TOPLINE:

A fiber supplement also found in beans and other foods may lead to weight loss and improved insulin sensitivity in people with excess body weight, partly due to changes in the gut microbiota.

METHODOLOGY:

• In animal studies, resistant starch (RS), a kind of dietary fiber, has shown a potential to reduce body fat along with other metabolic benefits, but human dietary studies of RS have been inconsistent, especially with a high-fat diet.
• Researchers conducted a crossover, randomized trial to study the effect of RS as a dietary supplement on 37 individuals with overweight or obesity (average age, 33.43 years; 15 women; body mass index > 24 or higher waist circumference).
• Participants were fed a similar background diet and either 40 g of RS (high-amylose maize) or an energy-matched placebo starch daily for 8 weeks and then switched between the two in a separate 8-week period.
• The primary outcome was body weight, and the secondary outcomes were visceral and subcutaneous fat mass, waist circumference, lipid profiles, insulin sensitivity, metabolome, and gut microbiome.
• RS’s impact on gut microbiota composition and function was assessed with metagenomics and metabolomics, and RS-modified gut microbiota’s effect on host body fat and glucose was confirmed by transferring from select average participants to mice.

TAKEAWAY:

• Participants showed a mean weight loss of 2.8 kg after consuming RS for 8 weeks (P < .001), but there was no significant change in body weight in those on placebo starch.
• RS improved insulin sensitivity in people to a greater extent than placebo starch (P = .025) and showed a greater reduction in fat mass, waist circumference, and other obesity-related outcomes.
• The abundance in the gut of the microbe Bifidobacterium adolescentis increased significantly following RS intervention, an increase that exhibited a strong correlation with decreased BMI, suggesting a role of RS in reducing obesity.
• The levels of pro-inflammatory cytokines, such as serum tumor necrosis factor-alpha and interleukin-1 beta, were significantly lower in participants who consumed RS than in those who had placebo starch.

IN PRACTICE:

“Our study provided an effective dietary recommendation using RS as a supplement (40 g/d with a balanced background diet containing 25%-30% fat), which may help to achieve significant weight loss,” the authors wrote.

SOURCE:

This study was led and corresponded by Huating Li, Shanghai Clinical Center for Diabetes, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China, and University of Hong Kong, Pok Fu Lam, and published online in Nature Metabolism.

LIMITATIONS:

This study was limited by the small sample size and stringent inclusion criteria for participants. The use of database-driven and taxane-based methodology might have led to difficult-to-classify sequences being discarded and strain-level functional diversity being overlooked. The authors also acknowledged the need to validate the findings of this study in larger and more diverse cohorts.

DISCLOSURES:

This work was supported by the National Key Research and Development Program of China, Shanghai Municipal Key Clinical Specialty, National Natural Science Foundation of China, and other sources. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

A fiber supplement also found in beans and other foods may lead to weight loss and improved insulin sensitivity in people with excess body weight, partly due to changes in the gut microbiota.

METHODOLOGY:

• In animal studies, resistant starch (RS), a kind of dietary fiber, has shown a potential to reduce body fat along with other metabolic benefits, but human dietary studies of RS have been inconsistent, especially with a high-fat diet.
• Researchers conducted a crossover, randomized trial to study the effect of RS as a dietary supplement on 37 individuals with overweight or obesity (average age, 33.43 years; 15 women; body mass index > 24 or higher waist circumference).
• Participants were fed a similar background diet and either 40 g of RS (high-amylose maize) or an energy-matched placebo starch daily for 8 weeks and then switched between the two in a separate 8-week period.
• The primary outcome was body weight, and the secondary outcomes were visceral and subcutaneous fat mass, waist circumference, lipid profiles, insulin sensitivity, metabolome, and gut microbiome.
• RS’s impact on gut microbiota composition and function was assessed with metagenomics and metabolomics, and RS-modified gut microbiota’s effect on host body fat and glucose was confirmed by transferring from select average participants to mice.

TAKEAWAY:

• Participants showed a mean weight loss of 2.8 kg after consuming RS for 8 weeks (P < .001), but there was no significant change in body weight in those on placebo starch.
• RS improved insulin sensitivity in people to a greater extent than placebo starch (P = .025) and showed a greater reduction in fat mass, waist circumference, and other obesity-related outcomes.
• The abundance in the gut of the microbe Bifidobacterium adolescentis increased significantly following RS intervention, an increase that exhibited a strong correlation with decreased BMI, suggesting a role of RS in reducing obesity.
• The levels of pro-inflammatory cytokines, such as serum tumor necrosis factor-alpha and interleukin-1 beta, were significantly lower in participants who consumed RS than in those who had placebo starch.

IN PRACTICE:

“Our study provided an effective dietary recommendation using RS as a supplement (40 g/d with a balanced background diet containing 25%-30% fat), which may help to achieve significant weight loss,” the authors wrote.

SOURCE:

This study was led and corresponded by Huating Li, Shanghai Clinical Center for Diabetes, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China, and University of Hong Kong, Pok Fu Lam, and published online in Nature Metabolism.

LIMITATIONS:

This study was limited by the small sample size and stringent inclusion criteria for participants. The use of database-driven and taxane-based methodology might have led to difficult-to-classify sequences being discarded and strain-level functional diversity being overlooked. The authors also acknowledged the need to validate the findings of this study in larger and more diverse cohorts.

DISCLOSURES:

This work was supported by the National Key Research and Development Program of China, Shanghai Municipal Key Clinical Specialty, National Natural Science Foundation of China, and other sources. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

A fiber supplement also found in beans and other foods may lead to weight loss and improved insulin sensitivity in people with excess body weight, partly due to changes in the gut microbiota.

METHODOLOGY:

• In animal studies, resistant starch (RS), a kind of dietary fiber, has shown a potential to reduce body fat along with other metabolic benefits, but human dietary studies of RS have been inconsistent, especially with a high-fat diet.
• Researchers conducted a crossover, randomized trial to study the effect of RS as a dietary supplement on 37 individuals with overweight or obesity (average age, 33.43 years; 15 women; body mass index > 24 or higher waist circumference).
• Participants were fed a similar background diet and either 40 g of RS (high-amylose maize) or an energy-matched placebo starch daily for 8 weeks and then switched between the two in a separate 8-week period.
• The primary outcome was body weight, and the secondary outcomes were visceral and subcutaneous fat mass, waist circumference, lipid profiles, insulin sensitivity, metabolome, and gut microbiome.
• RS’s impact on gut microbiota composition and function was assessed with metagenomics and metabolomics, and RS-modified gut microbiota’s effect on host body fat and glucose was confirmed by transferring from select average participants to mice.

TAKEAWAY:

• Participants showed a mean weight loss of 2.8 kg after consuming RS for 8 weeks (P < .001), but there was no significant change in body weight in those on placebo starch.
• RS improved insulin sensitivity in people to a greater extent than placebo starch (P = .025) and showed a greater reduction in fat mass, waist circumference, and other obesity-related outcomes.
• The abundance in the gut of the microbe Bifidobacterium adolescentis increased significantly following RS intervention, an increase that exhibited a strong correlation with decreased BMI, suggesting a role of RS in reducing obesity.
• The levels of pro-inflammatory cytokines, such as serum tumor necrosis factor-alpha and interleukin-1 beta, were significantly lower in participants who consumed RS than in those who had placebo starch.

IN PRACTICE:

“Our study provided an effective dietary recommendation using RS as a supplement (40 g/d with a balanced background diet containing 25%-30% fat), which may help to achieve significant weight loss,” the authors wrote.

SOURCE:

This study was led and corresponded by Huating Li, Shanghai Clinical Center for Diabetes, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China, and University of Hong Kong, Pok Fu Lam, and published online in Nature Metabolism.

LIMITATIONS:

This study was limited by the small sample size and stringent inclusion criteria for participants. The use of database-driven and taxane-based methodology might have led to difficult-to-classify sequences being discarded and strain-level functional diversity being overlooked. The authors also acknowledged the need to validate the findings of this study in larger and more diverse cohorts.

DISCLOSURES:

This work was supported by the National Key Research and Development Program of China, Shanghai Municipal Key Clinical Specialty, National Natural Science Foundation of China, and other sources. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

Symptoms of sleep apnea, including snorting, gasping, or paused breathing during sleep, are associated with a significantly greater risk for problems with cognition and memory, results from a large study showed.

Data from a representative sample of US adults show that those who reported sleep apnea symptoms were about 50% more likely to also report cognitive issues vs their counterparts without such symptoms.

“For clinicians, these findings suggest a potential benefit of considering sleep apnea as a possible contributing or exacerbating factor in individuals experiencing memory or cognitive problems. This could prompt further evaluation for sleep apnea, particularly in at-risk individuals,” study investigator Dominique Low, MD, MPH, department of neurology, Boston Medical Center, told this news organization.

The findings will be presented at the American Academy of Neurology (AAN) 2024 Annual Meeting on April 17.
 

Need to Raise Awareness

The findings are based on 4257 adults who participated in the 2017-2018 National Health and Nutrition Examination Survey and completed questionnaires covering sleep, memory, cognition, and decision-making abilities.

Those who reported snorting, gasping, or breathing pauses during sleep were categorized as experiencing sleep apnea symptoms. Those who reported memory trouble, periods of confusion, difficulty concentrating, or decision-making problems were classified as having memory or cognitive symptoms.

Overall, 1079 participants reported symptoms of sleep apnea. Compared with people without sleep apnea, those with symptoms were more likely to have cognitive problems (33% vs 20%) and have greater odds of having memory or cognitive symptoms, even after adjusting for age, gender, race, and education (adjusted odds ratio, 2.02; P < .001).

“While the study did not establish a cause-and-effect relationship, the findings suggest the importance of raising awareness about the potential link between sleep and cognitive function. Early identification and treatment may improve overall health and potentially lead to a better quality of life,” Dr. Low said.

Limitations of the study include self-reported data on sleep apnea symptoms and cognitive issues sourced from one survey.
 

Consistent Data

Reached for comment, Matthew Pase, PhD, with the Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia, said the results are similar to earlier work that found a link between obstructive sleep apnea (OSA) and cognition.

For example, in a recent study, the presence of mild to severe OSA, identified using overnight polysomnography in five community-based cohorts with more than 5900 adults, was associated with poorer cognitive test performance, Dr. Pase told this news organization.

“These and other results underscore the importance of healthy sleep for optimal brain health. Future research is needed to test if treating OSA and other sleep disorders can reduce the risk of cognitive impairment,” Dr. Pase said.

Yet, in their latest statement on the topic, reported by this news organization, the US Preventive Services Task Force concluded there remains insufficient evidence to weigh the balance of benefits and harms of screening for OSA among asymptomatic adults and those with unrecognized symptoms.

The study had no specific funding. Dr. Low and Dr. Pase had no relevant disclosures.

A version of this article appeared on Medscape.com.

Symptoms of sleep apnea, including snorting, gasping, or paused breathing during sleep, are associated with a significantly greater risk for problems with cognition and memory, results from a large study showed.

Data from a representative sample of US adults show that those who reported sleep apnea symptoms were about 50% more likely to also report cognitive issues vs their counterparts without such symptoms.

“For clinicians, these findings suggest a potential benefit of considering sleep apnea as a possible contributing or exacerbating factor in individuals experiencing memory or cognitive problems. This could prompt further evaluation for sleep apnea, particularly in at-risk individuals,” study investigator Dominique Low, MD, MPH, department of neurology, Boston Medical Center, told this news organization.

The findings will be presented at the American Academy of Neurology (AAN) 2024 Annual Meeting on April 17.
 

Need to Raise Awareness

The findings are based on 4257 adults who participated in the 2017-2018 National Health and Nutrition Examination Survey and completed questionnaires covering sleep, memory, cognition, and decision-making abilities.

Those who reported snorting, gasping, or breathing pauses during sleep were categorized as experiencing sleep apnea symptoms. Those who reported memory trouble, periods of confusion, difficulty concentrating, or decision-making problems were classified as having memory or cognitive symptoms.

Overall, 1079 participants reported symptoms of sleep apnea. Compared with people without sleep apnea, those with symptoms were more likely to have cognitive problems (33% vs 20%) and have greater odds of having memory or cognitive symptoms, even after adjusting for age, gender, race, and education (adjusted odds ratio, 2.02; P < .001).

“While the study did not establish a cause-and-effect relationship, the findings suggest the importance of raising awareness about the potential link between sleep and cognitive function. Early identification and treatment may improve overall health and potentially lead to a better quality of life,” Dr. Low said.

Limitations of the study include self-reported data on sleep apnea symptoms and cognitive issues sourced from one survey.
 

Consistent Data

Reached for comment, Matthew Pase, PhD, with the Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia, said the results are similar to earlier work that found a link between obstructive sleep apnea (OSA) and cognition.

For example, in a recent study, the presence of mild to severe OSA, identified using overnight polysomnography in five community-based cohorts with more than 5900 adults, was associated with poorer cognitive test performance, Dr. Pase told this news organization.

“These and other results underscore the importance of healthy sleep for optimal brain health. Future research is needed to test if treating OSA and other sleep disorders can reduce the risk of cognitive impairment,” Dr. Pase said.

Yet, in their latest statement on the topic, reported by this news organization, the US Preventive Services Task Force concluded there remains insufficient evidence to weigh the balance of benefits and harms of screening for OSA among asymptomatic adults and those with unrecognized symptoms.

The study had no specific funding. Dr. Low and Dr. Pase had no relevant disclosures.

A version of this article appeared on Medscape.com.

Symptoms of sleep apnea, including snorting, gasping, or paused breathing during sleep, are associated with a significantly greater risk for problems with cognition and memory, results from a large study showed.

Data from a representative sample of US adults show that those who reported sleep apnea symptoms were about 50% more likely to also report cognitive issues vs their counterparts without such symptoms.

“For clinicians, these findings suggest a potential benefit of considering sleep apnea as a possible contributing or exacerbating factor in individuals experiencing memory or cognitive problems. This could prompt further evaluation for sleep apnea, particularly in at-risk individuals,” study investigator Dominique Low, MD, MPH, department of neurology, Boston Medical Center, told this news organization.

The findings will be presented at the American Academy of Neurology (AAN) 2024 Annual Meeting on April 17.
 

Need to Raise Awareness

The findings are based on 4257 adults who participated in the 2017-2018 National Health and Nutrition Examination Survey and completed questionnaires covering sleep, memory, cognition, and decision-making abilities.

Those who reported snorting, gasping, or breathing pauses during sleep were categorized as experiencing sleep apnea symptoms. Those who reported memory trouble, periods of confusion, difficulty concentrating, or decision-making problems were classified as having memory or cognitive symptoms.

Overall, 1079 participants reported symptoms of sleep apnea. Compared with people without sleep apnea, those with symptoms were more likely to have cognitive problems (33% vs 20%) and have greater odds of having memory or cognitive symptoms, even after adjusting for age, gender, race, and education (adjusted odds ratio, 2.02; P < .001).

“While the study did not establish a cause-and-effect relationship, the findings suggest the importance of raising awareness about the potential link between sleep and cognitive function. Early identification and treatment may improve overall health and potentially lead to a better quality of life,” Dr. Low said.

Limitations of the study include self-reported data on sleep apnea symptoms and cognitive issues sourced from one survey.
 

Consistent Data

Reached for comment, Matthew Pase, PhD, with the Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia, said the results are similar to earlier work that found a link between obstructive sleep apnea (OSA) and cognition.

For example, in a recent study, the presence of mild to severe OSA, identified using overnight polysomnography in five community-based cohorts with more than 5900 adults, was associated with poorer cognitive test performance, Dr. Pase told this news organization.

“These and other results underscore the importance of healthy sleep for optimal brain health. Future research is needed to test if treating OSA and other sleep disorders can reduce the risk of cognitive impairment,” Dr. Pase said.

Yet, in their latest statement on the topic, reported by this news organization, the US Preventive Services Task Force concluded there remains insufficient evidence to weigh the balance of benefits and harms of screening for OSA among asymptomatic adults and those with unrecognized symptoms.

The study had no specific funding. Dr. Low and Dr. Pase had no relevant disclosures.

A version of this article appeared on Medscape.com.

Did you know you can honor a family member, friend, or colleague whose life has been touched by GI research through a gift to the AGA Research Foundation? Your gift will honor a loved one or yourself and support the AGA Research Awards Program, while giving you a tax benefit.

• Giving now or later. Any charitable gift can be made in honor or memory of someone.
• A gift today. An outright gift will help fund the AGA Research Awards Program. Your gift will assist in furthering basic digestive disease research which can ultimately advance research into all digestive diseases. The financial benefits include an income tax deduction and possible elimination of capital gains tax. A cash gift of $5,000 or more qualifies for membership in the AGA Supporter Circle.
• A gift through your will or living trust. You can include a bequest in your will or living trust stating that a specific asset, certain dollar amount, or more commonly a percentage of your estate will pass to the AGA Research Foundation in honor of your loved one. A gift in your will of $50,000 or more qualifies for membership in the AGA Legacy Society, which recognizes the foundation’s most generous individual donors.
• Named commentary section funds. You can support a commentary section in a specific AGA journal to honor or memorialize a loved one. This can be established with a gift of $100,000 over the course of 5 years or through an estate gift. The AGA Institute Publications Committee will work with you to provide name recognition for the commentary section in a specific AGA journal for five years. All content and editing will be conducted by the editorial board of the journal.

Your Next Step

An honorary gift is a wonderful way to acknowledge someone’s vision for the future. To learn more about ways to recognize your honoree, visit our website at www.foundation.gastro.org.

Did you know you can honor a family member, friend, or colleague whose life has been touched by GI research through a gift to the AGA Research Foundation? Your gift will honor a loved one or yourself and support the AGA Research Awards Program, while giving you a tax benefit.

• Giving now or later. Any charitable gift can be made in honor or memory of someone.
• A gift today. An outright gift will help fund the AGA Research Awards Program. Your gift will assist in furthering basic digestive disease research which can ultimately advance research into all digestive diseases. The financial benefits include an income tax deduction and possible elimination of capital gains tax. A cash gift of $5,000 or more qualifies for membership in the AGA Supporter Circle.
• A gift through your will or living trust. You can include a bequest in your will or living trust stating that a specific asset, certain dollar amount, or more commonly a percentage of your estate will pass to the AGA Research Foundation in honor of your loved one. A gift in your will of $50,000 or more qualifies for membership in the AGA Legacy Society, which recognizes the foundation’s most generous individual donors.
• Named commentary section funds. You can support a commentary section in a specific AGA journal to honor or memorialize a loved one. This can be established with a gift of $100,000 over the course of 5 years or through an estate gift. The AGA Institute Publications Committee will work with you to provide name recognition for the commentary section in a specific AGA journal for five years. All content and editing will be conducted by the editorial board of the journal.

Your Next Step

An honorary gift is a wonderful way to acknowledge someone’s vision for the future. To learn more about ways to recognize your honoree, visit our website at www.foundation.gastro.org.

Did you know you can honor a family member, friend, or colleague whose life has been touched by GI research through a gift to the AGA Research Foundation? Your gift will honor a loved one or yourself and support the AGA Research Awards Program, while giving you a tax benefit.

• Giving now or later. Any charitable gift can be made in honor or memory of someone.
• A gift today. An outright gift will help fund the AGA Research Awards Program. Your gift will assist in furthering basic digestive disease research which can ultimately advance research into all digestive diseases. The financial benefits include an income tax deduction and possible elimination of capital gains tax. A cash gift of $5,000 or more qualifies for membership in the AGA Supporter Circle.
• A gift through your will or living trust. You can include a bequest in your will or living trust stating that a specific asset, certain dollar amount, or more commonly a percentage of your estate will pass to the AGA Research Foundation in honor of your loved one. A gift in your will of $50,000 or more qualifies for membership in the AGA Legacy Society, which recognizes the foundation’s most generous individual donors.
• Named commentary section funds. You can support a commentary section in a specific AGA journal to honor or memorialize a loved one. This can be established with a gift of $100,000 over the course of 5 years or through an estate gift. The AGA Institute Publications Committee will work with you to provide name recognition for the commentary section in a specific AGA journal for five years. All content and editing will be conducted by the editorial board of the journal.

Your Next Step

An honorary gift is a wonderful way to acknowledge someone’s vision for the future. To learn more about ways to recognize your honoree, visit our website at www.foundation.gastro.org.

TOPLINE: 

In patients with type 2 diabetes, there was no difference in risk of developing autoimmune disease if prescribed glucagon-like peptide 1 receptor agonists (GLP-1-RAs), sodium-glucose cotransporter-2 (SGLT2) inhibitors, or dipeptidyl peptidase-4 (DPP-4) inhibitors.

METHODOLOGY:

• The effect of GLP-1-RAs and SGLT2 inhibitors on autoimmune rheumatic disease (ARD) is understudied, though previous case reports and one study have hinted at increased risk.
• Researchers used administrative health data from 2014 to 2021 to identify 34,400 patients prescribed GLP-1-RAs and 83,500 patients prescribed SGLT2 inhibitors.
• They compared patients prescribed GLP-1-RAs or SGLT2 inhibitors with 68,400 patients prescribed DPP-4 inhibitors, which previous studies suggest do not increase ARD risk.
• Primary outcome was ARD incidence, defined by diagnostic codes.

TAKEAWAY:

• There were no significant differences in incident ARDs between the three groups.
• Mean follow-up time was 0.88-1.53 years.
• The hazard ratio (HR) for developing ARDs with GLP-1-RAs exposure was 0.93 (95% CI, 0.66-1.30) compared with DPP-4 inhibitors.
• The HR for developing ARDs with SGLT2 inhibitor exposure was 0.97 (95% CI, 0.76-1.24).

IN PRACTICE: 

“Extended longitudinal data are needed to assess risk and benefit with longer-term exposure,” the authors wrote.

SOURCE: 

First author Derin Karacabeyli, MD, of the University of British Columbia, Vancouver, Canada, presented the study in abstract form at the Canadian Rheumatology Association (CRA) 2024 Annual Meeting in Winnipeg on February 29.

LIMITATIONS: 

The study was observational, which could have some residual or unmeasured confounding of data. The researchers relied on diagnostic codes and the average follow-up time was short. 

DISCLOSURES:

The study was funded by the Canadian Institutes of Health Research. The authors had no disclosures.

A version of this article appeared on Medscape.com.

TOPLINE: 

In patients with type 2 diabetes, there was no difference in risk of developing autoimmune disease if prescribed glucagon-like peptide 1 receptor agonists (GLP-1-RAs), sodium-glucose cotransporter-2 (SGLT2) inhibitors, or dipeptidyl peptidase-4 (DPP-4) inhibitors.

METHODOLOGY:

• The effect of GLP-1-RAs and SGLT2 inhibitors on autoimmune rheumatic disease (ARD) is understudied, though previous case reports and one study have hinted at increased risk.
• Researchers used administrative health data from 2014 to 2021 to identify 34,400 patients prescribed GLP-1-RAs and 83,500 patients prescribed SGLT2 inhibitors.
• They compared patients prescribed GLP-1-RAs or SGLT2 inhibitors with 68,400 patients prescribed DPP-4 inhibitors, which previous studies suggest do not increase ARD risk.
• Primary outcome was ARD incidence, defined by diagnostic codes.

TAKEAWAY:

• There were no significant differences in incident ARDs between the three groups.
• Mean follow-up time was 0.88-1.53 years.
• The hazard ratio (HR) for developing ARDs with GLP-1-RAs exposure was 0.93 (95% CI, 0.66-1.30) compared with DPP-4 inhibitors.
• The HR for developing ARDs with SGLT2 inhibitor exposure was 0.97 (95% CI, 0.76-1.24).

IN PRACTICE: 

“Extended longitudinal data are needed to assess risk and benefit with longer-term exposure,” the authors wrote.

SOURCE: 

First author Derin Karacabeyli, MD, of the University of British Columbia, Vancouver, Canada, presented the study in abstract form at the Canadian Rheumatology Association (CRA) 2024 Annual Meeting in Winnipeg on February 29.

LIMITATIONS: 

The study was observational, which could have some residual or unmeasured confounding of data. The researchers relied on diagnostic codes and the average follow-up time was short. 

DISCLOSURES:

The study was funded by the Canadian Institutes of Health Research. The authors had no disclosures.

A version of this article appeared on Medscape.com.

TOPLINE: 

In patients with type 2 diabetes, there was no difference in risk of developing autoimmune disease if prescribed glucagon-like peptide 1 receptor agonists (GLP-1-RAs), sodium-glucose cotransporter-2 (SGLT2) inhibitors, or dipeptidyl peptidase-4 (DPP-4) inhibitors.

METHODOLOGY:

• The effect of GLP-1-RAs and SGLT2 inhibitors on autoimmune rheumatic disease (ARD) is understudied, though previous case reports and one study have hinted at increased risk.
• Researchers used administrative health data from 2014 to 2021 to identify 34,400 patients prescribed GLP-1-RAs and 83,500 patients prescribed SGLT2 inhibitors.
• They compared patients prescribed GLP-1-RAs or SGLT2 inhibitors with 68,400 patients prescribed DPP-4 inhibitors, which previous studies suggest do not increase ARD risk.
• Primary outcome was ARD incidence, defined by diagnostic codes.

TAKEAWAY:

• There were no significant differences in incident ARDs between the three groups.
• Mean follow-up time was 0.88-1.53 years.
• The hazard ratio (HR) for developing ARDs with GLP-1-RAs exposure was 0.93 (95% CI, 0.66-1.30) compared with DPP-4 inhibitors.
• The HR for developing ARDs with SGLT2 inhibitor exposure was 0.97 (95% CI, 0.76-1.24).

IN PRACTICE: 

“Extended longitudinal data are needed to assess risk and benefit with longer-term exposure,” the authors wrote.

SOURCE: 

First author Derin Karacabeyli, MD, of the University of British Columbia, Vancouver, Canada, presented the study in abstract form at the Canadian Rheumatology Association (CRA) 2024 Annual Meeting in Winnipeg on February 29.

LIMITATIONS: 

The study was observational, which could have some residual or unmeasured confounding of data. The researchers relied on diagnostic codes and the average follow-up time was short. 

DISCLOSURES:

The study was funded by the Canadian Institutes of Health Research. The authors had no disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

Children treated with silver diamine fluoride (SDF) had outcomes similar to those who received sealants and atraumatic restoration (ART), according to findings from a new study published in JAMA Pediatrics

METHODOLOGY:

• School programs for dental sealants were first proposed as a way to reduce health inequities, but the technique is too expensive to be widely used.
• Silver diamine fluoride has antimicrobial properties that remineralize the teeth and is a cost-effective alternative to dental sealants.
• The trial included 4100 children from low-income and/or minority groups in New York City, who were aged between 5 to 13 years.
• Between 2018 and 2023, students exhibiting early tooth decay were randomized to receive either SDF or sealants and ART.
• Researchers compared the rates of new cavities and fillings between the two groups over time.

TAKEAWAY:

• Overall, the odds of developing dental cavities decreased by around 20% in both treatment groups.
• The prevalence of cavities among children treated with SDF was 10.2 per 1000 tooth-years compared with 9.8 per 1000 in the sealant and ART group.
• The difference in students who had no new cavities or fillings between the two groups was minimal, ranging from −0.001 to 0.031.
• Children who received SDF from a nurse had outcomes similar to those who were treated by a dental hygienist (odds ratio, 0.89; 95% CI, 0.67-1.19).

IN PRACTICE:

“Research indicates that treatment of early childhood caries using SDF by physicians in primary care settings is both feasible and acceptable…we conclude that SDF is an effective alternative for community-based prevention that may help address these existing barriers.”

SOURCE:

The study was funded by the Patient-Centered Outcomes Research Institute (PCORI). It was led by Ryan Richard Ruff, PhD, MPH, associate professor in the Department of Epidemiology & Health Promotion at New York University College of Dentistry, New York.

LIMITATIONS:

The authors reported that youth may have received dental care outside of the study, which could have influenced the results. To account for that risk, they identified students who received outside care. In addition, > 3000 students were not included in the final analysis due to attrition. 

DISCLOSURES:

Authors reported receiving grants from the National Institute on Minority Health and Health Disparities, the PCORI, and the National Institutes of Health. Richard Niederman, DMD, reported nonfinancial support from Colgate, GC America, and Elevate Oral Care and consulting fees from Delta Dental Washington outside the submitted work.

A version of this article appeared on Medscape.com.

TOPLINE:

Children treated with silver diamine fluoride (SDF) had outcomes similar to those who received sealants and atraumatic restoration (ART), according to findings from a new study published in JAMA Pediatrics

METHODOLOGY:

• School programs for dental sealants were first proposed as a way to reduce health inequities, but the technique is too expensive to be widely used.
• Silver diamine fluoride has antimicrobial properties that remineralize the teeth and is a cost-effective alternative to dental sealants.
• The trial included 4100 children from low-income and/or minority groups in New York City, who were aged between 5 to 13 years.
• Between 2018 and 2023, students exhibiting early tooth decay were randomized to receive either SDF or sealants and ART.
• Researchers compared the rates of new cavities and fillings between the two groups over time.

TAKEAWAY:

• Overall, the odds of developing dental cavities decreased by around 20% in both treatment groups.
• The prevalence of cavities among children treated with SDF was 10.2 per 1000 tooth-years compared with 9.8 per 1000 in the sealant and ART group.
• The difference in students who had no new cavities or fillings between the two groups was minimal, ranging from −0.001 to 0.031.
• Children who received SDF from a nurse had outcomes similar to those who were treated by a dental hygienist (odds ratio, 0.89; 95% CI, 0.67-1.19).

IN PRACTICE:

“Research indicates that treatment of early childhood caries using SDF by physicians in primary care settings is both feasible and acceptable…we conclude that SDF is an effective alternative for community-based prevention that may help address these existing barriers.”

SOURCE:

The study was funded by the Patient-Centered Outcomes Research Institute (PCORI). It was led by Ryan Richard Ruff, PhD, MPH, associate professor in the Department of Epidemiology & Health Promotion at New York University College of Dentistry, New York.

LIMITATIONS:

The authors reported that youth may have received dental care outside of the study, which could have influenced the results. To account for that risk, they identified students who received outside care. In addition, > 3000 students were not included in the final analysis due to attrition. 

DISCLOSURES:

Authors reported receiving grants from the National Institute on Minority Health and Health Disparities, the PCORI, and the National Institutes of Health. Richard Niederman, DMD, reported nonfinancial support from Colgate, GC America, and Elevate Oral Care and consulting fees from Delta Dental Washington outside the submitted work.

A version of this article appeared on Medscape.com.

TOPLINE:

Children treated with silver diamine fluoride (SDF) had outcomes similar to those who received sealants and atraumatic restoration (ART), according to findings from a new study published in JAMA Pediatrics

METHODOLOGY:

• School programs for dental sealants were first proposed as a way to reduce health inequities, but the technique is too expensive to be widely used.
• Silver diamine fluoride has antimicrobial properties that remineralize the teeth and is a cost-effective alternative to dental sealants.
• The trial included 4100 children from low-income and/or minority groups in New York City, who were aged between 5 to 13 years.
• Between 2018 and 2023, students exhibiting early tooth decay were randomized to receive either SDF or sealants and ART.
• Researchers compared the rates of new cavities and fillings between the two groups over time.

TAKEAWAY:

• Overall, the odds of developing dental cavities decreased by around 20% in both treatment groups.
• The prevalence of cavities among children treated with SDF was 10.2 per 1000 tooth-years compared with 9.8 per 1000 in the sealant and ART group.
• The difference in students who had no new cavities or fillings between the two groups was minimal, ranging from −0.001 to 0.031.
• Children who received SDF from a nurse had outcomes similar to those who were treated by a dental hygienist (odds ratio, 0.89; 95% CI, 0.67-1.19).

IN PRACTICE:

“Research indicates that treatment of early childhood caries using SDF by physicians in primary care settings is both feasible and acceptable…we conclude that SDF is an effective alternative for community-based prevention that may help address these existing barriers.”

SOURCE:

The study was funded by the Patient-Centered Outcomes Research Institute (PCORI). It was led by Ryan Richard Ruff, PhD, MPH, associate professor in the Department of Epidemiology & Health Promotion at New York University College of Dentistry, New York.

LIMITATIONS:

The authors reported that youth may have received dental care outside of the study, which could have influenced the results. To account for that risk, they identified students who received outside care. In addition, > 3000 students were not included in the final analysis due to attrition. 

DISCLOSURES:

Authors reported receiving grants from the National Institute on Minority Health and Health Disparities, the PCORI, and the National Institutes of Health. Richard Niederman, DMD, reported nonfinancial support from Colgate, GC America, and Elevate Oral Care and consulting fees from Delta Dental Washington outside the submitted work.

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first biosimilar to denosumab, denosumab-bddz (Wyost/Jubbonti).

The biosimilar was also granted interchangeability status, which allows pharmacists to substitute the biosimilar for the reference product without involving the prescribing clinician (according to state law). Sandoz announced the approval on March 5, 2024. The lower dosage of denosumab-bddz, marketed as Jubbonti, was also approved by Health Canada in February. 

The FDA approval “is based on robust clinical studies and accompanied by labeling with safety warnings,” according to the press release. Like the reference products Prolia and Xgeva, denosumab-bddz is approved for two indications at separate doses.

Wyost (120-mg/1.7-mL injection) is approved to:

• Prevent skeletal-related events in patients with multiple myeloma and in patients with bone metastases from solid tumors
• Treat adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity
• Treat hypercalcemia of cancer that is refractory to bisphosphonate therapy

Jubbonti (60-mg/1-mL injection) is approved to:

• Treat postmenopausal women with osteoporosis who are at high risk for fracture
• Increase bone mass in men with osteoporosis who are at high risk for fracture
• Treat glucocorticoid-induced osteoporosis in men and women who are at high risk for fracture
• Increase bone mass in men who are at high risk for fracture who are receiving androgen deprivation therapy for nonmetastatic prostate cancer
• Increase bone mass in women who are at high risk for fracture who are receiving adjuvant aromatase inhibitor therapy for breast cancer.

Both doses are contraindicated for hypocalcemia and known clinically significant hypersensitivity to denosumab products. Exposure to denosumab products during pregnancy can cause fetal harm, so women of reproductive potential should be advised to use effective contraception during therapy and for at least 5 months after the last dose of denosumab-bddz.

Sandoz did not provide information on US launch details, citing “ongoing patent litigation around these products.”

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first biosimilar to denosumab, denosumab-bddz (Wyost/Jubbonti).

The biosimilar was also granted interchangeability status, which allows pharmacists to substitute the biosimilar for the reference product without involving the prescribing clinician (according to state law). Sandoz announced the approval on March 5, 2024. The lower dosage of denosumab-bddz, marketed as Jubbonti, was also approved by Health Canada in February. 

The FDA approval “is based on robust clinical studies and accompanied by labeling with safety warnings,” according to the press release. Like the reference products Prolia and Xgeva, denosumab-bddz is approved for two indications at separate doses.

Wyost (120-mg/1.7-mL injection) is approved to:

• Prevent skeletal-related events in patients with multiple myeloma and in patients with bone metastases from solid tumors
• Treat adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity
• Treat hypercalcemia of cancer that is refractory to bisphosphonate therapy

Jubbonti (60-mg/1-mL injection) is approved to:

• Treat postmenopausal women with osteoporosis who are at high risk for fracture
• Increase bone mass in men with osteoporosis who are at high risk for fracture
• Treat glucocorticoid-induced osteoporosis in men and women who are at high risk for fracture
• Increase bone mass in men who are at high risk for fracture who are receiving androgen deprivation therapy for nonmetastatic prostate cancer
• Increase bone mass in women who are at high risk for fracture who are receiving adjuvant aromatase inhibitor therapy for breast cancer.

Both doses are contraindicated for hypocalcemia and known clinically significant hypersensitivity to denosumab products. Exposure to denosumab products during pregnancy can cause fetal harm, so women of reproductive potential should be advised to use effective contraception during therapy and for at least 5 months after the last dose of denosumab-bddz.

Sandoz did not provide information on US launch details, citing “ongoing patent litigation around these products.”

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved the first biosimilar to denosumab, denosumab-bddz (Wyost/Jubbonti).

The biosimilar was also granted interchangeability status, which allows pharmacists to substitute the biosimilar for the reference product without involving the prescribing clinician (according to state law). Sandoz announced the approval on March 5, 2024. The lower dosage of denosumab-bddz, marketed as Jubbonti, was also approved by Health Canada in February. 

The FDA approval “is based on robust clinical studies and accompanied by labeling with safety warnings,” according to the press release. Like the reference products Prolia and Xgeva, denosumab-bddz is approved for two indications at separate doses.

Wyost (120-mg/1.7-mL injection) is approved to:

• Prevent skeletal-related events in patients with multiple myeloma and in patients with bone metastases from solid tumors
• Treat adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity
• Treat hypercalcemia of cancer that is refractory to bisphosphonate therapy

Jubbonti (60-mg/1-mL injection) is approved to:

• Treat postmenopausal women with osteoporosis who are at high risk for fracture
• Increase bone mass in men with osteoporosis who are at high risk for fracture
• Treat glucocorticoid-induced osteoporosis in men and women who are at high risk for fracture
• Increase bone mass in men who are at high risk for fracture who are receiving androgen deprivation therapy for nonmetastatic prostate cancer
• Increase bone mass in women who are at high risk for fracture who are receiving adjuvant aromatase inhibitor therapy for breast cancer.

Both doses are contraindicated for hypocalcemia and known clinically significant hypersensitivity to denosumab products. Exposure to denosumab products during pregnancy can cause fetal harm, so women of reproductive potential should be advised to use effective contraception during therapy and for at least 5 months after the last dose of denosumab-bddz.

Sandoz did not provide information on US launch details, citing “ongoing patent litigation around these products.”

A version of this article appeared on Medscape.com.

STOCKHOLM — An artificial intelligence (AI)–assisted image-enhanced endoscopy system accurately assessed vascular healing and predicted long-term clinical relapse in patients with ulcerative colitis (UC), according to data from the study of a novel investigational tool. 

Clinical relapse was predicted in 3% of patients identified as having vascular healing in all segments compared with 23.9% in those with vascular activity (ie, one or more segments were active), reported Yasuharu Maeda, MD, gastroenterologist from Showa University Northern Yokohama Hospital, Digestive Disease Center, Yokohama, Japan.

In patients with a Mayo Endoscopic Score (MES) ≤ 1, the clinical relapse rate was 3% and 18.6% in the vascular healing and vascular active groups, respectively, he said. 

Endoscopic remission is a crucial treat-to-target goal in patients with UC, and image-enhanced endoscopy is spreading in routine practice as a way to detect inflammation and to predict outcomes, Dr. Maeda said. 

“Image-enhanced vascular findings lead to a stronger correlation with histological activities and long-term prognosis compared with white light endoscopy assessment,” he explained. “It also means that assessment can be done on-site without biopsy, pathologist effort, and associated costs; however, specialist training is required to achieve a high accuracy in outputs.” 

Dr. Maeda presented the data (Abstract OP16) at the annual congress of the European Crohn’s and Colitis Organisation.

Stratifying the Relapse Risk

Dr. Maeda and colleagues developed a novel AI-based narrow-band imaging system, training it by using 8853 images from 167 patients with UC. 

The AI system, EndoBRAIN-UC (Cybernet System Corp, Tokyo), is in use and currently adapted for only one endoscope, the Endocyto CFH290EC (Olympus EMEA, Tokyo), but for the purpose of this study, it was trained on images from five different scopes. 

“By combining narrow-band imaging and AI, we developed a system where we can differentiate between vascular activity and vascular healing. This allows us to predict relapse,” Dr. Maeda said.

In an open-label, prospective cohort study, they tested the system with the aim of assessing the efficacy of AI-identified vascular healing to stratify the relapse risk in 100 patients showing clinical remission of UC (ie, partial MES ≤ 1). 

Patient characteristics were similar between both groups with an average disease duration of 10 years. 

In the vascular healing group (n = 33), the average age was 52 years, 20% were men, 58% had extensive colitis, and 52% had a MES score of 0.

In the vascular active group (n = 67), the average age was 56 years, 32% were men, 61% had extensive colitis, and 25% had a MES score of 0.

Colonoscopy was performed using the AI system to identify mucosa as healing or active for six colorectal segments of each patient. The MES and histologic assessment for these segments were also recorded. Patients were then followed for up to 12 months and assessed for clinical relapse.

The clinical relapse rate was higher in the vascular active group than in the vascular healing group as identified by AI. 

“We only evaluated the diagnostic output of the AI but obtained white light endoscopies and biopsies for contrast studies,” Dr. Maeda noted.

They also looked at whether the endoscopist’s level of experience (ie, trainee or expert) was important but found that clinical relapse predictive values were independent of the endoscopist’s experience. 

Still in the Early Stages

AI-assisted colonoscopy work is still at an early stage , said session co-moderator, Monika Ferlitsch, MD, head of Internal Medicine Department II, gastroenterology and hepatology, Evangelical Hospital, in Vienna, Austria. 

We now have initial results, but “I suspect it will take 10-20 years for implementation into routine clinical practice,” she said. 

The best outcome for our patients is to be able to predict response to therapy and recurrence rates, “and we see this is possible now with AI. But of course, we need more clinical data to support it,” Dr. Ferlitsch said.

Dr. Maeda and Dr. Ferlitsch have declared no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — An artificial intelligence (AI)–assisted image-enhanced endoscopy system accurately assessed vascular healing and predicted long-term clinical relapse in patients with ulcerative colitis (UC), according to data from the study of a novel investigational tool. 

Clinical relapse was predicted in 3% of patients identified as having vascular healing in all segments compared with 23.9% in those with vascular activity (ie, one or more segments were active), reported Yasuharu Maeda, MD, gastroenterologist from Showa University Northern Yokohama Hospital, Digestive Disease Center, Yokohama, Japan.

In patients with a Mayo Endoscopic Score (MES) ≤ 1, the clinical relapse rate was 3% and 18.6% in the vascular healing and vascular active groups, respectively, he said. 

Endoscopic remission is a crucial treat-to-target goal in patients with UC, and image-enhanced endoscopy is spreading in routine practice as a way to detect inflammation and to predict outcomes, Dr. Maeda said. 

“Image-enhanced vascular findings lead to a stronger correlation with histological activities and long-term prognosis compared with white light endoscopy assessment,” he explained. “It also means that assessment can be done on-site without biopsy, pathologist effort, and associated costs; however, specialist training is required to achieve a high accuracy in outputs.” 

Dr. Maeda presented the data (Abstract OP16) at the annual congress of the European Crohn’s and Colitis Organisation.

Stratifying the Relapse Risk

Dr. Maeda and colleagues developed a novel AI-based narrow-band imaging system, training it by using 8853 images from 167 patients with UC. 

The AI system, EndoBRAIN-UC (Cybernet System Corp, Tokyo), is in use and currently adapted for only one endoscope, the Endocyto CFH290EC (Olympus EMEA, Tokyo), but for the purpose of this study, it was trained on images from five different scopes. 

“By combining narrow-band imaging and AI, we developed a system where we can differentiate between vascular activity and vascular healing. This allows us to predict relapse,” Dr. Maeda said.

In an open-label, prospective cohort study, they tested the system with the aim of assessing the efficacy of AI-identified vascular healing to stratify the relapse risk in 100 patients showing clinical remission of UC (ie, partial MES ≤ 1). 

Patient characteristics were similar between both groups with an average disease duration of 10 years. 

In the vascular healing group (n = 33), the average age was 52 years, 20% were men, 58% had extensive colitis, and 52% had a MES score of 0.

In the vascular active group (n = 67), the average age was 56 years, 32% were men, 61% had extensive colitis, and 25% had a MES score of 0.

Colonoscopy was performed using the AI system to identify mucosa as healing or active for six colorectal segments of each patient. The MES and histologic assessment for these segments were also recorded. Patients were then followed for up to 12 months and assessed for clinical relapse.

The clinical relapse rate was higher in the vascular active group than in the vascular healing group as identified by AI. 

“We only evaluated the diagnostic output of the AI but obtained white light endoscopies and biopsies for contrast studies,” Dr. Maeda noted.

They also looked at whether the endoscopist’s level of experience (ie, trainee or expert) was important but found that clinical relapse predictive values were independent of the endoscopist’s experience. 

Still in the Early Stages

AI-assisted colonoscopy work is still at an early stage , said session co-moderator, Monika Ferlitsch, MD, head of Internal Medicine Department II, gastroenterology and hepatology, Evangelical Hospital, in Vienna, Austria. 

We now have initial results, but “I suspect it will take 10-20 years for implementation into routine clinical practice,” she said. 

The best outcome for our patients is to be able to predict response to therapy and recurrence rates, “and we see this is possible now with AI. But of course, we need more clinical data to support it,” Dr. Ferlitsch said.

Dr. Maeda and Dr. Ferlitsch have declared no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — An artificial intelligence (AI)–assisted image-enhanced endoscopy system accurately assessed vascular healing and predicted long-term clinical relapse in patients with ulcerative colitis (UC), according to data from the study of a novel investigational tool. 

Clinical relapse was predicted in 3% of patients identified as having vascular healing in all segments compared with 23.9% in those with vascular activity (ie, one or more segments were active), reported Yasuharu Maeda, MD, gastroenterologist from Showa University Northern Yokohama Hospital, Digestive Disease Center, Yokohama, Japan.

In patients with a Mayo Endoscopic Score (MES) ≤ 1, the clinical relapse rate was 3% and 18.6% in the vascular healing and vascular active groups, respectively, he said. 

Endoscopic remission is a crucial treat-to-target goal in patients with UC, and image-enhanced endoscopy is spreading in routine practice as a way to detect inflammation and to predict outcomes, Dr. Maeda said. 

“Image-enhanced vascular findings lead to a stronger correlation with histological activities and long-term prognosis compared with white light endoscopy assessment,” he explained. “It also means that assessment can be done on-site without biopsy, pathologist effort, and associated costs; however, specialist training is required to achieve a high accuracy in outputs.” 

Dr. Maeda presented the data (Abstract OP16) at the annual congress of the European Crohn’s and Colitis Organisation.

Stratifying the Relapse Risk

Dr. Maeda and colleagues developed a novel AI-based narrow-band imaging system, training it by using 8853 images from 167 patients with UC. 

The AI system, EndoBRAIN-UC (Cybernet System Corp, Tokyo), is in use and currently adapted for only one endoscope, the Endocyto CFH290EC (Olympus EMEA, Tokyo), but for the purpose of this study, it was trained on images from five different scopes. 

“By combining narrow-band imaging and AI, we developed a system where we can differentiate between vascular activity and vascular healing. This allows us to predict relapse,” Dr. Maeda said.

In an open-label, prospective cohort study, they tested the system with the aim of assessing the efficacy of AI-identified vascular healing to stratify the relapse risk in 100 patients showing clinical remission of UC (ie, partial MES ≤ 1). 

Patient characteristics were similar between both groups with an average disease duration of 10 years. 

In the vascular healing group (n = 33), the average age was 52 years, 20% were men, 58% had extensive colitis, and 52% had a MES score of 0.

In the vascular active group (n = 67), the average age was 56 years, 32% were men, 61% had extensive colitis, and 25% had a MES score of 0.

Colonoscopy was performed using the AI system to identify mucosa as healing or active for six colorectal segments of each patient. The MES and histologic assessment for these segments were also recorded. Patients were then followed for up to 12 months and assessed for clinical relapse.

The clinical relapse rate was higher in the vascular active group than in the vascular healing group as identified by AI. 

“We only evaluated the diagnostic output of the AI but obtained white light endoscopies and biopsies for contrast studies,” Dr. Maeda noted.

They also looked at whether the endoscopist’s level of experience (ie, trainee or expert) was important but found that clinical relapse predictive values were independent of the endoscopist’s experience. 

Still in the Early Stages

AI-assisted colonoscopy work is still at an early stage , said session co-moderator, Monika Ferlitsch, MD, head of Internal Medicine Department II, gastroenterology and hepatology, Evangelical Hospital, in Vienna, Austria. 

We now have initial results, but “I suspect it will take 10-20 years for implementation into routine clinical practice,” she said. 

The best outcome for our patients is to be able to predict response to therapy and recurrence rates, “and we see this is possible now with AI. But of course, we need more clinical data to support it,” Dr. Ferlitsch said.

Dr. Maeda and Dr. Ferlitsch have declared no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Eight live bacterial strains have been identified as having the potential to regulate the inflammatory imbalance in the gut microbiome of patients with mild to moderate ulcerative colitis (UC). 

The eight-strain live biotherapeutic product (MB310, Microbiotica) is due to enter its first clinical trial later this year.

In patients with UC who showed clinical benefit after fecal microbiota transplantation (FMT), these eight specific bacterial strains were shown to be consistently elevated, reported Ron Carter, MD, chief medical officer at Microbiotica, Cambridge, UK, the company developing the product. 

In addition, “in lab studies, we’ve found they exhibit anti-inflammatory effects when incubated with different cells of the immune system,” he explained. With the biotherapeutic product, “we want to prompt the immune system to realign the gut inflammation” in UC.

On February 23, at the annual congress of the European Crohn’s and Colitis Organisation, Dr. Carter presented the work-to-date and the near-term plans for a phase 1b randomized, placebo-controlled, double-blind trial to be conducted across roughly 20 sites in Europe (Abstract DOP 67). The trial, COMPOSER-1, will investigate the engraftment and initial signs of clinical activity of MB310 in 30 patients with active, mild to moderate UC (modified Mayo score 4-7; endoscopic subscore ≥ 2).

 Calming Inflammation With Specific Bacteria 

To date, the researchers have focused on identifying bacterial species that correlate with clinical outcomes in individual patients with UC after treatment with FMT. Dr. Carter and colleagues worked in collaboration with Sam Costello, MBBS, gastroenterologist at The Queen Elizabeth Hospital in Adelaide, Australia.

The initial research involved analyzing stool samples from a round 70 patients diagnosed with mild to moderate UC, who were randomly assigned to receive either pooled, anaerobically prepared, healthy donor FMT, or their own autologous FMT as a comparative control. FMT was delivered via colonoscopy and two enemas over 7 days. The primary endpoint of the study was achieving steroid-free remission of UC on the basis of specific Mayo scores, at the end of week 8.

“Results indicated that the group receiving the pooled donor FMT showed a 32% success rate with respect to the primary outcome compared with only 9% of the control group,” said Dr. Carter. “This suggested a promising therapeutic strategy.”

Based on these outcomes, Microbiotica then decided to conduct a local study in which they analyzed fecal samples from FMT donors and from pre-FMT and post-FMT recipients in order to precisely identify which bacterial species were associated with clinical response. 

“With our precision microbiome analysis platform, we determined eight bacterial species that were consistently elevated in FMT responders, but absent or not elevated in non-responders,” reported Dr. Carter.

Next, they carried out subspecies-level bioinformatic analysis and identified one bacterial strain from each of the eight species, which were then cultured individually, freeze-dried, and combined into a custom delayed-release capsule. 

The researchers tested the resulting live biotherapeutic product in cellular assays using human cell lines to confirm that they effectively modulated immune functions. 

The cellular assays showed that in epithelial cell monolayer tests, MB310 not only enhanced barrier integrity but also protected the cellular barrier from inflammation. 

The eight bacterial strain combination also exhibited anti-inflammatory effects when incubated with different primary innate immune cells, dendritic cells, and M1 macrophages. 

And, Dr. Carter emphasized, the specific MB310 bacterial strains were found to regulate T-cells directly or via metabolites.

Moving in the Right Direction

Julien Kirchgesner, MD, Saint-Antoine Hospital and Sorbonne University, Paris, France, who co-moderated the session where the research was presented, welcomed the work.

“Many more trials need to be done before we see this enter the clinic, but this is moving in the right direction,” Dr. Kirchgesner noted.

“We need to find only the functionally active bacterial strains, rather than just take the fecal transplant alone [as is done with FMT],” he said. That is what is being done here.

“The researchers want to identify which bacterial strains will impact the effectiveness in patients, and to select for these strains before industrializing the process and producing them at the optimal strength, at scale,” Dr. Kirchgesner said.

Dr. Carter is chief medical officer at Microbiotica and Dr Kirshgensner has no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Eight live bacterial strains have been identified as having the potential to regulate the inflammatory imbalance in the gut microbiome of patients with mild to moderate ulcerative colitis (UC). 

The eight-strain live biotherapeutic product (MB310, Microbiotica) is due to enter its first clinical trial later this year.

In patients with UC who showed clinical benefit after fecal microbiota transplantation (FMT), these eight specific bacterial strains were shown to be consistently elevated, reported Ron Carter, MD, chief medical officer at Microbiotica, Cambridge, UK, the company developing the product. 

In addition, “in lab studies, we’ve found they exhibit anti-inflammatory effects when incubated with different cells of the immune system,” he explained. With the biotherapeutic product, “we want to prompt the immune system to realign the gut inflammation” in UC.

On February 23, at the annual congress of the European Crohn’s and Colitis Organisation, Dr. Carter presented the work-to-date and the near-term plans for a phase 1b randomized, placebo-controlled, double-blind trial to be conducted across roughly 20 sites in Europe (Abstract DOP 67). The trial, COMPOSER-1, will investigate the engraftment and initial signs of clinical activity of MB310 in 30 patients with active, mild to moderate UC (modified Mayo score 4-7; endoscopic subscore ≥ 2).

 Calming Inflammation With Specific Bacteria 

To date, the researchers have focused on identifying bacterial species that correlate with clinical outcomes in individual patients with UC after treatment with FMT. Dr. Carter and colleagues worked in collaboration with Sam Costello, MBBS, gastroenterologist at The Queen Elizabeth Hospital in Adelaide, Australia.

The initial research involved analyzing stool samples from a round 70 patients diagnosed with mild to moderate UC, who were randomly assigned to receive either pooled, anaerobically prepared, healthy donor FMT, or their own autologous FMT as a comparative control. FMT was delivered via colonoscopy and two enemas over 7 days. The primary endpoint of the study was achieving steroid-free remission of UC on the basis of specific Mayo scores, at the end of week 8.

“Results indicated that the group receiving the pooled donor FMT showed a 32% success rate with respect to the primary outcome compared with only 9% of the control group,” said Dr. Carter. “This suggested a promising therapeutic strategy.”

Based on these outcomes, Microbiotica then decided to conduct a local study in which they analyzed fecal samples from FMT donors and from pre-FMT and post-FMT recipients in order to precisely identify which bacterial species were associated with clinical response. 

“With our precision microbiome analysis platform, we determined eight bacterial species that were consistently elevated in FMT responders, but absent or not elevated in non-responders,” reported Dr. Carter.

Next, they carried out subspecies-level bioinformatic analysis and identified one bacterial strain from each of the eight species, which were then cultured individually, freeze-dried, and combined into a custom delayed-release capsule. 

The researchers tested the resulting live biotherapeutic product in cellular assays using human cell lines to confirm that they effectively modulated immune functions. 

The cellular assays showed that in epithelial cell monolayer tests, MB310 not only enhanced barrier integrity but also protected the cellular barrier from inflammation. 

The eight bacterial strain combination also exhibited anti-inflammatory effects when incubated with different primary innate immune cells, dendritic cells, and M1 macrophages. 

And, Dr. Carter emphasized, the specific MB310 bacterial strains were found to regulate T-cells directly or via metabolites.

Moving in the Right Direction

Julien Kirchgesner, MD, Saint-Antoine Hospital and Sorbonne University, Paris, France, who co-moderated the session where the research was presented, welcomed the work.

“Many more trials need to be done before we see this enter the clinic, but this is moving in the right direction,” Dr. Kirchgesner noted.

“We need to find only the functionally active bacterial strains, rather than just take the fecal transplant alone [as is done with FMT],” he said. That is what is being done here.

“The researchers want to identify which bacterial strains will impact the effectiveness in patients, and to select for these strains before industrializing the process and producing them at the optimal strength, at scale,” Dr. Kirchgesner said.

Dr. Carter is chief medical officer at Microbiotica and Dr Kirshgensner has no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Eight live bacterial strains have been identified as having the potential to regulate the inflammatory imbalance in the gut microbiome of patients with mild to moderate ulcerative colitis (UC). 

The eight-strain live biotherapeutic product (MB310, Microbiotica) is due to enter its first clinical trial later this year.

In patients with UC who showed clinical benefit after fecal microbiota transplantation (FMT), these eight specific bacterial strains were shown to be consistently elevated, reported Ron Carter, MD, chief medical officer at Microbiotica, Cambridge, UK, the company developing the product. 

In addition, “in lab studies, we’ve found they exhibit anti-inflammatory effects when incubated with different cells of the immune system,” he explained. With the biotherapeutic product, “we want to prompt the immune system to realign the gut inflammation” in UC.

On February 23, at the annual congress of the European Crohn’s and Colitis Organisation, Dr. Carter presented the work-to-date and the near-term plans for a phase 1b randomized, placebo-controlled, double-blind trial to be conducted across roughly 20 sites in Europe (Abstract DOP 67). The trial, COMPOSER-1, will investigate the engraftment and initial signs of clinical activity of MB310 in 30 patients with active, mild to moderate UC (modified Mayo score 4-7; endoscopic subscore ≥ 2).

 Calming Inflammation With Specific Bacteria 

To date, the researchers have focused on identifying bacterial species that correlate with clinical outcomes in individual patients with UC after treatment with FMT. Dr. Carter and colleagues worked in collaboration with Sam Costello, MBBS, gastroenterologist at The Queen Elizabeth Hospital in Adelaide, Australia.

The initial research involved analyzing stool samples from a round 70 patients diagnosed with mild to moderate UC, who were randomly assigned to receive either pooled, anaerobically prepared, healthy donor FMT, or their own autologous FMT as a comparative control. FMT was delivered via colonoscopy and two enemas over 7 days. The primary endpoint of the study was achieving steroid-free remission of UC on the basis of specific Mayo scores, at the end of week 8.

“Results indicated that the group receiving the pooled donor FMT showed a 32% success rate with respect to the primary outcome compared with only 9% of the control group,” said Dr. Carter. “This suggested a promising therapeutic strategy.”

Based on these outcomes, Microbiotica then decided to conduct a local study in which they analyzed fecal samples from FMT donors and from pre-FMT and post-FMT recipients in order to precisely identify which bacterial species were associated with clinical response. 

“With our precision microbiome analysis platform, we determined eight bacterial species that were consistently elevated in FMT responders, but absent or not elevated in non-responders,” reported Dr. Carter.

Next, they carried out subspecies-level bioinformatic analysis and identified one bacterial strain from each of the eight species, which were then cultured individually, freeze-dried, and combined into a custom delayed-release capsule. 

The researchers tested the resulting live biotherapeutic product in cellular assays using human cell lines to confirm that they effectively modulated immune functions. 

The cellular assays showed that in epithelial cell monolayer tests, MB310 not only enhanced barrier integrity but also protected the cellular barrier from inflammation. 

The eight bacterial strain combination also exhibited anti-inflammatory effects when incubated with different primary innate immune cells, dendritic cells, and M1 macrophages. 

And, Dr. Carter emphasized, the specific MB310 bacterial strains were found to regulate T-cells directly or via metabolites.

Moving in the Right Direction

Julien Kirchgesner, MD, Saint-Antoine Hospital and Sorbonne University, Paris, France, who co-moderated the session where the research was presented, welcomed the work.

“Many more trials need to be done before we see this enter the clinic, but this is moving in the right direction,” Dr. Kirchgesner noted.

“We need to find only the functionally active bacterial strains, rather than just take the fecal transplant alone [as is done with FMT],” he said. That is what is being done here.

“The researchers want to identify which bacterial strains will impact the effectiveness in patients, and to select for these strains before industrializing the process and producing them at the optimal strength, at scale,” Dr. Kirchgesner said.

Dr. Carter is chief medical officer at Microbiotica and Dr Kirshgensner has no financial disclosures.

A version of this article appeared on Medscape.com.

Do I deserve to be here? Am I doing what I’m supposed to be doing? Is anyone going to tell me if I’m terrible?

Kerri Palamara McGrath, MD, remembered worrying over these questions as chief resident at Massachusetts General Hospital, Boston, Massachusetts, in 2009. Having graduated from New York Medical College, she felt out of step with her peers from Ivy League medical schools and considered herself lucky to be there. In order to measure up, she felt she had to work twice as hard as everybody else.

But as Dr. McGrath moved through residency and spoke with other trainees, she had a realization. Her constant fears, the nagging voice in her head saying she wasn’t good enough, these issues weren’t exclusive to her; they were pervasive.

Today, Dr. McGrath is the director of the Center for Physician Well-Being at Massachusetts General Hospital. The facility aims to address physician stress and equip doctors with the tools to navigate personal and professional issues. Dr. McGrath is also a physician coach, a growing nonclinical field, helping doctors identify their own stressors, values, and measures of success. This type of internal work, Dr. McGrath feels, can help alleviate imposter syndrome, that inner refrain saying: I’ll never be good enough.

What Is Imposter Syndrome?

While not a formal medical diagnosis, imposter syndrome has been defined as «an internal experience of intellectual phoniness.» It›s considered an inability to internalize success and a tendency to attribute gains to external factors — for example, being in the right place at the right time.

“Many people describe imposter phenomena in medicine as fearing that others are going to realize that they don’t belong somewhere or question why they’re there,” said Dr. McGrath.

It’s a “fear of being found out,” added Jessi Gold, MD, a psychiatrist who treats physicians. “In many ways, imposter syndrome shows up as a conflict between the outer self — the metaphorical mask you’re ‘putting on’ [in order] to achieve, and the inner self — how you feel like you’re not measuring up.”

Dr. McGrath said she experienced imposter syndrome before her medical career even began. She applied to 26 medical schools. Only one accepted her. “The whole time, I was like, ‘This is the only school you got into, so you’re obviously not good enough,’” she recalled. Later, having been chosen by a “coveted” institution like Mass General, “you assume that, at some point, someone will realize that the gig is up, that everybody’s better than you.”

Where Does Imposter Syndrome Come From?

Dr. McGrath felt that in medicine, high expectations are often coupled with low self-compassion. “We are so hard on ourselves, and when we set our expectations so high, we’re constantly disappointed in ourselves,” she said. External markers of success — papers published, promotions, or even social media — can further fuel this.

It can feel like “striving for excellence in a sea of excellence,” Dr. McGrath added, and this can invite comparison.

Ravi Parikh, MD, a medical oncologist and physician-scientist at the University of Pennsylvania, Philadelphia, Pennsylvania, remembered struggling with imposter syndrome early in his career. As a new doctor, he had a ton of questions, and yet those above him seemed able to make weighty decisions on their own. The comparison shook his confidence. “I remember thinking that when I became an attending, I would just magically not have to run decisions by people,” said Dr. Parikh. But even then, the “magical” self-assurance didn’t materialize.

Research found that imposter syndrome is more likely to affect women and groups that are underrepresented in medicine. But overall, the incidence is remarkably high.

A 2023 survey published in the Journal of the American College of Surgeons found that 90% of female surgeons and more than two-thirds of male ones experienced imposter syndrome. In a 2023 study on medical students in JAMA, it was nearly universal; 97% reported feelings of imposter syndrome with women 1.7 times more likely to report it than men and underrepresented groups often three times more likely.

‘I’m Clearly in the Minority Here’

The term “imposter” also suggests a lack of belonging. If medicine doesn’t “look like you,” this can create feelings of pressure, like you’re “representing a whole group with your mere existence,” said Dr. Gold, “and you have to keep proving yourself.”

Chloe Slocum, MD, MPH, an assistant professor of physical medicine and rehabilitation at Harvard Medical School, Boston, Massachusetts, remembered that feeling of conspicuous “otherness.” As a resident, Dr. Slocum began presenting at national meetings and later pursued physician leadership training. Many of her counterparts at these events were older males. “At some programs early on, I’d wonder, ‘I’m clearly in the minority here; did they really make the right decision including me in this?’”

Reactions from those around you can also have an impact. Dr. McGrath — who is 5’ 2” and describes herself as looking “very young” — noted that when she started out, neither patients nor other providers thought she was a doctor.

“I have tried everything in the book to be seen, in somebody else’s eyes, as more consistent with a doctor,” she said. “I’ve dressed down. I’ve dressed up. I’ve worn heels. I’ve worn flats. I’ve worn glasses. I’ve done all the things. When you’re constantly being told you don’t look like a doctor, you start questioning yourself.”

The Emotional Toll

If that sounds mentally exhausting, it is. Research found that imposter syndrome is often linked with burnout, depression, and anxiety.

The need to prove yourself and prevent being “found out” can push some doctors toward traditional measurements of success — promotions or published work, said Dr. Gold. But “if you’re trying to achieve in ways that you don’t value,” she warned, “you’re going to burn out.”

On the other hand, intense self-doubt can also limit advancement. After all, if you don’t think you’re good enough, you may not apply for job opportunities or leadership positions.

This mental burden can persist over years and even decades. A 2020 review of studies on imposter syndrome noted that “it would be reassuring to believe that imposter symptoms decline with age.” Unfortunately, several studies indicated that they do not.

How to Manage Imposter Syndrome

While it can be difficult to overcome imposter syndrome, there are ways to work through it and make it less pervasive or intense. Here are some tips from our experts:

• Prioritize your mental health. This can be difficult for some physicians, but don’t ignore symptoms of depression, anxiety, or burnout. Untreated mental health conditions cloud the ability to reflect on some of the existential questions that will help you navigate imposter syndrome, said Dr. Gold.
• Assess how often you need validation and why. Try to identify what you›re feeling, what needs aren›t being met, and how you can meet those needs. You can then consider where to get that validation either internally or by connecting with a colleague. Dr. McGrath encourages physicians to ask, “What does success look like for me?” and can you make success more personal and meaningful. It might sound shocking, but rather than an unattainable ideal, success should be something that feels good.
• Know the power of teamwork. As Dr. Parikh eventually realized, collaborative care is a common and beneficial part of medicine — not something that makes you a less-than physician. “There’s a lot of opportunity to crowdsource the medical decision-making process in ways that increase your own confidence as a doctor,” he said.
• Practice self-compassion. Critical voices in your head add to an already hard and stressful world. This is where self-compassion comes in. “We don’t have much control over medicine, but we have control over how medicine makes us feel,” Dr. Gold said. Imagine treating yourself how you would treat a friend.
• Consider a physician coach.  suggests that physician coaches can help lower rates of burnout and improve well-being, resilience, professional fulfillment, and self-worth. “Coaching looks into the future to help you envision what things would look like if you were feeling differently. It helps you explore what’s in your control and how you want to shape that,” said Dr. McGrath.
• Amplify the good. Apps and web-based tools can remind you to celebrate your own achievements. The “” exercise created by J. Bryan Sexton, PhD, at the Duke Center for Healthcare Safety & Quality for example, was documented in a . When healthcare workers reflected on three good things that happened each day for 2 weeks, they reported significant improvements in depression, burnout, and work-life balance.
• Do a values check. Dr. Gold often suggested that physicians with imposter syndrome ask themselves what they value, what medicine values, and how the two line up. Pausing to consider this can guide you toward useful strategies. If you value family life but feel like medicine doesn’t, for example, you might talk with a colleague who has navigated this conflict.

Dr. Gold added that reminding yourself of the range of options can be freeing. “There’s no ‘one career’ in medicine,” she said. “There are multiple ways to be happy in medicine; there are multiple ways to be happy outside of medicine. And you’re not a failure for the path you choose.”

A version of this article appeared on Medscape.com.

Do I deserve to be here? Am I doing what I’m supposed to be doing? Is anyone going to tell me if I’m terrible?

Kerri Palamara McGrath, MD, remembered worrying over these questions as chief resident at Massachusetts General Hospital, Boston, Massachusetts, in 2009. Having graduated from New York Medical College, she felt out of step with her peers from Ivy League medical schools and considered herself lucky to be there. In order to measure up, she felt she had to work twice as hard as everybody else.

But as Dr. McGrath moved through residency and spoke with other trainees, she had a realization. Her constant fears, the nagging voice in her head saying she wasn’t good enough, these issues weren’t exclusive to her; they were pervasive.

Today, Dr. McGrath is the director of the Center for Physician Well-Being at Massachusetts General Hospital. The facility aims to address physician stress and equip doctors with the tools to navigate personal and professional issues. Dr. McGrath is also a physician coach, a growing nonclinical field, helping doctors identify their own stressors, values, and measures of success. This type of internal work, Dr. McGrath feels, can help alleviate imposter syndrome, that inner refrain saying: I’ll never be good enough.

What Is Imposter Syndrome?

While not a formal medical diagnosis, imposter syndrome has been defined as «an internal experience of intellectual phoniness.» It›s considered an inability to internalize success and a tendency to attribute gains to external factors — for example, being in the right place at the right time.

“Many people describe imposter phenomena in medicine as fearing that others are going to realize that they don’t belong somewhere or question why they’re there,” said Dr. McGrath.

It’s a “fear of being found out,” added Jessi Gold, MD, a psychiatrist who treats physicians. “In many ways, imposter syndrome shows up as a conflict between the outer self — the metaphorical mask you’re ‘putting on’ [in order] to achieve, and the inner self — how you feel like you’re not measuring up.”

Dr. McGrath said she experienced imposter syndrome before her medical career even began. She applied to 26 medical schools. Only one accepted her. “The whole time, I was like, ‘This is the only school you got into, so you’re obviously not good enough,’” she recalled. Later, having been chosen by a “coveted” institution like Mass General, “you assume that, at some point, someone will realize that the gig is up, that everybody’s better than you.”

Where Does Imposter Syndrome Come From?

Dr. McGrath felt that in medicine, high expectations are often coupled with low self-compassion. “We are so hard on ourselves, and when we set our expectations so high, we’re constantly disappointed in ourselves,” she said. External markers of success — papers published, promotions, or even social media — can further fuel this.

It can feel like “striving for excellence in a sea of excellence,” Dr. McGrath added, and this can invite comparison.

Ravi Parikh, MD, a medical oncologist and physician-scientist at the University of Pennsylvania, Philadelphia, Pennsylvania, remembered struggling with imposter syndrome early in his career. As a new doctor, he had a ton of questions, and yet those above him seemed able to make weighty decisions on their own. The comparison shook his confidence. “I remember thinking that when I became an attending, I would just magically not have to run decisions by people,” said Dr. Parikh. But even then, the “magical” self-assurance didn’t materialize.

Research found that imposter syndrome is more likely to affect women and groups that are underrepresented in medicine. But overall, the incidence is remarkably high.

A 2023 survey published in the Journal of the American College of Surgeons found that 90% of female surgeons and more than two-thirds of male ones experienced imposter syndrome. In a 2023 study on medical students in JAMA, it was nearly universal; 97% reported feelings of imposter syndrome with women 1.7 times more likely to report it than men and underrepresented groups often three times more likely.

‘I’m Clearly in the Minority Here’

The term “imposter” also suggests a lack of belonging. If medicine doesn’t “look like you,” this can create feelings of pressure, like you’re “representing a whole group with your mere existence,” said Dr. Gold, “and you have to keep proving yourself.”

Chloe Slocum, MD, MPH, an assistant professor of physical medicine and rehabilitation at Harvard Medical School, Boston, Massachusetts, remembered that feeling of conspicuous “otherness.” As a resident, Dr. Slocum began presenting at national meetings and later pursued physician leadership training. Many of her counterparts at these events were older males. “At some programs early on, I’d wonder, ‘I’m clearly in the minority here; did they really make the right decision including me in this?’”

Reactions from those around you can also have an impact. Dr. McGrath — who is 5’ 2” and describes herself as looking “very young” — noted that when she started out, neither patients nor other providers thought she was a doctor.

“I have tried everything in the book to be seen, in somebody else’s eyes, as more consistent with a doctor,” she said. “I’ve dressed down. I’ve dressed up. I’ve worn heels. I’ve worn flats. I’ve worn glasses. I’ve done all the things. When you’re constantly being told you don’t look like a doctor, you start questioning yourself.”

The Emotional Toll

If that sounds mentally exhausting, it is. Research found that imposter syndrome is often linked with burnout, depression, and anxiety.

The need to prove yourself and prevent being “found out” can push some doctors toward traditional measurements of success — promotions or published work, said Dr. Gold. But “if you’re trying to achieve in ways that you don’t value,” she warned, “you’re going to burn out.”

On the other hand, intense self-doubt can also limit advancement. After all, if you don’t think you’re good enough, you may not apply for job opportunities or leadership positions.

This mental burden can persist over years and even decades. A 2020 review of studies on imposter syndrome noted that “it would be reassuring to believe that imposter symptoms decline with age.” Unfortunately, several studies indicated that they do not.

How to Manage Imposter Syndrome

While it can be difficult to overcome imposter syndrome, there are ways to work through it and make it less pervasive or intense. Here are some tips from our experts:

• Prioritize your mental health. This can be difficult for some physicians, but don’t ignore symptoms of depression, anxiety, or burnout. Untreated mental health conditions cloud the ability to reflect on some of the existential questions that will help you navigate imposter syndrome, said Dr. Gold.
• Assess how often you need validation and why. Try to identify what you›re feeling, what needs aren›t being met, and how you can meet those needs. You can then consider where to get that validation either internally or by connecting with a colleague. Dr. McGrath encourages physicians to ask, “What does success look like for me?” and can you make success more personal and meaningful. It might sound shocking, but rather than an unattainable ideal, success should be something that feels good.
• Know the power of teamwork. As Dr. Parikh eventually realized, collaborative care is a common and beneficial part of medicine — not something that makes you a less-than physician. “There’s a lot of opportunity to crowdsource the medical decision-making process in ways that increase your own confidence as a doctor,” he said.
• Practice self-compassion. Critical voices in your head add to an already hard and stressful world. This is where self-compassion comes in. “We don’t have much control over medicine, but we have control over how medicine makes us feel,” Dr. Gold said. Imagine treating yourself how you would treat a friend.
• Consider a physician coach.  suggests that physician coaches can help lower rates of burnout and improve well-being, resilience, professional fulfillment, and self-worth. “Coaching looks into the future to help you envision what things would look like if you were feeling differently. It helps you explore what’s in your control and how you want to shape that,” said Dr. McGrath.
• Amplify the good. Apps and web-based tools can remind you to celebrate your own achievements. The “” exercise created by J. Bryan Sexton, PhD, at the Duke Center for Healthcare Safety & Quality for example, was documented in a . When healthcare workers reflected on three good things that happened each day for 2 weeks, they reported significant improvements in depression, burnout, and work-life balance.
• Do a values check. Dr. Gold often suggested that physicians with imposter syndrome ask themselves what they value, what medicine values, and how the two line up. Pausing to consider this can guide you toward useful strategies. If you value family life but feel like medicine doesn’t, for example, you might talk with a colleague who has navigated this conflict.

Dr. Gold added that reminding yourself of the range of options can be freeing. “There’s no ‘one career’ in medicine,” she said. “There are multiple ways to be happy in medicine; there are multiple ways to be happy outside of medicine. And you’re not a failure for the path you choose.”

A version of this article appeared on Medscape.com.

Do I deserve to be here? Am I doing what I’m supposed to be doing? Is anyone going to tell me if I’m terrible?

Kerri Palamara McGrath, MD, remembered worrying over these questions as chief resident at Massachusetts General Hospital, Boston, Massachusetts, in 2009. Having graduated from New York Medical College, she felt out of step with her peers from Ivy League medical schools and considered herself lucky to be there. In order to measure up, she felt she had to work twice as hard as everybody else.

But as Dr. McGrath moved through residency and spoke with other trainees, she had a realization. Her constant fears, the nagging voice in her head saying she wasn’t good enough, these issues weren’t exclusive to her; they were pervasive.

Today, Dr. McGrath is the director of the Center for Physician Well-Being at Massachusetts General Hospital. The facility aims to address physician stress and equip doctors with the tools to navigate personal and professional issues. Dr. McGrath is also a physician coach, a growing nonclinical field, helping doctors identify their own stressors, values, and measures of success. This type of internal work, Dr. McGrath feels, can help alleviate imposter syndrome, that inner refrain saying: I’ll never be good enough.

What Is Imposter Syndrome?

While not a formal medical diagnosis, imposter syndrome has been defined as «an internal experience of intellectual phoniness.» It›s considered an inability to internalize success and a tendency to attribute gains to external factors — for example, being in the right place at the right time.

“Many people describe imposter phenomena in medicine as fearing that others are going to realize that they don’t belong somewhere or question why they’re there,” said Dr. McGrath.

It’s a “fear of being found out,” added Jessi Gold, MD, a psychiatrist who treats physicians. “In many ways, imposter syndrome shows up as a conflict between the outer self — the metaphorical mask you’re ‘putting on’ [in order] to achieve, and the inner self — how you feel like you’re not measuring up.”

Dr. McGrath said she experienced imposter syndrome before her medical career even began. She applied to 26 medical schools. Only one accepted her. “The whole time, I was like, ‘This is the only school you got into, so you’re obviously not good enough,’” she recalled. Later, having been chosen by a “coveted” institution like Mass General, “you assume that, at some point, someone will realize that the gig is up, that everybody’s better than you.”

Where Does Imposter Syndrome Come From?

Dr. McGrath felt that in medicine, high expectations are often coupled with low self-compassion. “We are so hard on ourselves, and when we set our expectations so high, we’re constantly disappointed in ourselves,” she said. External markers of success — papers published, promotions, or even social media — can further fuel this.

It can feel like “striving for excellence in a sea of excellence,” Dr. McGrath added, and this can invite comparison.

Ravi Parikh, MD, a medical oncologist and physician-scientist at the University of Pennsylvania, Philadelphia, Pennsylvania, remembered struggling with imposter syndrome early in his career. As a new doctor, he had a ton of questions, and yet those above him seemed able to make weighty decisions on their own. The comparison shook his confidence. “I remember thinking that when I became an attending, I would just magically not have to run decisions by people,” said Dr. Parikh. But even then, the “magical” self-assurance didn’t materialize.

Research found that imposter syndrome is more likely to affect women and groups that are underrepresented in medicine. But overall, the incidence is remarkably high.

A 2023 survey published in the Journal of the American College of Surgeons found that 90% of female surgeons and more than two-thirds of male ones experienced imposter syndrome. In a 2023 study on medical students in JAMA, it was nearly universal; 97% reported feelings of imposter syndrome with women 1.7 times more likely to report it than men and underrepresented groups often three times more likely.

‘I’m Clearly in the Minority Here’

The term “imposter” also suggests a lack of belonging. If medicine doesn’t “look like you,” this can create feelings of pressure, like you’re “representing a whole group with your mere existence,” said Dr. Gold, “and you have to keep proving yourself.”

Chloe Slocum, MD, MPH, an assistant professor of physical medicine and rehabilitation at Harvard Medical School, Boston, Massachusetts, remembered that feeling of conspicuous “otherness.” As a resident, Dr. Slocum began presenting at national meetings and later pursued physician leadership training. Many of her counterparts at these events were older males. “At some programs early on, I’d wonder, ‘I’m clearly in the minority here; did they really make the right decision including me in this?’”

Reactions from those around you can also have an impact. Dr. McGrath — who is 5’ 2” and describes herself as looking “very young” — noted that when she started out, neither patients nor other providers thought she was a doctor.

“I have tried everything in the book to be seen, in somebody else’s eyes, as more consistent with a doctor,” she said. “I’ve dressed down. I’ve dressed up. I’ve worn heels. I’ve worn flats. I’ve worn glasses. I’ve done all the things. When you’re constantly being told you don’t look like a doctor, you start questioning yourself.”

The Emotional Toll

If that sounds mentally exhausting, it is. Research found that imposter syndrome is often linked with burnout, depression, and anxiety.

The need to prove yourself and prevent being “found out” can push some doctors toward traditional measurements of success — promotions or published work, said Dr. Gold. But “if you’re trying to achieve in ways that you don’t value,” she warned, “you’re going to burn out.”

On the other hand, intense self-doubt can also limit advancement. After all, if you don’t think you’re good enough, you may not apply for job opportunities or leadership positions.

This mental burden can persist over years and even decades. A 2020 review of studies on imposter syndrome noted that “it would be reassuring to believe that imposter symptoms decline with age.” Unfortunately, several studies indicated that they do not.

How to Manage Imposter Syndrome

While it can be difficult to overcome imposter syndrome, there are ways to work through it and make it less pervasive or intense. Here are some tips from our experts:

• Prioritize your mental health. This can be difficult for some physicians, but don’t ignore symptoms of depression, anxiety, or burnout. Untreated mental health conditions cloud the ability to reflect on some of the existential questions that will help you navigate imposter syndrome, said Dr. Gold.
• Assess how often you need validation and why. Try to identify what you›re feeling, what needs aren›t being met, and how you can meet those needs. You can then consider where to get that validation either internally or by connecting with a colleague. Dr. McGrath encourages physicians to ask, “What does success look like for me?” and can you make success more personal and meaningful. It might sound shocking, but rather than an unattainable ideal, success should be something that feels good.
• Know the power of teamwork. As Dr. Parikh eventually realized, collaborative care is a common and beneficial part of medicine — not something that makes you a less-than physician. “There’s a lot of opportunity to crowdsource the medical decision-making process in ways that increase your own confidence as a doctor,” he said.
• Practice self-compassion. Critical voices in your head add to an already hard and stressful world. This is where self-compassion comes in. “We don’t have much control over medicine, but we have control over how medicine makes us feel,” Dr. Gold said. Imagine treating yourself how you would treat a friend.
• Consider a physician coach.  suggests that physician coaches can help lower rates of burnout and improve well-being, resilience, professional fulfillment, and self-worth. “Coaching looks into the future to help you envision what things would look like if you were feeling differently. It helps you explore what’s in your control and how you want to shape that,” said Dr. McGrath.
• Amplify the good. Apps and web-based tools can remind you to celebrate your own achievements. The “” exercise created by J. Bryan Sexton, PhD, at the Duke Center for Healthcare Safety & Quality for example, was documented in a . When healthcare workers reflected on three good things that happened each day for 2 weeks, they reported significant improvements in depression, burnout, and work-life balance.
• Do a values check. Dr. Gold often suggested that physicians with imposter syndrome ask themselves what they value, what medicine values, and how the two line up. Pausing to consider this can guide you toward useful strategies. If you value family life but feel like medicine doesn’t, for example, you might talk with a colleague who has navigated this conflict.

Dr. Gold added that reminding yourself of the range of options can be freeing. “There’s no ‘one career’ in medicine,” she said. “There are multiple ways to be happy in medicine; there are multiple ways to be happy outside of medicine. And you’re not a failure for the path you choose.”

A version of this article appeared on Medscape.com.

Myasthenia gravis (MG) is a rare autoimmune neurologic disorder that occurs when the transmission between nerves and muscles is disrupted. It is caused by autoantibodies against acetylcholine receptors (AChRs), which results in muscle weakness that is often fatigable and affects various muscles in the body, including those that move the eyes, eyelids, and limbs. Ocular MG affects only the muscles that move the eyes and eyelids, whereas generalized MG (gMG) affects muscles throughout the body. When MG occurs with a thymoma, it is called thymoma-associated MG and is considered a paraneoplastic disease. In severe cases of MG, patients can experience a myasthenic crisis (MC), during which respiratory muscles weaken and necessitate mechanical ventilation. Diagnosis of MG is based on clinical examination, and laboratory tests are used to confirm the diagnosis. Treatment options include cholinesterase enzyme inhibitors and immunosuppressive agents, which aim to either reduce symptoms or cause nonspecific immunosuppression, respectively, but do not target the pathogenetic autoantibodies that characterize the disease.

1. The most common age at onset of gMG is the second and third decades in women and the seventh and eighth decades in men.

MG has an annual incidence of approximately  four to 30 new cases per million population. Prevalence rates range from 150 to 200 cases per million population, and they have steadily increased over the past 50 years. This increase in prevalence is probably the result of better disease recognition, aging of the population, and an increased life span in patients.

MG can occur at any age; however, onset is more common in females in the second and third decades and is more common in males in the seventh to eighth decades. Before age 40 years, the female-to-male ratio is 3:1, and after age 50 years, the female-to-male ratio is 3:2.

2. gMG commonly weakens muscles responsible for eye movement, facial expressions, and functions such as chewing, swallowing, and speaking.

gMG typically manifests as muscle weakness that worsens with repeated use. Patients often report that their function is best in the morning, with more pronounced weakness at the end of the day. Permanent muscle damage is rare, however, and maximal muscle strength is often good.

Extraocular muscles are more commonly affected, as twitch fibers in these muscles develop tension faster, have a higher frequency of synaptic firing than limb muscles, and have fewer AChRs, making them more susceptible to fatigue. Patients present asymmetrically; intermittent drooping of the upper eyelid (ptosis) and double vision (diplopia) are the most common symptoms.

Muscles innervated by the cranial nerves (bulbar muscles) are involved in 60% of patients with gMG and can lead to fatigable chewing, reduced facial expression, speech difficulties (dysarthria), and weakness of swallowing (dysphagia). Up to 15% of patients initially present with bulbar muscle involvement, including dysarthria and painless dysphagia.

3. Emotional stress can trigger an MC.

MC is a complication of MG characterized by worsening muscle weakness that results in respiratory failure and necessitates mechanical ventilation.

MC is often the result of respiratory muscle weakness but can also be due to bulbar weakness with upper airway collapse. MC can occur in 15%-20% of patients within the first 2-3 years of the disease; however, it can also be the first presentation of MG in 18%-28% of cases.

MC can be triggered by multiple causes, including emotional or physical stress. The most common precipitant is infection; other precipitants include surgery, pregnancy, perimenstrual state, certain medications, tapering of immune-modulating medications, exposure to temperature extremes, pain, and sleep deprivation. Approximately one third to one half of patients with MC may have no obvious cause.

4. High levels of anti-AChR antibodies strongly indicate MG, but normal levels do not rule it out.

All patients with a clinical history suggestive of MG should be tested for antibodies for confirmation. Most patients have anti-AChR antibodies (~85%), and those without have anti–muscle-specific kinase (MuSK antibodies) (6%) and anti–lipoprotein receptor-related protein 4 (LRP4) antibodies (2%).

The sensitivity of anti-AChR antibodies varies depending on whether the antibody is binding, modulating, or blocking the AChR. Binding antibody is the most common, and when combined with blocking antibodies, has a high sensitivity (99.6%) and is typically tested first. Higher AChR antibody titers are more specific for the diagnosis of MG than are low titers, but they do not correlate with disease severity.

For patients who do not have anti-AChR antibodies but do have clinical features of MG, anti-MuSK antibodies and anti-LRP4 antibodies are measured to increase diagnostic sensitivity. For symptomatic patients who do not have any autoantibodies (seronegative), electrodiagnostic testing that shows evidence of impaired signal transmission at the neuromuscular junction is used to confirm the diagnosis of MG.

5. Studies suggest that over 75% of seropositive MG patients show distinct thymus abnormalities.

More than 75% of patients with AChR antibody–positive MG have abnormalities in their thymus, and up to 40% of patients with a thymoma have MG. Among those with thymic pathology, thymic hyperplasia is the most common type (85%), but other thymic tumors (mainly thymoma) can be present in up to 15% of cases. Thymomas are typically noninvasive and cortical, but in some rare cases, invasive thymic carcinoma can occur.

Given this overlap in presentation, it is recommended that patients with seronegative and seropositive MG undergo chest CT or MRI for evaluation of their anterior mediastinal anatomy and to detect the presence of a thymoma. For patients with MG and a thymoma, as well as selected (nonthymomatous) patients with seropositive or seronegative MG, therapeutic thymectomy is recommended.

Myasthenia gravis (MG) is a rare autoimmune neurologic disorder that occurs when the transmission between nerves and muscles is disrupted. It is caused by autoantibodies against acetylcholine receptors (AChRs), which results in muscle weakness that is often fatigable and affects various muscles in the body, including those that move the eyes, eyelids, and limbs. Ocular MG affects only the muscles that move the eyes and eyelids, whereas generalized MG (gMG) affects muscles throughout the body. When MG occurs with a thymoma, it is called thymoma-associated MG and is considered a paraneoplastic disease. In severe cases of MG, patients can experience a myasthenic crisis (MC), during which respiratory muscles weaken and necessitate mechanical ventilation. Diagnosis of MG is based on clinical examination, and laboratory tests are used to confirm the diagnosis. Treatment options include cholinesterase enzyme inhibitors and immunosuppressive agents, which aim to either reduce symptoms or cause nonspecific immunosuppression, respectively, but do not target the pathogenetic autoantibodies that characterize the disease.

1. The most common age at onset of gMG is the second and third decades in women and the seventh and eighth decades in men.

MG has an annual incidence of approximately  four to 30 new cases per million population. Prevalence rates range from 150 to 200 cases per million population, and they have steadily increased over the past 50 years. This increase in prevalence is probably the result of better disease recognition, aging of the population, and an increased life span in patients.

MG can occur at any age; however, onset is more common in females in the second and third decades and is more common in males in the seventh to eighth decades. Before age 40 years, the female-to-male ratio is 3:1, and after age 50 years, the female-to-male ratio is 3:2.

2. gMG commonly weakens muscles responsible for eye movement, facial expressions, and functions such as chewing, swallowing, and speaking.

gMG typically manifests as muscle weakness that worsens with repeated use. Patients often report that their function is best in the morning, with more pronounced weakness at the end of the day. Permanent muscle damage is rare, however, and maximal muscle strength is often good.

Extraocular muscles are more commonly affected, as twitch fibers in these muscles develop tension faster, have a higher frequency of synaptic firing than limb muscles, and have fewer AChRs, making them more susceptible to fatigue. Patients present asymmetrically; intermittent drooping of the upper eyelid (ptosis) and double vision (diplopia) are the most common symptoms.

Muscles innervated by the cranial nerves (bulbar muscles) are involved in 60% of patients with gMG and can lead to fatigable chewing, reduced facial expression, speech difficulties (dysarthria), and weakness of swallowing (dysphagia). Up to 15% of patients initially present with bulbar muscle involvement, including dysarthria and painless dysphagia.

3. Emotional stress can trigger an MC.

MC is a complication of MG characterized by worsening muscle weakness that results in respiratory failure and necessitates mechanical ventilation.

MC is often the result of respiratory muscle weakness but can also be due to bulbar weakness with upper airway collapse. MC can occur in 15%-20% of patients within the first 2-3 years of the disease; however, it can also be the first presentation of MG in 18%-28% of cases.

MC can be triggered by multiple causes, including emotional or physical stress. The most common precipitant is infection; other precipitants include surgery, pregnancy, perimenstrual state, certain medications, tapering of immune-modulating medications, exposure to temperature extremes, pain, and sleep deprivation. Approximately one third to one half of patients with MC may have no obvious cause.

4. High levels of anti-AChR antibodies strongly indicate MG, but normal levels do not rule it out.

All patients with a clinical history suggestive of MG should be tested for antibodies for confirmation. Most patients have anti-AChR antibodies (~85%), and those without have anti–muscle-specific kinase (MuSK antibodies) (6%) and anti–lipoprotein receptor-related protein 4 (LRP4) antibodies (2%).

The sensitivity of anti-AChR antibodies varies depending on whether the antibody is binding, modulating, or blocking the AChR. Binding antibody is the most common, and when combined with blocking antibodies, has a high sensitivity (99.6%) and is typically tested first. Higher AChR antibody titers are more specific for the diagnosis of MG than are low titers, but they do not correlate with disease severity.

For patients who do not have anti-AChR antibodies but do have clinical features of MG, anti-MuSK antibodies and anti-LRP4 antibodies are measured to increase diagnostic sensitivity. For symptomatic patients who do not have any autoantibodies (seronegative), electrodiagnostic testing that shows evidence of impaired signal transmission at the neuromuscular junction is used to confirm the diagnosis of MG.

5. Studies suggest that over 75% of seropositive MG patients show distinct thymus abnormalities.

More than 75% of patients with AChR antibody–positive MG have abnormalities in their thymus, and up to 40% of patients with a thymoma have MG. Among those with thymic pathology, thymic hyperplasia is the most common type (85%), but other thymic tumors (mainly thymoma) can be present in up to 15% of cases. Thymomas are typically noninvasive and cortical, but in some rare cases, invasive thymic carcinoma can occur.

Given this overlap in presentation, it is recommended that patients with seronegative and seropositive MG undergo chest CT or MRI for evaluation of their anterior mediastinal anatomy and to detect the presence of a thymoma. For patients with MG and a thymoma, as well as selected (nonthymomatous) patients with seropositive or seronegative MG, therapeutic thymectomy is recommended.

Myasthenia gravis (MG) is a rare autoimmune neurologic disorder that occurs when the transmission between nerves and muscles is disrupted. It is caused by autoantibodies against acetylcholine receptors (AChRs), which results in muscle weakness that is often fatigable and affects various muscles in the body, including those that move the eyes, eyelids, and limbs. Ocular MG affects only the muscles that move the eyes and eyelids, whereas generalized MG (gMG) affects muscles throughout the body. When MG occurs with a thymoma, it is called thymoma-associated MG and is considered a paraneoplastic disease. In severe cases of MG, patients can experience a myasthenic crisis (MC), during which respiratory muscles weaken and necessitate mechanical ventilation. Diagnosis of MG is based on clinical examination, and laboratory tests are used to confirm the diagnosis. Treatment options include cholinesterase enzyme inhibitors and immunosuppressive agents, which aim to either reduce symptoms or cause nonspecific immunosuppression, respectively, but do not target the pathogenetic autoantibodies that characterize the disease.

1. The most common age at onset of gMG is the second and third decades in women and the seventh and eighth decades in men.

MG has an annual incidence of approximately  four to 30 new cases per million population. Prevalence rates range from 150 to 200 cases per million population, and they have steadily increased over the past 50 years. This increase in prevalence is probably the result of better disease recognition, aging of the population, and an increased life span in patients.

MG can occur at any age; however, onset is more common in females in the second and third decades and is more common in males in the seventh to eighth decades. Before age 40 years, the female-to-male ratio is 3:1, and after age 50 years, the female-to-male ratio is 3:2.

2. gMG commonly weakens muscles responsible for eye movement, facial expressions, and functions such as chewing, swallowing, and speaking.

gMG typically manifests as muscle weakness that worsens with repeated use. Patients often report that their function is best in the morning, with more pronounced weakness at the end of the day. Permanent muscle damage is rare, however, and maximal muscle strength is often good.

Extraocular muscles are more commonly affected, as twitch fibers in these muscles develop tension faster, have a higher frequency of synaptic firing than limb muscles, and have fewer AChRs, making them more susceptible to fatigue. Patients present asymmetrically; intermittent drooping of the upper eyelid (ptosis) and double vision (diplopia) are the most common symptoms.

Muscles innervated by the cranial nerves (bulbar muscles) are involved in 60% of patients with gMG and can lead to fatigable chewing, reduced facial expression, speech difficulties (dysarthria), and weakness of swallowing (dysphagia). Up to 15% of patients initially present with bulbar muscle involvement, including dysarthria and painless dysphagia.

3. Emotional stress can trigger an MC.

MC is a complication of MG characterized by worsening muscle weakness that results in respiratory failure and necessitates mechanical ventilation.

MC is often the result of respiratory muscle weakness but can also be due to bulbar weakness with upper airway collapse. MC can occur in 15%-20% of patients within the first 2-3 years of the disease; however, it can also be the first presentation of MG in 18%-28% of cases.

MC can be triggered by multiple causes, including emotional or physical stress. The most common precipitant is infection; other precipitants include surgery, pregnancy, perimenstrual state, certain medications, tapering of immune-modulating medications, exposure to temperature extremes, pain, and sleep deprivation. Approximately one third to one half of patients with MC may have no obvious cause.

4. High levels of anti-AChR antibodies strongly indicate MG, but normal levels do not rule it out.

All patients with a clinical history suggestive of MG should be tested for antibodies for confirmation. Most patients have anti-AChR antibodies (~85%), and those without have anti–muscle-specific kinase (MuSK antibodies) (6%) and anti–lipoprotein receptor-related protein 4 (LRP4) antibodies (2%).

The sensitivity of anti-AChR antibodies varies depending on whether the antibody is binding, modulating, or blocking the AChR. Binding antibody is the most common, and when combined with blocking antibodies, has a high sensitivity (99.6%) and is typically tested first. Higher AChR antibody titers are more specific for the diagnosis of MG than are low titers, but they do not correlate with disease severity.

For patients who do not have anti-AChR antibodies but do have clinical features of MG, anti-MuSK antibodies and anti-LRP4 antibodies are measured to increase diagnostic sensitivity. For symptomatic patients who do not have any autoantibodies (seronegative), electrodiagnostic testing that shows evidence of impaired signal transmission at the neuromuscular junction is used to confirm the diagnosis of MG.

5. Studies suggest that over 75% of seropositive MG patients show distinct thymus abnormalities.

More than 75% of patients with AChR antibody–positive MG have abnormalities in their thymus, and up to 40% of patients with a thymoma have MG. Among those with thymic pathology, thymic hyperplasia is the most common type (85%), but other thymic tumors (mainly thymoma) can be present in up to 15% of cases. Thymomas are typically noninvasive and cortical, but in some rare cases, invasive thymic carcinoma can occur.

Given this overlap in presentation, it is recommended that patients with seronegative and seropositive MG undergo chest CT or MRI for evaluation of their anterior mediastinal anatomy and to detect the presence of a thymoma. For patients with MG and a thymoma, as well as selected (nonthymomatous) patients with seropositive or seronegative MG, therapeutic thymectomy is recommended.