 6.52).

Abdominal pain was associated with a 34% higher risk of early-onset CRC (11.6% among case patients vs. 7.7% among controls; OR, 1.34).

Although not as common, rectal bleeding was associated with the highest odds for early-onset CRC (7.2% case patients vs. 1.3% controls; OR, 5.13).

The other predictive signs and symptoms included diarrhea (2.8% case patients vs. 1.4% controls; OR, 1.43) and iron-deficiency anemia (2.3% case patients vs. 0.9% controls; OR, 2.07).

No differences were observed by gender for each sign or symptom.

Among patients with a red-flag symptom who presented between 3 months and 2 years before diagnosis, for those with early-onset CRC, the median diagnostic interval was 8.7 months.

The researchers suggest that clinicians prioritize prompt diagnostic workups for patients younger than 50 who present with rectal bleeding and/or iron-deficiency anemia and that they also keep abdominal pain and diarrhea in mind as early symptoms.

Dr. Cao noted that since most early-onset CRC cases “have been and will continue to be diagnosed after symptom presentation, it is crucial to recognize these red-flag signs and symptoms promptly and conduct a diagnostic workup as soon as possible.

“By doing so, we can diagnose the disease earlier, which in turn can reduce the need for more aggressive treatment and improve patients’ quality of life and survival rates,” said Dr. Cao.

The study was supported by grants from the National Institutes of Health. The authors declared no conflicts of interest.

A version of this article originally appeared on Medscape.com.

As the number of cases of early-onset colorectal cancer (CRC) diagnosed before age 50 continues to rise, early detection has become increasingly important.

A new study has identified four signs and symptoms that can serve as red flags to facilitate earlier detection of early-onset CRC. The signs and symptoms are abdominal pain, rectal bleeding, diarrhea, and iron-deficiency anemia.

Two symptoms in particular – rectal bleeding and iron-deficiency anemia – point to the need for timely endoscopy and follow-up, the researchers say.

“Colorectal cancer is not simply a disease affecting older people; we want younger adults to be aware of and act on these potentially very telling signs and symptoms – particularly because people under 50 are considered to be at low risk, and they don’t receive routine colorectal cancer screening,” senior investigator Yin Cao, ScD, with Washington University School of Medicine, St. Louis, said in a news release.

“It’s also crucial to spread awareness among primary care doctors, gastroenterologists, and emergency medicine doctors,” Dr. Cao added. “To date, many early-onset colorectal cancers are detected in emergency rooms, and there often are significant diagnostic delays with this cancer.”

The study was published online  in the Journal of the National Cancer Institute.

Although previous research has identified rectal bleeding, iron-deficiency anemia, and rectal/abdominal pain as symptoms of early-onset CRC, most studies “have aggregated symptoms till the time of diagnosis,” which limits their use for early detection, the authors explain.

In the current study, the researchers analyzed data from more than 5,000 cases of early-onset CRC and from more than 22,000 control patients using the IBM MarketScan commercial database.

Dr. Cao and colleagues found that between 3 months and 2 years before diagnosis, abdominal pain, rectal bleeding, diarrhea, and iron-deficiency anemia each indicated an increased risk for early-onset CRC.

Among patients with early-onset CRC, 19.3% presented with one or more of the four red flags between 3 months and 2 years prior to the index date; 15.6% had one symptom, and 3.7% had two or more.

After multivariable adjustment, having one symptom almost doubled the risk for early-onset CRC (odds ratio, 1.94); having two symptoms increased risk by more than threefold (OR, 3.59); and having three or more boosted the risk by more than 6.5-fold (OR, 6.52).

Abdominal pain was associated with a 34% higher risk of early-onset CRC (11.6% among case patients vs. 7.7% among controls; OR, 1.34).

Although not as common, rectal bleeding was associated with the highest odds for early-onset CRC (7.2% case patients vs. 1.3% controls; OR, 5.13).

The other predictive signs and symptoms included diarrhea (2.8% case patients vs. 1.4% controls; OR, 1.43) and iron-deficiency anemia (2.3% case patients vs. 0.9% controls; OR, 2.07).

No differences were observed by gender for each sign or symptom.

Among patients with a red-flag symptom who presented between 3 months and 2 years before diagnosis, for those with early-onset CRC, the median diagnostic interval was 8.7 months.

The researchers suggest that clinicians prioritize prompt diagnostic workups for patients younger than 50 who present with rectal bleeding and/or iron-deficiency anemia and that they also keep abdominal pain and diarrhea in mind as early symptoms.

Dr. Cao noted that since most early-onset CRC cases “have been and will continue to be diagnosed after symptom presentation, it is crucial to recognize these red-flag signs and symptoms promptly and conduct a diagnostic workup as soon as possible.

“By doing so, we can diagnose the disease earlier, which in turn can reduce the need for more aggressive treatment and improve patients’ quality of life and survival rates,” said Dr. Cao.

The study was supported by grants from the National Institutes of Health. The authors declared no conflicts of interest.

A version of this article originally appeared on Medscape.com.

As the number of cases of early-onset colorectal cancer (CRC) diagnosed before age 50 continues to rise, early detection has become increasingly important.

A new study has identified four signs and symptoms that can serve as red flags to facilitate earlier detection of early-onset CRC. The signs and symptoms are abdominal pain, rectal bleeding, diarrhea, and iron-deficiency anemia.

Two symptoms in particular – rectal bleeding and iron-deficiency anemia – point to the need for timely endoscopy and follow-up, the researchers say.

“Colorectal cancer is not simply a disease affecting older people; we want younger adults to be aware of and act on these potentially very telling signs and symptoms – particularly because people under 50 are considered to be at low risk, and they don’t receive routine colorectal cancer screening,” senior investigator Yin Cao, ScD, with Washington University School of Medicine, St. Louis, said in a news release.

“It’s also crucial to spread awareness among primary care doctors, gastroenterologists, and emergency medicine doctors,” Dr. Cao added. “To date, many early-onset colorectal cancers are detected in emergency rooms, and there often are significant diagnostic delays with this cancer.”

The study was published online  in the Journal of the National Cancer Institute.

Although previous research has identified rectal bleeding, iron-deficiency anemia, and rectal/abdominal pain as symptoms of early-onset CRC, most studies “have aggregated symptoms till the time of diagnosis,” which limits their use for early detection, the authors explain.

In the current study, the researchers analyzed data from more than 5,000 cases of early-onset CRC and from more than 22,000 control patients using the IBM MarketScan commercial database.

Dr. Cao and colleagues found that between 3 months and 2 years before diagnosis, abdominal pain, rectal bleeding, diarrhea, and iron-deficiency anemia each indicated an increased risk for early-onset CRC.

Among patients with early-onset CRC, 19.3% presented with one or more of the four red flags between 3 months and 2 years prior to the index date; 15.6% had one symptom, and 3.7% had two or more.

After multivariable adjustment, having one symptom almost doubled the risk for early-onset CRC (odds ratio, 1.94); having two symptoms increased risk by more than threefold (OR, 3.59); and having three or more boosted the risk by more than 6.5-fold (OR, 6.52).

Abdominal pain was associated with a 34% higher risk of early-onset CRC (11.6% among case patients vs. 7.7% among controls; OR, 1.34).

Although not as common, rectal bleeding was associated with the highest odds for early-onset CRC (7.2% case patients vs. 1.3% controls; OR, 5.13).

The other predictive signs and symptoms included diarrhea (2.8% case patients vs. 1.4% controls; OR, 1.43) and iron-deficiency anemia (2.3% case patients vs. 0.9% controls; OR, 2.07).

No differences were observed by gender for each sign or symptom.

Among patients with a red-flag symptom who presented between 3 months and 2 years before diagnosis, for those with early-onset CRC, the median diagnostic interval was 8.7 months.

The researchers suggest that clinicians prioritize prompt diagnostic workups for patients younger than 50 who present with rectal bleeding and/or iron-deficiency anemia and that they also keep abdominal pain and diarrhea in mind as early symptoms.

Dr. Cao noted that since most early-onset CRC cases “have been and will continue to be diagnosed after symptom presentation, it is crucial to recognize these red-flag signs and symptoms promptly and conduct a diagnostic workup as soon as possible.

“By doing so, we can diagnose the disease earlier, which in turn can reduce the need for more aggressive treatment and improve patients’ quality of life and survival rates,” said Dr. Cao.

The study was supported by grants from the National Institutes of Health. The authors declared no conflicts of interest.

A version of this article originally appeared on Medscape.com.

A 41-year-old man presented for evaluation of an extensive skin rash that had erupted more than a month earlier. The patient had received 2 doses of the Pfizer COVID-19 vaccine 3 weeks apart. Ten days after his second dose, the patient developed a rash all over his body. He described the rash as burning, itchy, and uncomfortable. The patient denied any triggers such as recent or previous infections, stressors, or drugs. The patient had no personal or family history of dermatologic disorders; his general medical history was unremarkable. The patient smoked and drank alcohol occasionally.

On physical exam, the patient had a diffuse rash, which initially had manifested on both of his hands, including the palms, and then spread to 60% to 70% of his total body surface area, including his face, ears, anterior and posterior chest, upper and lower extremities, and buttocks. The rash consisted of 10- to 15-mm white scaly plaques that did not bleed.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

 

 

Diagnosis: Guttate psoriasis

Punch biopsies were obtained, and histopathology revealed diffuse compact hyperkeratosis with broad zones of parakeratosis. There was attenuation of the granular layer and regular elongation of the rete ridges associated with thinning of the suprapapillary epidermis and mild spongiosis. These pathologic findings were consistent with a diagnosis of psoriasis. There were no drug-related skin eruption features, such as apoptotic keratinocytes, eosinophils, or interface dermatitis. Periodic acid-Schiff stains for fungal organisms were negative. The combined clinical presentation (itchy, teardrop-shaped, scaly lesions) and histologic impression were consistent with guttate psoriasis.

Psoriasis can be seen in various forms. Subtypes of psoriasis include guttate psoriasis, inverse psoriasis, erythrodermic psoriasis, nail psoriasis, and pustular psoriasis.¹ Guttate psoriasis accounts for about 2% of psoriasis cases and usually is seen in patients younger than 30 years.² Guttate psoriasis is characterized by 1- to 10-mm teardrop-shaped pink papules with fine scaling.³

One study found that the average time of new onset of psoriasis or flare-up can be between 5 to 14 days after the COVID-19 vaccination.

Triggers for psoriasis. Vaccinations, medications, and infections (eg, group A beta-hemolytic streptococcal upper respiratory infections) can trigger guttate psoriasis.³ MRNA vaccines (eg, Moderna and Pfizer/BioNTech COVID-19 vaccines) have been associated with psoriasis episodes.¹ Other vaccines such as influenza, rubella, bacillus Calmette-Guerin, tetanus-diphtheria, and pneumococcal polysaccharide also have been known to trigger psoriasis.⁴ Medications that can trigger psoriasis include beta-blockers, lithium, antimalarial drugs, and (in some cases)­ nonsteroidal anti-inflammatory drugs.⁵

The impact of COVID-19 vaccine. We are still learning about the incidence and prevalence of adverse effects (such as psoriasis) that can follow COVID-19 vaccination. One study found that the average time of new onset­ of psoriasis or flare-up can be between 5 to 14 days after COVID-19 vaccination.⁶

Psoriasis following vaccination. The pathologic mechanism for the new onset or flare of psoriasis after COVID-19 vaccination is unknown. What is known is that the dysregulation of Th-1 and Th-17 plays an important role in the pathogenesis of psoriasis.⁷ Previously, it was found that psoriasis can manifest after tetanus-diphtheria vaccines due to an increase in the production of Th-17 cells.⁷ Th-1 and Th-17 production also increases after influenza vaccine and can cause an onset or flare-up of psoriasis.⁸

Continue to: The differential includes syphilis and exfoliative dermatitis

The differential includes syphilis and exfoliative dermatitis

The differential diagnosis includes various forms of psoriasiform dermatitis, such as secondary syphilis, chronic spongiotic dermatitis, psoriasiform drug eruption, exfoliative dermatitis, and pityriasis rubra pilaris. A combination of clinical and histopathologic findings is used to zero in on the diagnosis. The summary below highlights the clinical findings.

Secondary syphilis manifests with symmetric papular eruptions primarily on the trunk and extremities with involvement on the palms and soles. Lesions are red or reddish brown, can be smooth, and are rarely pustular.

Chronic spongiotic dermatitis manifests with a shiny, glazed, cracked appearance and itchy reddish lesions on the soles.

Psoriasiform drug eruption manifests after drug administration with a psoriasis-like rash with erythematous, squamous, thick, dry, and plaque-type lesions.

Exfoliative dermatitis manifests with erythematous single or multiple pruritic patches on the trunk, head, and genitals.

Continue to: Pityriasis rubra pilaris

Pityriasis rubra pilaris manifests in various ways. Patients may have plaques that are erythematous, scaly, or follicular. Sometimes, it may manifest as erythroderma with an “island of sparing,” which is normal-looking skin in the affected areas.

How to make the diagnosis

Psoriasis can be diagnosed by physical examination. A skin biopsy is not usually necessary but can be helpful for complex cases.

There are no laboratory or genetic tests to confirm the diagnosis of psoriasis. Depending on the case, routine bloodwork (eg, complete blood count and metabolic panel) and infectious disease tests (eg, HIV, hepatitis panel, and rapid plasma reagin for syphilis) can be helpful to rule out other etiologies of skin rash.

Treatment is based on patient factors and disease severity

Starting with a low- to medium-potency steroid, such as betamethasone valerate 0.1% cream twice per day or triamcinolone acetonide 0.1% cream twice per day for 2 weeks, provides high safety and efficacy for localized disease.⁹ An appropriate-potency steroid should be chosen based on the disease severity, location, and patient’s preference and age. Topical vitamin D analogues often are used in conjunction with topical steroids to treat psoriasis.⁹

Depending on the severity, patient age, comorbidities, and availability of treatment, other treatment options for psoriasis include oral methotrexate (2.5 mg to 25 mg weekly, starting with a low dose), acitretin (10 mg to 50 mg daily), apremilast (10 mg daily, gradually increasing to 30 mg twice per day in a divided dose), biologics, and narrowband ultraviolet light.

In this case, betamethasone dipropionate 0.05% cream twice daily for 2 weeks was not sufficiently effective due to the extent of the psoriasis. Following consultation with a dermatologist, clobetasol propionate 0.05% cream twice per day and oral apremilast (10 mg once per day on the first day and 10 mg twice per day afterward) were prescribed for 2 weeks. The patient’s psoriasis improved somewhat after 2 weeks of the treatment, but many plaques remained. Therefore, apremilast was stopped and subcutaneous adalimumab was started (initial loading dose, 80 mg, then 40 mg every other week). The psoriasis lesions cleared over the next 2 to 3 months. The patient was maintained on the adalimumab to avoid a recurrence of lesions.

A 41-year-old man presented for evaluation of an extensive skin rash that had erupted more than a month earlier. The patient had received 2 doses of the Pfizer COVID-19 vaccine 3 weeks apart. Ten days after his second dose, the patient developed a rash all over his body. He described the rash as burning, itchy, and uncomfortable. The patient denied any triggers such as recent or previous infections, stressors, or drugs. The patient had no personal or family history of dermatologic disorders; his general medical history was unremarkable. The patient smoked and drank alcohol occasionally.

On physical exam, the patient had a diffuse rash, which initially had manifested on both of his hands, including the palms, and then spread to 60% to 70% of his total body surface area, including his face, ears, anterior and posterior chest, upper and lower extremities, and buttocks. The rash consisted of 10- to 15-mm white scaly plaques that did not bleed.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

 

 

Diagnosis: Guttate psoriasis

Punch biopsies were obtained, and histopathology revealed diffuse compact hyperkeratosis with broad zones of parakeratosis. There was attenuation of the granular layer and regular elongation of the rete ridges associated with thinning of the suprapapillary epidermis and mild spongiosis. These pathologic findings were consistent with a diagnosis of psoriasis. There were no drug-related skin eruption features, such as apoptotic keratinocytes, eosinophils, or interface dermatitis. Periodic acid-Schiff stains for fungal organisms were negative. The combined clinical presentation (itchy, teardrop-shaped, scaly lesions) and histologic impression were consistent with guttate psoriasis.

Psoriasis can be seen in various forms. Subtypes of psoriasis include guttate psoriasis, inverse psoriasis, erythrodermic psoriasis, nail psoriasis, and pustular psoriasis.¹ Guttate psoriasis accounts for about 2% of psoriasis cases and usually is seen in patients younger than 30 years.² Guttate psoriasis is characterized by 1- to 10-mm teardrop-shaped pink papules with fine scaling.³

One study found that the average time of new onset of psoriasis or flare-up can be between 5 to 14 days after the COVID-19 vaccination.

Triggers for psoriasis. Vaccinations, medications, and infections (eg, group A beta-hemolytic streptococcal upper respiratory infections) can trigger guttate psoriasis.³ MRNA vaccines (eg, Moderna and Pfizer/BioNTech COVID-19 vaccines) have been associated with psoriasis episodes.¹ Other vaccines such as influenza, rubella, bacillus Calmette-Guerin, tetanus-diphtheria, and pneumococcal polysaccharide also have been known to trigger psoriasis.⁴ Medications that can trigger psoriasis include beta-blockers, lithium, antimalarial drugs, and (in some cases)­ nonsteroidal anti-inflammatory drugs.⁵

The impact of COVID-19 vaccine. We are still learning about the incidence and prevalence of adverse effects (such as psoriasis) that can follow COVID-19 vaccination. One study found that the average time of new onset­ of psoriasis or flare-up can be between 5 to 14 days after COVID-19 vaccination.⁶

Psoriasis following vaccination. The pathologic mechanism for the new onset or flare of psoriasis after COVID-19 vaccination is unknown. What is known is that the dysregulation of Th-1 and Th-17 plays an important role in the pathogenesis of psoriasis.⁷ Previously, it was found that psoriasis can manifest after tetanus-diphtheria vaccines due to an increase in the production of Th-17 cells.⁷ Th-1 and Th-17 production also increases after influenza vaccine and can cause an onset or flare-up of psoriasis.⁸

Continue to: The differential includes syphilis and exfoliative dermatitis

The differential includes syphilis and exfoliative dermatitis

The differential diagnosis includes various forms of psoriasiform dermatitis, such as secondary syphilis, chronic spongiotic dermatitis, psoriasiform drug eruption, exfoliative dermatitis, and pityriasis rubra pilaris. A combination of clinical and histopathologic findings is used to zero in on the diagnosis. The summary below highlights the clinical findings.

Secondary syphilis manifests with symmetric papular eruptions primarily on the trunk and extremities with involvement on the palms and soles. Lesions are red or reddish brown, can be smooth, and are rarely pustular.

Chronic spongiotic dermatitis manifests with a shiny, glazed, cracked appearance and itchy reddish lesions on the soles.

Psoriasiform drug eruption manifests after drug administration with a psoriasis-like rash with erythematous, squamous, thick, dry, and plaque-type lesions.

Exfoliative dermatitis manifests with erythematous single or multiple pruritic patches on the trunk, head, and genitals.

Continue to: Pityriasis rubra pilaris

Pityriasis rubra pilaris manifests in various ways. Patients may have plaques that are erythematous, scaly, or follicular. Sometimes, it may manifest as erythroderma with an “island of sparing,” which is normal-looking skin in the affected areas.

How to make the diagnosis

Psoriasis can be diagnosed by physical examination. A skin biopsy is not usually necessary but can be helpful for complex cases.

There are no laboratory or genetic tests to confirm the diagnosis of psoriasis. Depending on the case, routine bloodwork (eg, complete blood count and metabolic panel) and infectious disease tests (eg, HIV, hepatitis panel, and rapid plasma reagin for syphilis) can be helpful to rule out other etiologies of skin rash.

Treatment is based on patient factors and disease severity

Starting with a low- to medium-potency steroid, such as betamethasone valerate 0.1% cream twice per day or triamcinolone acetonide 0.1% cream twice per day for 2 weeks, provides high safety and efficacy for localized disease.⁹ An appropriate-potency steroid should be chosen based on the disease severity, location, and patient’s preference and age. Topical vitamin D analogues often are used in conjunction with topical steroids to treat psoriasis.⁹

Depending on the severity, patient age, comorbidities, and availability of treatment, other treatment options for psoriasis include oral methotrexate (2.5 mg to 25 mg weekly, starting with a low dose), acitretin (10 mg to 50 mg daily), apremilast (10 mg daily, gradually increasing to 30 mg twice per day in a divided dose), biologics, and narrowband ultraviolet light.

In this case, betamethasone dipropionate 0.05% cream twice daily for 2 weeks was not sufficiently effective due to the extent of the psoriasis. Following consultation with a dermatologist, clobetasol propionate 0.05% cream twice per day and oral apremilast (10 mg once per day on the first day and 10 mg twice per day afterward) were prescribed for 2 weeks. The patient’s psoriasis improved somewhat after 2 weeks of the treatment, but many plaques remained. Therefore, apremilast was stopped and subcutaneous adalimumab was started (initial loading dose, 80 mg, then 40 mg every other week). The psoriasis lesions cleared over the next 2 to 3 months. The patient was maintained on the adalimumab to avoid a recurrence of lesions.

A 41-year-old man presented for evaluation of an extensive skin rash that had erupted more than a month earlier. The patient had received 2 doses of the Pfizer COVID-19 vaccine 3 weeks apart. Ten days after his second dose, the patient developed a rash all over his body. He described the rash as burning, itchy, and uncomfortable. The patient denied any triggers such as recent or previous infections, stressors, or drugs. The patient had no personal or family history of dermatologic disorders; his general medical history was unremarkable. The patient smoked and drank alcohol occasionally.

On physical exam, the patient had a diffuse rash, which initially had manifested on both of his hands, including the palms, and then spread to 60% to 70% of his total body surface area, including his face, ears, anterior and posterior chest, upper and lower extremities, and buttocks. The rash consisted of 10- to 15-mm white scaly plaques that did not bleed.

WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?

 

 

Diagnosis: Guttate psoriasis

Punch biopsies were obtained, and histopathology revealed diffuse compact hyperkeratosis with broad zones of parakeratosis. There was attenuation of the granular layer and regular elongation of the rete ridges associated with thinning of the suprapapillary epidermis and mild spongiosis. These pathologic findings were consistent with a diagnosis of psoriasis. There were no drug-related skin eruption features, such as apoptotic keratinocytes, eosinophils, or interface dermatitis. Periodic acid-Schiff stains for fungal organisms were negative. The combined clinical presentation (itchy, teardrop-shaped, scaly lesions) and histologic impression were consistent with guttate psoriasis.

Psoriasis can be seen in various forms. Subtypes of psoriasis include guttate psoriasis, inverse psoriasis, erythrodermic psoriasis, nail psoriasis, and pustular psoriasis.¹ Guttate psoriasis accounts for about 2% of psoriasis cases and usually is seen in patients younger than 30 years.² Guttate psoriasis is characterized by 1- to 10-mm teardrop-shaped pink papules with fine scaling.³

One study found that the average time of new onset of psoriasis or flare-up can be between 5 to 14 days after the COVID-19 vaccination.

Triggers for psoriasis. Vaccinations, medications, and infections (eg, group A beta-hemolytic streptococcal upper respiratory infections) can trigger guttate psoriasis.³ MRNA vaccines (eg, Moderna and Pfizer/BioNTech COVID-19 vaccines) have been associated with psoriasis episodes.¹ Other vaccines such as influenza, rubella, bacillus Calmette-Guerin, tetanus-diphtheria, and pneumococcal polysaccharide also have been known to trigger psoriasis.⁴ Medications that can trigger psoriasis include beta-blockers, lithium, antimalarial drugs, and (in some cases)­ nonsteroidal anti-inflammatory drugs.⁵

The impact of COVID-19 vaccine. We are still learning about the incidence and prevalence of adverse effects (such as psoriasis) that can follow COVID-19 vaccination. One study found that the average time of new onset­ of psoriasis or flare-up can be between 5 to 14 days after COVID-19 vaccination.⁶

Psoriasis following vaccination. The pathologic mechanism for the new onset or flare of psoriasis after COVID-19 vaccination is unknown. What is known is that the dysregulation of Th-1 and Th-17 plays an important role in the pathogenesis of psoriasis.⁷ Previously, it was found that psoriasis can manifest after tetanus-diphtheria vaccines due to an increase in the production of Th-17 cells.⁷ Th-1 and Th-17 production also increases after influenza vaccine and can cause an onset or flare-up of psoriasis.⁸

Continue to: The differential includes syphilis and exfoliative dermatitis

The differential includes syphilis and exfoliative dermatitis

The differential diagnosis includes various forms of psoriasiform dermatitis, such as secondary syphilis, chronic spongiotic dermatitis, psoriasiform drug eruption, exfoliative dermatitis, and pityriasis rubra pilaris. A combination of clinical and histopathologic findings is used to zero in on the diagnosis. The summary below highlights the clinical findings.

Secondary syphilis manifests with symmetric papular eruptions primarily on the trunk and extremities with involvement on the palms and soles. Lesions are red or reddish brown, can be smooth, and are rarely pustular.

Chronic spongiotic dermatitis manifests with a shiny, glazed, cracked appearance and itchy reddish lesions on the soles.

Psoriasiform drug eruption manifests after drug administration with a psoriasis-like rash with erythematous, squamous, thick, dry, and plaque-type lesions.

Exfoliative dermatitis manifests with erythematous single or multiple pruritic patches on the trunk, head, and genitals.

Continue to: Pityriasis rubra pilaris

Pityriasis rubra pilaris manifests in various ways. Patients may have plaques that are erythematous, scaly, or follicular. Sometimes, it may manifest as erythroderma with an “island of sparing,” which is normal-looking skin in the affected areas.

How to make the diagnosis

Psoriasis can be diagnosed by physical examination. A skin biopsy is not usually necessary but can be helpful for complex cases.

There are no laboratory or genetic tests to confirm the diagnosis of psoriasis. Depending on the case, routine bloodwork (eg, complete blood count and metabolic panel) and infectious disease tests (eg, HIV, hepatitis panel, and rapid plasma reagin for syphilis) can be helpful to rule out other etiologies of skin rash.

Treatment is based on patient factors and disease severity

Starting with a low- to medium-potency steroid, such as betamethasone valerate 0.1% cream twice per day or triamcinolone acetonide 0.1% cream twice per day for 2 weeks, provides high safety and efficacy for localized disease.⁹ An appropriate-potency steroid should be chosen based on the disease severity, location, and patient’s preference and age. Topical vitamin D analogues often are used in conjunction with topical steroids to treat psoriasis.⁹

Depending on the severity, patient age, comorbidities, and availability of treatment, other treatment options for psoriasis include oral methotrexate (2.5 mg to 25 mg weekly, starting with a low dose), acitretin (10 mg to 50 mg daily), apremilast (10 mg daily, gradually increasing to 30 mg twice per day in a divided dose), biologics, and narrowband ultraviolet light.

In this case, betamethasone dipropionate 0.05% cream twice daily for 2 weeks was not sufficiently effective due to the extent of the psoriasis. Following consultation with a dermatologist, clobetasol propionate 0.05% cream twice per day and oral apremilast (10 mg once per day on the first day and 10 mg twice per day afterward) were prescribed for 2 weeks. The patient’s psoriasis improved somewhat after 2 weeks of the treatment, but many plaques remained. Therefore, apremilast was stopped and subcutaneous adalimumab was started (initial loading dose, 80 mg, then 40 mg every other week). The psoriasis lesions cleared over the next 2 to 3 months. The patient was maintained on the adalimumab to avoid a recurrence of lesions.

The US Preventive Services Task Force (USPSTF) had a productive year in 2022. In total, the USPSTF

• reviewed and made recommendations on 4 new topics
• re-assessed 19 previous recommendations on 11 topics
• made 24 separate recommendations, including 1 “A,” 3 “B,” 3 “C,” and 5 “D” recommendations and 12 “I” statements (see TABLE 1¹).

A note about grading. TABLE 2² outlines the USPSTF’s grade definitions and suggestions for practice. The importance of an “A” or “B” recommendation rests historically with the requirement in the Affordable Care Act (ACA) that all USPSTF-recommended services with either of these grades have to be provided by commercial health insurance plans with no co-pay or deductible applied. (The legal challenge in Texas to the ACA’s preventive care provision may change that.)

What’s new?

The USPSTF’s review of 4 new topics exceeds the entity’s output in each of the prior 4 years, when the Task Force was able to add only 1 or 2 topics annually. However, 3 of the 4 new topics in 2022 resulted in an insufficient evidence or “I” statement, which means there was not enough evidence to judge the relative benefits and harms of the intervention.

These 3 included screening for type 2 diabetes in children and adolescents younger than 18 years; screening for obstructive sleep apnea in the general adult population (ages ≥ 18 years); and screening for eating disorders in adolescents and adults. The fourth new topic, screening for anxiety in children and adolescents, resulted in a “B” recommendation and was described in a recent Practice Alert.³

Major revision to 1 prior recommendation

Only 1 of the 19 revisited recommendations resulted in a major revision: the use of daily aspirin for primary prevention of cardiovascular disease (CVD). Note that it does not apply to those who have established CVD, in whom the use of aspirin would be considered tertiary prevention or harm reduction.

In 2016, the USPSTF recommended (with a “B” grade) the use of daily low-dose aspirin for those ages 50 to 59 years who had a 10-year risk for a CVD event > 10%; no increased risk for bleeding; at least a 10-year life expectancy; and a willingness to take aspirin for 10 years. For those ages 60 to 69 years with a 10-year risk for a CVD event > 10%, the recommendation was a “C.” For those younger than 50 and older than 70, an “I” statement was issued.

In 2022, the USPSTF was much less enthusiastic about daily aspirin as a primary preventative.⁴ The recommendation is now a “C” for those ages 40 to 59 years who have a 10-year CVD risk ≥ 10%. Those most likely to benefit have a 10-year CVD risk > 15%.

Continue to: The recommendation pertains...

The recommendation pertains to the initiation of aspirin, not the continuation or discontinuation for those who have been using aspirin without complications. The ­USPSTF suggests that the dose of aspirin, if used, should be 81 mg and that it should not be continued past age 75 years. A more detailed discussion of this recommendation and some of its clinical considerations is contained in a recent Practice Alert.⁵

“D” is for “don’t”(with a few caveats)

Avoiding unnecessary or harmful testing and treatments is just as important as offering preventive services of proven benefit. Those practices listed in TABLE 1¹ with a “D” recommendation should be avoided in practice.

However, it is worth mentioning that, while postmenopausal hormone replacement therapy should not be prescribed for the prevention of chronic conditions, this does not mean it should not be used to alleviate postmenopausal vasomotor symptoms—albeit for a limited period of time.

Also, it is important to appreciate the difference between screening and diagnostic tests. When the USPSTF recommends for or against screening, they are referring to the practice in asymptomatic people. The recommendation does not pertain to diagnostic testing to confirm or rule out a condition in a person with symptoms suggestive of a condition. Thus, the recommendation against screening adults for chronic obstructive pulmonary disease applies only to those without symptoms.

Be selective with services graded “C” or “I”

The USPSTF recommendations that require the most clinical judgment and are the most difficult to implement are those with a “C.” Few individuals will benefit from these interventions, and those most likely to benefit usually are described in the clinical considerations that accompany the recommendation. These interventions are time consuming and may be subject to insurance co-pays and deductibles. All 3 “C” recommendations made in 2022 (see TABLE 1¹) pertained to the prevention of CVD, still the leading cause of death in the United States.

Continue it: As "I" statement is not the same...

An “I” statement is not the same as a recommendation against the service—but if the service is offered, both the physician and the patient should understand the uncertainty involved. The services the USPSTF has determined lack sufficient evidence of benefits and/or harms are often recommended by other­ organizations—and in fact, the use of the “I” statement distinguishes the USPSTF from other clinical guideline groups.

If good evidence does not exist, the ­USPSTF will not make a recommendation. This is the main reason that, when the USPSTF reevaluates a topic (about every 6 to 7 years), they seldom make significant changes to their previous recommendations. Good evidence tends to survive the test of time.

However, adherence to this standard can cause the USPSTF to lag behind other guideline producers for some commonly used interventions. This delay can be considered a detriment if the intervention eventually proves to be effective, but it is a benefit if the intervention proves to be nonbeneficial or even harmful.

Putting recommendations into best practice

Given the time constraints in primary care practice, the most efficient way of providing high-quality, clinical preventive services is by implementing USPSTF “A” and “B” recommendations, being very selective about who receives an intervention with a “C” recommendation or “I” statement, and avoiding interventions with a “D” recommendation. 

BREAKING NEWS

At press time, the USPSTF issued a draft recommendation statement that women begin receiving biennial mammograms starting at age 40 years (through age 74 years). For more, see: www.uspreventiveservicestaskforce.org/uspstf/draft-recommendation/breast-cancer-screening-adults#fullrecommendation start

The US Preventive Services Task Force (USPSTF) had a productive year in 2022. In total, the USPSTF

• reviewed and made recommendations on 4 new topics
• re-assessed 19 previous recommendations on 11 topics
• made 24 separate recommendations, including 1 “A,” 3 “B,” 3 “C,” and 5 “D” recommendations and 12 “I” statements (see TABLE 1¹).

A note about grading. TABLE 2² outlines the USPSTF’s grade definitions and suggestions for practice. The importance of an “A” or “B” recommendation rests historically with the requirement in the Affordable Care Act (ACA) that all USPSTF-recommended services with either of these grades have to be provided by commercial health insurance plans with no co-pay or deductible applied. (The legal challenge in Texas to the ACA’s preventive care provision may change that.)

What’s new?

The USPSTF’s review of 4 new topics exceeds the entity’s output in each of the prior 4 years, when the Task Force was able to add only 1 or 2 topics annually. However, 3 of the 4 new topics in 2022 resulted in an insufficient evidence or “I” statement, which means there was not enough evidence to judge the relative benefits and harms of the intervention.

These 3 included screening for type 2 diabetes in children and adolescents younger than 18 years; screening for obstructive sleep apnea in the general adult population (ages ≥ 18 years); and screening for eating disorders in adolescents and adults. The fourth new topic, screening for anxiety in children and adolescents, resulted in a “B” recommendation and was described in a recent Practice Alert.³

Major revision to 1 prior recommendation

Only 1 of the 19 revisited recommendations resulted in a major revision: the use of daily aspirin for primary prevention of cardiovascular disease (CVD). Note that it does not apply to those who have established CVD, in whom the use of aspirin would be considered tertiary prevention or harm reduction.

In 2016, the USPSTF recommended (with a “B” grade) the use of daily low-dose aspirin for those ages 50 to 59 years who had a 10-year risk for a CVD event > 10%; no increased risk for bleeding; at least a 10-year life expectancy; and a willingness to take aspirin for 10 years. For those ages 60 to 69 years with a 10-year risk for a CVD event > 10%, the recommendation was a “C.” For those younger than 50 and older than 70, an “I” statement was issued.

In 2022, the USPSTF was much less enthusiastic about daily aspirin as a primary preventative.⁴ The recommendation is now a “C” for those ages 40 to 59 years who have a 10-year CVD risk ≥ 10%. Those most likely to benefit have a 10-year CVD risk > 15%.

Continue to: The recommendation pertains...

The recommendation pertains to the initiation of aspirin, not the continuation or discontinuation for those who have been using aspirin without complications. The ­USPSTF suggests that the dose of aspirin, if used, should be 81 mg and that it should not be continued past age 75 years. A more detailed discussion of this recommendation and some of its clinical considerations is contained in a recent Practice Alert.⁵

“D” is for “don’t”(with a few caveats)

Avoiding unnecessary or harmful testing and treatments is just as important as offering preventive services of proven benefit. Those practices listed in TABLE 1¹ with a “D” recommendation should be avoided in practice.

However, it is worth mentioning that, while postmenopausal hormone replacement therapy should not be prescribed for the prevention of chronic conditions, this does not mean it should not be used to alleviate postmenopausal vasomotor symptoms—albeit for a limited period of time.

Also, it is important to appreciate the difference between screening and diagnostic tests. When the USPSTF recommends for or against screening, they are referring to the practice in asymptomatic people. The recommendation does not pertain to diagnostic testing to confirm or rule out a condition in a person with symptoms suggestive of a condition. Thus, the recommendation against screening adults for chronic obstructive pulmonary disease applies only to those without symptoms.

Be selective with services graded “C” or “I”

The USPSTF recommendations that require the most clinical judgment and are the most difficult to implement are those with a “C.” Few individuals will benefit from these interventions, and those most likely to benefit usually are described in the clinical considerations that accompany the recommendation. These interventions are time consuming and may be subject to insurance co-pays and deductibles. All 3 “C” recommendations made in 2022 (see TABLE 1¹) pertained to the prevention of CVD, still the leading cause of death in the United States.

Continue it: As "I" statement is not the same...

An “I” statement is not the same as a recommendation against the service—but if the service is offered, both the physician and the patient should understand the uncertainty involved. The services the USPSTF has determined lack sufficient evidence of benefits and/or harms are often recommended by other­ organizations—and in fact, the use of the “I” statement distinguishes the USPSTF from other clinical guideline groups.

If good evidence does not exist, the ­USPSTF will not make a recommendation. This is the main reason that, when the USPSTF reevaluates a topic (about every 6 to 7 years), they seldom make significant changes to their previous recommendations. Good evidence tends to survive the test of time.

However, adherence to this standard can cause the USPSTF to lag behind other guideline producers for some commonly used interventions. This delay can be considered a detriment if the intervention eventually proves to be effective, but it is a benefit if the intervention proves to be nonbeneficial or even harmful.

Putting recommendations into best practice

Given the time constraints in primary care practice, the most efficient way of providing high-quality, clinical preventive services is by implementing USPSTF “A” and “B” recommendations, being very selective about who receives an intervention with a “C” recommendation or “I” statement, and avoiding interventions with a “D” recommendation. 

BREAKING NEWS

At press time, the USPSTF issued a draft recommendation statement that women begin receiving biennial mammograms starting at age 40 years (through age 74 years). For more, see: www.uspreventiveservicestaskforce.org/uspstf/draft-recommendation/breast-cancer-screening-adults#fullrecommendation start

The US Preventive Services Task Force (USPSTF) had a productive year in 2022. In total, the USPSTF

• reviewed and made recommendations on 4 new topics
• re-assessed 19 previous recommendations on 11 topics
• made 24 separate recommendations, including 1 “A,” 3 “B,” 3 “C,” and 5 “D” recommendations and 12 “I” statements (see TABLE 1¹).

A note about grading. TABLE 2² outlines the USPSTF’s grade definitions and suggestions for practice. The importance of an “A” or “B” recommendation rests historically with the requirement in the Affordable Care Act (ACA) that all USPSTF-recommended services with either of these grades have to be provided by commercial health insurance plans with no co-pay or deductible applied. (The legal challenge in Texas to the ACA’s preventive care provision may change that.)

What’s new?

The USPSTF’s review of 4 new topics exceeds the entity’s output in each of the prior 4 years, when the Task Force was able to add only 1 or 2 topics annually. However, 3 of the 4 new topics in 2022 resulted in an insufficient evidence or “I” statement, which means there was not enough evidence to judge the relative benefits and harms of the intervention.

These 3 included screening for type 2 diabetes in children and adolescents younger than 18 years; screening for obstructive sleep apnea in the general adult population (ages ≥ 18 years); and screening for eating disorders in adolescents and adults. The fourth new topic, screening for anxiety in children and adolescents, resulted in a “B” recommendation and was described in a recent Practice Alert.³

Major revision to 1 prior recommendation

Only 1 of the 19 revisited recommendations resulted in a major revision: the use of daily aspirin for primary prevention of cardiovascular disease (CVD). Note that it does not apply to those who have established CVD, in whom the use of aspirin would be considered tertiary prevention or harm reduction.

In 2016, the USPSTF recommended (with a “B” grade) the use of daily low-dose aspirin for those ages 50 to 59 years who had a 10-year risk for a CVD event > 10%; no increased risk for bleeding; at least a 10-year life expectancy; and a willingness to take aspirin for 10 years. For those ages 60 to 69 years with a 10-year risk for a CVD event > 10%, the recommendation was a “C.” For those younger than 50 and older than 70, an “I” statement was issued.

In 2022, the USPSTF was much less enthusiastic about daily aspirin as a primary preventative.⁴ The recommendation is now a “C” for those ages 40 to 59 years who have a 10-year CVD risk ≥ 10%. Those most likely to benefit have a 10-year CVD risk > 15%.

Continue to: The recommendation pertains...

The recommendation pertains to the initiation of aspirin, not the continuation or discontinuation for those who have been using aspirin without complications. The ­USPSTF suggests that the dose of aspirin, if used, should be 81 mg and that it should not be continued past age 75 years. A more detailed discussion of this recommendation and some of its clinical considerations is contained in a recent Practice Alert.⁵

“D” is for “don’t”(with a few caveats)

Avoiding unnecessary or harmful testing and treatments is just as important as offering preventive services of proven benefit. Those practices listed in TABLE 1¹ with a “D” recommendation should be avoided in practice.

However, it is worth mentioning that, while postmenopausal hormone replacement therapy should not be prescribed for the prevention of chronic conditions, this does not mean it should not be used to alleviate postmenopausal vasomotor symptoms—albeit for a limited period of time.

Also, it is important to appreciate the difference between screening and diagnostic tests. When the USPSTF recommends for or against screening, they are referring to the practice in asymptomatic people. The recommendation does not pertain to diagnostic testing to confirm or rule out a condition in a person with symptoms suggestive of a condition. Thus, the recommendation against screening adults for chronic obstructive pulmonary disease applies only to those without symptoms.

Be selective with services graded “C” or “I”

The USPSTF recommendations that require the most clinical judgment and are the most difficult to implement are those with a “C.” Few individuals will benefit from these interventions, and those most likely to benefit usually are described in the clinical considerations that accompany the recommendation. These interventions are time consuming and may be subject to insurance co-pays and deductibles. All 3 “C” recommendations made in 2022 (see TABLE 1¹) pertained to the prevention of CVD, still the leading cause of death in the United States.

Continue it: As "I" statement is not the same...

An “I” statement is not the same as a recommendation against the service—but if the service is offered, both the physician and the patient should understand the uncertainty involved. The services the USPSTF has determined lack sufficient evidence of benefits and/or harms are often recommended by other­ organizations—and in fact, the use of the “I” statement distinguishes the USPSTF from other clinical guideline groups.

If good evidence does not exist, the ­USPSTF will not make a recommendation. This is the main reason that, when the USPSTF reevaluates a topic (about every 6 to 7 years), they seldom make significant changes to their previous recommendations. Good evidence tends to survive the test of time.

However, adherence to this standard can cause the USPSTF to lag behind other guideline producers for some commonly used interventions. This delay can be considered a detriment if the intervention eventually proves to be effective, but it is a benefit if the intervention proves to be nonbeneficial or even harmful.

Putting recommendations into best practice

Given the time constraints in primary care practice, the most efficient way of providing high-quality, clinical preventive services is by implementing USPSTF “A” and “B” recommendations, being very selective about who receives an intervention with a “C” recommendation or “I” statement, and avoiding interventions with a “D” recommendation. 

BREAKING NEWS

At press time, the USPSTF issued a draft recommendation statement that women begin receiving biennial mammograms starting at age 40 years (through age 74 years). For more, see: www.uspreventiveservicestaskforce.org/uspstf/draft-recommendation/breast-cancer-screening-adults#fullrecommendation start

Most adults in the United States (70%) are anxious or extremely anxious about keeping themselves or their families safe, with 42% very anxious about gun violence, results of a national mental health poll conducted by the American Psychiatric Association (APA) show.

“There is a lot of worry in the world right now about economic uncertainty, about violence, about how we’re going to come out of this period of time,” APA President Rebecca W. Brendel, MD, JD, said during an APA press briefing announcing the latest poll results.

Brendel said the results are an important reminder and opportunity for psychiatrists to put their finger on the pulse of Americans’ mental health.

“If 70% of people are feeling unsafe, we need to come up with individual and also society-based solutions to help people move forward so that we can see a brighter future and not experience so much anxiety,” she added.

The poll was conducted between April 20 and 22, 2023, among a nationally representative sample of 2,201 adults. The analysis also tracks data from a poll conducted between April 23 and 24, 2022, among a sample of 2,210 adults.

Overall, nearly two in five adults (37%) reported feeling more anxious than they were at this time last year, which is higher than in 2022 (32%) but lower than in 2021 (41%) and 2020 (62%).

About one-third (30%) of adults said they have consulted a mental health care professional, a slight uptick from 2022.

Other issues keeping Americans up at night include keeping their identity safe (68%), their health (66%), paying bills or expenses (65%), climate change (59%), the opioid epidemic (50%) and the impact of emerging technology on day-to-day life (45%).

Half of respondents reported they would be likely to consider a mental health treatment involving cannabis or marijuana, while most said they would be unlikely to consider a treatment involving psychedelics (59%) or ketamine (56%).

Two-thirds (68%) of American adults reported that their children and teenagers have more mental health problems than they did a decade ago.

More than 50% of parents are concerned about their children’s technology use (59%) and mental state (55%), and 31% have encountered difficulty scheduling appointments with mental health professionals for their children.

More than three-quarters (78%) of U.S. adults believe mental health affects physical health and that untreated mental illness has a significant negative effect on families (78%). About two-thirds (64%) believe untreated mental illness harms the economy.

One in three adults (34%) would not vote for a candidate for elected office who has a mental illness – up 7% from 2022.

“The majority of the public understands something we’ve been saying for a long time: Your mental health is about your health,” Saul Levin, MD, MPA, chief executive officer and medical director at the American Psychiatric Association, said in the release.

“It’s contingent upon us as a field to continue to spread that message, and that those who are experiencing mental health concerns aren’t alone and that there are ways to receive help,” Dr. Levin added.
 

A version of this article originally appeared on Medscape.com.

Most adults in the United States (70%) are anxious or extremely anxious about keeping themselves or their families safe, with 42% very anxious about gun violence, results of a national mental health poll conducted by the American Psychiatric Association (APA) show.

“There is a lot of worry in the world right now about economic uncertainty, about violence, about how we’re going to come out of this period of time,” APA President Rebecca W. Brendel, MD, JD, said during an APA press briefing announcing the latest poll results.

Brendel said the results are an important reminder and opportunity for psychiatrists to put their finger on the pulse of Americans’ mental health.

“If 70% of people are feeling unsafe, we need to come up with individual and also society-based solutions to help people move forward so that we can see a brighter future and not experience so much anxiety,” she added.

The poll was conducted between April 20 and 22, 2023, among a nationally representative sample of 2,201 adults. The analysis also tracks data from a poll conducted between April 23 and 24, 2022, among a sample of 2,210 adults.

Overall, nearly two in five adults (37%) reported feeling more anxious than they were at this time last year, which is higher than in 2022 (32%) but lower than in 2021 (41%) and 2020 (62%).

About one-third (30%) of adults said they have consulted a mental health care professional, a slight uptick from 2022.

Other issues keeping Americans up at night include keeping their identity safe (68%), their health (66%), paying bills or expenses (65%), climate change (59%), the opioid epidemic (50%) and the impact of emerging technology on day-to-day life (45%).

Half of respondents reported they would be likely to consider a mental health treatment involving cannabis or marijuana, while most said they would be unlikely to consider a treatment involving psychedelics (59%) or ketamine (56%).

Two-thirds (68%) of American adults reported that their children and teenagers have more mental health problems than they did a decade ago.

More than 50% of parents are concerned about their children’s technology use (59%) and mental state (55%), and 31% have encountered difficulty scheduling appointments with mental health professionals for their children.

More than three-quarters (78%) of U.S. adults believe mental health affects physical health and that untreated mental illness has a significant negative effect on families (78%). About two-thirds (64%) believe untreated mental illness harms the economy.

One in three adults (34%) would not vote for a candidate for elected office who has a mental illness – up 7% from 2022.

“The majority of the public understands something we’ve been saying for a long time: Your mental health is about your health,” Saul Levin, MD, MPA, chief executive officer and medical director at the American Psychiatric Association, said in the release.

“It’s contingent upon us as a field to continue to spread that message, and that those who are experiencing mental health concerns aren’t alone and that there are ways to receive help,” Dr. Levin added.
 

A version of this article originally appeared on Medscape.com.

Most adults in the United States (70%) are anxious or extremely anxious about keeping themselves or their families safe, with 42% very anxious about gun violence, results of a national mental health poll conducted by the American Psychiatric Association (APA) show.

“There is a lot of worry in the world right now about economic uncertainty, about violence, about how we’re going to come out of this period of time,” APA President Rebecca W. Brendel, MD, JD, said during an APA press briefing announcing the latest poll results.

Brendel said the results are an important reminder and opportunity for psychiatrists to put their finger on the pulse of Americans’ mental health.

“If 70% of people are feeling unsafe, we need to come up with individual and also society-based solutions to help people move forward so that we can see a brighter future and not experience so much anxiety,” she added.

The poll was conducted between April 20 and 22, 2023, among a nationally representative sample of 2,201 adults. The analysis also tracks data from a poll conducted between April 23 and 24, 2022, among a sample of 2,210 adults.

Overall, nearly two in five adults (37%) reported feeling more anxious than they were at this time last year, which is higher than in 2022 (32%) but lower than in 2021 (41%) and 2020 (62%).

About one-third (30%) of adults said they have consulted a mental health care professional, a slight uptick from 2022.

Other issues keeping Americans up at night include keeping their identity safe (68%), their health (66%), paying bills or expenses (65%), climate change (59%), the opioid epidemic (50%) and the impact of emerging technology on day-to-day life (45%).

Half of respondents reported they would be likely to consider a mental health treatment involving cannabis or marijuana, while most said they would be unlikely to consider a treatment involving psychedelics (59%) or ketamine (56%).

Two-thirds (68%) of American adults reported that their children and teenagers have more mental health problems than they did a decade ago.

More than 50% of parents are concerned about their children’s technology use (59%) and mental state (55%), and 31% have encountered difficulty scheduling appointments with mental health professionals for their children.

More than three-quarters (78%) of U.S. adults believe mental health affects physical health and that untreated mental illness has a significant negative effect on families (78%). About two-thirds (64%) believe untreated mental illness harms the economy.

One in three adults (34%) would not vote for a candidate for elected office who has a mental illness – up 7% from 2022.

“The majority of the public understands something we’ve been saying for a long time: Your mental health is about your health,” Saul Levin, MD, MPA, chief executive officer and medical director at the American Psychiatric Association, said in the release.

“It’s contingent upon us as a field to continue to spread that message, and that those who are experiencing mental health concerns aren’t alone and that there are ways to receive help,” Dr. Levin added.
 

A version of this article originally appeared on Medscape.com.

The number of cancer survivors who report functional limitation has more than doubled in 20 years, according to a research letter published in JAMA Oncology.

Vishal Patel, BS, a student at the Dell Medical School at The University of Texas at Austin, and colleagues identified 51,258 cancer survivors from the National Health Interview Survey, representing a weighted population of approximately 178.8 million from 1999 to 2018.

Most survivors were women (60.2%) and were at least 65 years old (55.4%). In 1999, 3.6 million weighted survivors reported functional limitation. In 2018, the number increased to 8.2 million, a 2.25-fold increase.

The number of survivors who reported no limitations also increased, but not by as much. That group grew 1.34-fold during the study period.

For context, “the 70% prevalence of functional limitation among survivors in 2018 is nearly twice that of the general population,” the authors wrote.
 

Patients surveyed on function

Functional limitation was defined as “self-reported difficulty performing any of 12 routine physical or social activities without assistance.” Examples of the activities included difficulty sitting for more than 2 hours, difficulty participating in social activities or difficulty pushing or pulling an object the size of a living room chair.

Over the 2 decades analyzed, the adjusted prevalence of functional limitation was highest among survivors of pancreatic cancer (80.3%) and lung cancer (76.5%). Prevalence was lowest for survivors of melanoma (62.2%), breast (61.8%) and prostate (59.5%) cancers.
 

Not just a result of living longer

Mr. Patel told this publication that one assumption people might make when they read these results is that people are just living longer with cancer and losing functional ability accordingly.

“But, in fact, we found that the youngest [– those less than 65 years–] actually contributed to this trend more than the oldest people, which means it’s not just [happening], because people are getting older,” he said.

Hispanic and Black individuals had disproportionately higher increases in functional limitation; percentage point increases over the 2 decades were 19.5 for Black people, 25.1 for Hispanic people and 12.5 for White people. There may be a couple of reasons for that, Mr. Patel noted.

Those who are Black or Hispanic tend to have less access to cancer survivorship care for reasons including insurance status and historic health care inequities, he noted.

“The other potential reason is that they have had less access to cancer care historically. And if, 20 years ago Black and Hispanic individuals didn’t have access to some chemotherapies, and now they do, maybe it’s the increased access to care that’s causing these functional limitations. Because chemotherapy can sometimes be very toxic. It may be sort of a catch-up toxicity,” he said.
 

Quality of life beyond survivorship

Mr. Patel said the results seem to call for building on improved survival rates by tracking and improving function.

“It’s good to celebrate that there are more survivors. But now that we can keep people alive longer, maybe we can shift gears to improving their quality of life,” he said.

The more-than-doubling of functional limitations over 2 decades “is a very sobering trend,” he noted, while pointing out that the functional limitations applied to 8 million people in the United States – people whose needs are not being met.

There’s no sign of the trend stopping, he continued. “We saw no downward trend, only an upward trend.”

Increasingly, including functionality as an endpoint in cancer trials, in addition to improvements in mortality, is one place to start, he added.

“Our findings suggest an urgent need for care teams to understand and address function, for researchers to evaluate function as a core outcome in trials, and for health systems and policy makers to reimagine survivorship care, recognizing the burden of cancer and its treatment on physical, psychosocial, and cognitive function,” the authors wrote in their paper. Limitations of the study include the potential for recall bias, lack of cancer staging or treatment information, and the subjective perception of function.

A coauthor reported personal fees from Astellas, AstraZeneca, AAA, Blue Earth, Janssen, Lantheus, Myovant, Myriad Genetics, Novartis, Telix, and Sanofi, as well as grants from Pfizer and Bayer during the conduct of the study. No other disclosures were reported.

The number of cancer survivors who report functional limitation has more than doubled in 20 years, according to a research letter published in JAMA Oncology.

Vishal Patel, BS, a student at the Dell Medical School at The University of Texas at Austin, and colleagues identified 51,258 cancer survivors from the National Health Interview Survey, representing a weighted population of approximately 178.8 million from 1999 to 2018.

Most survivors were women (60.2%) and were at least 65 years old (55.4%). In 1999, 3.6 million weighted survivors reported functional limitation. In 2018, the number increased to 8.2 million, a 2.25-fold increase.

The number of survivors who reported no limitations also increased, but not by as much. That group grew 1.34-fold during the study period.

For context, “the 70% prevalence of functional limitation among survivors in 2018 is nearly twice that of the general population,” the authors wrote.
 

Patients surveyed on function

Functional limitation was defined as “self-reported difficulty performing any of 12 routine physical or social activities without assistance.” Examples of the activities included difficulty sitting for more than 2 hours, difficulty participating in social activities or difficulty pushing or pulling an object the size of a living room chair.

Over the 2 decades analyzed, the adjusted prevalence of functional limitation was highest among survivors of pancreatic cancer (80.3%) and lung cancer (76.5%). Prevalence was lowest for survivors of melanoma (62.2%), breast (61.8%) and prostate (59.5%) cancers.
 

Not just a result of living longer

Mr. Patel told this publication that one assumption people might make when they read these results is that people are just living longer with cancer and losing functional ability accordingly.

“But, in fact, we found that the youngest [– those less than 65 years–] actually contributed to this trend more than the oldest people, which means it’s not just [happening], because people are getting older,” he said.

Hispanic and Black individuals had disproportionately higher increases in functional limitation; percentage point increases over the 2 decades were 19.5 for Black people, 25.1 for Hispanic people and 12.5 for White people. There may be a couple of reasons for that, Mr. Patel noted.

Those who are Black or Hispanic tend to have less access to cancer survivorship care for reasons including insurance status and historic health care inequities, he noted.

“The other potential reason is that they have had less access to cancer care historically. And if, 20 years ago Black and Hispanic individuals didn’t have access to some chemotherapies, and now they do, maybe it’s the increased access to care that’s causing these functional limitations. Because chemotherapy can sometimes be very toxic. It may be sort of a catch-up toxicity,” he said.
 

Quality of life beyond survivorship

Mr. Patel said the results seem to call for building on improved survival rates by tracking and improving function.

“It’s good to celebrate that there are more survivors. But now that we can keep people alive longer, maybe we can shift gears to improving their quality of life,” he said.

The more-than-doubling of functional limitations over 2 decades “is a very sobering trend,” he noted, while pointing out that the functional limitations applied to 8 million people in the United States – people whose needs are not being met.

There’s no sign of the trend stopping, he continued. “We saw no downward trend, only an upward trend.”

Increasingly, including functionality as an endpoint in cancer trials, in addition to improvements in mortality, is one place to start, he added.

“Our findings suggest an urgent need for care teams to understand and address function, for researchers to evaluate function as a core outcome in trials, and for health systems and policy makers to reimagine survivorship care, recognizing the burden of cancer and its treatment on physical, psychosocial, and cognitive function,” the authors wrote in their paper. Limitations of the study include the potential for recall bias, lack of cancer staging or treatment information, and the subjective perception of function.

A coauthor reported personal fees from Astellas, AstraZeneca, AAA, Blue Earth, Janssen, Lantheus, Myovant, Myriad Genetics, Novartis, Telix, and Sanofi, as well as grants from Pfizer and Bayer during the conduct of the study. No other disclosures were reported.

The number of cancer survivors who report functional limitation has more than doubled in 20 years, according to a research letter published in JAMA Oncology.

Vishal Patel, BS, a student at the Dell Medical School at The University of Texas at Austin, and colleagues identified 51,258 cancer survivors from the National Health Interview Survey, representing a weighted population of approximately 178.8 million from 1999 to 2018.

Most survivors were women (60.2%) and were at least 65 years old (55.4%). In 1999, 3.6 million weighted survivors reported functional limitation. In 2018, the number increased to 8.2 million, a 2.25-fold increase.

The number of survivors who reported no limitations also increased, but not by as much. That group grew 1.34-fold during the study period.

For context, “the 70% prevalence of functional limitation among survivors in 2018 is nearly twice that of the general population,” the authors wrote.
 

Patients surveyed on function

Functional limitation was defined as “self-reported difficulty performing any of 12 routine physical or social activities without assistance.” Examples of the activities included difficulty sitting for more than 2 hours, difficulty participating in social activities or difficulty pushing or pulling an object the size of a living room chair.

Over the 2 decades analyzed, the adjusted prevalence of functional limitation was highest among survivors of pancreatic cancer (80.3%) and lung cancer (76.5%). Prevalence was lowest for survivors of melanoma (62.2%), breast (61.8%) and prostate (59.5%) cancers.
 

Not just a result of living longer

Mr. Patel told this publication that one assumption people might make when they read these results is that people are just living longer with cancer and losing functional ability accordingly.

“But, in fact, we found that the youngest [– those less than 65 years–] actually contributed to this trend more than the oldest people, which means it’s not just [happening], because people are getting older,” he said.

Hispanic and Black individuals had disproportionately higher increases in functional limitation; percentage point increases over the 2 decades were 19.5 for Black people, 25.1 for Hispanic people and 12.5 for White people. There may be a couple of reasons for that, Mr. Patel noted.

Those who are Black or Hispanic tend to have less access to cancer survivorship care for reasons including insurance status and historic health care inequities, he noted.

“The other potential reason is that they have had less access to cancer care historically. And if, 20 years ago Black and Hispanic individuals didn’t have access to some chemotherapies, and now they do, maybe it’s the increased access to care that’s causing these functional limitations. Because chemotherapy can sometimes be very toxic. It may be sort of a catch-up toxicity,” he said.
 

Quality of life beyond survivorship

Mr. Patel said the results seem to call for building on improved survival rates by tracking and improving function.

“It’s good to celebrate that there are more survivors. But now that we can keep people alive longer, maybe we can shift gears to improving their quality of life,” he said.

The more-than-doubling of functional limitations over 2 decades “is a very sobering trend,” he noted, while pointing out that the functional limitations applied to 8 million people in the United States – people whose needs are not being met.

There’s no sign of the trend stopping, he continued. “We saw no downward trend, only an upward trend.”

Increasingly, including functionality as an endpoint in cancer trials, in addition to improvements in mortality, is one place to start, he added.

“Our findings suggest an urgent need for care teams to understand and address function, for researchers to evaluate function as a core outcome in trials, and for health systems and policy makers to reimagine survivorship care, recognizing the burden of cancer and its treatment on physical, psychosocial, and cognitive function,” the authors wrote in their paper. Limitations of the study include the potential for recall bias, lack of cancer staging or treatment information, and the subjective perception of function.

A coauthor reported personal fees from Astellas, AstraZeneca, AAA, Blue Earth, Janssen, Lantheus, Myovant, Myriad Genetics, Novartis, Telix, and Sanofi, as well as grants from Pfizer and Bayer during the conduct of the study. No other disclosures were reported.

Overweight boy, infertile man?

When it comes to causes of infertility, history and science have generally focused on women. A lot of the research overlooks men, but some previous studies have suggested that male infertility contributes to about half of the cases of couple infertility. The reason for much of that male infertility, however, has been a mystery. Until now.

A group of Italian investigators looked at the declining trend in sperm counts over the past 40 years and the increase of childhood obesity. Is there a correlation? The researchers think so. Childhood obesity can be linked to multiple causes, but the researchers zeroed in on the effect that obesity has on metabolic rates and, therefore, testicular growth.

Collecting data on testicular volume, body mass index (BMI), and insulin resistance from 268 boys aged 2-18 years, the researchers discovered that those with normal weight and normal insulin levels had testicular volumes 1.5 times higher than their overweight counterparts and 1.5-2 times higher than those with hyperinsulinemia, building a case for obesity being a factor for infertility later in life.

Since low testicular volume is associated with lower sperm count and production as an adult, putting two and two together makes a compelling argument for childhood obesity being a major male infertility culprit. It also creates even more urgency for the health care industry and community decision makers to focus on childhood obesity.

It sure would be nice to be able to take one of the many risk factors for future human survival off the table. Maybe by taking something, like cake, off the table.

Fecal transplantation moves to the kitchen

Fecal microbiota transplantation is an effective way to treat Clostridioides difficile infection, but, in the end, it’s still a transplantation procedure involving a nasogastric or colorectal tube or rather large oral capsules with a demanding (30-40 capsules over 2 days) dosage. Please, Science, tell us there’s a better way.

CC BY-NC-ND 4.0, Adèle Rakotonirina et Nathalie Boulens

Science, in the form of investigators at the University of Geneva and Lausanne University Hospital in Switzerland, has spoken, and there may be a better way. Presenting fecal beads: All the bacterial goodness of donor stool without the tubal insertions or massive quantities of giant capsules.

We know you’re scoffing out there, but it’s true. All you need is a little alginate, which is a “biocompatible polysaccharide isolated from brown algae” of the Phaeophyceae family. The donor feces is microencapsulated by mixing it with the alginate, dropping that mixture into water containing calcium chloride, turning it into a gel, and then freeze-drying the gel into small (just 2 mm), solid beads.

Sounds plausible enough, but what do you do with them? “These brownish beads can be easily dispersed in a liquid or food that is pleasant to eat. They also have no taste,” senior author Eric Allémann, PhD, said in a statement released by the University of Geneva.

Pleasant to eat? No taste? So which is it? If you really want to know, watch fecal beads week on the new season of “The Great British Baking Show,” when Paul and Prue judge poop baked into crumpets, crepes, and crostatas. Yum.
 

We’re on the low-oxygen diet

Nine out of ten doctors agree: Oxygen is more important to your continued well-being than food. After all, a human can go weeks without food, but just minutes without oxygen. However, ten out of ten doctors agree that the United States has an obesity problem. They all also agree that previous research has shown soldiers who train at high altitudes lose more weight than those training at lower altitudes.

PBRC

So, on the one hand, we have a country full of overweight people, and on the other, we have low oxygen levels causing weight loss. The solution, then, is obvious: Stop breathing.

More specifically (and somewhat less facetiously), researchers from Louisiana have launched the Low Oxygen and Weight Status trial and are currently recruiting individuals with BMIs of 30-40 to, uh, suffocate themselves. No, no, it’s okay, it’s just when they’re sleeping.

Fine, straight face. Participants in the LOWS trial will undergo an 8-week period when they will consume a controlled weight-loss diet and spend their nights in a hypoxic sealed tent, where they will sleep in an environment with an oxygen level equivalent to 8,500 feet above sea level (roughly equivalent to Aspen, Colo.). They will be compared with people on the same diet who sleep in a normal, sea-level oxygen environment.

The study’s goal is to determine whether or not spending time in a low-oxygen environment will suppress appetite, increase energy expenditure, and improve weight loss and insulin sensitivity. Excessive weight loss in high-altitude environments isn’t a good thing for soldiers – they kind of need their muscles and body weight to do the whole soldiering thing – but it could be great for people struggling to lose those last few pounds. And it also may prove LOTME’s previous thesis: Air is not good.

Overweight boy, infertile man?

When it comes to causes of infertility, history and science have generally focused on women. A lot of the research overlooks men, but some previous studies have suggested that male infertility contributes to about half of the cases of couple infertility. The reason for much of that male infertility, however, has been a mystery. Until now.

A group of Italian investigators looked at the declining trend in sperm counts over the past 40 years and the increase of childhood obesity. Is there a correlation? The researchers think so. Childhood obesity can be linked to multiple causes, but the researchers zeroed in on the effect that obesity has on metabolic rates and, therefore, testicular growth.

Collecting data on testicular volume, body mass index (BMI), and insulin resistance from 268 boys aged 2-18 years, the researchers discovered that those with normal weight and normal insulin levels had testicular volumes 1.5 times higher than their overweight counterparts and 1.5-2 times higher than those with hyperinsulinemia, building a case for obesity being a factor for infertility later in life.

Since low testicular volume is associated with lower sperm count and production as an adult, putting two and two together makes a compelling argument for childhood obesity being a major male infertility culprit. It also creates even more urgency for the health care industry and community decision makers to focus on childhood obesity.

It sure would be nice to be able to take one of the many risk factors for future human survival off the table. Maybe by taking something, like cake, off the table.

Fecal transplantation moves to the kitchen

Fecal microbiota transplantation is an effective way to treat Clostridioides difficile infection, but, in the end, it’s still a transplantation procedure involving a nasogastric or colorectal tube or rather large oral capsules with a demanding (30-40 capsules over 2 days) dosage. Please, Science, tell us there’s a better way.

CC BY-NC-ND 4.0, Adèle Rakotonirina et Nathalie Boulens

Science, in the form of investigators at the University of Geneva and Lausanne University Hospital in Switzerland, has spoken, and there may be a better way. Presenting fecal beads: All the bacterial goodness of donor stool without the tubal insertions or massive quantities of giant capsules.

We know you’re scoffing out there, but it’s true. All you need is a little alginate, which is a “biocompatible polysaccharide isolated from brown algae” of the Phaeophyceae family. The donor feces is microencapsulated by mixing it with the alginate, dropping that mixture into water containing calcium chloride, turning it into a gel, and then freeze-drying the gel into small (just 2 mm), solid beads.

Sounds plausible enough, but what do you do with them? “These brownish beads can be easily dispersed in a liquid or food that is pleasant to eat. They also have no taste,” senior author Eric Allémann, PhD, said in a statement released by the University of Geneva.

Pleasant to eat? No taste? So which is it? If you really want to know, watch fecal beads week on the new season of “The Great British Baking Show,” when Paul and Prue judge poop baked into crumpets, crepes, and crostatas. Yum.
 

We’re on the low-oxygen diet

Nine out of ten doctors agree: Oxygen is more important to your continued well-being than food. After all, a human can go weeks without food, but just minutes without oxygen. However, ten out of ten doctors agree that the United States has an obesity problem. They all also agree that previous research has shown soldiers who train at high altitudes lose more weight than those training at lower altitudes.

PBRC

So, on the one hand, we have a country full of overweight people, and on the other, we have low oxygen levels causing weight loss. The solution, then, is obvious: Stop breathing.

More specifically (and somewhat less facetiously), researchers from Louisiana have launched the Low Oxygen and Weight Status trial and are currently recruiting individuals with BMIs of 30-40 to, uh, suffocate themselves. No, no, it’s okay, it’s just when they’re sleeping.

Fine, straight face. Participants in the LOWS trial will undergo an 8-week period when they will consume a controlled weight-loss diet and spend their nights in a hypoxic sealed tent, where they will sleep in an environment with an oxygen level equivalent to 8,500 feet above sea level (roughly equivalent to Aspen, Colo.). They will be compared with people on the same diet who sleep in a normal, sea-level oxygen environment.

The study’s goal is to determine whether or not spending time in a low-oxygen environment will suppress appetite, increase energy expenditure, and improve weight loss and insulin sensitivity. Excessive weight loss in high-altitude environments isn’t a good thing for soldiers – they kind of need their muscles and body weight to do the whole soldiering thing – but it could be great for people struggling to lose those last few pounds. And it also may prove LOTME’s previous thesis: Air is not good.

Overweight boy, infertile man?

When it comes to causes of infertility, history and science have generally focused on women. A lot of the research overlooks men, but some previous studies have suggested that male infertility contributes to about half of the cases of couple infertility. The reason for much of that male infertility, however, has been a mystery. Until now.

A group of Italian investigators looked at the declining trend in sperm counts over the past 40 years and the increase of childhood obesity. Is there a correlation? The researchers think so. Childhood obesity can be linked to multiple causes, but the researchers zeroed in on the effect that obesity has on metabolic rates and, therefore, testicular growth.

Collecting data on testicular volume, body mass index (BMI), and insulin resistance from 268 boys aged 2-18 years, the researchers discovered that those with normal weight and normal insulin levels had testicular volumes 1.5 times higher than their overweight counterparts and 1.5-2 times higher than those with hyperinsulinemia, building a case for obesity being a factor for infertility later in life.

Since low testicular volume is associated with lower sperm count and production as an adult, putting two and two together makes a compelling argument for childhood obesity being a major male infertility culprit. It also creates even more urgency for the health care industry and community decision makers to focus on childhood obesity.

It sure would be nice to be able to take one of the many risk factors for future human survival off the table. Maybe by taking something, like cake, off the table.

Fecal transplantation moves to the kitchen

Fecal microbiota transplantation is an effective way to treat Clostridioides difficile infection, but, in the end, it’s still a transplantation procedure involving a nasogastric or colorectal tube or rather large oral capsules with a demanding (30-40 capsules over 2 days) dosage. Please, Science, tell us there’s a better way.

CC BY-NC-ND 4.0, Adèle Rakotonirina et Nathalie Boulens

Science, in the form of investigators at the University of Geneva and Lausanne University Hospital in Switzerland, has spoken, and there may be a better way. Presenting fecal beads: All the bacterial goodness of donor stool without the tubal insertions or massive quantities of giant capsules.

We know you’re scoffing out there, but it’s true. All you need is a little alginate, which is a “biocompatible polysaccharide isolated from brown algae” of the Phaeophyceae family. The donor feces is microencapsulated by mixing it with the alginate, dropping that mixture into water containing calcium chloride, turning it into a gel, and then freeze-drying the gel into small (just 2 mm), solid beads.

Sounds plausible enough, but what do you do with them? “These brownish beads can be easily dispersed in a liquid or food that is pleasant to eat. They also have no taste,” senior author Eric Allémann, PhD, said in a statement released by the University of Geneva.

Pleasant to eat? No taste? So which is it? If you really want to know, watch fecal beads week on the new season of “The Great British Baking Show,” when Paul and Prue judge poop baked into crumpets, crepes, and crostatas. Yum.
 

We’re on the low-oxygen diet

Nine out of ten doctors agree: Oxygen is more important to your continued well-being than food. After all, a human can go weeks without food, but just minutes without oxygen. However, ten out of ten doctors agree that the United States has an obesity problem. They all also agree that previous research has shown soldiers who train at high altitudes lose more weight than those training at lower altitudes.

PBRC

So, on the one hand, we have a country full of overweight people, and on the other, we have low oxygen levels causing weight loss. The solution, then, is obvious: Stop breathing.

More specifically (and somewhat less facetiously), researchers from Louisiana have launched the Low Oxygen and Weight Status trial and are currently recruiting individuals with BMIs of 30-40 to, uh, suffocate themselves. No, no, it’s okay, it’s just when they’re sleeping.

Fine, straight face. Participants in the LOWS trial will undergo an 8-week period when they will consume a controlled weight-loss diet and spend their nights in a hypoxic sealed tent, where they will sleep in an environment with an oxygen level equivalent to 8,500 feet above sea level (roughly equivalent to Aspen, Colo.). They will be compared with people on the same diet who sleep in a normal, sea-level oxygen environment.

The study’s goal is to determine whether or not spending time in a low-oxygen environment will suppress appetite, increase energy expenditure, and improve weight loss and insulin sensitivity. Excessive weight loss in high-altitude environments isn’t a good thing for soldiers – they kind of need their muscles and body weight to do the whole soldiering thing – but it could be great for people struggling to lose those last few pounds. And it also may prove LOTME’s previous thesis: Air is not good.

SEATTLE – Use of a new kind of assay – sequential beta-hydroxybutyrate testing – with a cut-off for ruling out insulinoma in patients with hypoglycemia may allow for a shortening of the standard 72-hour fasting time, therefore yielding significant hospital cost savings, new data suggest.

Insulinomas are small, rare types of pancreatic tumors that are benign but secrete excess insulin, leading to hypoglycemia. More than 99% of people with insulinomas develop hypoglycemia within 72 hours, hence, the use of a 72-hour fast to detect these tumors.

But most people who are evaluated for hypoglycemia do not have an insulinoma and fasting in hospital for 3 days is burdensome and costly.  

As part of a quality improvement project, Cleveland Clinic endocrinology fellow Michelle D. Lundholm, MD, and colleagues modified their hospital’s protocol to include measurement of beta-hydroxybutyrate (BHB), a marker of insulin suppression, every 12 hours with a cutoff of ≥ 2.7mmol/L for stopping the fast if hypoglycemia (venous glucose ≤ 45mg/dL) hasn’t occurred. This intervention cut in half the number of patients who needed to fast for the full 72 hours, without missing any insulinomas.

“We are excited to share how a relatively simple adjustment to our protocol allowed us to successfully reduce the burden of fasting on patients and more effectively utilize hospital resources. We hope that this encourages other centers to consider doing the same,” Dr. Lundholm said in an interview.

“These data support a 48-hour fast. The literature supports that’s sufficient to detect 95% of insulinomas. ... But, given our small insulinoma cohort, we are looking forward to learning from other studies,” she added.

Dr. Lundholm presented the late-breaking oral abstract at the annual scientific & clinical congress of the American Association of Clinical Endocrinology.

Asked to comment, session moderator Jenna Sarvaideo, MD, said: “We’re often steeped in tradition. That’s why this abstract and this quality improvement project is so exciting to me because it challenges the history. … and I think it’s ultimately helping patients.”

Dr. Sarvaideo, of Clement J. Zablocki VA Medical Center, Milwaukee, noted that, typically, although the fast will be stopped before 72 hours if the patient develops hypoglycemia, “often they don’t, so we keep going on and on. If we just paid more attention to the beta-hydroxybutyrate, I think that would be practice changing.”

She added that more data would be optimal, given that there were under 100 patients in the study, “but I do think that devising protocols is … very much still at the hands of the endocrinologists. I think that this work could make groups reevaluate their protocol and change it, maybe even with a small dataset and then move on from there and see what they see.”

Indeed, Dr. Lundholm pointed out that some institutions, such as the Mayo Clinic, already include 6-hour BHB measurements (along with glucose and insulin) in their protocols.

“For any institution that already draws regular BHB levels like this, it would be very easy to implement a new stopping criterion without adding any additional costs,” she said in an interview.
 

All insulinomas became apparent in less than 48 hours

The first report to look at the value of testing BHB at regular intervals was published by the Mayo Clinic in 2005 after they noticed patients without insulinoma were complaining of ketosis symptoms such as foul breath and digestive problems toward the end of the fast.

However, although BHB testing is used today as part of the evaluation, it’s typically only drawn at the start of the protocol and again at the time of hypoglycemia or at the end of 72 hours because more frequent values hadn’t been thought to be useful for guiding clinical management, Dr. Lundholm explained. 

Between January 2018 and June 2020, Dr. Lundholm and colleagues followed 34 Cleveland Clinic patients who completed the usual 72-hour fast protocol. Overall, 71% were female, and 26% had undergone prior bariatric surgery procedures. Eleven (32%) developed hypoglycemia and stopped fasting. The other 23 (68%) fasted for the full 72 hours.

Dr. Lundholm and colleagues determined that the fast could have ended earlier in 35% of patients based on an elevated BHB without missing any insulinomas.

And so, in June 2020 the group revised their protocol to include the BHB ≥ 2.7mmol/L stopping criterion. Of the 30 patients evaluated from June 2020 to January 2023, 87% were female and 17% had undergone a bariatric procedure.

Here, 15 (50%) reached a BHB ≥ 2.7mmol/L and ended their fast at an average of 43.8 hours. Another seven (23%) ended the fast after developing hypoglycemia. Just eight patients (27%) fasted for the full 72 hours.

Overall, this resulted in approximately 376 fewer cumulative hours of inpatient admission than if patients had fasted for the full time.

Of the 64 patients who have completed the fasting protocol since 2018, seven (11%) who did have an insulinoma developed hypoglycemia within 48 hours and with a BHB < 2.7 mmol/L (median, 0.15).
 

Advantages: cost, adherence

A day in a general medicine bed at Cleveland Clinic was quoted as costing $2,420, based on publicly available information as of Jan. 1, 2023. “If half of patients leave 1 day earlier, this equates to about $1,210 per patient in savings from bed costs alone,” Dr. Lundholm told this news organization.  

The revised protocol required an additional two to four blood draws, depending on the length of the fast. “The cost of these extra blood tests varies by lab and by count, but even at its highest does not exceed the amount of savings from bed costs,” she noted.

Patient adherence is another potential benefit of the revised protocol.

“Any study that requires 72 hours of patient cooperation is a challenge, particularly in an uncomfortable position like fasting. When we looked at these adherence numbers, we found that the percentage of patients who prematurely ended their fast decreased from 35% to 17% with the updated protocol,” Dr. Lundholm continued.

“This translates to fewer inconclusive results and fewer readmissions for repeat 72-hour fasting. While this was not our primary outcome, it was another noted benefit of our change,” she said.

Dr. Lundholm and Dr. Sarvaideo have reported no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

SEATTLE – Use of a new kind of assay – sequential beta-hydroxybutyrate testing – with a cut-off for ruling out insulinoma in patients with hypoglycemia may allow for a shortening of the standard 72-hour fasting time, therefore yielding significant hospital cost savings, new data suggest.

Insulinomas are small, rare types of pancreatic tumors that are benign but secrete excess insulin, leading to hypoglycemia. More than 99% of people with insulinomas develop hypoglycemia within 72 hours, hence, the use of a 72-hour fast to detect these tumors.

But most people who are evaluated for hypoglycemia do not have an insulinoma and fasting in hospital for 3 days is burdensome and costly.  

As part of a quality improvement project, Cleveland Clinic endocrinology fellow Michelle D. Lundholm, MD, and colleagues modified their hospital’s protocol to include measurement of beta-hydroxybutyrate (BHB), a marker of insulin suppression, every 12 hours with a cutoff of ≥ 2.7mmol/L for stopping the fast if hypoglycemia (venous glucose ≤ 45mg/dL) hasn’t occurred. This intervention cut in half the number of patients who needed to fast for the full 72 hours, without missing any insulinomas.

“We are excited to share how a relatively simple adjustment to our protocol allowed us to successfully reduce the burden of fasting on patients and more effectively utilize hospital resources. We hope that this encourages other centers to consider doing the same,” Dr. Lundholm said in an interview.

“These data support a 48-hour fast. The literature supports that’s sufficient to detect 95% of insulinomas. ... But, given our small insulinoma cohort, we are looking forward to learning from other studies,” she added.

Dr. Lundholm presented the late-breaking oral abstract at the annual scientific & clinical congress of the American Association of Clinical Endocrinology.

Asked to comment, session moderator Jenna Sarvaideo, MD, said: “We’re often steeped in tradition. That’s why this abstract and this quality improvement project is so exciting to me because it challenges the history. … and I think it’s ultimately helping patients.”

Dr. Sarvaideo, of Clement J. Zablocki VA Medical Center, Milwaukee, noted that, typically, although the fast will be stopped before 72 hours if the patient develops hypoglycemia, “often they don’t, so we keep going on and on. If we just paid more attention to the beta-hydroxybutyrate, I think that would be practice changing.”

She added that more data would be optimal, given that there were under 100 patients in the study, “but I do think that devising protocols is … very much still at the hands of the endocrinologists. I think that this work could make groups reevaluate their protocol and change it, maybe even with a small dataset and then move on from there and see what they see.”

Indeed, Dr. Lundholm pointed out that some institutions, such as the Mayo Clinic, already include 6-hour BHB measurements (along with glucose and insulin) in their protocols.

“For any institution that already draws regular BHB levels like this, it would be very easy to implement a new stopping criterion without adding any additional costs,” she said in an interview.
 

All insulinomas became apparent in less than 48 hours

The first report to look at the value of testing BHB at regular intervals was published by the Mayo Clinic in 2005 after they noticed patients without insulinoma were complaining of ketosis symptoms such as foul breath and digestive problems toward the end of the fast.

However, although BHB testing is used today as part of the evaluation, it’s typically only drawn at the start of the protocol and again at the time of hypoglycemia or at the end of 72 hours because more frequent values hadn’t been thought to be useful for guiding clinical management, Dr. Lundholm explained. 

Between January 2018 and June 2020, Dr. Lundholm and colleagues followed 34 Cleveland Clinic patients who completed the usual 72-hour fast protocol. Overall, 71% were female, and 26% had undergone prior bariatric surgery procedures. Eleven (32%) developed hypoglycemia and stopped fasting. The other 23 (68%) fasted for the full 72 hours.

Dr. Lundholm and colleagues determined that the fast could have ended earlier in 35% of patients based on an elevated BHB without missing any insulinomas.

And so, in June 2020 the group revised their protocol to include the BHB ≥ 2.7mmol/L stopping criterion. Of the 30 patients evaluated from June 2020 to January 2023, 87% were female and 17% had undergone a bariatric procedure.

Here, 15 (50%) reached a BHB ≥ 2.7mmol/L and ended their fast at an average of 43.8 hours. Another seven (23%) ended the fast after developing hypoglycemia. Just eight patients (27%) fasted for the full 72 hours.

Overall, this resulted in approximately 376 fewer cumulative hours of inpatient admission than if patients had fasted for the full time.

Of the 64 patients who have completed the fasting protocol since 2018, seven (11%) who did have an insulinoma developed hypoglycemia within 48 hours and with a BHB < 2.7 mmol/L (median, 0.15).
 

Advantages: cost, adherence

A day in a general medicine bed at Cleveland Clinic was quoted as costing $2,420, based on publicly available information as of Jan. 1, 2023. “If half of patients leave 1 day earlier, this equates to about $1,210 per patient in savings from bed costs alone,” Dr. Lundholm told this news organization.  

The revised protocol required an additional two to four blood draws, depending on the length of the fast. “The cost of these extra blood tests varies by lab and by count, but even at its highest does not exceed the amount of savings from bed costs,” she noted.

Patient adherence is another potential benefit of the revised protocol.

“Any study that requires 72 hours of patient cooperation is a challenge, particularly in an uncomfortable position like fasting. When we looked at these adherence numbers, we found that the percentage of patients who prematurely ended their fast decreased from 35% to 17% with the updated protocol,” Dr. Lundholm continued.

“This translates to fewer inconclusive results and fewer readmissions for repeat 72-hour fasting. While this was not our primary outcome, it was another noted benefit of our change,” she said.

Dr. Lundholm and Dr. Sarvaideo have reported no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

SEATTLE – Use of a new kind of assay – sequential beta-hydroxybutyrate testing – with a cut-off for ruling out insulinoma in patients with hypoglycemia may allow for a shortening of the standard 72-hour fasting time, therefore yielding significant hospital cost savings, new data suggest.

Insulinomas are small, rare types of pancreatic tumors that are benign but secrete excess insulin, leading to hypoglycemia. More than 99% of people with insulinomas develop hypoglycemia within 72 hours, hence, the use of a 72-hour fast to detect these tumors.

But most people who are evaluated for hypoglycemia do not have an insulinoma and fasting in hospital for 3 days is burdensome and costly.  

As part of a quality improvement project, Cleveland Clinic endocrinology fellow Michelle D. Lundholm, MD, and colleagues modified their hospital’s protocol to include measurement of beta-hydroxybutyrate (BHB), a marker of insulin suppression, every 12 hours with a cutoff of ≥ 2.7mmol/L for stopping the fast if hypoglycemia (venous glucose ≤ 45mg/dL) hasn’t occurred. This intervention cut in half the number of patients who needed to fast for the full 72 hours, without missing any insulinomas.

“We are excited to share how a relatively simple adjustment to our protocol allowed us to successfully reduce the burden of fasting on patients and more effectively utilize hospital resources. We hope that this encourages other centers to consider doing the same,” Dr. Lundholm said in an interview.

“These data support a 48-hour fast. The literature supports that’s sufficient to detect 95% of insulinomas. ... But, given our small insulinoma cohort, we are looking forward to learning from other studies,” she added.

Dr. Lundholm presented the late-breaking oral abstract at the annual scientific & clinical congress of the American Association of Clinical Endocrinology.

Asked to comment, session moderator Jenna Sarvaideo, MD, said: “We’re often steeped in tradition. That’s why this abstract and this quality improvement project is so exciting to me because it challenges the history. … and I think it’s ultimately helping patients.”

Dr. Sarvaideo, of Clement J. Zablocki VA Medical Center, Milwaukee, noted that, typically, although the fast will be stopped before 72 hours if the patient develops hypoglycemia, “often they don’t, so we keep going on and on. If we just paid more attention to the beta-hydroxybutyrate, I think that would be practice changing.”

She added that more data would be optimal, given that there were under 100 patients in the study, “but I do think that devising protocols is … very much still at the hands of the endocrinologists. I think that this work could make groups reevaluate their protocol and change it, maybe even with a small dataset and then move on from there and see what they see.”

Indeed, Dr. Lundholm pointed out that some institutions, such as the Mayo Clinic, already include 6-hour BHB measurements (along with glucose and insulin) in their protocols.

“For any institution that already draws regular BHB levels like this, it would be very easy to implement a new stopping criterion without adding any additional costs,” she said in an interview.
 

All insulinomas became apparent in less than 48 hours

The first report to look at the value of testing BHB at regular intervals was published by the Mayo Clinic in 2005 after they noticed patients without insulinoma were complaining of ketosis symptoms such as foul breath and digestive problems toward the end of the fast.

However, although BHB testing is used today as part of the evaluation, it’s typically only drawn at the start of the protocol and again at the time of hypoglycemia or at the end of 72 hours because more frequent values hadn’t been thought to be useful for guiding clinical management, Dr. Lundholm explained. 

Between January 2018 and June 2020, Dr. Lundholm and colleagues followed 34 Cleveland Clinic patients who completed the usual 72-hour fast protocol. Overall, 71% were female, and 26% had undergone prior bariatric surgery procedures. Eleven (32%) developed hypoglycemia and stopped fasting. The other 23 (68%) fasted for the full 72 hours.

Dr. Lundholm and colleagues determined that the fast could have ended earlier in 35% of patients based on an elevated BHB without missing any insulinomas.

And so, in June 2020 the group revised their protocol to include the BHB ≥ 2.7mmol/L stopping criterion. Of the 30 patients evaluated from June 2020 to January 2023, 87% were female and 17% had undergone a bariatric procedure.

Here, 15 (50%) reached a BHB ≥ 2.7mmol/L and ended their fast at an average of 43.8 hours. Another seven (23%) ended the fast after developing hypoglycemia. Just eight patients (27%) fasted for the full 72 hours.

Overall, this resulted in approximately 376 fewer cumulative hours of inpatient admission than if patients had fasted for the full time.

Of the 64 patients who have completed the fasting protocol since 2018, seven (11%) who did have an insulinoma developed hypoglycemia within 48 hours and with a BHB < 2.7 mmol/L (median, 0.15).
 

Advantages: cost, adherence

A day in a general medicine bed at Cleveland Clinic was quoted as costing $2,420, based on publicly available information as of Jan. 1, 2023. “If half of patients leave 1 day earlier, this equates to about $1,210 per patient in savings from bed costs alone,” Dr. Lundholm told this news organization.  

The revised protocol required an additional two to four blood draws, depending on the length of the fast. “The cost of these extra blood tests varies by lab and by count, but even at its highest does not exceed the amount of savings from bed costs,” she noted.

Patient adherence is another potential benefit of the revised protocol.

“Any study that requires 72 hours of patient cooperation is a challenge, particularly in an uncomfortable position like fasting. When we looked at these adherence numbers, we found that the percentage of patients who prematurely ended their fast decreased from 35% to 17% with the updated protocol,” Dr. Lundholm continued.

“This translates to fewer inconclusive results and fewer readmissions for repeat 72-hour fasting. While this was not our primary outcome, it was another noted benefit of our change,” she said.

Dr. Lundholm and Dr. Sarvaideo have reported no relevant financial relationships.

A version of this article originally appeared on Medscape.com.

Sleep apnea is a heterogeneous group of conditions that may be attributable to a wide array of underlying conditions, with varying contributions of obstructive or central sleep-disordered breathing. The spectrum from obstructive sleep apnea (OSA) to central sleep apnea (CSA) includes mixed sleep apnea, treatment-emergent CSA (TECSA), and Cheyne-Stokes respiration (CSR).¹ The pathophysiologic causes of CSA can be attributed to delayed cardiopulmonary circulation in heart failure, decreased brainstem ventilatory response due to stroke, blunting of central chemoreceptors in chronic opioid use, and/or stimulation of the Hering-Breuer reflex from activation of pulmonary stretch receptors after initiating positive airway pressure (PAP) for treatment of OSA.^2,3 Medications are commonly implicated in many forms of sleep-disordered breathing; importantly, opioids and benzodiazepines may blunt the respiratory drive, leading to CSA, and/or impair upper airway patency, resulting in or worsening OSA.

Continuous positive airway pressure (CPAP) therapy is largely ineffective in correcting CSA or improving outcomes and is often poorly tolerated in these patients.⁴ Adaptive servo-ventilation (ASV) is a form of bilevel PAP (BPAP) therapy that delivers variable adjusting pressure support, primarily to treat CSA. PAP also may relieve upper airway obstructions, thereby effectively treating any comorbid obstructive component. ASV has been well documented to improve sleep-related disorders and improve apnea-hypopnea index (AHI) in patients with CSA. However, longitudinal data have demonstrated increased mortality in patients with heart failure with reduced ejection fraction (HFrEF) who were treated with ASV.⁵ Since the SERVE-HF trial results came to light in 2015, there has been no consensus regarding the optimal use, if any, of ASV therapy.^6-8 This is partly related to the inability to fully explain the study’s major findings, which were unexpected at the time, and partly due to the absence of similar relevant mortality data in patients with CSA but without HFrEF.

TECSA may present in some patients with OSA who are new to PAP therapy. These events are frequently seen during PAP titration sleep studies, though patients can also experience significant TECSA shortly after initiating home PAP therapy. TECSA is felt to result from a combination of stimulating pulmonary stretch receptors and lowering arterial carbon dioxide below the apneic threshold. Chemoreceptors located in the medulla respond by attenuating the respiratory drive.⁹ Previous studies have shown most cases of mild TECSA resolve over time with CPAP treatment. However, in patients with persistent or worsening TECSA, ASV may be considered as an alternative to CPAP.

The prevalence of OSA in the veteran population is estimated to be as high as 60%, considerably higher than the general population estimation.¹⁰ Patients with more significant comorbidities may also experience a higher frequency of central events. Patients with CSA have also been shown to have a higher risk for cardiac-related hospital admissions, providing plausible justification for correcting CSA.¹⁰

In the current study, we aim to characterize the group of patients using ASV therapy in the modern era. We will assess the objective efficacy and adherence of ASV therapy in patients with primarily CSA compared with those having primarily OSA (ie, TECSA). Secondarily, we aim to identify baseline clinical and polysomnographic features that may be predictive of ASV adherence, as a surrogate for subjective benefit.¹¹ In the wake of the SERVE-HF study, the sleep medicine community has paused prescribing ASV therapy for CSA. We hope to provide more perspective on the treatment of veterans with CSA and identify the patient groups that would benefit most from ASV therapy.

Methods

This retrospective chart review examined patients prescribed ASV therapy at the Hampton Veterans Affairs Medical Center (HVAMC) in Virginia who had therapy data between January 1, 2015, and April 30, 2020. The start date was chosen to approximate the phase-in of wireless PAP devices at HVAMC and to correspond with the release of preliminary results from the SERVE-HF trial.

Patients were initially identified through a query into commercial wireless PAP management databases and cross-referenced with HVAMC patients. Adherence and efficacy data were obtained from the most recent clinical PAP data, which allowed for the evaluation of patients who discontinued therapy for reasons other than intolerance. Clinical, demographic, and polysomnography (PSG) data were obtained from the electronic health record. One patient, identified through the database query but not found in the electronic health record, was excluded. In cases of missing PSG data, especially AHI or similar values, all attempts were made to calculate the data with other provided values. This study was determined to be exempt by the HVAMC Institutional Review Board (protocol #20-01).

Statistics

Statistical analyses were designed to compare clinical characteristics and adherence to therapy of those with primarily CSA on PSG and those with primarily OSA. Because it was not currently known how many patients would fit into each of these categories, we also planned secondary comparisons of the clinical and PSG characteristics of those patients who were adherent with therapy and those who were not. Adherence with ASV therapy was defined as device use for ≥ 4 hours for ≥ 70% of nights.

Comparisons between the means of 2 normally distributed groups were performed with an unpaired t test. Comparisons between 2 nonnormally distributed groups and groups of dates were done with the Mann-Whitney U test. The normality of a group distribution was determined using D’Agostino-Pearson omnibus normality test. Two groups of dichotomous variables were compared with the Fisher exact test. P value < .05 was considered statistically significant.

Results

Thirty-one patients were prescribed ASV therapy and had follow-up at HVAMC since 2015. All patients were male. The mean (SD) age was 67.2 (11.4) years, mean body mass index (BMI) was 34.0 (5.9), and the mean (SD) Epworth Sleepiness Scale (ESS) score was 10.9 (5.8). Patient comorbidities included 30 (97%) with hypertension, 17 (55%) with diabetes mellitus, 16 (52%) with coronary artery disease, and 11 (35%) with congestive heart failure. Three patients had no echocardiogram or other documentation of left ventricular ejection fraction (LVEF). One of these patients had voluntarily stopped using PAP therapy, another had been erroneously started on ASV (ordered for fixed BPAP), and the third had since been retitrated to CPAP. In the 28 patients with documented LVEF, the mean (SD) LVEF was 61.8% (6.9). Ten patients (32%) had opioids documented on their medication lists and 6 (19%) had benzodiazepines.

The median date of diagnostic sleep testing was January 9, 2015, and testing was completed after the release of the initial field safety notice regarding the SERVE-HF trial preliminary findings May 13, 2015, for 14 patients (45%).¹² On diagnostic sleep testing, the mean (SD) AHI was 47.3 (25.6) events/h and the median (IQR) oxygen saturation (SpO₂) nadir was 82% (78-84). Three patients (10%) were initially diagnosed with CSA, 19 (61%) with OSA, and 9 (29%) with both. Sixteen patients (52%) had ASV with fixed expiratory PAP (EPAP), and 15 (48%) had variable adjusting EPAP. Mean (SD) usage of ASV was 6.5 (2.6) hours and 66.0% (34.2) of nights for ≥ 4 hours. Mean (SD) titrated EPAP (set or 90th/95th percentile autotitrated) was 10.1 (3.4) cm H₂O and inspiratory PAP (IPAP) (90th/95th percentile) was 17.1 (3.3) cm H₂O. The median (IQR) residual AHI on ASV was 2.7 events/h (1.1-5.1), apnea index (AI) was 0.4 (0.1-1.0), and hypopnea index (HI) was 1.4 (1.0-3.2); the residual central and obstructive events were not available in most cases.

Adherence

There were no significant differences between the proportions of patients on ASV with set EPAP or the titrated EPAP and IPAP. The median (IQR) residual AHI was lower in the adherent group compared with the nonadherent group, both in absolute values (1.7 [0.9-3.2] events/h vs 4.7 [2.4-10.3] events/h, respectively [P = .004]), and as a percentage of the pretreatment AHI (3.1% [2.5-6.0] vs 10.2% [5.3-34.4], respectively; P = .002) (Figure 2).

Primarily Obstructive Sleep Apnea

Sleep apnea was a mixed picture of obstructive and central events in many patients. Only 3 patients had “pure” CSA. Thus, we were unable to define discrete comparison groups based on the sleep-disordered breathing phenotype. We identified 19 patients with primarily OSA (ie, initially diagnosed with OSA, OSA with TECSA, or complex sleep apnea). The mean (SD) age was 66.1 (12.8) years, BMI was 36.2 (4.7), and ESS was 11.4 (5.6). The mean (SD) baseline AHI was 46.9 (29.5), obstructive AHI was 40.5 (30.4), and central AHI was 0.4 (1.2); the median (IQR) SpO₂ nadir was 81% (78%-84%). The mean (SD) titrated EPAP was 10.2 (3.5) cm H₂O, and the 90th/95th percentile IPAP was 17.9 (3.5) cm H₂O. The mean (SD) usage of ASV was 7.9 (5.3) hours with 11 patients (58%) meeting the minimum standard for adherence to ASV therapy.

No significant differences were seen between the adherent and nonadherent groups in clinical or demographic characteristics or date of diagnostic sleep testing (eAppendix, available online at doi:10.12788/fp.0374). In baseline sleep studies the mean (SD) HI was 32.3 (15.8) in the adherent group compared with 14.7 (8.8) in the nonadherent group (P = .049). In contrast, obstructive AHI was not significantly lower in the adherent group: 51.9 (30.9) in the adherent group compared with 22.2 (20.6) in the nonadherent group (P = .09). The median (IQR) residual AHI on ASV as a percentage of the pretreatment AHI was 3.0% (2.4%-6.5%) in the adherent group compared with 11.3% (5.4%-89.1%) in the nonadherent group, a statistically significant difference (P = .01). No other significant differences were seen between the groups.

Discussion

This study describes a real-world cohort of patients using ASV therapy and the characteristics associated with benefit from therapy. The patients that were prescribed and started ASV therapy most often had a significant degree of obstructive component to sleep-disordered breathing, whether primary OSA with TECSA or comorbid OSA and CSA. Moreover, we found that a higher obstructive AHI on the baseline PSG was associated with adherence to ASV therapy. Another important finding was that a lower residual AHI on ASV as a proportion of the baseline was associated with PAP adherence. Adherent patients had similar clinical characteristics as the nonadherent patients, including comorbidities, severity of sleep-disordered breathing, and obesity.

Though the results of the SERVE-HF trial have dampened the enthusiasm somewhat, ASV therapy has long been considered an effective and well-tolerated treatment for many types of CSA.¹³ In fact, treatments that can eliminate the central AHI are fairly limited.^4,14 Our data suggest that ASV is also effective and tolerated in OSA with TECSA and/or comorbid CSA. Recent studies suggest that CSA resolves spontaneously in a majority of TECSA patients within 2 to 3 months of regular CPAP use.¹⁵ Other estimates suggest that persistent TESCA may be present in 2% of patients with OSA on treatment.¹⁶

Given the high and rising prevalence of OSA, many people are at risk for clinically significant TESCA. Another retrospective case series found that 72% of patients that failed treatment with CPAP or BPAP during PSG, met diagnostic criteria (at the time) for CSA; ASV was objectively beneficial in these patients.¹⁷ ASV can be an especially useful modality to treat OSA in patients with CSA that either prevents tolerance of standard therapies or causes clinical consequences, presuming the patient does not also have HFrEF.¹⁸ The long-term outcomes of treatment with ASV therapy remain a matter of debate.

The SERVE-HF trial remains among the only studies that have assessed the mortality effects of CSA treatments, with unfavorable findings. Treatment of OSA has been associated with favorable chronic health benefits, though recent studies have questioned the degree of benefit attributable to OSA treatment.^19-24 Similar studies have not been done for comorbidities represented by our study cohort (ie, OSA with TECSA and/or comorbid CSA).

The lack of CSA diagnosis alone in our cohort may be partially attributable to changing practice patterns following the SERVE-HF trial, though it is not clear from these data why a higher baseline obstructive AHI was associated with adherence to ASV therapy. Our data in this regard are somewhat at odds with the preliminary results of the ADVENT-HF trial. In that study, adherence to ASV therapy in patients with predominantly OSA declined significantly more than in patients with predominantly CSA.²⁵ Most of our patients were diagnosed with predominantly OSA, so a direct comparison with the CSA group is problematic; additionally, the primary brand and the pressure adjustments algorithm used in our study differed from the ADVENT-HF trial.

OSA and CSA may present with similar clinical symptoms, including sleep fragmentation, insomnia, and excessive daytime sleepiness; however, the degree of symptomatology, especially daytime sleepiness, and the response to treatment, may be less in CSA.^2,26 Both the subjective report of symptoms (ESS) and PSG measures of sleep fragmentation were similar in our patients, again likely explained by the predominance of obstructive events.

The pathophysiology of CSA is more varied than OSA, which is probably relevant in this case. ASV was originally designed for the management of CSA with CSR, accomplishing this goal by stabilizing the periods of central apnea and hyperpnea characteristic of CSR.²⁷ Although other forms of CSA demonstrate breathing patterns distinct from CSR, ASV has become an accepted treatment for most of these. It is plausible that the long-term subjective benefit and tolerance of ASV in CSA without CSR is less than for CSA with CSR or OSA. None of the patients in our study had CSA with CSR.

Ultimately, it may be the objective treatment effect that lends to adherence, as has been shown previously in OSA patients; our group of adherent patients showed a greater improvement in AHI, relative to baseline, than the nonadherent patients did.²⁸ The technology behind ASV therapy can greatly reduce the frequencies of central apneas, yet this same treatment effectively splints the upper airway and even more effectively eliminates obstructive apneas and hypopneas. Variable adjusting EPAP devices would plausibly provide even more benefit in these patients, as has been shown in prior studies.²⁹ To the contrary, our small sample of patients with TESCA showed a nonsignificant trend toward adherence with fixed EPAP ASV.

Opioid use was substantial in our population, without significant differences between the groups. CPAP therapy is ineffective in improving opioid-associated CSA. In a recent study, 20 patients on opioid therapy with CSA were treated with CPAP therapy; after several weeks, the average therapeutic use was 4 to 5 hours per night and CPAP was abandoned in favor of ASV therapy due to persistent central apnea. ASV treatment was associated with a considerable reduction in central apnea index, AHI, arousal index, and oxygen desaturations in a remarkable improvement over CPAP.³⁰

Limitations and Future Directions

This retrospective, single-center study may have limited applicability to other populations. Adherence was used as a surrogate for subjective benefit from treatment, though benefit was not confirmed by the patients directly. Only patients seen in follow-up for documentation of the ASV download were identified for inclusion and data analysis. As a single center, we risk homogeneity in the treatment algorithms, though sleep medicine treatments are often decided at the time of the sleep studies. Studies and treatment recommendations were made at a variety of sites, including our sleep center, other US Department of Veterans Affairs hospitals, in the community network, and at US Department of Defense centers. Our population was homogenous in some ways; notably, 100% of our group was male, which is substantially higher than both the veteran population and the general population. Risk factors for OSA and CSA are more common in male patients, which may partially explain this anomaly. Lastly, with our small sample size, there is increased risk that the results seen occurred by chance.

There are several areas for further study. A larger multicenter study may permit these results to be generalized to the population and should include subjective measures of benefit. Patients with primarily CSA were largely absent in our group and may be the focus of future studies; data on predictors of treatment adherence in CSA are lacking. With the availability of consistent older adherence data, comparisons may be made between the efficacies of clinical practice habits, including treatment efficacy, before and after the results of the SERVE-HF trial became known.

Conclusions

In selected patients with preserved LVEF, ASV therapy appears especially effective in patients with OSA combined with CSA. Adherence to ASV treatment was associated with higher obstructive AHI during the baseline PSG and with a greater reduction in the AHI. This understanding may help guide sleep specialists in personalizing treatments for sleep-disordered breathing. Because objective efficacy appears to be important for therapy adherence, clinicians should be able to consistently determine the obstructive and central components of the residual AHI, thus taking all information into account when optimizing the treatment. Additionally, both OSA and CSA pressure requirements should be considered when developing ASV devices.

Acknowledgments

We thank Martha Harper, RRT, of Hampton Veterans Affairs Medical Center (HVAMC) for helping to identify our patients and assisting with data collection. This material is the result of work supported with resources and the use of HVAMC facilities.

Sleep apnea is a heterogeneous group of conditions that may be attributable to a wide array of underlying conditions, with varying contributions of obstructive or central sleep-disordered breathing. The spectrum from obstructive sleep apnea (OSA) to central sleep apnea (CSA) includes mixed sleep apnea, treatment-emergent CSA (TECSA), and Cheyne-Stokes respiration (CSR).¹ The pathophysiologic causes of CSA can be attributed to delayed cardiopulmonary circulation in heart failure, decreased brainstem ventilatory response due to stroke, blunting of central chemoreceptors in chronic opioid use, and/or stimulation of the Hering-Breuer reflex from activation of pulmonary stretch receptors after initiating positive airway pressure (PAP) for treatment of OSA.^2,3 Medications are commonly implicated in many forms of sleep-disordered breathing; importantly, opioids and benzodiazepines may blunt the respiratory drive, leading to CSA, and/or impair upper airway patency, resulting in or worsening OSA.

Continuous positive airway pressure (CPAP) therapy is largely ineffective in correcting CSA or improving outcomes and is often poorly tolerated in these patients.⁴ Adaptive servo-ventilation (ASV) is a form of bilevel PAP (BPAP) therapy that delivers variable adjusting pressure support, primarily to treat CSA. PAP also may relieve upper airway obstructions, thereby effectively treating any comorbid obstructive component. ASV has been well documented to improve sleep-related disorders and improve apnea-hypopnea index (AHI) in patients with CSA. However, longitudinal data have demonstrated increased mortality in patients with heart failure with reduced ejection fraction (HFrEF) who were treated with ASV.⁵ Since the SERVE-HF trial results came to light in 2015, there has been no consensus regarding the optimal use, if any, of ASV therapy.^6-8 This is partly related to the inability to fully explain the study’s major findings, which were unexpected at the time, and partly due to the absence of similar relevant mortality data in patients with CSA but without HFrEF.

TECSA may present in some patients with OSA who are new to PAP therapy. These events are frequently seen during PAP titration sleep studies, though patients can also experience significant TECSA shortly after initiating home PAP therapy. TECSA is felt to result from a combination of stimulating pulmonary stretch receptors and lowering arterial carbon dioxide below the apneic threshold. Chemoreceptors located in the medulla respond by attenuating the respiratory drive.⁹ Previous studies have shown most cases of mild TECSA resolve over time with CPAP treatment. However, in patients with persistent or worsening TECSA, ASV may be considered as an alternative to CPAP.

The prevalence of OSA in the veteran population is estimated to be as high as 60%, considerably higher than the general population estimation.¹⁰ Patients with more significant comorbidities may also experience a higher frequency of central events. Patients with CSA have also been shown to have a higher risk for cardiac-related hospital admissions, providing plausible justification for correcting CSA.¹⁰

In the current study, we aim to characterize the group of patients using ASV therapy in the modern era. We will assess the objective efficacy and adherence of ASV therapy in patients with primarily CSA compared with those having primarily OSA (ie, TECSA). Secondarily, we aim to identify baseline clinical and polysomnographic features that may be predictive of ASV adherence, as a surrogate for subjective benefit.¹¹ In the wake of the SERVE-HF study, the sleep medicine community has paused prescribing ASV therapy for CSA. We hope to provide more perspective on the treatment of veterans with CSA and identify the patient groups that would benefit most from ASV therapy.

Methods

This retrospective chart review examined patients prescribed ASV therapy at the Hampton Veterans Affairs Medical Center (HVAMC) in Virginia who had therapy data between January 1, 2015, and April 30, 2020. The start date was chosen to approximate the phase-in of wireless PAP devices at HVAMC and to correspond with the release of preliminary results from the SERVE-HF trial.

Patients were initially identified through a query into commercial wireless PAP management databases and cross-referenced with HVAMC patients. Adherence and efficacy data were obtained from the most recent clinical PAP data, which allowed for the evaluation of patients who discontinued therapy for reasons other than intolerance. Clinical, demographic, and polysomnography (PSG) data were obtained from the electronic health record. One patient, identified through the database query but not found in the electronic health record, was excluded. In cases of missing PSG data, especially AHI or similar values, all attempts were made to calculate the data with other provided values. This study was determined to be exempt by the HVAMC Institutional Review Board (protocol #20-01).

Statistics

Statistical analyses were designed to compare clinical characteristics and adherence to therapy of those with primarily CSA on PSG and those with primarily OSA. Because it was not currently known how many patients would fit into each of these categories, we also planned secondary comparisons of the clinical and PSG characteristics of those patients who were adherent with therapy and those who were not. Adherence with ASV therapy was defined as device use for ≥ 4 hours for ≥ 70% of nights.

Comparisons between the means of 2 normally distributed groups were performed with an unpaired t test. Comparisons between 2 nonnormally distributed groups and groups of dates were done with the Mann-Whitney U test. The normality of a group distribution was determined using D’Agostino-Pearson omnibus normality test. Two groups of dichotomous variables were compared with the Fisher exact test. P value < .05 was considered statistically significant.

Results

Thirty-one patients were prescribed ASV therapy and had follow-up at HVAMC since 2015. All patients were male. The mean (SD) age was 67.2 (11.4) years, mean body mass index (BMI) was 34.0 (5.9), and the mean (SD) Epworth Sleepiness Scale (ESS) score was 10.9 (5.8). Patient comorbidities included 30 (97%) with hypertension, 17 (55%) with diabetes mellitus, 16 (52%) with coronary artery disease, and 11 (35%) with congestive heart failure. Three patients had no echocardiogram or other documentation of left ventricular ejection fraction (LVEF). One of these patients had voluntarily stopped using PAP therapy, another had been erroneously started on ASV (ordered for fixed BPAP), and the third had since been retitrated to CPAP. In the 28 patients with documented LVEF, the mean (SD) LVEF was 61.8% (6.9). Ten patients (32%) had opioids documented on their medication lists and 6 (19%) had benzodiazepines.

The median date of diagnostic sleep testing was January 9, 2015, and testing was completed after the release of the initial field safety notice regarding the SERVE-HF trial preliminary findings May 13, 2015, for 14 patients (45%).¹² On diagnostic sleep testing, the mean (SD) AHI was 47.3 (25.6) events/h and the median (IQR) oxygen saturation (SpO₂) nadir was 82% (78-84). Three patients (10%) were initially diagnosed with CSA, 19 (61%) with OSA, and 9 (29%) with both. Sixteen patients (52%) had ASV with fixed expiratory PAP (EPAP), and 15 (48%) had variable adjusting EPAP. Mean (SD) usage of ASV was 6.5 (2.6) hours and 66.0% (34.2) of nights for ≥ 4 hours. Mean (SD) titrated EPAP (set or 90th/95th percentile autotitrated) was 10.1 (3.4) cm H₂O and inspiratory PAP (IPAP) (90th/95th percentile) was 17.1 (3.3) cm H₂O. The median (IQR) residual AHI on ASV was 2.7 events/h (1.1-5.1), apnea index (AI) was 0.4 (0.1-1.0), and hypopnea index (HI) was 1.4 (1.0-3.2); the residual central and obstructive events were not available in most cases.

Adherence

There were no significant differences between the proportions of patients on ASV with set EPAP or the titrated EPAP and IPAP. The median (IQR) residual AHI was lower in the adherent group compared with the nonadherent group, both in absolute values (1.7 [0.9-3.2] events/h vs 4.7 [2.4-10.3] events/h, respectively [P = .004]), and as a percentage of the pretreatment AHI (3.1% [2.5-6.0] vs 10.2% [5.3-34.4], respectively; P = .002) (Figure 2).

Primarily Obstructive Sleep Apnea

Sleep apnea was a mixed picture of obstructive and central events in many patients. Only 3 patients had “pure” CSA. Thus, we were unable to define discrete comparison groups based on the sleep-disordered breathing phenotype. We identified 19 patients with primarily OSA (ie, initially diagnosed with OSA, OSA with TECSA, or complex sleep apnea). The mean (SD) age was 66.1 (12.8) years, BMI was 36.2 (4.7), and ESS was 11.4 (5.6). The mean (SD) baseline AHI was 46.9 (29.5), obstructive AHI was 40.5 (30.4), and central AHI was 0.4 (1.2); the median (IQR) SpO₂ nadir was 81% (78%-84%). The mean (SD) titrated EPAP was 10.2 (3.5) cm H₂O, and the 90th/95th percentile IPAP was 17.9 (3.5) cm H₂O. The mean (SD) usage of ASV was 7.9 (5.3) hours with 11 patients (58%) meeting the minimum standard for adherence to ASV therapy.

No significant differences were seen between the adherent and nonadherent groups in clinical or demographic characteristics or date of diagnostic sleep testing (eAppendix, available online at doi:10.12788/fp.0374). In baseline sleep studies the mean (SD) HI was 32.3 (15.8) in the adherent group compared with 14.7 (8.8) in the nonadherent group (P = .049). In contrast, obstructive AHI was not significantly lower in the adherent group: 51.9 (30.9) in the adherent group compared with 22.2 (20.6) in the nonadherent group (P = .09). The median (IQR) residual AHI on ASV as a percentage of the pretreatment AHI was 3.0% (2.4%-6.5%) in the adherent group compared with 11.3% (5.4%-89.1%) in the nonadherent group, a statistically significant difference (P = .01). No other significant differences were seen between the groups.

Discussion

This study describes a real-world cohort of patients using ASV therapy and the characteristics associated with benefit from therapy. The patients that were prescribed and started ASV therapy most often had a significant degree of obstructive component to sleep-disordered breathing, whether primary OSA with TECSA or comorbid OSA and CSA. Moreover, we found that a higher obstructive AHI on the baseline PSG was associated with adherence to ASV therapy. Another important finding was that a lower residual AHI on ASV as a proportion of the baseline was associated with PAP adherence. Adherent patients had similar clinical characteristics as the nonadherent patients, including comorbidities, severity of sleep-disordered breathing, and obesity.

Though the results of the SERVE-HF trial have dampened the enthusiasm somewhat, ASV therapy has long been considered an effective and well-tolerated treatment for many types of CSA.¹³ In fact, treatments that can eliminate the central AHI are fairly limited.^4,14 Our data suggest that ASV is also effective and tolerated in OSA with TECSA and/or comorbid CSA. Recent studies suggest that CSA resolves spontaneously in a majority of TECSA patients within 2 to 3 months of regular CPAP use.¹⁵ Other estimates suggest that persistent TESCA may be present in 2% of patients with OSA on treatment.¹⁶

Given the high and rising prevalence of OSA, many people are at risk for clinically significant TESCA. Another retrospective case series found that 72% of patients that failed treatment with CPAP or BPAP during PSG, met diagnostic criteria (at the time) for CSA; ASV was objectively beneficial in these patients.¹⁷ ASV can be an especially useful modality to treat OSA in patients with CSA that either prevents tolerance of standard therapies or causes clinical consequences, presuming the patient does not also have HFrEF.¹⁸ The long-term outcomes of treatment with ASV therapy remain a matter of debate.

The SERVE-HF trial remains among the only studies that have assessed the mortality effects of CSA treatments, with unfavorable findings. Treatment of OSA has been associated with favorable chronic health benefits, though recent studies have questioned the degree of benefit attributable to OSA treatment.^19-24 Similar studies have not been done for comorbidities represented by our study cohort (ie, OSA with TECSA and/or comorbid CSA).

The lack of CSA diagnosis alone in our cohort may be partially attributable to changing practice patterns following the SERVE-HF trial, though it is not clear from these data why a higher baseline obstructive AHI was associated with adherence to ASV therapy. Our data in this regard are somewhat at odds with the preliminary results of the ADVENT-HF trial. In that study, adherence to ASV therapy in patients with predominantly OSA declined significantly more than in patients with predominantly CSA.²⁵ Most of our patients were diagnosed with predominantly OSA, so a direct comparison with the CSA group is problematic; additionally, the primary brand and the pressure adjustments algorithm used in our study differed from the ADVENT-HF trial.

OSA and CSA may present with similar clinical symptoms, including sleep fragmentation, insomnia, and excessive daytime sleepiness; however, the degree of symptomatology, especially daytime sleepiness, and the response to treatment, may be less in CSA.^2,26 Both the subjective report of symptoms (ESS) and PSG measures of sleep fragmentation were similar in our patients, again likely explained by the predominance of obstructive events.

The pathophysiology of CSA is more varied than OSA, which is probably relevant in this case. ASV was originally designed for the management of CSA with CSR, accomplishing this goal by stabilizing the periods of central apnea and hyperpnea characteristic of CSR.²⁷ Although other forms of CSA demonstrate breathing patterns distinct from CSR, ASV has become an accepted treatment for most of these. It is plausible that the long-term subjective benefit and tolerance of ASV in CSA without CSR is less than for CSA with CSR or OSA. None of the patients in our study had CSA with CSR.

Ultimately, it may be the objective treatment effect that lends to adherence, as has been shown previously in OSA patients; our group of adherent patients showed a greater improvement in AHI, relative to baseline, than the nonadherent patients did.²⁸ The technology behind ASV therapy can greatly reduce the frequencies of central apneas, yet this same treatment effectively splints the upper airway and even more effectively eliminates obstructive apneas and hypopneas. Variable adjusting EPAP devices would plausibly provide even more benefit in these patients, as has been shown in prior studies.²⁹ To the contrary, our small sample of patients with TESCA showed a nonsignificant trend toward adherence with fixed EPAP ASV.

Opioid use was substantial in our population, without significant differences between the groups. CPAP therapy is ineffective in improving opioid-associated CSA. In a recent study, 20 patients on opioid therapy with CSA were treated with CPAP therapy; after several weeks, the average therapeutic use was 4 to 5 hours per night and CPAP was abandoned in favor of ASV therapy due to persistent central apnea. ASV treatment was associated with a considerable reduction in central apnea index, AHI, arousal index, and oxygen desaturations in a remarkable improvement over CPAP.³⁰

Limitations and Future Directions

This retrospective, single-center study may have limited applicability to other populations. Adherence was used as a surrogate for subjective benefit from treatment, though benefit was not confirmed by the patients directly. Only patients seen in follow-up for documentation of the ASV download were identified for inclusion and data analysis. As a single center, we risk homogeneity in the treatment algorithms, though sleep medicine treatments are often decided at the time of the sleep studies. Studies and treatment recommendations were made at a variety of sites, including our sleep center, other US Department of Veterans Affairs hospitals, in the community network, and at US Department of Defense centers. Our population was homogenous in some ways; notably, 100% of our group was male, which is substantially higher than both the veteran population and the general population. Risk factors for OSA and CSA are more common in male patients, which may partially explain this anomaly. Lastly, with our small sample size, there is increased risk that the results seen occurred by chance.

There are several areas for further study. A larger multicenter study may permit these results to be generalized to the population and should include subjective measures of benefit. Patients with primarily CSA were largely absent in our group and may be the focus of future studies; data on predictors of treatment adherence in CSA are lacking. With the availability of consistent older adherence data, comparisons may be made between the efficacies of clinical practice habits, including treatment efficacy, before and after the results of the SERVE-HF trial became known.

Conclusions

In selected patients with preserved LVEF, ASV therapy appears especially effective in patients with OSA combined with CSA. Adherence to ASV treatment was associated with higher obstructive AHI during the baseline PSG and with a greater reduction in the AHI. This understanding may help guide sleep specialists in personalizing treatments for sleep-disordered breathing. Because objective efficacy appears to be important for therapy adherence, clinicians should be able to consistently determine the obstructive and central components of the residual AHI, thus taking all information into account when optimizing the treatment. Additionally, both OSA and CSA pressure requirements should be considered when developing ASV devices.

Acknowledgments

We thank Martha Harper, RRT, of Hampton Veterans Affairs Medical Center (HVAMC) for helping to identify our patients and assisting with data collection. This material is the result of work supported with resources and the use of HVAMC facilities.

Sleep apnea is a heterogeneous group of conditions that may be attributable to a wide array of underlying conditions, with varying contributions of obstructive or central sleep-disordered breathing. The spectrum from obstructive sleep apnea (OSA) to central sleep apnea (CSA) includes mixed sleep apnea, treatment-emergent CSA (TECSA), and Cheyne-Stokes respiration (CSR).¹ The pathophysiologic causes of CSA can be attributed to delayed cardiopulmonary circulation in heart failure, decreased brainstem ventilatory response due to stroke, blunting of central chemoreceptors in chronic opioid use, and/or stimulation of the Hering-Breuer reflex from activation of pulmonary stretch receptors after initiating positive airway pressure (PAP) for treatment of OSA.^2,3 Medications are commonly implicated in many forms of sleep-disordered breathing; importantly, opioids and benzodiazepines may blunt the respiratory drive, leading to CSA, and/or impair upper airway patency, resulting in or worsening OSA.

Continuous positive airway pressure (CPAP) therapy is largely ineffective in correcting CSA or improving outcomes and is often poorly tolerated in these patients.⁴ Adaptive servo-ventilation (ASV) is a form of bilevel PAP (BPAP) therapy that delivers variable adjusting pressure support, primarily to treat CSA. PAP also may relieve upper airway obstructions, thereby effectively treating any comorbid obstructive component. ASV has been well documented to improve sleep-related disorders and improve apnea-hypopnea index (AHI) in patients with CSA. However, longitudinal data have demonstrated increased mortality in patients with heart failure with reduced ejection fraction (HFrEF) who were treated with ASV.⁵ Since the SERVE-HF trial results came to light in 2015, there has been no consensus regarding the optimal use, if any, of ASV therapy.^6-8 This is partly related to the inability to fully explain the study’s major findings, which were unexpected at the time, and partly due to the absence of similar relevant mortality data in patients with CSA but without HFrEF.

TECSA may present in some patients with OSA who are new to PAP therapy. These events are frequently seen during PAP titration sleep studies, though patients can also experience significant TECSA shortly after initiating home PAP therapy. TECSA is felt to result from a combination of stimulating pulmonary stretch receptors and lowering arterial carbon dioxide below the apneic threshold. Chemoreceptors located in the medulla respond by attenuating the respiratory drive.⁹ Previous studies have shown most cases of mild TECSA resolve over time with CPAP treatment. However, in patients with persistent or worsening TECSA, ASV may be considered as an alternative to CPAP.

The prevalence of OSA in the veteran population is estimated to be as high as 60%, considerably higher than the general population estimation.¹⁰ Patients with more significant comorbidities may also experience a higher frequency of central events. Patients with CSA have also been shown to have a higher risk for cardiac-related hospital admissions, providing plausible justification for correcting CSA.¹⁰

In the current study, we aim to characterize the group of patients using ASV therapy in the modern era. We will assess the objective efficacy and adherence of ASV therapy in patients with primarily CSA compared with those having primarily OSA (ie, TECSA). Secondarily, we aim to identify baseline clinical and polysomnographic features that may be predictive of ASV adherence, as a surrogate for subjective benefit.¹¹ In the wake of the SERVE-HF study, the sleep medicine community has paused prescribing ASV therapy for CSA. We hope to provide more perspective on the treatment of veterans with CSA and identify the patient groups that would benefit most from ASV therapy.

Methods

This retrospective chart review examined patients prescribed ASV therapy at the Hampton Veterans Affairs Medical Center (HVAMC) in Virginia who had therapy data between January 1, 2015, and April 30, 2020. The start date was chosen to approximate the phase-in of wireless PAP devices at HVAMC and to correspond with the release of preliminary results from the SERVE-HF trial.

Patients were initially identified through a query into commercial wireless PAP management databases and cross-referenced with HVAMC patients. Adherence and efficacy data were obtained from the most recent clinical PAP data, which allowed for the evaluation of patients who discontinued therapy for reasons other than intolerance. Clinical, demographic, and polysomnography (PSG) data were obtained from the electronic health record. One patient, identified through the database query but not found in the electronic health record, was excluded. In cases of missing PSG data, especially AHI or similar values, all attempts were made to calculate the data with other provided values. This study was determined to be exempt by the HVAMC Institutional Review Board (protocol #20-01).

Statistics

Statistical analyses were designed to compare clinical characteristics and adherence to therapy of those with primarily CSA on PSG and those with primarily OSA. Because it was not currently known how many patients would fit into each of these categories, we also planned secondary comparisons of the clinical and PSG characteristics of those patients who were adherent with therapy and those who were not. Adherence with ASV therapy was defined as device use for ≥ 4 hours for ≥ 70% of nights.

Comparisons between the means of 2 normally distributed groups were performed with an unpaired t test. Comparisons between 2 nonnormally distributed groups and groups of dates were done with the Mann-Whitney U test. The normality of a group distribution was determined using D’Agostino-Pearson omnibus normality test. Two groups of dichotomous variables were compared with the Fisher exact test. P value < .05 was considered statistically significant.

Results

Thirty-one patients were prescribed ASV therapy and had follow-up at HVAMC since 2015. All patients were male. The mean (SD) age was 67.2 (11.4) years, mean body mass index (BMI) was 34.0 (5.9), and the mean (SD) Epworth Sleepiness Scale (ESS) score was 10.9 (5.8). Patient comorbidities included 30 (97%) with hypertension, 17 (55%) with diabetes mellitus, 16 (52%) with coronary artery disease, and 11 (35%) with congestive heart failure. Three patients had no echocardiogram or other documentation of left ventricular ejection fraction (LVEF). One of these patients had voluntarily stopped using PAP therapy, another had been erroneously started on ASV (ordered for fixed BPAP), and the third had since been retitrated to CPAP. In the 28 patients with documented LVEF, the mean (SD) LVEF was 61.8% (6.9). Ten patients (32%) had opioids documented on their medication lists and 6 (19%) had benzodiazepines.

The median date of diagnostic sleep testing was January 9, 2015, and testing was completed after the release of the initial field safety notice regarding the SERVE-HF trial preliminary findings May 13, 2015, for 14 patients (45%).¹² On diagnostic sleep testing, the mean (SD) AHI was 47.3 (25.6) events/h and the median (IQR) oxygen saturation (SpO₂) nadir was 82% (78-84). Three patients (10%) were initially diagnosed with CSA, 19 (61%) with OSA, and 9 (29%) with both. Sixteen patients (52%) had ASV with fixed expiratory PAP (EPAP), and 15 (48%) had variable adjusting EPAP. Mean (SD) usage of ASV was 6.5 (2.6) hours and 66.0% (34.2) of nights for ≥ 4 hours. Mean (SD) titrated EPAP (set or 90th/95th percentile autotitrated) was 10.1 (3.4) cm H₂O and inspiratory PAP (IPAP) (90th/95th percentile) was 17.1 (3.3) cm H₂O. The median (IQR) residual AHI on ASV was 2.7 events/h (1.1-5.1), apnea index (AI) was 0.4 (0.1-1.0), and hypopnea index (HI) was 1.4 (1.0-3.2); the residual central and obstructive events were not available in most cases.

Adherence

There were no significant differences between the proportions of patients on ASV with set EPAP or the titrated EPAP and IPAP. The median (IQR) residual AHI was lower in the adherent group compared with the nonadherent group, both in absolute values (1.7 [0.9-3.2] events/h vs 4.7 [2.4-10.3] events/h, respectively [P = .004]), and as a percentage of the pretreatment AHI (3.1% [2.5-6.0] vs 10.2% [5.3-34.4], respectively; P = .002) (Figure 2).

Primarily Obstructive Sleep Apnea

Sleep apnea was a mixed picture of obstructive and central events in many patients. Only 3 patients had “pure” CSA. Thus, we were unable to define discrete comparison groups based on the sleep-disordered breathing phenotype. We identified 19 patients with primarily OSA (ie, initially diagnosed with OSA, OSA with TECSA, or complex sleep apnea). The mean (SD) age was 66.1 (12.8) years, BMI was 36.2 (4.7), and ESS was 11.4 (5.6). The mean (SD) baseline AHI was 46.9 (29.5), obstructive AHI was 40.5 (30.4), and central AHI was 0.4 (1.2); the median (IQR) SpO₂ nadir was 81% (78%-84%). The mean (SD) titrated EPAP was 10.2 (3.5) cm H₂O, and the 90th/95th percentile IPAP was 17.9 (3.5) cm H₂O. The mean (SD) usage of ASV was 7.9 (5.3) hours with 11 patients (58%) meeting the minimum standard for adherence to ASV therapy.

No significant differences were seen between the adherent and nonadherent groups in clinical or demographic characteristics or date of diagnostic sleep testing (eAppendix, available online at doi:10.12788/fp.0374). In baseline sleep studies the mean (SD) HI was 32.3 (15.8) in the adherent group compared with 14.7 (8.8) in the nonadherent group (P = .049). In contrast, obstructive AHI was not significantly lower in the adherent group: 51.9 (30.9) in the adherent group compared with 22.2 (20.6) in the nonadherent group (P = .09). The median (IQR) residual AHI on ASV as a percentage of the pretreatment AHI was 3.0% (2.4%-6.5%) in the adherent group compared with 11.3% (5.4%-89.1%) in the nonadherent group, a statistically significant difference (P = .01). No other significant differences were seen between the groups.

Discussion

This study describes a real-world cohort of patients using ASV therapy and the characteristics associated with benefit from therapy. The patients that were prescribed and started ASV therapy most often had a significant degree of obstructive component to sleep-disordered breathing, whether primary OSA with TECSA or comorbid OSA and CSA. Moreover, we found that a higher obstructive AHI on the baseline PSG was associated with adherence to ASV therapy. Another important finding was that a lower residual AHI on ASV as a proportion of the baseline was associated with PAP adherence. Adherent patients had similar clinical characteristics as the nonadherent patients, including comorbidities, severity of sleep-disordered breathing, and obesity.

Though the results of the SERVE-HF trial have dampened the enthusiasm somewhat, ASV therapy has long been considered an effective and well-tolerated treatment for many types of CSA.¹³ In fact, treatments that can eliminate the central AHI are fairly limited.^4,14 Our data suggest that ASV is also effective and tolerated in OSA with TECSA and/or comorbid CSA. Recent studies suggest that CSA resolves spontaneously in a majority of TECSA patients within 2 to 3 months of regular CPAP use.¹⁵ Other estimates suggest that persistent TESCA may be present in 2% of patients with OSA on treatment.¹⁶

Given the high and rising prevalence of OSA, many people are at risk for clinically significant TESCA. Another retrospective case series found that 72% of patients that failed treatment with CPAP or BPAP during PSG, met diagnostic criteria (at the time) for CSA; ASV was objectively beneficial in these patients.¹⁷ ASV can be an especially useful modality to treat OSA in patients with CSA that either prevents tolerance of standard therapies or causes clinical consequences, presuming the patient does not also have HFrEF.¹⁸ The long-term outcomes of treatment with ASV therapy remain a matter of debate.

The SERVE-HF trial remains among the only studies that have assessed the mortality effects of CSA treatments, with unfavorable findings. Treatment of OSA has been associated with favorable chronic health benefits, though recent studies have questioned the degree of benefit attributable to OSA treatment.^19-24 Similar studies have not been done for comorbidities represented by our study cohort (ie, OSA with TECSA and/or comorbid CSA).

The lack of CSA diagnosis alone in our cohort may be partially attributable to changing practice patterns following the SERVE-HF trial, though it is not clear from these data why a higher baseline obstructive AHI was associated with adherence to ASV therapy. Our data in this regard are somewhat at odds with the preliminary results of the ADVENT-HF trial. In that study, adherence to ASV therapy in patients with predominantly OSA declined significantly more than in patients with predominantly CSA.²⁵ Most of our patients were diagnosed with predominantly OSA, so a direct comparison with the CSA group is problematic; additionally, the primary brand and the pressure adjustments algorithm used in our study differed from the ADVENT-HF trial.

OSA and CSA may present with similar clinical symptoms, including sleep fragmentation, insomnia, and excessive daytime sleepiness; however, the degree of symptomatology, especially daytime sleepiness, and the response to treatment, may be less in CSA.^2,26 Both the subjective report of symptoms (ESS) and PSG measures of sleep fragmentation were similar in our patients, again likely explained by the predominance of obstructive events.

The pathophysiology of CSA is more varied than OSA, which is probably relevant in this case. ASV was originally designed for the management of CSA with CSR, accomplishing this goal by stabilizing the periods of central apnea and hyperpnea characteristic of CSR.²⁷ Although other forms of CSA demonstrate breathing patterns distinct from CSR, ASV has become an accepted treatment for most of these. It is plausible that the long-term subjective benefit and tolerance of ASV in CSA without CSR is less than for CSA with CSR or OSA. None of the patients in our study had CSA with CSR.

Ultimately, it may be the objective treatment effect that lends to adherence, as has been shown previously in OSA patients; our group of adherent patients showed a greater improvement in AHI, relative to baseline, than the nonadherent patients did.²⁸ The technology behind ASV therapy can greatly reduce the frequencies of central apneas, yet this same treatment effectively splints the upper airway and even more effectively eliminates obstructive apneas and hypopneas. Variable adjusting EPAP devices would plausibly provide even more benefit in these patients, as has been shown in prior studies.²⁹ To the contrary, our small sample of patients with TESCA showed a nonsignificant trend toward adherence with fixed EPAP ASV.

Opioid use was substantial in our population, without significant differences between the groups. CPAP therapy is ineffective in improving opioid-associated CSA. In a recent study, 20 patients on opioid therapy with CSA were treated with CPAP therapy; after several weeks, the average therapeutic use was 4 to 5 hours per night and CPAP was abandoned in favor of ASV therapy due to persistent central apnea. ASV treatment was associated with a considerable reduction in central apnea index, AHI, arousal index, and oxygen desaturations in a remarkable improvement over CPAP.³⁰

Limitations and Future Directions

This retrospective, single-center study may have limited applicability to other populations. Adherence was used as a surrogate for subjective benefit from treatment, though benefit was not confirmed by the patients directly. Only patients seen in follow-up for documentation of the ASV download were identified for inclusion and data analysis. As a single center, we risk homogeneity in the treatment algorithms, though sleep medicine treatments are often decided at the time of the sleep studies. Studies and treatment recommendations were made at a variety of sites, including our sleep center, other US Department of Veterans Affairs hospitals, in the community network, and at US Department of Defense centers. Our population was homogenous in some ways; notably, 100% of our group was male, which is substantially higher than both the veteran population and the general population. Risk factors for OSA and CSA are more common in male patients, which may partially explain this anomaly. Lastly, with our small sample size, there is increased risk that the results seen occurred by chance.

There are several areas for further study. A larger multicenter study may permit these results to be generalized to the population and should include subjective measures of benefit. Patients with primarily CSA were largely absent in our group and may be the focus of future studies; data on predictors of treatment adherence in CSA are lacking. With the availability of consistent older adherence data, comparisons may be made between the efficacies of clinical practice habits, including treatment efficacy, before and after the results of the SERVE-HF trial became known.

Conclusions

In selected patients with preserved LVEF, ASV therapy appears especially effective in patients with OSA combined with CSA. Adherence to ASV treatment was associated with higher obstructive AHI during the baseline PSG and with a greater reduction in the AHI. This understanding may help guide sleep specialists in personalizing treatments for sleep-disordered breathing. Because objective efficacy appears to be important for therapy adherence, clinicians should be able to consistently determine the obstructive and central components of the residual AHI, thus taking all information into account when optimizing the treatment. Additionally, both OSA and CSA pressure requirements should be considered when developing ASV devices.

Acknowledgments

We thank Martha Harper, RRT, of Hampton Veterans Affairs Medical Center (HVAMC) for helping to identify our patients and assisting with data collection. This material is the result of work supported with resources and the use of HVAMC facilities.

CHICAGO – It’s been 125 years since the founding of the American Gastroenterological Association (AGA). It’s gone from a small organization in which gastroenterology wasn’t even a known medical specialty, to an organization that grants millions of dollars in research funding each year.

University of California San Diego

Congratulating the organization on its 125th anniversary, AGA president John M. Carethers, MD, AGAF, reflected on its history and outlined many accomplishments and challenges. He spoke with optimism about gastroenterology’s future during his presidential address on May 8 at the annual Digestive Disease Week® (DDW) meeting in Chicago.

“I congratulate the AGA on its quasquicentennial, or 125th anniversary,” said Dr. Carethers, who is distinguished professor of medicine and vice chancellor for health sciences at the University of California, San Diego.

The AGA was founded in 1897 by Detroit-based physician Charles Aaron, MD. His passion was gastroenterology, but at that point, it wasn’t an established medical discipline. Dr. Aaron, Max Einhorn, MD, and 8 other colleagues formed the American Gastroenterological Association. Today, with nearly 16,000 members, the organization has become a driving force in improving the care of patients with gastrointestinal conditions.

Among AGA’s accomplishments since its founding: In 1940, the American Board of Internal Medicine certified gastroenterology as a subspecialty. Three years later, the first issue of Gastroenterology, the AGA’s flagship journal, was published. And, in 1971, the very first Digestive Disease Week® meeting took place.

In terms of medical advances that have been made since those early years, the list is vast: From the description of ileitis in 1932 by Burril B. Crohn, MD, in 1932 to the discovery of the hepatitis B surface antigen in 1965 and the more recent discovery of germline mutations in DNA mismatch repair genes as a cause of Lynch syndrome.

Dr. Carethers outlined goals for the future, including building a leadership team that is “reflective of our practice here in the United States,” Dr. Carethers said. Creating a culturally and gender diverse leadership team will only strengthen the organization and the practice of gastroenterology. The AGA’s first female president, Sarah Jordan, MD, was named in 1942, and since then, the AGA has been led by women and men from different ethnic backgrounds, including himself, who is AGA’s first president of African American heritage.

The AGA has committed to a number of diversity and equity objectives, including the AGA Equity Project, an initiative launched in 2020 whose goal is to achieve equity and eradicate disparities in digestive diseases with a focus on justice and equity, research and funding, workforce and leadership, recognition of the achievements of people of color, unconscious bias, and engagement with early career members.

“I am not only excited about the diversity and equity objectives within our specialty ... but also the innovation and things to come for our specialty,” Dr. Carethers said.

Securing funding for early-stage innovations in medicine can be difficult across medical disciplines, including gastroenterology. So, last year, the AGA, with Varia Ventures, launched the GI Opportunity Fund 1 to support early-stage GI-based companies. The goal is to raise $25 million for the initial fund. Through the AGA’s Center for GI Innovation and Technology and the AGA Tech Summit, early-stage companies may have new funding opportunities.

And, through the AGA Research Foundation, the organization will continue to support clinical research. Last year, $2.6 million in grants were awarded to investigators.

Dr. Carethers is a board director at Avantor, a life sciences supply company.

The meeting is sponsored by the American Gastroenterological Association, the American Association for the Study of Liver Diseases, the American Society for Gastrointestinal Endoscopy, and the Society for Surgery of the Alimentary Tract.

CHICAGO – It’s been 125 years since the founding of the American Gastroenterological Association (AGA). It’s gone from a small organization in which gastroenterology wasn’t even a known medical specialty, to an organization that grants millions of dollars in research funding each year.

University of California San Diego

Congratulating the organization on its 125th anniversary, AGA president John M. Carethers, MD, AGAF, reflected on its history and outlined many accomplishments and challenges. He spoke with optimism about gastroenterology’s future during his presidential address on May 8 at the annual Digestive Disease Week® (DDW) meeting in Chicago.

“I congratulate the AGA on its quasquicentennial, or 125th anniversary,” said Dr. Carethers, who is distinguished professor of medicine and vice chancellor for health sciences at the University of California, San Diego.

The AGA was founded in 1897 by Detroit-based physician Charles Aaron, MD. His passion was gastroenterology, but at that point, it wasn’t an established medical discipline. Dr. Aaron, Max Einhorn, MD, and 8 other colleagues formed the American Gastroenterological Association. Today, with nearly 16,000 members, the organization has become a driving force in improving the care of patients with gastrointestinal conditions.

Among AGA’s accomplishments since its founding: In 1940, the American Board of Internal Medicine certified gastroenterology as a subspecialty. Three years later, the first issue of Gastroenterology, the AGA’s flagship journal, was published. And, in 1971, the very first Digestive Disease Week® meeting took place.

In terms of medical advances that have been made since those early years, the list is vast: From the description of ileitis in 1932 by Burril B. Crohn, MD, in 1932 to the discovery of the hepatitis B surface antigen in 1965 and the more recent discovery of germline mutations in DNA mismatch repair genes as a cause of Lynch syndrome.

Dr. Carethers outlined goals for the future, including building a leadership team that is “reflective of our practice here in the United States,” Dr. Carethers said. Creating a culturally and gender diverse leadership team will only strengthen the organization and the practice of gastroenterology. The AGA’s first female president, Sarah Jordan, MD, was named in 1942, and since then, the AGA has been led by women and men from different ethnic backgrounds, including himself, who is AGA’s first president of African American heritage.

The AGA has committed to a number of diversity and equity objectives, including the AGA Equity Project, an initiative launched in 2020 whose goal is to achieve equity and eradicate disparities in digestive diseases with a focus on justice and equity, research and funding, workforce and leadership, recognition of the achievements of people of color, unconscious bias, and engagement with early career members.

“I am not only excited about the diversity and equity objectives within our specialty ... but also the innovation and things to come for our specialty,” Dr. Carethers said.

Securing funding for early-stage innovations in medicine can be difficult across medical disciplines, including gastroenterology. So, last year, the AGA, with Varia Ventures, launched the GI Opportunity Fund 1 to support early-stage GI-based companies. The goal is to raise $25 million for the initial fund. Through the AGA’s Center for GI Innovation and Technology and the AGA Tech Summit, early-stage companies may have new funding opportunities.

And, through the AGA Research Foundation, the organization will continue to support clinical research. Last year, $2.6 million in grants were awarded to investigators.

Dr. Carethers is a board director at Avantor, a life sciences supply company.

The meeting is sponsored by the American Gastroenterological Association, the American Association for the Study of Liver Diseases, the American Society for Gastrointestinal Endoscopy, and the Society for Surgery of the Alimentary Tract.

CHICAGO – It’s been 125 years since the founding of the American Gastroenterological Association (AGA). It’s gone from a small organization in which gastroenterology wasn’t even a known medical specialty, to an organization that grants millions of dollars in research funding each year.

University of California San Diego

Congratulating the organization on its 125th anniversary, AGA president John M. Carethers, MD, AGAF, reflected on its history and outlined many accomplishments and challenges. He spoke with optimism about gastroenterology’s future during his presidential address on May 8 at the annual Digestive Disease Week® (DDW) meeting in Chicago.

“I congratulate the AGA on its quasquicentennial, or 125th anniversary,” said Dr. Carethers, who is distinguished professor of medicine and vice chancellor for health sciences at the University of California, San Diego.

The AGA was founded in 1897 by Detroit-based physician Charles Aaron, MD. His passion was gastroenterology, but at that point, it wasn’t an established medical discipline. Dr. Aaron, Max Einhorn, MD, and 8 other colleagues formed the American Gastroenterological Association. Today, with nearly 16,000 members, the organization has become a driving force in improving the care of patients with gastrointestinal conditions.

Among AGA’s accomplishments since its founding: In 1940, the American Board of Internal Medicine certified gastroenterology as a subspecialty. Three years later, the first issue of Gastroenterology, the AGA’s flagship journal, was published. And, in 1971, the very first Digestive Disease Week® meeting took place.

In terms of medical advances that have been made since those early years, the list is vast: From the description of ileitis in 1932 by Burril B. Crohn, MD, in 1932 to the discovery of the hepatitis B surface antigen in 1965 and the more recent discovery of germline mutations in DNA mismatch repair genes as a cause of Lynch syndrome.

Dr. Carethers outlined goals for the future, including building a leadership team that is “reflective of our practice here in the United States,” Dr. Carethers said. Creating a culturally and gender diverse leadership team will only strengthen the organization and the practice of gastroenterology. The AGA’s first female president, Sarah Jordan, MD, was named in 1942, and since then, the AGA has been led by women and men from different ethnic backgrounds, including himself, who is AGA’s first president of African American heritage.

The AGA has committed to a number of diversity and equity objectives, including the AGA Equity Project, an initiative launched in 2020 whose goal is to achieve equity and eradicate disparities in digestive diseases with a focus on justice and equity, research and funding, workforce and leadership, recognition of the achievements of people of color, unconscious bias, and engagement with early career members.

“I am not only excited about the diversity and equity objectives within our specialty ... but also the innovation and things to come for our specialty,” Dr. Carethers said.

Securing funding for early-stage innovations in medicine can be difficult across medical disciplines, including gastroenterology. So, last year, the AGA, with Varia Ventures, launched the GI Opportunity Fund 1 to support early-stage GI-based companies. The goal is to raise $25 million for the initial fund. Through the AGA’s Center for GI Innovation and Technology and the AGA Tech Summit, early-stage companies may have new funding opportunities.

And, through the AGA Research Foundation, the organization will continue to support clinical research. Last year, $2.6 million in grants were awarded to investigators.

Dr. Carethers is a board director at Avantor, a life sciences supply company.

The meeting is sponsored by the American Gastroenterological Association, the American Association for the Study of Liver Diseases, the American Society for Gastrointestinal Endoscopy, and the Society for Surgery of the Alimentary Tract.

CHICAGO – The total annual waste generated by a single, large academic endoscopy unit over 2 months could cover about two football fields, according to Madhav Desai, MD, MPH, assistant professor of medicine at the University of Minnesota, Minneapolis. About 20% of the waste, most of which went to landfills, was potentially recyclable, he said in a presentation given at the annual Digestive Disease Week® meeting.

Gastrointestinal endoscopies are critical for the screening, diagnosis, and treatment of a variety of gastrointestinal conditions. But like other medical procedures, endoscopies are a source of environmental waste, including plastic, sharps, personal protective equipment (PPE), and cleaning supplies, and also energy waste.

Walter Alexander/MDedge News

“This all goes back to the damage that mankind is inflicting on the environment in general, with the health care sector as one of the top contributors to plastic waste generation, landfills and water wastage,” Dr. Desai said. “Endoscopies, with their numerous benefits, substantially increase waste generation through landfill waste and liquid consumption and waste through the cleaning of endoscopes. We have a responsibility to look into this topic.”

To prospectively assess total waste generation from their institution, Dr. Desai, who was with the Kansas City (Mo.) Veterans Administration Medical Center, when the research was conducted, collected data on the items used in 450 consecutive procedures from May to June 2022. The data included procedure type, accessory use, intravenous tubing, numbers of biopsy jars, linens, PPE, and more, beginning at the point of patient entry to the endoscopy unit until discharge. They also collected data on waste generation related to reprocessing after each procedure and daily energy use (including endoscopy equipment, lights, and computers). With an eye toward finding opportunities to improve and maximize waste recycling, they stratified waste into the three categories of biohazardous, nonbiohazardous, or potentially recyclable.

“We found that the total waste generated during the time period was 1,398.6 kg, with more than half of it, 61.6%, going directly to landfill,” Dr. Desai said in an interview. “That’s an amount that an average family in the U.S. would use for 2 months. That’s a huge amount.”
 

Most waste consists of sharps

Exactly one-third was biohazard waste and 5.1% was sharps, they found. A single procedure, on average, sent 2.19 kg of waste to landfill. Extrapolated to 1 year, the waste total amounts to 9,189 kg (equivalent to just over 10 U.S. tons) and per 100 procedures to 219 kg (about 483 pounds).

They estimated 20% of the landfill waste was potentially recyclable (such as plastic CO₂ tubing, O₂ connector, syringes, etc.), which could reduce the total landfill burden by 8.6 kg per day or 2,580 kg per year (or 61 kg per 100 procedures). Reprocessing endoscopes generated 194 gallons of liquid waste (735.26 kg) per day or 1,385 gallons per 100 procedures.

Turning to energy consumption, Dr. Desai reported that daily use in the endoscopy unit was 277.1 kW-hours (equivalent to 8.2 gallons of gasoline), adding up to about 1,980 kW per 100 procedures. “That 100-procedure amount is the equivalent of the energy used for an average fuel efficiency car to travel 1,200 miles, the distance from Seattle to San Diego,” he said.

“One next step,” Dr. Desai said, “is getting help from GI societies to come together and have endoscopy units track their own performance. You need benchmarks so that you can determine how good an endoscopist you are with respect to waste.”

He commented further:“We all owe it to the environment. And, we have all witnessed what Mother Nature can do to you.”

Working on the potentially recyclable materials that account for 20% of the total waste would be a simple initial step to reduce waste going to landfills, Dr. Desai and colleagues concluded in the meeting abstract. “These data could serve as an actionable model for health systems to reduce total waste generation and move toward environmentally sustainable endoscopy units,” they wrote.

The authors reported no disclosures.

DDW is sponsored by the American Association for the Study of Liver Diseases, the American Gastroenterological Association, the American Society for Gastrointestinal Endoscopy, and The Society for Surgery of the Alimentary Tract.

CHICAGO – The total annual waste generated by a single, large academic endoscopy unit over 2 months could cover about two football fields, according to Madhav Desai, MD, MPH, assistant professor of medicine at the University of Minnesota, Minneapolis. About 20% of the waste, most of which went to landfills, was potentially recyclable, he said in a presentation given at the annual Digestive Disease Week® meeting.

Gastrointestinal endoscopies are critical for the screening, diagnosis, and treatment of a variety of gastrointestinal conditions. But like other medical procedures, endoscopies are a source of environmental waste, including plastic, sharps, personal protective equipment (PPE), and cleaning supplies, and also energy waste.

Walter Alexander/MDedge News

“This all goes back to the damage that mankind is inflicting on the environment in general, with the health care sector as one of the top contributors to plastic waste generation, landfills and water wastage,” Dr. Desai said. “Endoscopies, with their numerous benefits, substantially increase waste generation through landfill waste and liquid consumption and waste through the cleaning of endoscopes. We have a responsibility to look into this topic.”

To prospectively assess total waste generation from their institution, Dr. Desai, who was with the Kansas City (Mo.) Veterans Administration Medical Center, when the research was conducted, collected data on the items used in 450 consecutive procedures from May to June 2022. The data included procedure type, accessory use, intravenous tubing, numbers of biopsy jars, linens, PPE, and more, beginning at the point of patient entry to the endoscopy unit until discharge. They also collected data on waste generation related to reprocessing after each procedure and daily energy use (including endoscopy equipment, lights, and computers). With an eye toward finding opportunities to improve and maximize waste recycling, they stratified waste into the three categories of biohazardous, nonbiohazardous, or potentially recyclable.

“We found that the total waste generated during the time period was 1,398.6 kg, with more than half of it, 61.6%, going directly to landfill,” Dr. Desai said in an interview. “That’s an amount that an average family in the U.S. would use for 2 months. That’s a huge amount.”
 

Most waste consists of sharps

Exactly one-third was biohazard waste and 5.1% was sharps, they found. A single procedure, on average, sent 2.19 kg of waste to landfill. Extrapolated to 1 year, the waste total amounts to 9,189 kg (equivalent to just over 10 U.S. tons) and per 100 procedures to 219 kg (about 483 pounds).

They estimated 20% of the landfill waste was potentially recyclable (such as plastic CO₂ tubing, O₂ connector, syringes, etc.), which could reduce the total landfill burden by 8.6 kg per day or 2,580 kg per year (or 61 kg per 100 procedures). Reprocessing endoscopes generated 194 gallons of liquid waste (735.26 kg) per day or 1,385 gallons per 100 procedures.

Turning to energy consumption, Dr. Desai reported that daily use in the endoscopy unit was 277.1 kW-hours (equivalent to 8.2 gallons of gasoline), adding up to about 1,980 kW per 100 procedures. “That 100-procedure amount is the equivalent of the energy used for an average fuel efficiency car to travel 1,200 miles, the distance from Seattle to San Diego,” he said.

“One next step,” Dr. Desai said, “is getting help from GI societies to come together and have endoscopy units track their own performance. You need benchmarks so that you can determine how good an endoscopist you are with respect to waste.”

He commented further:“We all owe it to the environment. And, we have all witnessed what Mother Nature can do to you.”

Working on the potentially recyclable materials that account for 20% of the total waste would be a simple initial step to reduce waste going to landfills, Dr. Desai and colleagues concluded in the meeting abstract. “These data could serve as an actionable model for health systems to reduce total waste generation and move toward environmentally sustainable endoscopy units,” they wrote.

The authors reported no disclosures.

DDW is sponsored by the American Association for the Study of Liver Diseases, the American Gastroenterological Association, the American Society for Gastrointestinal Endoscopy, and The Society for Surgery of the Alimentary Tract.

CHICAGO – The total annual waste generated by a single, large academic endoscopy unit over 2 months could cover about two football fields, according to Madhav Desai, MD, MPH, assistant professor of medicine at the University of Minnesota, Minneapolis. About 20% of the waste, most of which went to landfills, was potentially recyclable, he said in a presentation given at the annual Digestive Disease Week® meeting.

Gastrointestinal endoscopies are critical for the screening, diagnosis, and treatment of a variety of gastrointestinal conditions. But like other medical procedures, endoscopies are a source of environmental waste, including plastic, sharps, personal protective equipment (PPE), and cleaning supplies, and also energy waste.

Walter Alexander/MDedge News

“This all goes back to the damage that mankind is inflicting on the environment in general, with the health care sector as one of the top contributors to plastic waste generation, landfills and water wastage,” Dr. Desai said. “Endoscopies, with their numerous benefits, substantially increase waste generation through landfill waste and liquid consumption and waste through the cleaning of endoscopes. We have a responsibility to look into this topic.”

To prospectively assess total waste generation from their institution, Dr. Desai, who was with the Kansas City (Mo.) Veterans Administration Medical Center, when the research was conducted, collected data on the items used in 450 consecutive procedures from May to June 2022. The data included procedure type, accessory use, intravenous tubing, numbers of biopsy jars, linens, PPE, and more, beginning at the point of patient entry to the endoscopy unit until discharge. They also collected data on waste generation related to reprocessing after each procedure and daily energy use (including endoscopy equipment, lights, and computers). With an eye toward finding opportunities to improve and maximize waste recycling, they stratified waste into the three categories of biohazardous, nonbiohazardous, or potentially recyclable.

“We found that the total waste generated during the time period was 1,398.6 kg, with more than half of it, 61.6%, going directly to landfill,” Dr. Desai said in an interview. “That’s an amount that an average family in the U.S. would use for 2 months. That’s a huge amount.”
 

Most waste consists of sharps

Exactly one-third was biohazard waste and 5.1% was sharps, they found. A single procedure, on average, sent 2.19 kg of waste to landfill. Extrapolated to 1 year, the waste total amounts to 9,189 kg (equivalent to just over 10 U.S. tons) and per 100 procedures to 219 kg (about 483 pounds).

They estimated 20% of the landfill waste was potentially recyclable (such as plastic CO₂ tubing, O₂ connector, syringes, etc.), which could reduce the total landfill burden by 8.6 kg per day or 2,580 kg per year (or 61 kg per 100 procedures). Reprocessing endoscopes generated 194 gallons of liquid waste (735.26 kg) per day or 1,385 gallons per 100 procedures.

Turning to energy consumption, Dr. Desai reported that daily use in the endoscopy unit was 277.1 kW-hours (equivalent to 8.2 gallons of gasoline), adding up to about 1,980 kW per 100 procedures. “That 100-procedure amount is the equivalent of the energy used for an average fuel efficiency car to travel 1,200 miles, the distance from Seattle to San Diego,” he said.

“One next step,” Dr. Desai said, “is getting help from GI societies to come together and have endoscopy units track their own performance. You need benchmarks so that you can determine how good an endoscopist you are with respect to waste.”

He commented further:“We all owe it to the environment. And, we have all witnessed what Mother Nature can do to you.”

Working on the potentially recyclable materials that account for 20% of the total waste would be a simple initial step to reduce waste going to landfills, Dr. Desai and colleagues concluded in the meeting abstract. “These data could serve as an actionable model for health systems to reduce total waste generation and move toward environmentally sustainable endoscopy units,” they wrote.

The authors reported no disclosures.

DDW is sponsored by the American Association for the Study of Liver Diseases, the American Gastroenterological Association, the American Society for Gastrointestinal Endoscopy, and The Society for Surgery of the Alimentary Tract.