U.S. ketamine poisonings up 81%

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Ketamine poisonings in the United States increased 81% between 2019 and 2021, according to a new analysis of calls to poison control centers.

Although the overall ketamine exposures were low, researchers say the findings add to a growing body of research that suggests recreational ketamine use may be on the rise.

“Ketamine is by no means the most dangerous drug, but it could be dangerous if combined with drugs such as alcohol or if used in potentially hazardous situations – physically hazardous or socially hazardous,” lead author Joseph Palamar, PhD, associate professor and epidemiologist at New York University Langone Health, New York, told this news organization.

“People who decide to use ketamine recreationally need to be educated about potential risks,” Dr. Palamar said.

The findings were recently published online in the Journal of Psychopharmacology.
 

More widespread use

Researchers noted that ketamine use has become more widespread in the United States due in part to increasing availability of ketamine in both clinical and nonclinical settings.

Previous work by Dr. Palamar documented an increase in recreational use of ketamine at dance clubs and an increase in ketamine seizures by the Drug Enforcement Administration.

In the current study, investigators analyzed data from the National Poison Control database and included cases reported by 51 of the 55 poison control centers in the United States.

They identified 758 cases involving ketamine exposure between the first quarter of 2019 and the last quarter of 2021 in individuals aged 13 and older, more than half of whom were men.

The number of ketamine exposures increased 81.1% during the study period, rising from 37 to 67 (P = .018).

Nearly 40% of callers reported intentional misuse or abuse of ketamine, while 19.7% involved a suspected suicide or suicide attempt. The ketamine exposure was unintended in 18.9% of cases, and 10.6% of calls involved an adverse drug reaction.

Onep-third of cases involved co-use of other substances, most commonly benzodiazepines, opioids, or alcohol.

The route of administration was ingestion for 44.3%, injection for 18.8%, and inhalation for 17.6%. Another 19.3% involved another route or a combination of routes.

Nearly 20% of cases reported a major adverse effect or death, 42.8% reported a moderate effect, 25.8% a minor effect, and 11.8% no effect. There were seven deaths reported in ketamine-related calls, although Dr. Palamar noted it is unlikely those deaths were due solely to ketamine use.

Researchers didn’t analyze specific harms reported in the calls, but chronic and heavy ketamine use has been previously associated with cognitive impairment, urinary cystitis and other urinary tract issues, and upper gastrointestinal problems.

In addition, using ketamine with gamma-hydroxybutyrate (GHB) or opioids was associated with a significantly higher risk for major adverse effects (P < .001 for both). Injecting ketamine was also linked to a higher prevalence of major adverse effects, although the association did not quite reach significance (P < .05).
 

Cause for concern

Commenting on the findings, Timothy Wiegand, MD, director of Addiction Toxicology and Toxicology Consult Service and associate professor of emergency medicine at the University of Rochester Medical Center and Strong Memorial Hospital, New York, noted the data on co-use of ketamine with other drugs were cause for concern.

“I think the co-occurring behaviors are critical here with concomitant use of opioids and GHB, intravenous drug use, or that it is used in an attempt to harm one’s self because it allows for identification of these behaviors or use patterns,” said Dr. Wiegand, who was not involved with the research.

He added that it is important for “addiction providers and others in medicine or in the addiction field to be aware of trends” associated with ketamine.

“At the same time, a focus on general prevention, and access to care and treatment, and understanding how to implement harm reduction strategies remain high priorities,” Dr. Wiegand said.

The study was funded by the National Institute on Drug Abuse. Dr. Palamar has reported consulting for Alkermes. Dr. Wiegand has reported no relevant financial relationships.

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

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Ketamine poisonings in the United States increased 81% between 2019 and 2021, according to a new analysis of calls to poison control centers.

Although the overall ketamine exposures were low, researchers say the findings add to a growing body of research that suggests recreational ketamine use may be on the rise.

“Ketamine is by no means the most dangerous drug, but it could be dangerous if combined with drugs such as alcohol or if used in potentially hazardous situations – physically hazardous or socially hazardous,” lead author Joseph Palamar, PhD, associate professor and epidemiologist at New York University Langone Health, New York, told this news organization.

“People who decide to use ketamine recreationally need to be educated about potential risks,” Dr. Palamar said.

The findings were recently published online in the Journal of Psychopharmacology.
 

More widespread use

Researchers noted that ketamine use has become more widespread in the United States due in part to increasing availability of ketamine in both clinical and nonclinical settings.

Previous work by Dr. Palamar documented an increase in recreational use of ketamine at dance clubs and an increase in ketamine seizures by the Drug Enforcement Administration.

In the current study, investigators analyzed data from the National Poison Control database and included cases reported by 51 of the 55 poison control centers in the United States.

They identified 758 cases involving ketamine exposure between the first quarter of 2019 and the last quarter of 2021 in individuals aged 13 and older, more than half of whom were men.

The number of ketamine exposures increased 81.1% during the study period, rising from 37 to 67 (P = .018).

Nearly 40% of callers reported intentional misuse or abuse of ketamine, while 19.7% involved a suspected suicide or suicide attempt. The ketamine exposure was unintended in 18.9% of cases, and 10.6% of calls involved an adverse drug reaction.

Onep-third of cases involved co-use of other substances, most commonly benzodiazepines, opioids, or alcohol.

The route of administration was ingestion for 44.3%, injection for 18.8%, and inhalation for 17.6%. Another 19.3% involved another route or a combination of routes.

Nearly 20% of cases reported a major adverse effect or death, 42.8% reported a moderate effect, 25.8% a minor effect, and 11.8% no effect. There were seven deaths reported in ketamine-related calls, although Dr. Palamar noted it is unlikely those deaths were due solely to ketamine use.

Researchers didn’t analyze specific harms reported in the calls, but chronic and heavy ketamine use has been previously associated with cognitive impairment, urinary cystitis and other urinary tract issues, and upper gastrointestinal problems.

In addition, using ketamine with gamma-hydroxybutyrate (GHB) or opioids was associated with a significantly higher risk for major adverse effects (P < .001 for both). Injecting ketamine was also linked to a higher prevalence of major adverse effects, although the association did not quite reach significance (P < .05).
 

Cause for concern

Commenting on the findings, Timothy Wiegand, MD, director of Addiction Toxicology and Toxicology Consult Service and associate professor of emergency medicine at the University of Rochester Medical Center and Strong Memorial Hospital, New York, noted the data on co-use of ketamine with other drugs were cause for concern.

“I think the co-occurring behaviors are critical here with concomitant use of opioids and GHB, intravenous drug use, or that it is used in an attempt to harm one’s self because it allows for identification of these behaviors or use patterns,” said Dr. Wiegand, who was not involved with the research.

He added that it is important for “addiction providers and others in medicine or in the addiction field to be aware of trends” associated with ketamine.

“At the same time, a focus on general prevention, and access to care and treatment, and understanding how to implement harm reduction strategies remain high priorities,” Dr. Wiegand said.

The study was funded by the National Institute on Drug Abuse. Dr. Palamar has reported consulting for Alkermes. Dr. Wiegand has reported no relevant financial relationships.

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

Ketamine poisonings in the United States increased 81% between 2019 and 2021, according to a new analysis of calls to poison control centers.

Although the overall ketamine exposures were low, researchers say the findings add to a growing body of research that suggests recreational ketamine use may be on the rise.

“Ketamine is by no means the most dangerous drug, but it could be dangerous if combined with drugs such as alcohol or if used in potentially hazardous situations – physically hazardous or socially hazardous,” lead author Joseph Palamar, PhD, associate professor and epidemiologist at New York University Langone Health, New York, told this news organization.

“People who decide to use ketamine recreationally need to be educated about potential risks,” Dr. Palamar said.

The findings were recently published online in the Journal of Psychopharmacology.
 

More widespread use

Researchers noted that ketamine use has become more widespread in the United States due in part to increasing availability of ketamine in both clinical and nonclinical settings.

Previous work by Dr. Palamar documented an increase in recreational use of ketamine at dance clubs and an increase in ketamine seizures by the Drug Enforcement Administration.

In the current study, investigators analyzed data from the National Poison Control database and included cases reported by 51 of the 55 poison control centers in the United States.

They identified 758 cases involving ketamine exposure between the first quarter of 2019 and the last quarter of 2021 in individuals aged 13 and older, more than half of whom were men.

The number of ketamine exposures increased 81.1% during the study period, rising from 37 to 67 (P = .018).

Nearly 40% of callers reported intentional misuse or abuse of ketamine, while 19.7% involved a suspected suicide or suicide attempt. The ketamine exposure was unintended in 18.9% of cases, and 10.6% of calls involved an adverse drug reaction.

Onep-third of cases involved co-use of other substances, most commonly benzodiazepines, opioids, or alcohol.

The route of administration was ingestion for 44.3%, injection for 18.8%, and inhalation for 17.6%. Another 19.3% involved another route or a combination of routes.

Nearly 20% of cases reported a major adverse effect or death, 42.8% reported a moderate effect, 25.8% a minor effect, and 11.8% no effect. There were seven deaths reported in ketamine-related calls, although Dr. Palamar noted it is unlikely those deaths were due solely to ketamine use.

Researchers didn’t analyze specific harms reported in the calls, but chronic and heavy ketamine use has been previously associated with cognitive impairment, urinary cystitis and other urinary tract issues, and upper gastrointestinal problems.

In addition, using ketamine with gamma-hydroxybutyrate (GHB) or opioids was associated with a significantly higher risk for major adverse effects (P < .001 for both). Injecting ketamine was also linked to a higher prevalence of major adverse effects, although the association did not quite reach significance (P < .05).
 

Cause for concern

Commenting on the findings, Timothy Wiegand, MD, director of Addiction Toxicology and Toxicology Consult Service and associate professor of emergency medicine at the University of Rochester Medical Center and Strong Memorial Hospital, New York, noted the data on co-use of ketamine with other drugs were cause for concern.

“I think the co-occurring behaviors are critical here with concomitant use of opioids and GHB, intravenous drug use, or that it is used in an attempt to harm one’s self because it allows for identification of these behaviors or use patterns,” said Dr. Wiegand, who was not involved with the research.

He added that it is important for “addiction providers and others in medicine or in the addiction field to be aware of trends” associated with ketamine.

“At the same time, a focus on general prevention, and access to care and treatment, and understanding how to implement harm reduction strategies remain high priorities,” Dr. Wiegand said.

The study was funded by the National Institute on Drug Abuse. Dr. Palamar has reported consulting for Alkermes. Dr. Wiegand has reported no relevant financial relationships.

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

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Kids with concussions may benefit from early return to school

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Children and teens with concussions who returned to school sooner showed fewer symptoms after 2 weeks than those who returned to school later, based on data from more than 1,600 individuals aged 5-18 years.

The timing for return to school after a concussion has been the subject of guidelines, but data on how the timing of school returns affects later symptom burdens are limited, Christopher G. Vaughan, PhD, of Children’s National Hospital, Rockville, Md., and colleagues wrote.

Examining how the timing of return to school (RTS) affects later symptoms is needed to inform early postinjury management, they said.

In the new study published in JAMA Network Open, the researchers identified 1,630 children and teens aged 5-18 years who were treated for concussions at nine Canadian pediatric EDs. The primary outcome was symptom burden at 14 days post concussion, based on the Post-Concussion Symptom Inventory (PCSI). Early RTS was defined as missing fewer than 3 days of school post concussion.

Overall, the mean number of missed school days was 3.74 (excluding weekends). When divided by age, the mean number of missed days was 2.61 for children aged 5-7 years, 3.26 for those aged 8-12 years, and 4.71 for those aged 13-18 years.

Slightly more than half (53.7%) of the participants had an early RTS of 2 missed days or fewer. Later RTS was most common in the oldest age group, followed by the middle and younger age groups.

The researchers used a propensity score–matched analysis to determine associations. At 14 days, an early RTS was associated with reduced symptoms among 8- to 12-year-olds and 13- to 18-year-olds, though not in the youngest patients aged 5-7 years. In addition, the researchers created quantiles based on initial symptom ratings.

For the youngest age group, the association between early RTS and reduced symptoms at day 14 was higher among those with lower initial symptoms.

For the two older groups, the association was higher for those with higher initial symptoms (based on the PCSI).

The findings that earlier RTS was associated with a lower symptom burden at day 14 for those with higher levels of symptoms at baseline was surprising, but the mechanisms of the timing and effect of RTS requires more study, the researchers wrote in their discussion.

The effect of early RTS on symptoms may be in part related to factors such as “the benefits of socialization, reduced stress from not missing too much school, maintaining or returning to a normal sleep-wake schedule, and returning to light to moderate physical activity (gym class and recreational activities),” the researchers noted.

Another study related to recovery and concussion recently appeared in Neurology. In that study, the authors found that those athletes who took a longer time to recover from a sports-related concussion could still return to play with additional time off, but the methods and populations differed from the current study, which focused on RTS rather than returning to play.

The current study findings were limited by several factors including the lack of randomization for RTS timing and a lack of data on the variety of potential supports and accommodations students received, the researchers noted.

However, the results were strengthened by the large size and diverse nature of the concussions, and the roughly equal representation of boys and girls, they said.

Although randomized trials are needed to determine the best timing for RTS, the current study suggests that RTS within 2 days of a concussion is associated with improved symptoms, “and may directly or indirectly promote faster recovery,” they concluded.
 

 

 

Early return remains feasible for most children and teens

“Return to school can be a complicated issue for children and teens with concussions,” said Caitlyn Mooney, MD, a pediatrician and specialist in sports medicine at the University of Texas Health Science Center, San Antonio, said in an interview. Although much research has focused on diagnosis and return to sport after a concussion, there has been less focus on returning to school and learning. Various issues post concussion can make schooling difficult, and students may experience trouble with vision, concentration, sleep, headaches, and more.

Despite this knowledge, studies that specifically address recommended school protocols are limited, Dr. Mooney said. “Additionally, all concussions are different; while some students will need minimal help to return and succeed in school, others may need individualized learning plans and accommodations for school.” A return to school ideally would be a team-based approach with input from the parent, patient, physician, and educators.

“The theory of cognitive rest stems from the idea that a concussion causes metabolic dysfunction in the brain, and that increasing the metabolic demands of the brain can result in symptoms and a delayed return to school,” said Dr. Mooney.

Evidence suggests that those who start resting early after a concussion improve more quickly, “but there has been ongoing discussion over the years of what is the correct balance of cognitive rest to returning to modified activity,” she said. “This has led to the current general recommendation of rest for 24-48 hours followed by a gradual return to school as tolerated.”

Although the current study is large, it is limited by the lack of randomization, Dr. Mooney noted, therefore conclusions cannot be made that the cause of the improved symptoms is a quicker return to school.

However, the results support data from previous studies, in that both of the older age groups showed less disease burden at 14 days after an earlier return to school, she said.

“With prolonged absences, adolescents get isolated at home away from friends, and they may have increased mood symptoms. Additionally, I have found a high number of my patients who do not go to school as quickly have more sleep disturbance, which seems to increase symptoms such as difficulty concentrating or headaches,” she said. “It seems like the students do benefit from a routine schedule even if they have to have some accommodations at school, especially older students who may have more stress about missing school and falling behind on schoolwork.”

The message for pediatricians is that return to school should be individualized, Dr. Mooney said.

Although the current study does not dictate the optimal return to school, the results support those of previous studies in showing that, after 1-2 days of rest, an early return does not harm children and teens and may improve symptoms in many cases, she said. “In my experience, sometimes schools find it easier to keep the student at home rather than manage rest or special accommodations,” but the current study suggests that delaying return to school may not be the right choice for many patients.

“I hope this study empowers clinicians to advocate for these students, that the right place for them is in the classroom even with rest, extra time, or other accommodations,” said Dr. Mooney.

“Each concussion should be evaluated and treated individually; there will likely be a few who may need to stay home for a longer period of time, but this study suggests that the majority of students will suffer no ill effects from returning to the normal routine after a 2-day rest,” she noted.

The study was supported by the Canadian Institutes for Health Research. Dr. Vaughan and several coauthors disclosed being authors of the Postconcussion Symptom Inventory outside of the current study. Dr. Mooney had no financial conflicts to disclose.

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Children and teens with concussions who returned to school sooner showed fewer symptoms after 2 weeks than those who returned to school later, based on data from more than 1,600 individuals aged 5-18 years.

The timing for return to school after a concussion has been the subject of guidelines, but data on how the timing of school returns affects later symptom burdens are limited, Christopher G. Vaughan, PhD, of Children’s National Hospital, Rockville, Md., and colleagues wrote.

Examining how the timing of return to school (RTS) affects later symptoms is needed to inform early postinjury management, they said.

In the new study published in JAMA Network Open, the researchers identified 1,630 children and teens aged 5-18 years who were treated for concussions at nine Canadian pediatric EDs. The primary outcome was symptom burden at 14 days post concussion, based on the Post-Concussion Symptom Inventory (PCSI). Early RTS was defined as missing fewer than 3 days of school post concussion.

Overall, the mean number of missed school days was 3.74 (excluding weekends). When divided by age, the mean number of missed days was 2.61 for children aged 5-7 years, 3.26 for those aged 8-12 years, and 4.71 for those aged 13-18 years.

Slightly more than half (53.7%) of the participants had an early RTS of 2 missed days or fewer. Later RTS was most common in the oldest age group, followed by the middle and younger age groups.

The researchers used a propensity score–matched analysis to determine associations. At 14 days, an early RTS was associated with reduced symptoms among 8- to 12-year-olds and 13- to 18-year-olds, though not in the youngest patients aged 5-7 years. In addition, the researchers created quantiles based on initial symptom ratings.

For the youngest age group, the association between early RTS and reduced symptoms at day 14 was higher among those with lower initial symptoms.

For the two older groups, the association was higher for those with higher initial symptoms (based on the PCSI).

The findings that earlier RTS was associated with a lower symptom burden at day 14 for those with higher levels of symptoms at baseline was surprising, but the mechanisms of the timing and effect of RTS requires more study, the researchers wrote in their discussion.

The effect of early RTS on symptoms may be in part related to factors such as “the benefits of socialization, reduced stress from not missing too much school, maintaining or returning to a normal sleep-wake schedule, and returning to light to moderate physical activity (gym class and recreational activities),” the researchers noted.

Another study related to recovery and concussion recently appeared in Neurology. In that study, the authors found that those athletes who took a longer time to recover from a sports-related concussion could still return to play with additional time off, but the methods and populations differed from the current study, which focused on RTS rather than returning to play.

The current study findings were limited by several factors including the lack of randomization for RTS timing and a lack of data on the variety of potential supports and accommodations students received, the researchers noted.

However, the results were strengthened by the large size and diverse nature of the concussions, and the roughly equal representation of boys and girls, they said.

Although randomized trials are needed to determine the best timing for RTS, the current study suggests that RTS within 2 days of a concussion is associated with improved symptoms, “and may directly or indirectly promote faster recovery,” they concluded.
 

 

 

Early return remains feasible for most children and teens

“Return to school can be a complicated issue for children and teens with concussions,” said Caitlyn Mooney, MD, a pediatrician and specialist in sports medicine at the University of Texas Health Science Center, San Antonio, said in an interview. Although much research has focused on diagnosis and return to sport after a concussion, there has been less focus on returning to school and learning. Various issues post concussion can make schooling difficult, and students may experience trouble with vision, concentration, sleep, headaches, and more.

Despite this knowledge, studies that specifically address recommended school protocols are limited, Dr. Mooney said. “Additionally, all concussions are different; while some students will need minimal help to return and succeed in school, others may need individualized learning plans and accommodations for school.” A return to school ideally would be a team-based approach with input from the parent, patient, physician, and educators.

“The theory of cognitive rest stems from the idea that a concussion causes metabolic dysfunction in the brain, and that increasing the metabolic demands of the brain can result in symptoms and a delayed return to school,” said Dr. Mooney.

Evidence suggests that those who start resting early after a concussion improve more quickly, “but there has been ongoing discussion over the years of what is the correct balance of cognitive rest to returning to modified activity,” she said. “This has led to the current general recommendation of rest for 24-48 hours followed by a gradual return to school as tolerated.”

Although the current study is large, it is limited by the lack of randomization, Dr. Mooney noted, therefore conclusions cannot be made that the cause of the improved symptoms is a quicker return to school.

However, the results support data from previous studies, in that both of the older age groups showed less disease burden at 14 days after an earlier return to school, she said.

“With prolonged absences, adolescents get isolated at home away from friends, and they may have increased mood symptoms. Additionally, I have found a high number of my patients who do not go to school as quickly have more sleep disturbance, which seems to increase symptoms such as difficulty concentrating or headaches,” she said. “It seems like the students do benefit from a routine schedule even if they have to have some accommodations at school, especially older students who may have more stress about missing school and falling behind on schoolwork.”

The message for pediatricians is that return to school should be individualized, Dr. Mooney said.

Although the current study does not dictate the optimal return to school, the results support those of previous studies in showing that, after 1-2 days of rest, an early return does not harm children and teens and may improve symptoms in many cases, she said. “In my experience, sometimes schools find it easier to keep the student at home rather than manage rest or special accommodations,” but the current study suggests that delaying return to school may not be the right choice for many patients.

“I hope this study empowers clinicians to advocate for these students, that the right place for them is in the classroom even with rest, extra time, or other accommodations,” said Dr. Mooney.

“Each concussion should be evaluated and treated individually; there will likely be a few who may need to stay home for a longer period of time, but this study suggests that the majority of students will suffer no ill effects from returning to the normal routine after a 2-day rest,” she noted.

The study was supported by the Canadian Institutes for Health Research. Dr. Vaughan and several coauthors disclosed being authors of the Postconcussion Symptom Inventory outside of the current study. Dr. Mooney had no financial conflicts to disclose.

Children and teens with concussions who returned to school sooner showed fewer symptoms after 2 weeks than those who returned to school later, based on data from more than 1,600 individuals aged 5-18 years.

The timing for return to school after a concussion has been the subject of guidelines, but data on how the timing of school returns affects later symptom burdens are limited, Christopher G. Vaughan, PhD, of Children’s National Hospital, Rockville, Md., and colleagues wrote.

Examining how the timing of return to school (RTS) affects later symptoms is needed to inform early postinjury management, they said.

In the new study published in JAMA Network Open, the researchers identified 1,630 children and teens aged 5-18 years who were treated for concussions at nine Canadian pediatric EDs. The primary outcome was symptom burden at 14 days post concussion, based on the Post-Concussion Symptom Inventory (PCSI). Early RTS was defined as missing fewer than 3 days of school post concussion.

Overall, the mean number of missed school days was 3.74 (excluding weekends). When divided by age, the mean number of missed days was 2.61 for children aged 5-7 years, 3.26 for those aged 8-12 years, and 4.71 for those aged 13-18 years.

Slightly more than half (53.7%) of the participants had an early RTS of 2 missed days or fewer. Later RTS was most common in the oldest age group, followed by the middle and younger age groups.

The researchers used a propensity score–matched analysis to determine associations. At 14 days, an early RTS was associated with reduced symptoms among 8- to 12-year-olds and 13- to 18-year-olds, though not in the youngest patients aged 5-7 years. In addition, the researchers created quantiles based on initial symptom ratings.

For the youngest age group, the association between early RTS and reduced symptoms at day 14 was higher among those with lower initial symptoms.

For the two older groups, the association was higher for those with higher initial symptoms (based on the PCSI).

The findings that earlier RTS was associated with a lower symptom burden at day 14 for those with higher levels of symptoms at baseline was surprising, but the mechanisms of the timing and effect of RTS requires more study, the researchers wrote in their discussion.

The effect of early RTS on symptoms may be in part related to factors such as “the benefits of socialization, reduced stress from not missing too much school, maintaining or returning to a normal sleep-wake schedule, and returning to light to moderate physical activity (gym class and recreational activities),” the researchers noted.

Another study related to recovery and concussion recently appeared in Neurology. In that study, the authors found that those athletes who took a longer time to recover from a sports-related concussion could still return to play with additional time off, but the methods and populations differed from the current study, which focused on RTS rather than returning to play.

The current study findings were limited by several factors including the lack of randomization for RTS timing and a lack of data on the variety of potential supports and accommodations students received, the researchers noted.

However, the results were strengthened by the large size and diverse nature of the concussions, and the roughly equal representation of boys and girls, they said.

Although randomized trials are needed to determine the best timing for RTS, the current study suggests that RTS within 2 days of a concussion is associated with improved symptoms, “and may directly or indirectly promote faster recovery,” they concluded.
 

 

 

Early return remains feasible for most children and teens

“Return to school can be a complicated issue for children and teens with concussions,” said Caitlyn Mooney, MD, a pediatrician and specialist in sports medicine at the University of Texas Health Science Center, San Antonio, said in an interview. Although much research has focused on diagnosis and return to sport after a concussion, there has been less focus on returning to school and learning. Various issues post concussion can make schooling difficult, and students may experience trouble with vision, concentration, sleep, headaches, and more.

Despite this knowledge, studies that specifically address recommended school protocols are limited, Dr. Mooney said. “Additionally, all concussions are different; while some students will need minimal help to return and succeed in school, others may need individualized learning plans and accommodations for school.” A return to school ideally would be a team-based approach with input from the parent, patient, physician, and educators.

“The theory of cognitive rest stems from the idea that a concussion causes metabolic dysfunction in the brain, and that increasing the metabolic demands of the brain can result in symptoms and a delayed return to school,” said Dr. Mooney.

Evidence suggests that those who start resting early after a concussion improve more quickly, “but there has been ongoing discussion over the years of what is the correct balance of cognitive rest to returning to modified activity,” she said. “This has led to the current general recommendation of rest for 24-48 hours followed by a gradual return to school as tolerated.”

Although the current study is large, it is limited by the lack of randomization, Dr. Mooney noted, therefore conclusions cannot be made that the cause of the improved symptoms is a quicker return to school.

However, the results support data from previous studies, in that both of the older age groups showed less disease burden at 14 days after an earlier return to school, she said.

“With prolonged absences, adolescents get isolated at home away from friends, and they may have increased mood symptoms. Additionally, I have found a high number of my patients who do not go to school as quickly have more sleep disturbance, which seems to increase symptoms such as difficulty concentrating or headaches,” she said. “It seems like the students do benefit from a routine schedule even if they have to have some accommodations at school, especially older students who may have more stress about missing school and falling behind on schoolwork.”

The message for pediatricians is that return to school should be individualized, Dr. Mooney said.

Although the current study does not dictate the optimal return to school, the results support those of previous studies in showing that, after 1-2 days of rest, an early return does not harm children and teens and may improve symptoms in many cases, she said. “In my experience, sometimes schools find it easier to keep the student at home rather than manage rest or special accommodations,” but the current study suggests that delaying return to school may not be the right choice for many patients.

“I hope this study empowers clinicians to advocate for these students, that the right place for them is in the classroom even with rest, extra time, or other accommodations,” said Dr. Mooney.

“Each concussion should be evaluated and treated individually; there will likely be a few who may need to stay home for a longer period of time, but this study suggests that the majority of students will suffer no ill effects from returning to the normal routine after a 2-day rest,” she noted.

The study was supported by the Canadian Institutes for Health Research. Dr. Vaughan and several coauthors disclosed being authors of the Postconcussion Symptom Inventory outside of the current study. Dr. Mooney had no financial conflicts to disclose.

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Social isolation hikes dementia risk in older adults

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Social isolation in older adults increases the risk for developing dementia, new research suggests. Results from a longitudinal study that included more than 5,000 United States–based seniors showed that nearly one-quarter were socially isolated.

After adjusting for demographic and health factors, social isolation was found to be associated with a 28% higher risk for developing dementia over a 9-year period, compared with non-isolation. In addition, this finding held true regardless of race or ethnicity.

“Social connections are increasingly understood as a critical factor for the health of individuals as they age,” senior study author Thomas K.M. Cudjoe, MD, Robert and Jane Meyerhoff Endowed Professor and assistant professor of medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, said in a press release. “Our study expands our understanding of the deleterious impact of social isolation on one’s risk for dementia over time,” Dr. Cudjoe added.

The findings were published online  in the Journal of the American Geriatric Society.
 

Upstream resources, downstream outcomes

Social isolation is a “multidimensional construct” characterized by factors such as social connections, social support, resource sharing, and relationship strain. It also affects approximately a quarter of older adults, the investigators noted.

Although prior studies have pointed to an association between socially isolated older adults and increased risk for incident dementia, no study has described this longitudinal association in a nationally representative cohort of U.S. seniors. 

Dr. Cudjoe said he was motivated to conduct the current study because he wondered whether or not older adults throughout the United States were similar to some of his patients “who might be at risk for worse cognitive outcomes because they lacked social contact with friends, family, or neighbors.”

The study was also “informed by conceptual foundation that upstream social and personal resources are linked to downstream health outcomes, including cognitive health and function,” the researchers added.

They turned to 2011-2020 data from the National Health and Aging Trends Study, a nationally representative, longitudinal cohort of U.S. Medicare beneficiaries. The sample was drawn from the Medicare enrollment file and incorporated 95 counties and 655 zip codes.

Participants (n = 5,022; mean age, 76.4 years; 57.2% women; 71.7% White, non-Hispanic; 42.4% having more than a college education) were community-dwelling older adults who completed annual 2-hour interviews that included assessment of function, economic health status, and well-being. To be included, they had to attend at least the baseline and first follow-up visits.

NHATS “includes domains that are relevant for the characterization of social isolation,” the investigators wrote. It used a typology of structural social isolation that is informed by the Berkman-Syme Social Network Index.

Included domains were living arrangements, discussion networks, and participation. All are “clinically relevant, practical, and components of a comprehensive social history,” the researchers noted.

They added that individuals classified as “socially isolated” often live alone, have no one or only one person that they can rely upon to discuss important matters, and have limited or no engagement in social or religious groups.

Social isolation in the study was characterized using questions about living with at least one other person, talking to two or more other people about “important matters” in the past year, attending religious services in the past month, and participating in the past month in such things as clubs, meetings, group activities, or volunteer work.
 

 

 

Wake-up call

Study participants received 1 point for each item/domain, with a sum score of 0 or 1 classified as “socially isolated” and 2 or more points considered “not socially isolated.” They were classified as having probable dementia based either on self-report or lower-than-mean performance in 2 or more cognitive domains, or a score indicating probable dementia on the AD8 Dementia Screening Interview.

Covariates included demographic factors, education, and health factors. Mean follow-up was 5.1 years.

Results showed close to one-quarter (23.3%) of the study population was classified as socially isolated, with one-fifth (21.1%) developing dementia by the end of the follow-up period.

Compared with non-isolated older adults, those who were socially isolated were more likely to develop dementia during the follow-up period (19.6% vs. 25.9%, respectively).

After adjusting for demographic factors, social isolation was significantly associated with a higher risk for incident dementia (hazard ratio, 1.33; 95% confidence interval, 1.13-1.56). This association persisted after further adjustment for health factors (HR, 1.27; 95% CI, 1.08-1.49). Race and ethnicity had no bearing on the association.

In addition to the association between social isolation and dementia, the researchers also estimated the cause-specific hazard of death before dementia and found that, overall, 18% of participants died prior to dementia over the follow-up period. In particular, the social isolation–associated cause-specific HR of death before dementia was 1.28 (95% CI, 1.2-1.5).

Dr. Cudjoe noted that the mechanism behind the association between social isolation and dementia in this population needs further study. Still, he hopes that the findings will “serve as a wake-up call for all of us to be more thoughtful of the role of social connections on our cognitive health.”

Clinicians “should be thinking about and assessing the presence or absence of social connections in their patients,” Dr. Cudjoe added.
 

‘Instrumental role’

Commenting on the study, Nicole Purcell, DO, neurologist and senior director of clinical practice at the Alzheimer’s Association, said the study “contributes to the growing body of evidence that finds social isolation is a serious public health risk for many seniors living in the United States, increasing their risk for dementia and other serious mental conditions.”

Dr. Purcell, who was not involved with the study, added that “health care systems and medical professionals can play an instrumental role in identifying individuals at risk for social isolation.”

She noted that for those experiencing social isolation, “interaction with health care providers may be one of the few opportunities those individuals have for social engagement, [so] using these interactions to identify individuals at risk for social isolation and referring them to local resources and groups that promote engagement, well-being, and access to senior services may help decrease dementia risk for vulnerable seniors.”

Dr. Purcell added that the Alzheimer’s Association offers early-stage programs throughout the country, including support groups, education, art, music, and other socially engaging activities.

The study was funded by the National Institute on Aging, National Institute on Minority Health and Health Disparities, and Secunda Family Foundation. The investigators and Dr. Purcell have reported no relevant financial relationships.

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

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Social isolation in older adults increases the risk for developing dementia, new research suggests. Results from a longitudinal study that included more than 5,000 United States–based seniors showed that nearly one-quarter were socially isolated.

After adjusting for demographic and health factors, social isolation was found to be associated with a 28% higher risk for developing dementia over a 9-year period, compared with non-isolation. In addition, this finding held true regardless of race or ethnicity.

“Social connections are increasingly understood as a critical factor for the health of individuals as they age,” senior study author Thomas K.M. Cudjoe, MD, Robert and Jane Meyerhoff Endowed Professor and assistant professor of medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, said in a press release. “Our study expands our understanding of the deleterious impact of social isolation on one’s risk for dementia over time,” Dr. Cudjoe added.

The findings were published online  in the Journal of the American Geriatric Society.
 

Upstream resources, downstream outcomes

Social isolation is a “multidimensional construct” characterized by factors such as social connections, social support, resource sharing, and relationship strain. It also affects approximately a quarter of older adults, the investigators noted.

Although prior studies have pointed to an association between socially isolated older adults and increased risk for incident dementia, no study has described this longitudinal association in a nationally representative cohort of U.S. seniors. 

Dr. Cudjoe said he was motivated to conduct the current study because he wondered whether or not older adults throughout the United States were similar to some of his patients “who might be at risk for worse cognitive outcomes because they lacked social contact with friends, family, or neighbors.”

The study was also “informed by conceptual foundation that upstream social and personal resources are linked to downstream health outcomes, including cognitive health and function,” the researchers added.

They turned to 2011-2020 data from the National Health and Aging Trends Study, a nationally representative, longitudinal cohort of U.S. Medicare beneficiaries. The sample was drawn from the Medicare enrollment file and incorporated 95 counties and 655 zip codes.

Participants (n = 5,022; mean age, 76.4 years; 57.2% women; 71.7% White, non-Hispanic; 42.4% having more than a college education) were community-dwelling older adults who completed annual 2-hour interviews that included assessment of function, economic health status, and well-being. To be included, they had to attend at least the baseline and first follow-up visits.

NHATS “includes domains that are relevant for the characterization of social isolation,” the investigators wrote. It used a typology of structural social isolation that is informed by the Berkman-Syme Social Network Index.

Included domains were living arrangements, discussion networks, and participation. All are “clinically relevant, practical, and components of a comprehensive social history,” the researchers noted.

They added that individuals classified as “socially isolated” often live alone, have no one or only one person that they can rely upon to discuss important matters, and have limited or no engagement in social or religious groups.

Social isolation in the study was characterized using questions about living with at least one other person, talking to two or more other people about “important matters” in the past year, attending religious services in the past month, and participating in the past month in such things as clubs, meetings, group activities, or volunteer work.
 

 

 

Wake-up call

Study participants received 1 point for each item/domain, with a sum score of 0 or 1 classified as “socially isolated” and 2 or more points considered “not socially isolated.” They were classified as having probable dementia based either on self-report or lower-than-mean performance in 2 or more cognitive domains, or a score indicating probable dementia on the AD8 Dementia Screening Interview.

Covariates included demographic factors, education, and health factors. Mean follow-up was 5.1 years.

Results showed close to one-quarter (23.3%) of the study population was classified as socially isolated, with one-fifth (21.1%) developing dementia by the end of the follow-up period.

Compared with non-isolated older adults, those who were socially isolated were more likely to develop dementia during the follow-up period (19.6% vs. 25.9%, respectively).

After adjusting for demographic factors, social isolation was significantly associated with a higher risk for incident dementia (hazard ratio, 1.33; 95% confidence interval, 1.13-1.56). This association persisted after further adjustment for health factors (HR, 1.27; 95% CI, 1.08-1.49). Race and ethnicity had no bearing on the association.

In addition to the association between social isolation and dementia, the researchers also estimated the cause-specific hazard of death before dementia and found that, overall, 18% of participants died prior to dementia over the follow-up period. In particular, the social isolation–associated cause-specific HR of death before dementia was 1.28 (95% CI, 1.2-1.5).

Dr. Cudjoe noted that the mechanism behind the association between social isolation and dementia in this population needs further study. Still, he hopes that the findings will “serve as a wake-up call for all of us to be more thoughtful of the role of social connections on our cognitive health.”

Clinicians “should be thinking about and assessing the presence or absence of social connections in their patients,” Dr. Cudjoe added.
 

‘Instrumental role’

Commenting on the study, Nicole Purcell, DO, neurologist and senior director of clinical practice at the Alzheimer’s Association, said the study “contributes to the growing body of evidence that finds social isolation is a serious public health risk for many seniors living in the United States, increasing their risk for dementia and other serious mental conditions.”

Dr. Purcell, who was not involved with the study, added that “health care systems and medical professionals can play an instrumental role in identifying individuals at risk for social isolation.”

She noted that for those experiencing social isolation, “interaction with health care providers may be one of the few opportunities those individuals have for social engagement, [so] using these interactions to identify individuals at risk for social isolation and referring them to local resources and groups that promote engagement, well-being, and access to senior services may help decrease dementia risk for vulnerable seniors.”

Dr. Purcell added that the Alzheimer’s Association offers early-stage programs throughout the country, including support groups, education, art, music, and other socially engaging activities.

The study was funded by the National Institute on Aging, National Institute on Minority Health and Health Disparities, and Secunda Family Foundation. The investigators and Dr. Purcell have reported no relevant financial relationships.

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

Social isolation in older adults increases the risk for developing dementia, new research suggests. Results from a longitudinal study that included more than 5,000 United States–based seniors showed that nearly one-quarter were socially isolated.

After adjusting for demographic and health factors, social isolation was found to be associated with a 28% higher risk for developing dementia over a 9-year period, compared with non-isolation. In addition, this finding held true regardless of race or ethnicity.

“Social connections are increasingly understood as a critical factor for the health of individuals as they age,” senior study author Thomas K.M. Cudjoe, MD, Robert and Jane Meyerhoff Endowed Professor and assistant professor of medicine, Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, said in a press release. “Our study expands our understanding of the deleterious impact of social isolation on one’s risk for dementia over time,” Dr. Cudjoe added.

The findings were published online  in the Journal of the American Geriatric Society.
 

Upstream resources, downstream outcomes

Social isolation is a “multidimensional construct” characterized by factors such as social connections, social support, resource sharing, and relationship strain. It also affects approximately a quarter of older adults, the investigators noted.

Although prior studies have pointed to an association between socially isolated older adults and increased risk for incident dementia, no study has described this longitudinal association in a nationally representative cohort of U.S. seniors. 

Dr. Cudjoe said he was motivated to conduct the current study because he wondered whether or not older adults throughout the United States were similar to some of his patients “who might be at risk for worse cognitive outcomes because they lacked social contact with friends, family, or neighbors.”

The study was also “informed by conceptual foundation that upstream social and personal resources are linked to downstream health outcomes, including cognitive health and function,” the researchers added.

They turned to 2011-2020 data from the National Health and Aging Trends Study, a nationally representative, longitudinal cohort of U.S. Medicare beneficiaries. The sample was drawn from the Medicare enrollment file and incorporated 95 counties and 655 zip codes.

Participants (n = 5,022; mean age, 76.4 years; 57.2% women; 71.7% White, non-Hispanic; 42.4% having more than a college education) were community-dwelling older adults who completed annual 2-hour interviews that included assessment of function, economic health status, and well-being. To be included, they had to attend at least the baseline and first follow-up visits.

NHATS “includes domains that are relevant for the characterization of social isolation,” the investigators wrote. It used a typology of structural social isolation that is informed by the Berkman-Syme Social Network Index.

Included domains were living arrangements, discussion networks, and participation. All are “clinically relevant, practical, and components of a comprehensive social history,” the researchers noted.

They added that individuals classified as “socially isolated” often live alone, have no one or only one person that they can rely upon to discuss important matters, and have limited or no engagement in social or religious groups.

Social isolation in the study was characterized using questions about living with at least one other person, talking to two or more other people about “important matters” in the past year, attending religious services in the past month, and participating in the past month in such things as clubs, meetings, group activities, or volunteer work.
 

 

 

Wake-up call

Study participants received 1 point for each item/domain, with a sum score of 0 or 1 classified as “socially isolated” and 2 or more points considered “not socially isolated.” They were classified as having probable dementia based either on self-report or lower-than-mean performance in 2 or more cognitive domains, or a score indicating probable dementia on the AD8 Dementia Screening Interview.

Covariates included demographic factors, education, and health factors. Mean follow-up was 5.1 years.

Results showed close to one-quarter (23.3%) of the study population was classified as socially isolated, with one-fifth (21.1%) developing dementia by the end of the follow-up period.

Compared with non-isolated older adults, those who were socially isolated were more likely to develop dementia during the follow-up period (19.6% vs. 25.9%, respectively).

After adjusting for demographic factors, social isolation was significantly associated with a higher risk for incident dementia (hazard ratio, 1.33; 95% confidence interval, 1.13-1.56). This association persisted after further adjustment for health factors (HR, 1.27; 95% CI, 1.08-1.49). Race and ethnicity had no bearing on the association.

In addition to the association between social isolation and dementia, the researchers also estimated the cause-specific hazard of death before dementia and found that, overall, 18% of participants died prior to dementia over the follow-up period. In particular, the social isolation–associated cause-specific HR of death before dementia was 1.28 (95% CI, 1.2-1.5).

Dr. Cudjoe noted that the mechanism behind the association between social isolation and dementia in this population needs further study. Still, he hopes that the findings will “serve as a wake-up call for all of us to be more thoughtful of the role of social connections on our cognitive health.”

Clinicians “should be thinking about and assessing the presence or absence of social connections in their patients,” Dr. Cudjoe added.
 

‘Instrumental role’

Commenting on the study, Nicole Purcell, DO, neurologist and senior director of clinical practice at the Alzheimer’s Association, said the study “contributes to the growing body of evidence that finds social isolation is a serious public health risk for many seniors living in the United States, increasing their risk for dementia and other serious mental conditions.”

Dr. Purcell, who was not involved with the study, added that “health care systems and medical professionals can play an instrumental role in identifying individuals at risk for social isolation.”

She noted that for those experiencing social isolation, “interaction with health care providers may be one of the few opportunities those individuals have for social engagement, [so] using these interactions to identify individuals at risk for social isolation and referring them to local resources and groups that promote engagement, well-being, and access to senior services may help decrease dementia risk for vulnerable seniors.”

Dr. Purcell added that the Alzheimer’s Association offers early-stage programs throughout the country, including support groups, education, art, music, and other socially engaging activities.

The study was funded by the National Institute on Aging, National Institute on Minority Health and Health Disparities, and Secunda Family Foundation. The investigators and Dr. Purcell have reported no relevant financial relationships.

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

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Brain differences suggest therapeutic targets in Takotsubo

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A new study has identified differences in the brain present in patients with the cardiac disorder Takotsubo syndrome versus control scans, which may lead to new therapeutic targets.

Takotsubo syndrome is an acute heart failure cardiomyopathy mimicking an acute myocardial infarction in its presentation, but on investigation, no obstructive coronary disease is present. The syndrome, which mainly affects women, typically occurs in the aftermath of intense emotional or physical stress and has become known as “broken heart syndrome.”

The mechanism by which emotional processing in the context of stress leads to significant cardiac injury and acute left ventricular dysfunction is not understood. So, the current study examined both structural and functional effects in the brain in patients with Takotsubo syndrome to shed more light on the issue.

“The abnormalities in the thalamus-amygdala-insula and basal ganglia support the concept of involvement of higher-level function centers in Takotsubo syndrome, and interventions aimed at modulating these may be of benefit,” the authors conclude.

The study was published online in JACC: Heart Failure.

Lead author Hilal Khan, MB BCh, BAO, from the University of Aberdeen (Scotland), explained to this news organization that patients with Takotsubo syndrome have a substantial drop in heart function and show an apical ballooning of the heart.

It is a relatively newly defined condition and was first described in 1990 in Japan, and so named because the heart was thought to resemble the Takotsubo pot used by Japanese fishermen to trap octopus.

Although uncommon, the condition is not rare. Dr. Khan estimates that about 1 in 20 women with suspected MI turn out to have Takotsubo syndrome, with cases increasing in times of global stress such as in the recent pandemic.

While patients tend to recover in a few weeks and the pumping function of the heart usually returns to normal, there are some long-term cardiac complications including a reduction in global longitudinal strain, and patients have similar long-term outcomes as those with MI.  

“It is believed that these cardiac changes may be triggered by changes in the brain caused by emotional stress, so we wanted to look at this more closely,” Dr. Khan said.  

There have been a couple of studies published previously looking at brain changes in Takotsubo syndrome, but they haven’t reported patients in the acute stage of the condition and they haven’t compared the patients to controls, he noted.

For the current study, the researchers looked at brain scans for 25 acute Takotsubo patients and in 25 controls matched for age, gender, comorbidities, and medications. All the patients and controls were examined using the same MRI scanner in the same hospital.

“This is the largest structural and functional brain study of acute Takotsubo syndrome patients compared with matched control subjects,” Dr. Khan said.

The researchers looked at many different factors including brain volume in different regions, cortical thickness, small-vessel disease, and functional and structural connectivity to try and obtain a complete holistic view of the brain.

Key findings were that patients with Takotsubo syndrome had smaller brain volumes, compared with matched controls, driven by a reduction in brain surface area. In contrast, the insula and thalamus regions were larger.

“A reduction in brain volume could be caused by inflammation; this is often seen in depression,” Dr. Khan commented.  

The researchers also found that certain areas of the brain had a reduction in functional connectivity, particularly the thalamus – the central autonomic area of the brain, which regulates the autonomic nervous system – and also the insula region, which is also involved in the autonomic regulation of the heart.

They suggest that there may be a loss of parasympathetic inhibition in Takotsubo syndrome, which would fit the theory that Takotsubo brings with it a surge of catecholamines, which could injure the heart.

Reduced functional connectivity was also seen in parts of the basal ganglia, abnormalities of which have been associated with an increased risk of both arrhythmias, and in the amygdala, similar to patients with a tendency to catastrophize events.

The other observation was that there appeared to be an increase in structural connectivity in certain areas of the brain. 

“Structural pathways seem to be increased but functional connectivity was reduced, so while physical pathways are enhanced, they don’t seem to be doing anything,” Dr. Khan said. “We don’t know why this occurs, or if this has happened over time and made the brain and heart more vulnerable in some way.”

One possibility is that ,under a significant emotional stress, the brain may divert function from some areas to others to be able to cope, and that this results in reduced functioning in areas of the brain responsible for regulating the heart, Dr. Khan suggested.  

“We believe this study confirms that the brain is involved in Takotsubo syndrome, and we have identified markers in the brain that may be contributing to the condition,” he said.

The researchers are planning to further study these markers and whether it might be possible to modulate these changes with various interventions such as exercise or mindfulness.

“We believe there is some interface between the brain changes and the impact on the heart. We don’t think it is just the release of catecholamines that causes damage to the heart. We think there is something else happening as well,” Dr. Khan commented.  

It is also possible that the hearts of patients with Takotsubo syndrome are predisposed in some way and more vulnerable to this condition occurring. 

“It will be important to obtain a greater understanding of the triggers and identify people who may be vulnerable,” Dr. Khan noted. “Around 10% of individuals who experience Takotsubo syndrome will have a recurrence, so we need to try and develop preventative strategies to reduce this.”

He suggested that possible preventive or therapeutic approaches may involve interventions such as exercise or mindfulness.

This work was supported by National Health Service Grampian Endowment. The authors report no relevant financial relationships.

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

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A new study has identified differences in the brain present in patients with the cardiac disorder Takotsubo syndrome versus control scans, which may lead to new therapeutic targets.

Takotsubo syndrome is an acute heart failure cardiomyopathy mimicking an acute myocardial infarction in its presentation, but on investigation, no obstructive coronary disease is present. The syndrome, which mainly affects women, typically occurs in the aftermath of intense emotional or physical stress and has become known as “broken heart syndrome.”

The mechanism by which emotional processing in the context of stress leads to significant cardiac injury and acute left ventricular dysfunction is not understood. So, the current study examined both structural and functional effects in the brain in patients with Takotsubo syndrome to shed more light on the issue.

“The abnormalities in the thalamus-amygdala-insula and basal ganglia support the concept of involvement of higher-level function centers in Takotsubo syndrome, and interventions aimed at modulating these may be of benefit,” the authors conclude.

The study was published online in JACC: Heart Failure.

Lead author Hilal Khan, MB BCh, BAO, from the University of Aberdeen (Scotland), explained to this news organization that patients with Takotsubo syndrome have a substantial drop in heart function and show an apical ballooning of the heart.

It is a relatively newly defined condition and was first described in 1990 in Japan, and so named because the heart was thought to resemble the Takotsubo pot used by Japanese fishermen to trap octopus.

Although uncommon, the condition is not rare. Dr. Khan estimates that about 1 in 20 women with suspected MI turn out to have Takotsubo syndrome, with cases increasing in times of global stress such as in the recent pandemic.

While patients tend to recover in a few weeks and the pumping function of the heart usually returns to normal, there are some long-term cardiac complications including a reduction in global longitudinal strain, and patients have similar long-term outcomes as those with MI.  

“It is believed that these cardiac changes may be triggered by changes in the brain caused by emotional stress, so we wanted to look at this more closely,” Dr. Khan said.  

There have been a couple of studies published previously looking at brain changes in Takotsubo syndrome, but they haven’t reported patients in the acute stage of the condition and they haven’t compared the patients to controls, he noted.

For the current study, the researchers looked at brain scans for 25 acute Takotsubo patients and in 25 controls matched for age, gender, comorbidities, and medications. All the patients and controls were examined using the same MRI scanner in the same hospital.

“This is the largest structural and functional brain study of acute Takotsubo syndrome patients compared with matched control subjects,” Dr. Khan said.

The researchers looked at many different factors including brain volume in different regions, cortical thickness, small-vessel disease, and functional and structural connectivity to try and obtain a complete holistic view of the brain.

Key findings were that patients with Takotsubo syndrome had smaller brain volumes, compared with matched controls, driven by a reduction in brain surface area. In contrast, the insula and thalamus regions were larger.

“A reduction in brain volume could be caused by inflammation; this is often seen in depression,” Dr. Khan commented.  

The researchers also found that certain areas of the brain had a reduction in functional connectivity, particularly the thalamus – the central autonomic area of the brain, which regulates the autonomic nervous system – and also the insula region, which is also involved in the autonomic regulation of the heart.

They suggest that there may be a loss of parasympathetic inhibition in Takotsubo syndrome, which would fit the theory that Takotsubo brings with it a surge of catecholamines, which could injure the heart.

Reduced functional connectivity was also seen in parts of the basal ganglia, abnormalities of which have been associated with an increased risk of both arrhythmias, and in the amygdala, similar to patients with a tendency to catastrophize events.

The other observation was that there appeared to be an increase in structural connectivity in certain areas of the brain. 

“Structural pathways seem to be increased but functional connectivity was reduced, so while physical pathways are enhanced, they don’t seem to be doing anything,” Dr. Khan said. “We don’t know why this occurs, or if this has happened over time and made the brain and heart more vulnerable in some way.”

One possibility is that ,under a significant emotional stress, the brain may divert function from some areas to others to be able to cope, and that this results in reduced functioning in areas of the brain responsible for regulating the heart, Dr. Khan suggested.  

“We believe this study confirms that the brain is involved in Takotsubo syndrome, and we have identified markers in the brain that may be contributing to the condition,” he said.

The researchers are planning to further study these markers and whether it might be possible to modulate these changes with various interventions such as exercise or mindfulness.

“We believe there is some interface between the brain changes and the impact on the heart. We don’t think it is just the release of catecholamines that causes damage to the heart. We think there is something else happening as well,” Dr. Khan commented.  

It is also possible that the hearts of patients with Takotsubo syndrome are predisposed in some way and more vulnerable to this condition occurring. 

“It will be important to obtain a greater understanding of the triggers and identify people who may be vulnerable,” Dr. Khan noted. “Around 10% of individuals who experience Takotsubo syndrome will have a recurrence, so we need to try and develop preventative strategies to reduce this.”

He suggested that possible preventive or therapeutic approaches may involve interventions such as exercise or mindfulness.

This work was supported by National Health Service Grampian Endowment. The authors report no relevant financial relationships.

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

A new study has identified differences in the brain present in patients with the cardiac disorder Takotsubo syndrome versus control scans, which may lead to new therapeutic targets.

Takotsubo syndrome is an acute heart failure cardiomyopathy mimicking an acute myocardial infarction in its presentation, but on investigation, no obstructive coronary disease is present. The syndrome, which mainly affects women, typically occurs in the aftermath of intense emotional or physical stress and has become known as “broken heart syndrome.”

The mechanism by which emotional processing in the context of stress leads to significant cardiac injury and acute left ventricular dysfunction is not understood. So, the current study examined both structural and functional effects in the brain in patients with Takotsubo syndrome to shed more light on the issue.

“The abnormalities in the thalamus-amygdala-insula and basal ganglia support the concept of involvement of higher-level function centers in Takotsubo syndrome, and interventions aimed at modulating these may be of benefit,” the authors conclude.

The study was published online in JACC: Heart Failure.

Lead author Hilal Khan, MB BCh, BAO, from the University of Aberdeen (Scotland), explained to this news organization that patients with Takotsubo syndrome have a substantial drop in heart function and show an apical ballooning of the heart.

It is a relatively newly defined condition and was first described in 1990 in Japan, and so named because the heart was thought to resemble the Takotsubo pot used by Japanese fishermen to trap octopus.

Although uncommon, the condition is not rare. Dr. Khan estimates that about 1 in 20 women with suspected MI turn out to have Takotsubo syndrome, with cases increasing in times of global stress such as in the recent pandemic.

While patients tend to recover in a few weeks and the pumping function of the heart usually returns to normal, there are some long-term cardiac complications including a reduction in global longitudinal strain, and patients have similar long-term outcomes as those with MI.  

“It is believed that these cardiac changes may be triggered by changes in the brain caused by emotional stress, so we wanted to look at this more closely,” Dr. Khan said.  

There have been a couple of studies published previously looking at brain changes in Takotsubo syndrome, but they haven’t reported patients in the acute stage of the condition and they haven’t compared the patients to controls, he noted.

For the current study, the researchers looked at brain scans for 25 acute Takotsubo patients and in 25 controls matched for age, gender, comorbidities, and medications. All the patients and controls were examined using the same MRI scanner in the same hospital.

“This is the largest structural and functional brain study of acute Takotsubo syndrome patients compared with matched control subjects,” Dr. Khan said.

The researchers looked at many different factors including brain volume in different regions, cortical thickness, small-vessel disease, and functional and structural connectivity to try and obtain a complete holistic view of the brain.

Key findings were that patients with Takotsubo syndrome had smaller brain volumes, compared with matched controls, driven by a reduction in brain surface area. In contrast, the insula and thalamus regions were larger.

“A reduction in brain volume could be caused by inflammation; this is often seen in depression,” Dr. Khan commented.  

The researchers also found that certain areas of the brain had a reduction in functional connectivity, particularly the thalamus – the central autonomic area of the brain, which regulates the autonomic nervous system – and also the insula region, which is also involved in the autonomic regulation of the heart.

They suggest that there may be a loss of parasympathetic inhibition in Takotsubo syndrome, which would fit the theory that Takotsubo brings with it a surge of catecholamines, which could injure the heart.

Reduced functional connectivity was also seen in parts of the basal ganglia, abnormalities of which have been associated with an increased risk of both arrhythmias, and in the amygdala, similar to patients with a tendency to catastrophize events.

The other observation was that there appeared to be an increase in structural connectivity in certain areas of the brain. 

“Structural pathways seem to be increased but functional connectivity was reduced, so while physical pathways are enhanced, they don’t seem to be doing anything,” Dr. Khan said. “We don’t know why this occurs, or if this has happened over time and made the brain and heart more vulnerable in some way.”

One possibility is that ,under a significant emotional stress, the brain may divert function from some areas to others to be able to cope, and that this results in reduced functioning in areas of the brain responsible for regulating the heart, Dr. Khan suggested.  

“We believe this study confirms that the brain is involved in Takotsubo syndrome, and we have identified markers in the brain that may be contributing to the condition,” he said.

The researchers are planning to further study these markers and whether it might be possible to modulate these changes with various interventions such as exercise or mindfulness.

“We believe there is some interface between the brain changes and the impact on the heart. We don’t think it is just the release of catecholamines that causes damage to the heart. We think there is something else happening as well,” Dr. Khan commented.  

It is also possible that the hearts of patients with Takotsubo syndrome are predisposed in some way and more vulnerable to this condition occurring. 

“It will be important to obtain a greater understanding of the triggers and identify people who may be vulnerable,” Dr. Khan noted. “Around 10% of individuals who experience Takotsubo syndrome will have a recurrence, so we need to try and develop preventative strategies to reduce this.”

He suggested that possible preventive or therapeutic approaches may involve interventions such as exercise or mindfulness.

This work was supported by National Health Service Grampian Endowment. The authors report no relevant financial relationships.

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

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How to talk with patients in ways that help them feel heard and understood

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A common sentiment shared by patients who are happy with their health care professionals is, “I feel heard and understood.” How do we become those professionals and make sure that we are doing a good job connecting and communicating with our patients?

Dr. Douglas S. Paauw

Here are a few suggestions on how to do this.
 

Practice intent listening

When a patient shares their symptoms with you, show genuine curiosity and concern. Ask clarifying questions. Ask how the symptom or problem is affecting their day-to-day life. Avoid quick, rapid-fire questions back at the patient. Do not accept a patient self-diagnosis.

When a patient with a first-time headache says they are having a migraine headache, for example, ask many clarifying questions to make sure you can make a diagnosis of headache type, then use all the information you have gathered to educate the patient on what you believe they have.

It is easy to jump to treatment, but we always want to make sure we have the diagnosis correct first. By intently listening, it also makes it much easier to tell a patient you do not know what is causing their symptoms, but that you and the patient will be vigilant for any future clues that may lead to a diagnosis.
 

Use terminology that patients understand

Rachael Gotlieb, MD, and colleagues published an excellent study with eye-opening results on common phrases we use as health care providers and how often patients do not understand them.

Only 9% of patients understood what was meant when they were asked if they have been febrile. Only 2% understood what was meant by “I am concerned the patient has an occult infection.” Only 21% understood that “your xray findings were quite impressive” was bad news.

It is easy to avoid these medical language traps, we just have to check our doctor speak. Ask, “Do you have a fever?” Say, “I am concerned you may have an infection that is hard to find.”

Several other terms we use all the time in explaining things to patients that I have found most patients do not understand are the terms bilateral, systemic, and significant. Think carefully as you explain things to patients and check back to have them repeat to you what they think you said.
 

Be comfortable saying you don’t know

Many symptoms in medicine end up not being diagnosable. When a patient shares symptoms that do not fit a pattern of a disease, it is important to share with them why you think it is okay to wait and watch, even if you do not have a diagnosis.

Patients find it comforting that you are so honest with them. Doing this also has the benefit of gaining patients’ trust when you are sure about something, because it tells them you don’t have an answer for everything.
 

Ask your patients what they think is causing their symptoms

This way, you know what their big fear is. You can address what they are worried about, even if it isn’t something you are considering.

Patients are often fearful of a disease a close friend or relative has, so when they get new symptoms, they fear diseases that we might not think of. By knowing what they are fearful of, you can reassure when appropriate.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at [email protected].

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A common sentiment shared by patients who are happy with their health care professionals is, “I feel heard and understood.” How do we become those professionals and make sure that we are doing a good job connecting and communicating with our patients?

Dr. Douglas S. Paauw

Here are a few suggestions on how to do this.
 

Practice intent listening

When a patient shares their symptoms with you, show genuine curiosity and concern. Ask clarifying questions. Ask how the symptom or problem is affecting their day-to-day life. Avoid quick, rapid-fire questions back at the patient. Do not accept a patient self-diagnosis.

When a patient with a first-time headache says they are having a migraine headache, for example, ask many clarifying questions to make sure you can make a diagnosis of headache type, then use all the information you have gathered to educate the patient on what you believe they have.

It is easy to jump to treatment, but we always want to make sure we have the diagnosis correct first. By intently listening, it also makes it much easier to tell a patient you do not know what is causing their symptoms, but that you and the patient will be vigilant for any future clues that may lead to a diagnosis.
 

Use terminology that patients understand

Rachael Gotlieb, MD, and colleagues published an excellent study with eye-opening results on common phrases we use as health care providers and how often patients do not understand them.

Only 9% of patients understood what was meant when they were asked if they have been febrile. Only 2% understood what was meant by “I am concerned the patient has an occult infection.” Only 21% understood that “your xray findings were quite impressive” was bad news.

It is easy to avoid these medical language traps, we just have to check our doctor speak. Ask, “Do you have a fever?” Say, “I am concerned you may have an infection that is hard to find.”

Several other terms we use all the time in explaining things to patients that I have found most patients do not understand are the terms bilateral, systemic, and significant. Think carefully as you explain things to patients and check back to have them repeat to you what they think you said.
 

Be comfortable saying you don’t know

Many symptoms in medicine end up not being diagnosable. When a patient shares symptoms that do not fit a pattern of a disease, it is important to share with them why you think it is okay to wait and watch, even if you do not have a diagnosis.

Patients find it comforting that you are so honest with them. Doing this also has the benefit of gaining patients’ trust when you are sure about something, because it tells them you don’t have an answer for everything.
 

Ask your patients what they think is causing their symptoms

This way, you know what their big fear is. You can address what they are worried about, even if it isn’t something you are considering.

Patients are often fearful of a disease a close friend or relative has, so when they get new symptoms, they fear diseases that we might not think of. By knowing what they are fearful of, you can reassure when appropriate.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at [email protected].

A common sentiment shared by patients who are happy with their health care professionals is, “I feel heard and understood.” How do we become those professionals and make sure that we are doing a good job connecting and communicating with our patients?

Dr. Douglas S. Paauw

Here are a few suggestions on how to do this.
 

Practice intent listening

When a patient shares their symptoms with you, show genuine curiosity and concern. Ask clarifying questions. Ask how the symptom or problem is affecting their day-to-day life. Avoid quick, rapid-fire questions back at the patient. Do not accept a patient self-diagnosis.

When a patient with a first-time headache says they are having a migraine headache, for example, ask many clarifying questions to make sure you can make a diagnosis of headache type, then use all the information you have gathered to educate the patient on what you believe they have.

It is easy to jump to treatment, but we always want to make sure we have the diagnosis correct first. By intently listening, it also makes it much easier to tell a patient you do not know what is causing their symptoms, but that you and the patient will be vigilant for any future clues that may lead to a diagnosis.
 

Use terminology that patients understand

Rachael Gotlieb, MD, and colleagues published an excellent study with eye-opening results on common phrases we use as health care providers and how often patients do not understand them.

Only 9% of patients understood what was meant when they were asked if they have been febrile. Only 2% understood what was meant by “I am concerned the patient has an occult infection.” Only 21% understood that “your xray findings were quite impressive” was bad news.

It is easy to avoid these medical language traps, we just have to check our doctor speak. Ask, “Do you have a fever?” Say, “I am concerned you may have an infection that is hard to find.”

Several other terms we use all the time in explaining things to patients that I have found most patients do not understand are the terms bilateral, systemic, and significant. Think carefully as you explain things to patients and check back to have them repeat to you what they think you said.
 

Be comfortable saying you don’t know

Many symptoms in medicine end up not being diagnosable. When a patient shares symptoms that do not fit a pattern of a disease, it is important to share with them why you think it is okay to wait and watch, even if you do not have a diagnosis.

Patients find it comforting that you are so honest with them. Doing this also has the benefit of gaining patients’ trust when you are sure about something, because it tells them you don’t have an answer for everything.
 

Ask your patients what they think is causing their symptoms

This way, you know what their big fear is. You can address what they are worried about, even if it isn’t something you are considering.

Patients are often fearful of a disease a close friend or relative has, so when they get new symptoms, they fear diseases that we might not think of. By knowing what they are fearful of, you can reassure when appropriate.

Dr. Paauw is professor of medicine in the division of general internal medicine at the University of Washington, Seattle, and he serves as third-year medical student clerkship director at the University of Washington. Contact Dr. Paauw at [email protected].

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HRT may prevent Alzheimer’s in high-risk women

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Hormone replacement therapy (HRT) introduced early during the menopausal transition may protect against Alzheimer’s dementia in women carrying the APOE4 gene, new research suggests.

Results from a cohort study of almost 1,200 women showed that use of HRT was associated with higher delayed memory scores and larger entorhinal and hippocampal brain volumes – areas that are affected early by Alzheimer’s disease (AD) pathology.

HRT was also found to be most effective, as seen by larger hippocampal volume, when introduced during early perimenopause.

“Clinicians are very much aware of the susceptibility of women to cognitive disturbances during menopause,” lead author Rasha Saleh, MD, senior research associate, University of East Anglia (England), said in an interview.

“Identifying the at-risk APOE4 women and early HRT introduction can be of benefit. Confirming our findings in a clinical trial would be the next step forward,” Dr. Saleh said.

The findings were published online in Alzheimer’s Research and Therapy.
 

Personalized approaches

Dr. Saleh noted that estrogen receptors are localized in various areas of the brain, including cognition-related areas. Estrogen regulates such things as neuroinflammatory status, glucose utilization, and lipid metabolism.

“The decline of estrogen during menopause can lead to disturbance in these functions, which can accelerate AD-related pathology,” she said.

HRT during the menopausal transition and afterward is “being considered as a strategy to mitigate cognitive decline,” the investigators wrote. Early observational studies have suggested that oral estrogen “may be protective against dementia,” but results of clinical trials have been inconsistent, and some have even shown “harmful effects.”

The current researchers were “interested in the personalized approaches in the prevention of AD,” Dr. Saleh said. Preclinical and pilot data from her group have shown that women with APOE4 have “better cognitive test scores with nutritional and hormonal interventions.”

This led Dr. Saleh to hypothesize that HRT would be of more cognitive benefit for those with versus without APOE4, particularly when introduced early during the menopausal transition.

To investigate this hypothesis, the researchers analyzed baseline data from participants in the European Prevention of Alzheimer’s Dementia (EPAD) cohort. This project was initiated in 2015 with the aim of developing longitudinal models over the entire course of AD prior to dementia clinical diagnosis.

Participants were recruited from 10 European countries. All were required to be at least 50 years old, to have not been diagnosed with dementia at baseline, and to have no medical or psychiatric illness that could potentially exclude them from further research.

The current study included 1,178 women (mean age, 65.1 years), who were divided by genotype into non-APOE4 and APOE4 groups. HRT treatment for current or previous users included estrogen alone or estrogen plus progestogens via oral or transdermal administration routes, and at different doses.

The four tests used to assess cognition were the Mini-Mental State Examination dot counting to evaluate verbal working memory, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score, the Four Mountain Test, and the supermarket trolley virtual reality test.

Brain MRI data were collected. The researchers focused on the medial temporal lobe as the “main brain region regulating cognition and memory processing.” This lobe includes the hippocampus, the parahippocampus, the entorhinal cortex, and the amygdala.
 

‘Critical window’

The researchers found a “trend” toward an APOE-HRT interaction (P-interaction = .097) for the total RBANS score. In particular, it was significant for the RBANS delayed memory index, where scores were consistently higher for women with APOE4 who had received HRT, compared with all other groups (P-interaction = .009).

Within-genotype group comparisons showed that HRT users had a higher RBANS total scale score and delayed memory index (P = .045 and P = .002, respectively), but only among APOE4 carriers. Effect size analyses showed a large effect of HRT use on the Four Mountain Test score and the supermarket trolley virtual reality test score (Cohen’s d = 0.988 and 1.2, respectively).

“This large effect was found only in APOE4 carriers,” the investigators noted.

Similarly, a moderate to large effect of HRT on the left entorhinal volume was observed in APOE4 carriers (Cohen’s d = 0.63).

In members of the APOE4 group who received HRT, the left entorhinal and left and right amygdala volumes were larger, compared with both no-APOE4 and non-HRT users (P-interaction = .002, .003, and .005, respectively). Similar trends were observed for the right entorhinal volume (P = .074).

In addition, among HRT users, the left entorhinal volume was larger (P = .03); the right and left anterior cingulate gyrus volumes were smaller (P = .003 and .062, respectively); and the left superior frontal gyrus volume was larger (P = .009) in comparison with women who did not receive HRT, independently of their APOE genotype.

Early use of HRT among APOE4 carriers was associated with larger right and left hippocampal volume (P = .035 and P = .028, respectively) – an association not found in non-APOE4 carriers. The association was also not significant when participants were not stratified by APOE genotype.

“The key important point here is the timing, or the ‘critical window,’ when HRT can be of most benefit,” Dr. Saleh said. “This is most beneficial when introduced early, before the neuropathology becomes irreversible.”

Study limitations include its cross-sectional design, which precludes the establishment of a causal relationship, and the fact that information regarding the type and dose of estrogen was not available for all participants.

HRT is not without risk, Dr. Saleh noted. She recommended that clinicians “carry out various screening tests to make sure that a woman is eligible for HRT and not at risk of hypercoagulability, for instance.”
 

Risk-benefit ratio

In a comment, Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, called the study “exactly the kind of work that needs to be done.”

Dr. Fillit, who was not involved with the current research, is a clinical professor of geriatric medicine, palliative care medicine, and neuroscience at Mount Sinai Hospital, New York.

He compared the process with that of osteoporosis. “We know that if women are treated [with HRT] at the time of the menopause, you can prevent the rapid bone loss that occurs with rapid estrogen loss. But if you wait 5, 10 years out, once the bone loss has occurred, the HRT doesn’t really have any impact on osteoporosis risk because the horse is already out of the barn,” he said.

Although HRT carries risks, “they can clearly be managed; and if it’s proven that estrogen or hormone replacement around the time of the menopause can be protective [against AD], the risk-benefit ratio of HRT could be in favor of treatment,” Dr. Fillit added.

The study was conducted as part of the Medical Research Council NuBrain Consortium. The investigators and Dr. Fillit reported no relevant financial relationships.

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

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Hormone replacement therapy (HRT) introduced early during the menopausal transition may protect against Alzheimer’s dementia in women carrying the APOE4 gene, new research suggests.

Results from a cohort study of almost 1,200 women showed that use of HRT was associated with higher delayed memory scores and larger entorhinal and hippocampal brain volumes – areas that are affected early by Alzheimer’s disease (AD) pathology.

HRT was also found to be most effective, as seen by larger hippocampal volume, when introduced during early perimenopause.

“Clinicians are very much aware of the susceptibility of women to cognitive disturbances during menopause,” lead author Rasha Saleh, MD, senior research associate, University of East Anglia (England), said in an interview.

“Identifying the at-risk APOE4 women and early HRT introduction can be of benefit. Confirming our findings in a clinical trial would be the next step forward,” Dr. Saleh said.

The findings were published online in Alzheimer’s Research and Therapy.
 

Personalized approaches

Dr. Saleh noted that estrogen receptors are localized in various areas of the brain, including cognition-related areas. Estrogen regulates such things as neuroinflammatory status, glucose utilization, and lipid metabolism.

“The decline of estrogen during menopause can lead to disturbance in these functions, which can accelerate AD-related pathology,” she said.

HRT during the menopausal transition and afterward is “being considered as a strategy to mitigate cognitive decline,” the investigators wrote. Early observational studies have suggested that oral estrogen “may be protective against dementia,” but results of clinical trials have been inconsistent, and some have even shown “harmful effects.”

The current researchers were “interested in the personalized approaches in the prevention of AD,” Dr. Saleh said. Preclinical and pilot data from her group have shown that women with APOE4 have “better cognitive test scores with nutritional and hormonal interventions.”

This led Dr. Saleh to hypothesize that HRT would be of more cognitive benefit for those with versus without APOE4, particularly when introduced early during the menopausal transition.

To investigate this hypothesis, the researchers analyzed baseline data from participants in the European Prevention of Alzheimer’s Dementia (EPAD) cohort. This project was initiated in 2015 with the aim of developing longitudinal models over the entire course of AD prior to dementia clinical diagnosis.

Participants were recruited from 10 European countries. All were required to be at least 50 years old, to have not been diagnosed with dementia at baseline, and to have no medical or psychiatric illness that could potentially exclude them from further research.

The current study included 1,178 women (mean age, 65.1 years), who were divided by genotype into non-APOE4 and APOE4 groups. HRT treatment for current or previous users included estrogen alone or estrogen plus progestogens via oral or transdermal administration routes, and at different doses.

The four tests used to assess cognition were the Mini-Mental State Examination dot counting to evaluate verbal working memory, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score, the Four Mountain Test, and the supermarket trolley virtual reality test.

Brain MRI data were collected. The researchers focused on the medial temporal lobe as the “main brain region regulating cognition and memory processing.” This lobe includes the hippocampus, the parahippocampus, the entorhinal cortex, and the amygdala.
 

‘Critical window’

The researchers found a “trend” toward an APOE-HRT interaction (P-interaction = .097) for the total RBANS score. In particular, it was significant for the RBANS delayed memory index, where scores were consistently higher for women with APOE4 who had received HRT, compared with all other groups (P-interaction = .009).

Within-genotype group comparisons showed that HRT users had a higher RBANS total scale score and delayed memory index (P = .045 and P = .002, respectively), but only among APOE4 carriers. Effect size analyses showed a large effect of HRT use on the Four Mountain Test score and the supermarket trolley virtual reality test score (Cohen’s d = 0.988 and 1.2, respectively).

“This large effect was found only in APOE4 carriers,” the investigators noted.

Similarly, a moderate to large effect of HRT on the left entorhinal volume was observed in APOE4 carriers (Cohen’s d = 0.63).

In members of the APOE4 group who received HRT, the left entorhinal and left and right amygdala volumes were larger, compared with both no-APOE4 and non-HRT users (P-interaction = .002, .003, and .005, respectively). Similar trends were observed for the right entorhinal volume (P = .074).

In addition, among HRT users, the left entorhinal volume was larger (P = .03); the right and left anterior cingulate gyrus volumes were smaller (P = .003 and .062, respectively); and the left superior frontal gyrus volume was larger (P = .009) in comparison with women who did not receive HRT, independently of their APOE genotype.

Early use of HRT among APOE4 carriers was associated with larger right and left hippocampal volume (P = .035 and P = .028, respectively) – an association not found in non-APOE4 carriers. The association was also not significant when participants were not stratified by APOE genotype.

“The key important point here is the timing, or the ‘critical window,’ when HRT can be of most benefit,” Dr. Saleh said. “This is most beneficial when introduced early, before the neuropathology becomes irreversible.”

Study limitations include its cross-sectional design, which precludes the establishment of a causal relationship, and the fact that information regarding the type and dose of estrogen was not available for all participants.

HRT is not without risk, Dr. Saleh noted. She recommended that clinicians “carry out various screening tests to make sure that a woman is eligible for HRT and not at risk of hypercoagulability, for instance.”
 

Risk-benefit ratio

In a comment, Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, called the study “exactly the kind of work that needs to be done.”

Dr. Fillit, who was not involved with the current research, is a clinical professor of geriatric medicine, palliative care medicine, and neuroscience at Mount Sinai Hospital, New York.

He compared the process with that of osteoporosis. “We know that if women are treated [with HRT] at the time of the menopause, you can prevent the rapid bone loss that occurs with rapid estrogen loss. But if you wait 5, 10 years out, once the bone loss has occurred, the HRT doesn’t really have any impact on osteoporosis risk because the horse is already out of the barn,” he said.

Although HRT carries risks, “they can clearly be managed; and if it’s proven that estrogen or hormone replacement around the time of the menopause can be protective [against AD], the risk-benefit ratio of HRT could be in favor of treatment,” Dr. Fillit added.

The study was conducted as part of the Medical Research Council NuBrain Consortium. The investigators and Dr. Fillit reported no relevant financial relationships.

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

 

Hormone replacement therapy (HRT) introduced early during the menopausal transition may protect against Alzheimer’s dementia in women carrying the APOE4 gene, new research suggests.

Results from a cohort study of almost 1,200 women showed that use of HRT was associated with higher delayed memory scores and larger entorhinal and hippocampal brain volumes – areas that are affected early by Alzheimer’s disease (AD) pathology.

HRT was also found to be most effective, as seen by larger hippocampal volume, when introduced during early perimenopause.

“Clinicians are very much aware of the susceptibility of women to cognitive disturbances during menopause,” lead author Rasha Saleh, MD, senior research associate, University of East Anglia (England), said in an interview.

“Identifying the at-risk APOE4 women and early HRT introduction can be of benefit. Confirming our findings in a clinical trial would be the next step forward,” Dr. Saleh said.

The findings were published online in Alzheimer’s Research and Therapy.
 

Personalized approaches

Dr. Saleh noted that estrogen receptors are localized in various areas of the brain, including cognition-related areas. Estrogen regulates such things as neuroinflammatory status, glucose utilization, and lipid metabolism.

“The decline of estrogen during menopause can lead to disturbance in these functions, which can accelerate AD-related pathology,” she said.

HRT during the menopausal transition and afterward is “being considered as a strategy to mitigate cognitive decline,” the investigators wrote. Early observational studies have suggested that oral estrogen “may be protective against dementia,” but results of clinical trials have been inconsistent, and some have even shown “harmful effects.”

The current researchers were “interested in the personalized approaches in the prevention of AD,” Dr. Saleh said. Preclinical and pilot data from her group have shown that women with APOE4 have “better cognitive test scores with nutritional and hormonal interventions.”

This led Dr. Saleh to hypothesize that HRT would be of more cognitive benefit for those with versus without APOE4, particularly when introduced early during the menopausal transition.

To investigate this hypothesis, the researchers analyzed baseline data from participants in the European Prevention of Alzheimer’s Dementia (EPAD) cohort. This project was initiated in 2015 with the aim of developing longitudinal models over the entire course of AD prior to dementia clinical diagnosis.

Participants were recruited from 10 European countries. All were required to be at least 50 years old, to have not been diagnosed with dementia at baseline, and to have no medical or psychiatric illness that could potentially exclude them from further research.

The current study included 1,178 women (mean age, 65.1 years), who were divided by genotype into non-APOE4 and APOE4 groups. HRT treatment for current or previous users included estrogen alone or estrogen plus progestogens via oral or transdermal administration routes, and at different doses.

The four tests used to assess cognition were the Mini-Mental State Examination dot counting to evaluate verbal working memory, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score, the Four Mountain Test, and the supermarket trolley virtual reality test.

Brain MRI data were collected. The researchers focused on the medial temporal lobe as the “main brain region regulating cognition and memory processing.” This lobe includes the hippocampus, the parahippocampus, the entorhinal cortex, and the amygdala.
 

‘Critical window’

The researchers found a “trend” toward an APOE-HRT interaction (P-interaction = .097) for the total RBANS score. In particular, it was significant for the RBANS delayed memory index, where scores were consistently higher for women with APOE4 who had received HRT, compared with all other groups (P-interaction = .009).

Within-genotype group comparisons showed that HRT users had a higher RBANS total scale score and delayed memory index (P = .045 and P = .002, respectively), but only among APOE4 carriers. Effect size analyses showed a large effect of HRT use on the Four Mountain Test score and the supermarket trolley virtual reality test score (Cohen’s d = 0.988 and 1.2, respectively).

“This large effect was found only in APOE4 carriers,” the investigators noted.

Similarly, a moderate to large effect of HRT on the left entorhinal volume was observed in APOE4 carriers (Cohen’s d = 0.63).

In members of the APOE4 group who received HRT, the left entorhinal and left and right amygdala volumes were larger, compared with both no-APOE4 and non-HRT users (P-interaction = .002, .003, and .005, respectively). Similar trends were observed for the right entorhinal volume (P = .074).

In addition, among HRT users, the left entorhinal volume was larger (P = .03); the right and left anterior cingulate gyrus volumes were smaller (P = .003 and .062, respectively); and the left superior frontal gyrus volume was larger (P = .009) in comparison with women who did not receive HRT, independently of their APOE genotype.

Early use of HRT among APOE4 carriers was associated with larger right and left hippocampal volume (P = .035 and P = .028, respectively) – an association not found in non-APOE4 carriers. The association was also not significant when participants were not stratified by APOE genotype.

“The key important point here is the timing, or the ‘critical window,’ when HRT can be of most benefit,” Dr. Saleh said. “This is most beneficial when introduced early, before the neuropathology becomes irreversible.”

Study limitations include its cross-sectional design, which precludes the establishment of a causal relationship, and the fact that information regarding the type and dose of estrogen was not available for all participants.

HRT is not without risk, Dr. Saleh noted. She recommended that clinicians “carry out various screening tests to make sure that a woman is eligible for HRT and not at risk of hypercoagulability, for instance.”
 

Risk-benefit ratio

In a comment, Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, called the study “exactly the kind of work that needs to be done.”

Dr. Fillit, who was not involved with the current research, is a clinical professor of geriatric medicine, palliative care medicine, and neuroscience at Mount Sinai Hospital, New York.

He compared the process with that of osteoporosis. “We know that if women are treated [with HRT] at the time of the menopause, you can prevent the rapid bone loss that occurs with rapid estrogen loss. But if you wait 5, 10 years out, once the bone loss has occurred, the HRT doesn’t really have any impact on osteoporosis risk because the horse is already out of the barn,” he said.

Although HRT carries risks, “they can clearly be managed; and if it’s proven that estrogen or hormone replacement around the time of the menopause can be protective [against AD], the risk-benefit ratio of HRT could be in favor of treatment,” Dr. Fillit added.

The study was conducted as part of the Medical Research Council NuBrain Consortium. The investigators and Dr. Fillit reported no relevant financial relationships.

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

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Possible bivalent vaccine link to strokes in people over 65

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A vaccine database found a possible link between the Pfizer/BioNTech bivalent COVID-19 vaccine and ischemic strokes in people over 65 who got the shot, the Centers for Disease Control and Prevention and the Food and Drug Administration said in a joint news release.

The release did not recommend people change their vaccine practices, saying the database finding probably did not represent a “true clinical risk.” The CDC said everybody, including people over 65, should stay up to date on their COVID vaccines, including the bivalent booster.

The news release said the Vaccine Safety Datalink (VSD), “a near real-time surveillance system,” raised a safety concern about the Pfizer/BioNTech booster.

“Rapid-response investigation of the signal in the VSD raised a question of whether people 65 and older who have received the Pfizer-BioNTech COVID-19 Vaccine, Bivalent were more likely to have an ischemic stroke in the 21 days following vaccination compared with days 22-44 following vaccination,” the news release said.

Ischemic strokes are blockages of blood to the brain, often caused by blood clots.

“Although the totality of the data currently suggests that it is very unlikely that the signal in VSD (Vaccine Safety Datalink) represents a true clinical risk, we believe it is important to share this information with the public, as we have in the past, when one of our safety monitoring systems detects a signal,” the release said.

No higher likelihood of strokes linked to the Pfizer bivalent vaccine had been found by Pfizer/BioNTech, the Department of Veterans Affairs, the Vaccine Adverse Event Reporting System maintained by the CDC and the FDA, or other agencies that monitor reactions of vaccines, the news release said. No safety issues about strokes have been identified with the Moderna bivalent vaccine. 

CNN, citing a CDC official, reported that about 550,000 seniors who got Pfizer bivalent boosters were tracked by the VSD, and 130 of them had strokes within 3 weeks of getting the shot. None of those 130 people died, CNN said. The official spoke on the condition of anonymity because they weren’t authorized to share the data. 

The issue will be discussed at the January meeting of the FDA’s Vaccines and Related Biological Products Advisory Committee.

In a joint statement, Pfizer and BioNTech said: “Neither Pfizer and BioNTech nor the CDC or FDA have observed similar findings across numerous other monitoring systems in the U.S. and globally and there is no evidence to conclude that ischemic stroke is associated with the use of the companies’ COVID-19 vaccines.”

Bivalent boosters contain two strains of vaccine – one to protect against the original COVID-19 virus and another targeting Omicron subvariants.

A version of this article first appeared on WebMD.com.

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A vaccine database found a possible link between the Pfizer/BioNTech bivalent COVID-19 vaccine and ischemic strokes in people over 65 who got the shot, the Centers for Disease Control and Prevention and the Food and Drug Administration said in a joint news release.

The release did not recommend people change their vaccine practices, saying the database finding probably did not represent a “true clinical risk.” The CDC said everybody, including people over 65, should stay up to date on their COVID vaccines, including the bivalent booster.

The news release said the Vaccine Safety Datalink (VSD), “a near real-time surveillance system,” raised a safety concern about the Pfizer/BioNTech booster.

“Rapid-response investigation of the signal in the VSD raised a question of whether people 65 and older who have received the Pfizer-BioNTech COVID-19 Vaccine, Bivalent were more likely to have an ischemic stroke in the 21 days following vaccination compared with days 22-44 following vaccination,” the news release said.

Ischemic strokes are blockages of blood to the brain, often caused by blood clots.

“Although the totality of the data currently suggests that it is very unlikely that the signal in VSD (Vaccine Safety Datalink) represents a true clinical risk, we believe it is important to share this information with the public, as we have in the past, when one of our safety monitoring systems detects a signal,” the release said.

No higher likelihood of strokes linked to the Pfizer bivalent vaccine had been found by Pfizer/BioNTech, the Department of Veterans Affairs, the Vaccine Adverse Event Reporting System maintained by the CDC and the FDA, or other agencies that monitor reactions of vaccines, the news release said. No safety issues about strokes have been identified with the Moderna bivalent vaccine. 

CNN, citing a CDC official, reported that about 550,000 seniors who got Pfizer bivalent boosters were tracked by the VSD, and 130 of them had strokes within 3 weeks of getting the shot. None of those 130 people died, CNN said. The official spoke on the condition of anonymity because they weren’t authorized to share the data. 

The issue will be discussed at the January meeting of the FDA’s Vaccines and Related Biological Products Advisory Committee.

In a joint statement, Pfizer and BioNTech said: “Neither Pfizer and BioNTech nor the CDC or FDA have observed similar findings across numerous other monitoring systems in the U.S. and globally and there is no evidence to conclude that ischemic stroke is associated with the use of the companies’ COVID-19 vaccines.”

Bivalent boosters contain two strains of vaccine – one to protect against the original COVID-19 virus and another targeting Omicron subvariants.

A version of this article first appeared on WebMD.com.

A vaccine database found a possible link between the Pfizer/BioNTech bivalent COVID-19 vaccine and ischemic strokes in people over 65 who got the shot, the Centers for Disease Control and Prevention and the Food and Drug Administration said in a joint news release.

The release did not recommend people change their vaccine practices, saying the database finding probably did not represent a “true clinical risk.” The CDC said everybody, including people over 65, should stay up to date on their COVID vaccines, including the bivalent booster.

The news release said the Vaccine Safety Datalink (VSD), “a near real-time surveillance system,” raised a safety concern about the Pfizer/BioNTech booster.

“Rapid-response investigation of the signal in the VSD raised a question of whether people 65 and older who have received the Pfizer-BioNTech COVID-19 Vaccine, Bivalent were more likely to have an ischemic stroke in the 21 days following vaccination compared with days 22-44 following vaccination,” the news release said.

Ischemic strokes are blockages of blood to the brain, often caused by blood clots.

“Although the totality of the data currently suggests that it is very unlikely that the signal in VSD (Vaccine Safety Datalink) represents a true clinical risk, we believe it is important to share this information with the public, as we have in the past, when one of our safety monitoring systems detects a signal,” the release said.

No higher likelihood of strokes linked to the Pfizer bivalent vaccine had been found by Pfizer/BioNTech, the Department of Veterans Affairs, the Vaccine Adverse Event Reporting System maintained by the CDC and the FDA, or other agencies that monitor reactions of vaccines, the news release said. No safety issues about strokes have been identified with the Moderna bivalent vaccine. 

CNN, citing a CDC official, reported that about 550,000 seniors who got Pfizer bivalent boosters were tracked by the VSD, and 130 of them had strokes within 3 weeks of getting the shot. None of those 130 people died, CNN said. The official spoke on the condition of anonymity because they weren’t authorized to share the data. 

The issue will be discussed at the January meeting of the FDA’s Vaccines and Related Biological Products Advisory Committee.

In a joint statement, Pfizer and BioNTech said: “Neither Pfizer and BioNTech nor the CDC or FDA have observed similar findings across numerous other monitoring systems in the U.S. and globally and there is no evidence to conclude that ischemic stroke is associated with the use of the companies’ COVID-19 vaccines.”

Bivalent boosters contain two strains of vaccine – one to protect against the original COVID-19 virus and another targeting Omicron subvariants.

A version of this article first appeared on WebMD.com.

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Nearly 50% of patients with dementia experience falls

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Nearly half of older adults with dementia experience falls, suggests new research that also identifies multiple risk factors for these falls.

In a study of more than 5,500 participants, 45.5% of those with dementia experienced one or more falls, compared with 30.9% of their peers without dementia.

Vision impairment and living with a spouse were among the strongest predictors of future fall risk among participants living with dementia. Interestingly, high neighborhood social deprivation, which is reflected by such things as income and education, was associated with lower odds of falling.

Overall, the results highlight the need for a multidisciplinary approach to preventing falls among elderly individuals with dementia, said lead author Safiyyah M. Okoye, PhD, assistant professor, College of Nursing and Health Professions, Drexel University, Philadelphia.

“We need to consider different dimensions and figure out how we can try to go beyond the clinic in our interactions,” she said.

Dr. Okoye noted that in addition to reviewing medications that may contribute to falls and screening for vision problems, clinicians might also consider resources to improve the home environment and ensure that families have appropriate caregiving.

The findings were published online  in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association.
 

No ‘silver bullet’

Every year, falls cause millions of injuries in older adults, and those with dementia are especially vulnerable. This population has twice the risk of falling and up to three times the risk of incurring serious fall-related injuries, such as fractures, the researchers noted.

Falls are a leading cause of hospitalization among those with dementia. Previous evidence has shown that persons with dementia are more likely to experience negative health consequences, such as delirium, while in hospital, compared with those without dementia. Even minor fall-related injuries are associated with the patient’s being discharged to a nursing home rather than returning home.

Dr. Okoye stressed that many factors contribute to falls, including health status; function, such as the ability to walk and balance; medications; home environment; and activity level.

“There are multidimensional aspects, and we can’t just find one silver bullet to address falls. It should be addressed comprehensively,” she said.

Existing studies “overwhelmingly” focus on factors related to health and function that could be addressed in the doctor’s office or with a referral, rather than on environmental and social factors, Dr. Okoye noted.

And even though the risk of falling is high among community-dwelling seniors with dementia, very few studies have addressed the risk of falls among these adults, she added.

The new analysis included a nationally representative sample of 5,581 community-dwelling adults who participated in both the 2015 and 2016 National Health and Aging Trends Study (NHATS). The NHATS is a population-based survey of health and disability trends and trajectories among Americans aged 65 years and older.

During interviews, participants were asked, personally or by proxy, about falls during the previous 12 months. Having fallen at baseline was evaluated as a possible predictor of falls in the subsequent 12 months.

To determine probable dementia, researchers asked whether a doctor had ever told the participants that they had dementia or Alzheimer’s disease. They also used a dementia screening questionnaire and neuropsychological tests of memory, orientation, and executive function.

Of the total sample, most (n = 5,093) did not have dementia.

Physical environmental factors that were assessed included conditions at home, such as clutter, tripping hazards, and structural issues, as well as neighborhood social and economic deprivation – such as income, education levels, and employment status.
 

 

 

Fall rates and counterintuitive findings

Results showed that significantly more of those with dementia than without experienced one or more falls (45.5% vs. 30.9%; P < .001).

In addition, a history of falling was significantly associated with subsequent falls among those with dementia (odds ratio, 6.20; 95% confidence interval, 3.81-10.09), as was vision impairment (OR, 2.22; 95% CI, 1.12-4.40) and living with a spouse versus alone (OR, 2.43; 95% CI, 1.09-5.43).

A possible explanation for higher fall risk among those living with a partner is that those living alone usually have better functioning, the investigators noted. Also, live-in partners tend to be of a similar age as the person with dementia and may have challenges of their own.

Interestingly, high neighborhood social deprivation was associated with lower odds of falling (OR, 0.55 for the highest deprivation scores; 95% CI, 0.31-0.98), a finding Dr. Okoye said was “counterintuitive.”

This result could be related to the social environment, she noted. “Maybe there are more people around in the house, more people with eyes on the person, or more people in the community who know the person. Despite the low economic resources, there could be social resources there,” she said.

The new findings underscore the idea that falling is a multidimensional phenomenon among older adults with dementia as well as those without dementia, Dr. Okoye noted.

Doctors can play a role in reducing falls among patients with dementia by asking about falls, possibly eliminating medications that are associated with risk of falling, and screening for and correcting vision and hearing impairments, she suggested.

They may also help determine household hazards for a patient, such as clutter and poor lighting, and ensure that these are addressed, Dr. Okoye added.
 

No surprise

Commenting on the study, David S. Knopman, MD, a clinical neurologist at Mayo Clinic, Rochester, Minn., said the finding that visual impairment and a prior history of falling are predictive of subsequent falls “comes as no surprise.”

Dr. Knopman, whose research focuses on late-life cognitive disorders, was not involved with the current study.

Risk reduction is “of course” a key management goal, he said. “Vigilance and optimizing the patient’s living space to reduce fall risks are the major strategies,” he added.

Dr. Knopman reiterated that falls among those with dementia are associated with higher mortality and often lead to loss of the capacity to live outside of an institution.

The study was supported by the National Institute on Aging. The investigators and Dr. Knopman report no relevant financial relationships.

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

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Nearly half of older adults with dementia experience falls, suggests new research that also identifies multiple risk factors for these falls.

In a study of more than 5,500 participants, 45.5% of those with dementia experienced one or more falls, compared with 30.9% of their peers without dementia.

Vision impairment and living with a spouse were among the strongest predictors of future fall risk among participants living with dementia. Interestingly, high neighborhood social deprivation, which is reflected by such things as income and education, was associated with lower odds of falling.

Overall, the results highlight the need for a multidisciplinary approach to preventing falls among elderly individuals with dementia, said lead author Safiyyah M. Okoye, PhD, assistant professor, College of Nursing and Health Professions, Drexel University, Philadelphia.

“We need to consider different dimensions and figure out how we can try to go beyond the clinic in our interactions,” she said.

Dr. Okoye noted that in addition to reviewing medications that may contribute to falls and screening for vision problems, clinicians might also consider resources to improve the home environment and ensure that families have appropriate caregiving.

The findings were published online  in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association.
 

No ‘silver bullet’

Every year, falls cause millions of injuries in older adults, and those with dementia are especially vulnerable. This population has twice the risk of falling and up to three times the risk of incurring serious fall-related injuries, such as fractures, the researchers noted.

Falls are a leading cause of hospitalization among those with dementia. Previous evidence has shown that persons with dementia are more likely to experience negative health consequences, such as delirium, while in hospital, compared with those without dementia. Even minor fall-related injuries are associated with the patient’s being discharged to a nursing home rather than returning home.

Dr. Okoye stressed that many factors contribute to falls, including health status; function, such as the ability to walk and balance; medications; home environment; and activity level.

“There are multidimensional aspects, and we can’t just find one silver bullet to address falls. It should be addressed comprehensively,” she said.

Existing studies “overwhelmingly” focus on factors related to health and function that could be addressed in the doctor’s office or with a referral, rather than on environmental and social factors, Dr. Okoye noted.

And even though the risk of falling is high among community-dwelling seniors with dementia, very few studies have addressed the risk of falls among these adults, she added.

The new analysis included a nationally representative sample of 5,581 community-dwelling adults who participated in both the 2015 and 2016 National Health and Aging Trends Study (NHATS). The NHATS is a population-based survey of health and disability trends and trajectories among Americans aged 65 years and older.

During interviews, participants were asked, personally or by proxy, about falls during the previous 12 months. Having fallen at baseline was evaluated as a possible predictor of falls in the subsequent 12 months.

To determine probable dementia, researchers asked whether a doctor had ever told the participants that they had dementia or Alzheimer’s disease. They also used a dementia screening questionnaire and neuropsychological tests of memory, orientation, and executive function.

Of the total sample, most (n = 5,093) did not have dementia.

Physical environmental factors that were assessed included conditions at home, such as clutter, tripping hazards, and structural issues, as well as neighborhood social and economic deprivation – such as income, education levels, and employment status.
 

 

 

Fall rates and counterintuitive findings

Results showed that significantly more of those with dementia than without experienced one or more falls (45.5% vs. 30.9%; P < .001).

In addition, a history of falling was significantly associated with subsequent falls among those with dementia (odds ratio, 6.20; 95% confidence interval, 3.81-10.09), as was vision impairment (OR, 2.22; 95% CI, 1.12-4.40) and living with a spouse versus alone (OR, 2.43; 95% CI, 1.09-5.43).

A possible explanation for higher fall risk among those living with a partner is that those living alone usually have better functioning, the investigators noted. Also, live-in partners tend to be of a similar age as the person with dementia and may have challenges of their own.

Interestingly, high neighborhood social deprivation was associated with lower odds of falling (OR, 0.55 for the highest deprivation scores; 95% CI, 0.31-0.98), a finding Dr. Okoye said was “counterintuitive.”

This result could be related to the social environment, she noted. “Maybe there are more people around in the house, more people with eyes on the person, or more people in the community who know the person. Despite the low economic resources, there could be social resources there,” she said.

The new findings underscore the idea that falling is a multidimensional phenomenon among older adults with dementia as well as those without dementia, Dr. Okoye noted.

Doctors can play a role in reducing falls among patients with dementia by asking about falls, possibly eliminating medications that are associated with risk of falling, and screening for and correcting vision and hearing impairments, she suggested.

They may also help determine household hazards for a patient, such as clutter and poor lighting, and ensure that these are addressed, Dr. Okoye added.
 

No surprise

Commenting on the study, David S. Knopman, MD, a clinical neurologist at Mayo Clinic, Rochester, Minn., said the finding that visual impairment and a prior history of falling are predictive of subsequent falls “comes as no surprise.”

Dr. Knopman, whose research focuses on late-life cognitive disorders, was not involved with the current study.

Risk reduction is “of course” a key management goal, he said. “Vigilance and optimizing the patient’s living space to reduce fall risks are the major strategies,” he added.

Dr. Knopman reiterated that falls among those with dementia are associated with higher mortality and often lead to loss of the capacity to live outside of an institution.

The study was supported by the National Institute on Aging. The investigators and Dr. Knopman report no relevant financial relationships.

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

Nearly half of older adults with dementia experience falls, suggests new research that also identifies multiple risk factors for these falls.

In a study of more than 5,500 participants, 45.5% of those with dementia experienced one or more falls, compared with 30.9% of their peers without dementia.

Vision impairment and living with a spouse were among the strongest predictors of future fall risk among participants living with dementia. Interestingly, high neighborhood social deprivation, which is reflected by such things as income and education, was associated with lower odds of falling.

Overall, the results highlight the need for a multidisciplinary approach to preventing falls among elderly individuals with dementia, said lead author Safiyyah M. Okoye, PhD, assistant professor, College of Nursing and Health Professions, Drexel University, Philadelphia.

“We need to consider different dimensions and figure out how we can try to go beyond the clinic in our interactions,” she said.

Dr. Okoye noted that in addition to reviewing medications that may contribute to falls and screening for vision problems, clinicians might also consider resources to improve the home environment and ensure that families have appropriate caregiving.

The findings were published online  in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association.
 

No ‘silver bullet’

Every year, falls cause millions of injuries in older adults, and those with dementia are especially vulnerable. This population has twice the risk of falling and up to three times the risk of incurring serious fall-related injuries, such as fractures, the researchers noted.

Falls are a leading cause of hospitalization among those with dementia. Previous evidence has shown that persons with dementia are more likely to experience negative health consequences, such as delirium, while in hospital, compared with those without dementia. Even minor fall-related injuries are associated with the patient’s being discharged to a nursing home rather than returning home.

Dr. Okoye stressed that many factors contribute to falls, including health status; function, such as the ability to walk and balance; medications; home environment; and activity level.

“There are multidimensional aspects, and we can’t just find one silver bullet to address falls. It should be addressed comprehensively,” she said.

Existing studies “overwhelmingly” focus on factors related to health and function that could be addressed in the doctor’s office or with a referral, rather than on environmental and social factors, Dr. Okoye noted.

And even though the risk of falling is high among community-dwelling seniors with dementia, very few studies have addressed the risk of falls among these adults, she added.

The new analysis included a nationally representative sample of 5,581 community-dwelling adults who participated in both the 2015 and 2016 National Health and Aging Trends Study (NHATS). The NHATS is a population-based survey of health and disability trends and trajectories among Americans aged 65 years and older.

During interviews, participants were asked, personally or by proxy, about falls during the previous 12 months. Having fallen at baseline was evaluated as a possible predictor of falls in the subsequent 12 months.

To determine probable dementia, researchers asked whether a doctor had ever told the participants that they had dementia or Alzheimer’s disease. They also used a dementia screening questionnaire and neuropsychological tests of memory, orientation, and executive function.

Of the total sample, most (n = 5,093) did not have dementia.

Physical environmental factors that were assessed included conditions at home, such as clutter, tripping hazards, and structural issues, as well as neighborhood social and economic deprivation – such as income, education levels, and employment status.
 

 

 

Fall rates and counterintuitive findings

Results showed that significantly more of those with dementia than without experienced one or more falls (45.5% vs. 30.9%; P < .001).

In addition, a history of falling was significantly associated with subsequent falls among those with dementia (odds ratio, 6.20; 95% confidence interval, 3.81-10.09), as was vision impairment (OR, 2.22; 95% CI, 1.12-4.40) and living with a spouse versus alone (OR, 2.43; 95% CI, 1.09-5.43).

A possible explanation for higher fall risk among those living with a partner is that those living alone usually have better functioning, the investigators noted. Also, live-in partners tend to be of a similar age as the person with dementia and may have challenges of their own.

Interestingly, high neighborhood social deprivation was associated with lower odds of falling (OR, 0.55 for the highest deprivation scores; 95% CI, 0.31-0.98), a finding Dr. Okoye said was “counterintuitive.”

This result could be related to the social environment, she noted. “Maybe there are more people around in the house, more people with eyes on the person, or more people in the community who know the person. Despite the low economic resources, there could be social resources there,” she said.

The new findings underscore the idea that falling is a multidimensional phenomenon among older adults with dementia as well as those without dementia, Dr. Okoye noted.

Doctors can play a role in reducing falls among patients with dementia by asking about falls, possibly eliminating medications that are associated with risk of falling, and screening for and correcting vision and hearing impairments, she suggested.

They may also help determine household hazards for a patient, such as clutter and poor lighting, and ensure that these are addressed, Dr. Okoye added.
 

No surprise

Commenting on the study, David S. Knopman, MD, a clinical neurologist at Mayo Clinic, Rochester, Minn., said the finding that visual impairment and a prior history of falling are predictive of subsequent falls “comes as no surprise.”

Dr. Knopman, whose research focuses on late-life cognitive disorders, was not involved with the current study.

Risk reduction is “of course” a key management goal, he said. “Vigilance and optimizing the patient’s living space to reduce fall risks are the major strategies,” he added.

Dr. Knopman reiterated that falls among those with dementia are associated with higher mortality and often lead to loss of the capacity to live outside of an institution.

The study was supported by the National Institute on Aging. The investigators and Dr. Knopman report no relevant financial relationships.

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

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Ecopipam reduces Tourette’s tics without common side effects in phase 2 trial

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Ecopipam, in development for Tourette syndrome in children and adolescents, has shown in a randomized, controlled trial that, compared with placebo, it reduced tics and reduced the risk for some of the common side effects of other treatments, including weight gain.

Findings of the multicenter, double-blind, trial funded by the drug maker, Emalex Biosciences, were published online in Pediatrics. The trial was conducted at 68 sites in the United States, Canada, Germany, France, and Poland between May 2019 and September 2021.

Donald L. Gilbert, MD, MS, with the division of neurology at Cincinnati Children’s Hospital, and colleagues noted that all Food and Drug Administration–approved medications for Tourette syndrome are antipsychotics. The medications carry a risk of weight gain, electrocardiogram abnormalities, metabolic changes, and drug-induced movement disorders.

First-in-class medication ecopipam, targets the D1 dopamine receptor, while currently approved medications block the D2 receptor. It “may be a safe and effective treatment of Tourette syndrome with advantages over other currently approved therapeutic agents,” the authors wrote.

The study included 153 individuals at least 6 years old up to age 18 with a baseline Yale Global Tic Severity Score Total Tic Score of at least 20.

They were randomly assigned 1:1 to ecopipam or placebo.
 

Significant reduction in tic severity

Researchers saw a 30% reduction in the tic severity score from baseline to week 12 for the ecopipam group compared with the placebo group.

The data showed a least-squares mean difference of 3.44 (95% confidence interval [CI], 6.09-0.79, P = .01). Researchers also saw improvement in Clinical Global Impression of Tourette Syndrome Severity in the ecopipam group (P = .03).

Sara Pawlowski, MD, division chief for primary care mental health integration at University of Vermont Health Network and assistant professor of psychiatry, University of Vermont, Burlington, said in an interview that several things should be considered with this research.

One is that, though the results show a reduction in tics, the study lasted only 12 weeks and “tics can last a lifetime,” she noted.

“They also can ebb and flow with major life events, stressors, and various other variables. So, I wonder how the effects of improvement can be teased out from the natural ebb and flow of the condition in a 3-month window, which is a snapshot into the course of a known relapsing, remitting, lifetime, and chronically variable condition,” she said.
 

Headaches, insomnia among side effects

Weight gain was larger in the placebo group than in the ecopipam group: 17.1% in the ecopipam group and 20.3% of those who got a placebo had a weight gain of more than 7% over the study period.

The most common side effects of the study drug were headache (15.8%), insomnia (14.5%), fatigue (7.9%), and somnolence (7.9%).

A limitation of the study was lack of racial and ethnic diversity, as 93.5% of those in the placebo group and 86.8% in the ecopipam group were White.

Guidelines in North America and Europe agree that behavioral treatments should be the first-line therapy.

Dr. Pawlowski said that although effective medications are needed, she urges focusing on better access to nonmedication treatments “that work for children and adolescents” as children who start taking the medications early may take them for the rest of their lives.

Also, while the research didn’t find weight gain in the ecopipam group, the side effects they did find in the group, including headache and insomnia, “do impact a child’s life,” she noted.

“We also can’t be reassured that over the course of chronic treatment there wouldn’t be movement disorders or metabolic disorders that emerge. Those are side effects or disorders that can emerge surreptitiously over time, and more time than 12 weeks,” she said.

The study was funded by Emalex Biosciences. Dr. Gilbert has received consulting fees from Biogen and PTC therapeutics. Study coauthors disclosed ties with Emalex, Alkermes, and Paragon Biosciences. Dr. Pawlowski reports no relevant financial relationships.

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Ecopipam, in development for Tourette syndrome in children and adolescents, has shown in a randomized, controlled trial that, compared with placebo, it reduced tics and reduced the risk for some of the common side effects of other treatments, including weight gain.

Findings of the multicenter, double-blind, trial funded by the drug maker, Emalex Biosciences, were published online in Pediatrics. The trial was conducted at 68 sites in the United States, Canada, Germany, France, and Poland between May 2019 and September 2021.

Donald L. Gilbert, MD, MS, with the division of neurology at Cincinnati Children’s Hospital, and colleagues noted that all Food and Drug Administration–approved medications for Tourette syndrome are antipsychotics. The medications carry a risk of weight gain, electrocardiogram abnormalities, metabolic changes, and drug-induced movement disorders.

First-in-class medication ecopipam, targets the D1 dopamine receptor, while currently approved medications block the D2 receptor. It “may be a safe and effective treatment of Tourette syndrome with advantages over other currently approved therapeutic agents,” the authors wrote.

The study included 153 individuals at least 6 years old up to age 18 with a baseline Yale Global Tic Severity Score Total Tic Score of at least 20.

They were randomly assigned 1:1 to ecopipam or placebo.
 

Significant reduction in tic severity

Researchers saw a 30% reduction in the tic severity score from baseline to week 12 for the ecopipam group compared with the placebo group.

The data showed a least-squares mean difference of 3.44 (95% confidence interval [CI], 6.09-0.79, P = .01). Researchers also saw improvement in Clinical Global Impression of Tourette Syndrome Severity in the ecopipam group (P = .03).

Sara Pawlowski, MD, division chief for primary care mental health integration at University of Vermont Health Network and assistant professor of psychiatry, University of Vermont, Burlington, said in an interview that several things should be considered with this research.

One is that, though the results show a reduction in tics, the study lasted only 12 weeks and “tics can last a lifetime,” she noted.

“They also can ebb and flow with major life events, stressors, and various other variables. So, I wonder how the effects of improvement can be teased out from the natural ebb and flow of the condition in a 3-month window, which is a snapshot into the course of a known relapsing, remitting, lifetime, and chronically variable condition,” she said.
 

Headaches, insomnia among side effects

Weight gain was larger in the placebo group than in the ecopipam group: 17.1% in the ecopipam group and 20.3% of those who got a placebo had a weight gain of more than 7% over the study period.

The most common side effects of the study drug were headache (15.8%), insomnia (14.5%), fatigue (7.9%), and somnolence (7.9%).

A limitation of the study was lack of racial and ethnic diversity, as 93.5% of those in the placebo group and 86.8% in the ecopipam group were White.

Guidelines in North America and Europe agree that behavioral treatments should be the first-line therapy.

Dr. Pawlowski said that although effective medications are needed, she urges focusing on better access to nonmedication treatments “that work for children and adolescents” as children who start taking the medications early may take them for the rest of their lives.

Also, while the research didn’t find weight gain in the ecopipam group, the side effects they did find in the group, including headache and insomnia, “do impact a child’s life,” she noted.

“We also can’t be reassured that over the course of chronic treatment there wouldn’t be movement disorders or metabolic disorders that emerge. Those are side effects or disorders that can emerge surreptitiously over time, and more time than 12 weeks,” she said.

The study was funded by Emalex Biosciences. Dr. Gilbert has received consulting fees from Biogen and PTC therapeutics. Study coauthors disclosed ties with Emalex, Alkermes, and Paragon Biosciences. Dr. Pawlowski reports no relevant financial relationships.

Ecopipam, in development for Tourette syndrome in children and adolescents, has shown in a randomized, controlled trial that, compared with placebo, it reduced tics and reduced the risk for some of the common side effects of other treatments, including weight gain.

Findings of the multicenter, double-blind, trial funded by the drug maker, Emalex Biosciences, were published online in Pediatrics. The trial was conducted at 68 sites in the United States, Canada, Germany, France, and Poland between May 2019 and September 2021.

Donald L. Gilbert, MD, MS, with the division of neurology at Cincinnati Children’s Hospital, and colleagues noted that all Food and Drug Administration–approved medications for Tourette syndrome are antipsychotics. The medications carry a risk of weight gain, electrocardiogram abnormalities, metabolic changes, and drug-induced movement disorders.

First-in-class medication ecopipam, targets the D1 dopamine receptor, while currently approved medications block the D2 receptor. It “may be a safe and effective treatment of Tourette syndrome with advantages over other currently approved therapeutic agents,” the authors wrote.

The study included 153 individuals at least 6 years old up to age 18 with a baseline Yale Global Tic Severity Score Total Tic Score of at least 20.

They were randomly assigned 1:1 to ecopipam or placebo.
 

Significant reduction in tic severity

Researchers saw a 30% reduction in the tic severity score from baseline to week 12 for the ecopipam group compared with the placebo group.

The data showed a least-squares mean difference of 3.44 (95% confidence interval [CI], 6.09-0.79, P = .01). Researchers also saw improvement in Clinical Global Impression of Tourette Syndrome Severity in the ecopipam group (P = .03).

Sara Pawlowski, MD, division chief for primary care mental health integration at University of Vermont Health Network and assistant professor of psychiatry, University of Vermont, Burlington, said in an interview that several things should be considered with this research.

One is that, though the results show a reduction in tics, the study lasted only 12 weeks and “tics can last a lifetime,” she noted.

“They also can ebb and flow with major life events, stressors, and various other variables. So, I wonder how the effects of improvement can be teased out from the natural ebb and flow of the condition in a 3-month window, which is a snapshot into the course of a known relapsing, remitting, lifetime, and chronically variable condition,” she said.
 

Headaches, insomnia among side effects

Weight gain was larger in the placebo group than in the ecopipam group: 17.1% in the ecopipam group and 20.3% of those who got a placebo had a weight gain of more than 7% over the study period.

The most common side effects of the study drug were headache (15.8%), insomnia (14.5%), fatigue (7.9%), and somnolence (7.9%).

A limitation of the study was lack of racial and ethnic diversity, as 93.5% of those in the placebo group and 86.8% in the ecopipam group were White.

Guidelines in North America and Europe agree that behavioral treatments should be the first-line therapy.

Dr. Pawlowski said that although effective medications are needed, she urges focusing on better access to nonmedication treatments “that work for children and adolescents” as children who start taking the medications early may take them for the rest of their lives.

Also, while the research didn’t find weight gain in the ecopipam group, the side effects they did find in the group, including headache and insomnia, “do impact a child’s life,” she noted.

“We also can’t be reassured that over the course of chronic treatment there wouldn’t be movement disorders or metabolic disorders that emerge. Those are side effects or disorders that can emerge surreptitiously over time, and more time than 12 weeks,” she said.

The study was funded by Emalex Biosciences. Dr. Gilbert has received consulting fees from Biogen and PTC therapeutics. Study coauthors disclosed ties with Emalex, Alkermes, and Paragon Biosciences. Dr. Pawlowski reports no relevant financial relationships.

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Hearing loss strongly tied to increased dementia risk

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Dementia prevalence is 61% higher among older people with moderate to severe hearing loss compared with those with normal hearing, new national data show. Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.

“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” said lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore.

The findings were published online in JAMA.
 

Dose dependent effect

For their study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.

Data from the study was collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.

“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.

Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.

Those with moderate to severe hearing loss were 61% more likely to have dementia than were those with normal hearing (prevalence ratio, 1.61; 95% confidence interval [CI], 1.09-2.38).

Dementia prevalence increased with increasing severity of hearing loss: Normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate to severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).

Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).

Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assisted devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). Similar data were published in JAMA Neurology, suggesting that hearing aids reduce dementia risk.

“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
 

Robust association

Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.

“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”

Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.

“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.

“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.

The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships. Full disclosures for study authors are included in the original article.

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

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Dementia prevalence is 61% higher among older people with moderate to severe hearing loss compared with those with normal hearing, new national data show. Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.

“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” said lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore.

The findings were published online in JAMA.
 

Dose dependent effect

For their study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.

Data from the study was collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.

“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.

Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.

Those with moderate to severe hearing loss were 61% more likely to have dementia than were those with normal hearing (prevalence ratio, 1.61; 95% confidence interval [CI], 1.09-2.38).

Dementia prevalence increased with increasing severity of hearing loss: Normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate to severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).

Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).

Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assisted devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). Similar data were published in JAMA Neurology, suggesting that hearing aids reduce dementia risk.

“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
 

Robust association

Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.

“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”

Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.

“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.

“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.

The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships. Full disclosures for study authors are included in the original article.

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

Dementia prevalence is 61% higher among older people with moderate to severe hearing loss compared with those with normal hearing, new national data show. Investigators also found that even mild hearing loss was associated with increased dementia risk, although it was not statistically significant, and that hearing aid use was tied to a 32% decrease in dementia prevalence.

“Every 10-decibel increase in hearing loss was associated with 16% greater prevalence of dementia, such that prevalence of dementia in older adults with moderate or greater hearing loss was 61% higher than prevalence in those with normal hearing,” said lead investigator Alison Huang, PhD, senior research associate in epidemiology at Johns Hopkins Bloomberg School of Public Health and core faculty in the Cochlear Center for Hearing and Public Health, Baltimore.

The findings were published online in JAMA.
 

Dose dependent effect

For their study, researchers analyzed data on 2,413 community-dwelling participants in the National Health and Aging Trends Study, a nationally representative, continuous panel study of U.S. Medicare beneficiaries aged 65 and older.

Data from the study was collected during in-home interviews, setting it apart from previous work that relied on data collected in a clinical setting, Dr. Huang said.

“This study was able to capture more vulnerable populations, such as the oldest old and older adults with disabilities, typically excluded from prior epidemiologic studies of the hearing loss–dementia association that use clinic-based data collection, which only captures people who have the ability and means to get to clinics,” Dr. Huang said.

Weighted hearing loss prevalence was 36.7% for mild and 29.8% for moderate to severe hearing loss, and weighted prevalence of dementia was 10.3%.

Those with moderate to severe hearing loss were 61% more likely to have dementia than were those with normal hearing (prevalence ratio, 1.61; 95% confidence interval [CI], 1.09-2.38).

Dementia prevalence increased with increasing severity of hearing loss: Normal hearing: 6.19% (95% CI, 4.31-8.80); mild hearing loss: 8.93% (95% CI, 6.99-11.34); moderate to severe hearing loss: 16.52% (95% CI, 13.81-19.64). But only moderate to severe hearing loss showed a statistically significant association with dementia (P = .02).

Dementia prevalence increased 16% per 10-decibel increase in hearing loss (prevalence ratio 1.16; P < .001).

Among the 853 individuals in the study with moderate to severe hearing loss, those who used hearing aids (n = 414) had a 32% lower risk of dementia compared with those who didn’t use assisted devices (prevalence ratio, 0.68; 95% CI, 0.47-1.00). Similar data were published in JAMA Neurology, suggesting that hearing aids reduce dementia risk.

“With this study, we were able to refine our understanding of the strength of the hearing loss–dementia association in a study more representative of older adults in the United States,” said Dr. Huang.
 

Robust association

Commenting on the findings, Justin S. Golub, MD, associate professor in the department of otolaryngology–head and neck surgery at Columbia University, New York, said the study supports earlier research and suggests a “robust” association between hearing loss and dementia.

“The particular advantage of this study was that it was high quality and nationally representative,” Dr. Golub said. “It is also among a smaller set of studies that have shown hearing aid use to be associated with lower risk of dementia.”

Although not statistically significant, researchers did find increasing prevalence of dementia among people with only mild hearing loss, and clinicians should take note, said Dr. Golub, who was not involved with this study.

“We would expect the relationship between mild hearing loss and dementia to be weaker than severe hearing loss and dementia and, as a result, it might take more participants to show an association among the mild group,” Dr. Golub said.

“Even though this particular study did not specifically find a relationship between mild hearing loss and dementia, I would still recommend people to start treating their hearing loss when it is early,” Dr. Golub added.

The study was funded by the National Institute on Aging. Dr. Golub reports no relevant financial relationships. Full disclosures for study authors are included in the original article.

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

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