MDedge Neurology

Two biomarkers present in blood measured on the day of traumatic brain injury (TBI) can accurately predict a patient’s risk for death or severe disability 6 months later, new research suggests.

In new data from the TRACK-TBI study group, high levels of glial fibrillary acidic protein (GFAP) and ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) proteins found in glial cells and neurons, respectively, correlated with death and severe injury. Investigators note that measuring these biomarkers may give a more accurate assessment of a patient’s prognosis following TBI.

This study is the “first report of the accuracy of a blood test that can be obtained rapidly on the day of injury to predict neurological recovery at 6 months after injury,” lead author Frederick Korley, MD, PhD, associate professor of emergency medicine at the University of Michigan, Ann Arbor, said in a news release.

The findings were published online in the Lancet Neurology.
 

Added value

The researchers measured GFAP and UCH-L1 in blood samples taken from 1,696 patients with TBI on the day of their injury, and they assessed patient recovery 6 months later.

The markers were measured using the i-STAT TBI Plasma test (Abbott Labs). The test was approved in 2021 by the U.S. Food and Drug Administration to determine which patients with mild TBI should undergo computed tomography scans.

About two-thirds of the study population were men, and the average age was 39 years. All patients were evaluated at Level I trauma centers for injuries caused primarily by traffic accidents or falls.

Six months following injury, 7% of the patients had died and 14% had an unfavorable outcome, ranging from vegetative state to severe disability requiring daily support. In addition, 67% had incomplete recovery, ranging from moderate disabilities requiring assistance outside of the home to minor disabling neurological or psychological deficits.

Day-of-injury GFAP and UCH-L1 levels had a high probability of predicting death (87% for GFAP and 89% for UCH-L1) and severe disability (86% for both GFAP and UCH-L1) at 6 months, the investigators reported.

The biomarkers were less accurate in predicting incomplete recovery (62% for GFAP and 61% for UCH-L1).

The researchers also assessed the added value of combining the blood biomarkers to current TBI prognostic models that take into account variables such as age, motor score, pupil reactivity, and CT characteristics.

In patients with a Glasgow Coma Scale (GCS) score of 3-12, adding GFAP and UCH-L1 alone or combined to each of the three International Mission for Prognosis and Analysis of Clinical Trials in TBI (IMPACT) models significantly increased their accuracy for predicting death (range, 90%-94%) and unfavorable outcome (range, 83%-89%).

In patients with milder TBI (GCS score, 13-15), adding GFAP and UCH-L1 to the UPFRONT prognostic model modestly increased accuracy for predicting incomplete recovery (69%).
 

‘Important’ findings

Commenting on the study, Cyrus A. Raji, MD, PhD, assistant professor of radiology and neurology, Washington University, St. Louis, said this “critical” study shows that these biomarkers can “predict key outcomes,” including mortality and severe disability. “Thus, in conjunction with clinical evaluations and related data such as neuroimaging, these tests may warrant translation to broader clinical practice, particularly in acute settings,” said Dr. Raji, who was not involved in the research.

Also weighing in, Heidi Fusco, MD, assistant director of the traumatic brain injury program at NYU Langone Rusk Rehabilitation, said the findings are “important.”

“Prognosis after brain injury often is based on the initial presentation, ongoing clinical exams, and neuroimaging; and the addition of biomarkers would contribute to creating a more objective prognostic model,” Dr. Fusco said.

She noted “it’s unclear” whether clinical hospital laboratories would be able to accommodate this type of laboratory drawing.

“It is imperative that clinicians still use the patient history [and] clinical and radiological exam when making clinical decisions for a patient and not just lab values. It would be best to incorporate the GFAP and UCH-L1 into a preexisting prognostic model,” Dr. Fusco said.

The study was funded by the U.S. National Institutes of Health, the National Institute of Neurologic Disorders and Stroke, the U.S. Department of Defense, One Mind, and U.S. Army Medical Research and Development Command. Dr. Korley reported having previously consulted for Abbott Laboratories and has received research funding from Abbott Laboratories, which makes the assays used in the study. Dr. Raji is a consultant for Brainreader ApS and Neurevolution. Dr. Fusco has reported no relevant financial relationships.

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

Two biomarkers present in blood measured on the day of traumatic brain injury (TBI) can accurately predict a patient’s risk for death or severe disability 6 months later, new research suggests.

In new data from the TRACK-TBI study group, high levels of glial fibrillary acidic protein (GFAP) and ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) proteins found in glial cells and neurons, respectively, correlated with death and severe injury. Investigators note that measuring these biomarkers may give a more accurate assessment of a patient’s prognosis following TBI.

This study is the “first report of the accuracy of a blood test that can be obtained rapidly on the day of injury to predict neurological recovery at 6 months after injury,” lead author Frederick Korley, MD, PhD, associate professor of emergency medicine at the University of Michigan, Ann Arbor, said in a news release.

The findings were published online in the Lancet Neurology.
 

Added value

The researchers measured GFAP and UCH-L1 in blood samples taken from 1,696 patients with TBI on the day of their injury, and they assessed patient recovery 6 months later.

The markers were measured using the i-STAT TBI Plasma test (Abbott Labs). The test was approved in 2021 by the U.S. Food and Drug Administration to determine which patients with mild TBI should undergo computed tomography scans.

About two-thirds of the study population were men, and the average age was 39 years. All patients were evaluated at Level I trauma centers for injuries caused primarily by traffic accidents or falls.

Six months following injury, 7% of the patients had died and 14% had an unfavorable outcome, ranging from vegetative state to severe disability requiring daily support. In addition, 67% had incomplete recovery, ranging from moderate disabilities requiring assistance outside of the home to minor disabling neurological or psychological deficits.

Day-of-injury GFAP and UCH-L1 levels had a high probability of predicting death (87% for GFAP and 89% for UCH-L1) and severe disability (86% for both GFAP and UCH-L1) at 6 months, the investigators reported.

The biomarkers were less accurate in predicting incomplete recovery (62% for GFAP and 61% for UCH-L1).

The researchers also assessed the added value of combining the blood biomarkers to current TBI prognostic models that take into account variables such as age, motor score, pupil reactivity, and CT characteristics.

In patients with a Glasgow Coma Scale (GCS) score of 3-12, adding GFAP and UCH-L1 alone or combined to each of the three International Mission for Prognosis and Analysis of Clinical Trials in TBI (IMPACT) models significantly increased their accuracy for predicting death (range, 90%-94%) and unfavorable outcome (range, 83%-89%).

In patients with milder TBI (GCS score, 13-15), adding GFAP and UCH-L1 to the UPFRONT prognostic model modestly increased accuracy for predicting incomplete recovery (69%).
 

‘Important’ findings

Commenting on the study, Cyrus A. Raji, MD, PhD, assistant professor of radiology and neurology, Washington University, St. Louis, said this “critical” study shows that these biomarkers can “predict key outcomes,” including mortality and severe disability. “Thus, in conjunction with clinical evaluations and related data such as neuroimaging, these tests may warrant translation to broader clinical practice, particularly in acute settings,” said Dr. Raji, who was not involved in the research.

Also weighing in, Heidi Fusco, MD, assistant director of the traumatic brain injury program at NYU Langone Rusk Rehabilitation, said the findings are “important.”

“Prognosis after brain injury often is based on the initial presentation, ongoing clinical exams, and neuroimaging; and the addition of biomarkers would contribute to creating a more objective prognostic model,” Dr. Fusco said.

She noted “it’s unclear” whether clinical hospital laboratories would be able to accommodate this type of laboratory drawing.

“It is imperative that clinicians still use the patient history [and] clinical and radiological exam when making clinical decisions for a patient and not just lab values. It would be best to incorporate the GFAP and UCH-L1 into a preexisting prognostic model,” Dr. Fusco said.

The study was funded by the U.S. National Institutes of Health, the National Institute of Neurologic Disorders and Stroke, the U.S. Department of Defense, One Mind, and U.S. Army Medical Research and Development Command. Dr. Korley reported having previously consulted for Abbott Laboratories and has received research funding from Abbott Laboratories, which makes the assays used in the study. Dr. Raji is a consultant for Brainreader ApS and Neurevolution. Dr. Fusco has reported no relevant financial relationships.

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

Two biomarkers present in blood measured on the day of traumatic brain injury (TBI) can accurately predict a patient’s risk for death or severe disability 6 months later, new research suggests.

In new data from the TRACK-TBI study group, high levels of glial fibrillary acidic protein (GFAP) and ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) proteins found in glial cells and neurons, respectively, correlated with death and severe injury. Investigators note that measuring these biomarkers may give a more accurate assessment of a patient’s prognosis following TBI.

This study is the “first report of the accuracy of a blood test that can be obtained rapidly on the day of injury to predict neurological recovery at 6 months after injury,” lead author Frederick Korley, MD, PhD, associate professor of emergency medicine at the University of Michigan, Ann Arbor, said in a news release.

The findings were published online in the Lancet Neurology.
 

Added value

The researchers measured GFAP and UCH-L1 in blood samples taken from 1,696 patients with TBI on the day of their injury, and they assessed patient recovery 6 months later.

The markers were measured using the i-STAT TBI Plasma test (Abbott Labs). The test was approved in 2021 by the U.S. Food and Drug Administration to determine which patients with mild TBI should undergo computed tomography scans.

About two-thirds of the study population were men, and the average age was 39 years. All patients were evaluated at Level I trauma centers for injuries caused primarily by traffic accidents or falls.

Six months following injury, 7% of the patients had died and 14% had an unfavorable outcome, ranging from vegetative state to severe disability requiring daily support. In addition, 67% had incomplete recovery, ranging from moderate disabilities requiring assistance outside of the home to minor disabling neurological or psychological deficits.

Day-of-injury GFAP and UCH-L1 levels had a high probability of predicting death (87% for GFAP and 89% for UCH-L1) and severe disability (86% for both GFAP and UCH-L1) at 6 months, the investigators reported.

The biomarkers were less accurate in predicting incomplete recovery (62% for GFAP and 61% for UCH-L1).

The researchers also assessed the added value of combining the blood biomarkers to current TBI prognostic models that take into account variables such as age, motor score, pupil reactivity, and CT characteristics.

In patients with a Glasgow Coma Scale (GCS) score of 3-12, adding GFAP and UCH-L1 alone or combined to each of the three International Mission for Prognosis and Analysis of Clinical Trials in TBI (IMPACT) models significantly increased their accuracy for predicting death (range, 90%-94%) and unfavorable outcome (range, 83%-89%).

In patients with milder TBI (GCS score, 13-15), adding GFAP and UCH-L1 to the UPFRONT prognostic model modestly increased accuracy for predicting incomplete recovery (69%).
 

‘Important’ findings

Commenting on the study, Cyrus A. Raji, MD, PhD, assistant professor of radiology and neurology, Washington University, St. Louis, said this “critical” study shows that these biomarkers can “predict key outcomes,” including mortality and severe disability. “Thus, in conjunction with clinical evaluations and related data such as neuroimaging, these tests may warrant translation to broader clinical practice, particularly in acute settings,” said Dr. Raji, who was not involved in the research.

Also weighing in, Heidi Fusco, MD, assistant director of the traumatic brain injury program at NYU Langone Rusk Rehabilitation, said the findings are “important.”

“Prognosis after brain injury often is based on the initial presentation, ongoing clinical exams, and neuroimaging; and the addition of biomarkers would contribute to creating a more objective prognostic model,” Dr. Fusco said.

She noted “it’s unclear” whether clinical hospital laboratories would be able to accommodate this type of laboratory drawing.

“It is imperative that clinicians still use the patient history [and] clinical and radiological exam when making clinical decisions for a patient and not just lab values. It would be best to incorporate the GFAP and UCH-L1 into a preexisting prognostic model,” Dr. Fusco said.

The study was funded by the U.S. National Institutes of Health, the National Institute of Neurologic Disorders and Stroke, the U.S. Department of Defense, One Mind, and U.S. Army Medical Research and Development Command. Dr. Korley reported having previously consulted for Abbott Laboratories and has received research funding from Abbott Laboratories, which makes the assays used in the study. Dr. Raji is a consultant for Brainreader ApS and Neurevolution. Dr. Fusco has reported no relevant financial relationships.

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

A cell phone app that combines white noise, active game-based therapy, and counseling could help “rewire” the brain to provide relief from tinnitus symptoms, new research suggests. In a randomized controlled trial, results at 12 weeks showed patients with tinnitus reported clinically meaningful reductions in ratings of annoyance, inability to ignore, unpleasantness, and loudness after using a digital polytherapeutic app prototype that focuses on relief, relaxation, and attention-focused retraining. In addition, their improvements were significantly greater than for the control group, which received a common white noise app.

Researchers called the results “promising” for a condition that has no cure and few successful treatments. “What this therapy does is essentially rewire the brain in a way that de-emphasizes the sound of the tinnitus to a background noise that has no meaning or relevance to the listener,” lead author Grant Searchfield, PhD, associate professor of audiology at the University of Auckland, New Zealand, said in a press release.

The findings were published online in Frontiers in Neurology.
 

Worldwide problem

A recent study showed more than 740 million adults worldwide (nearly 15% of the population) have experienced at least one symptom of tinnitus – and about 120 million are severely affected. Tinnitus is the perception of a ringing, buzzing, whistling, or hissing noise in one or both ears when no external source of the sound is present. Often caused by damage to the auditory system, tinnitus can also be a symptom of a wide range of medical conditions and has been identified as a side effect of COVID-19 vaccination. In its most severe form, which is associated with hearing loss, tinnitus can also affect a patient’s mental, emotional, and social health.

For the current study, participants with tinnitus were randomly assigned to a popular app that uses white noise (control group, n = 30) or to the UpSilent app (n = 31). The UpSilent group received a smartphone app, Bluetooth bone conduction headphones, a Bluetooth neck pillow speaker for sleep, and written counseling materials. Participants in the control group received a widely available app called “White Noise” and in-ear wired headphones.
 

‘Quicker and more effective’

Both groups reported reductions in ratings of annoyance, inability to ignore, unpleasantness, and loudness at 12 weeks. But significantly more of the UpSilent group reported clinically meaningful improvement compared with the control group (65% vs. 43%, respectively; P = .049).

“Earlier trials have found white noise, goal-based counseling, goal-oriented games, and other technology-based therapies are effective for some people some of the time,” Dr. Searchfield said. “This is quicker and more effective, taking 12 weeks rather than 12 months for more individuals to gain some control,” he added.

The investigators noted that the study was not designed to determine which of the app’s functions of passive listening, active listening, or counseling contributed to symptom improvement.

The next step will be to refine the prototype and proceed to larger local and international trials with a view toward approval by the U.S. Food and Drug Administration, they reported.

The researchers hope the app will be clinically available in about 6 months.

The study was funded by Return on Science, Auckland UniServices. Dr. Searchfield is a founder and scientific officer for TrueSilence, a spinout company of the University of Auckland, and has a financial interest in TrueSilence. His coauthor has reported no relevant financial relationships.

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

A cell phone app that combines white noise, active game-based therapy, and counseling could help “rewire” the brain to provide relief from tinnitus symptoms, new research suggests. In a randomized controlled trial, results at 12 weeks showed patients with tinnitus reported clinically meaningful reductions in ratings of annoyance, inability to ignore, unpleasantness, and loudness after using a digital polytherapeutic app prototype that focuses on relief, relaxation, and attention-focused retraining. In addition, their improvements were significantly greater than for the control group, which received a common white noise app.

Researchers called the results “promising” for a condition that has no cure and few successful treatments. “What this therapy does is essentially rewire the brain in a way that de-emphasizes the sound of the tinnitus to a background noise that has no meaning or relevance to the listener,” lead author Grant Searchfield, PhD, associate professor of audiology at the University of Auckland, New Zealand, said in a press release.

The findings were published online in Frontiers in Neurology.
 

Worldwide problem

A recent study showed more than 740 million adults worldwide (nearly 15% of the population) have experienced at least one symptom of tinnitus – and about 120 million are severely affected. Tinnitus is the perception of a ringing, buzzing, whistling, or hissing noise in one or both ears when no external source of the sound is present. Often caused by damage to the auditory system, tinnitus can also be a symptom of a wide range of medical conditions and has been identified as a side effect of COVID-19 vaccination. In its most severe form, which is associated with hearing loss, tinnitus can also affect a patient’s mental, emotional, and social health.

For the current study, participants with tinnitus were randomly assigned to a popular app that uses white noise (control group, n = 30) or to the UpSilent app (n = 31). The UpSilent group received a smartphone app, Bluetooth bone conduction headphones, a Bluetooth neck pillow speaker for sleep, and written counseling materials. Participants in the control group received a widely available app called “White Noise” and in-ear wired headphones.
 

‘Quicker and more effective’

Both groups reported reductions in ratings of annoyance, inability to ignore, unpleasantness, and loudness at 12 weeks. But significantly more of the UpSilent group reported clinically meaningful improvement compared with the control group (65% vs. 43%, respectively; P = .049).

“Earlier trials have found white noise, goal-based counseling, goal-oriented games, and other technology-based therapies are effective for some people some of the time,” Dr. Searchfield said. “This is quicker and more effective, taking 12 weeks rather than 12 months for more individuals to gain some control,” he added.

The investigators noted that the study was not designed to determine which of the app’s functions of passive listening, active listening, or counseling contributed to symptom improvement.

The next step will be to refine the prototype and proceed to larger local and international trials with a view toward approval by the U.S. Food and Drug Administration, they reported.

The researchers hope the app will be clinically available in about 6 months.

The study was funded by Return on Science, Auckland UniServices. Dr. Searchfield is a founder and scientific officer for TrueSilence, a spinout company of the University of Auckland, and has a financial interest in TrueSilence. His coauthor has reported no relevant financial relationships.

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

A cell phone app that combines white noise, active game-based therapy, and counseling could help “rewire” the brain to provide relief from tinnitus symptoms, new research suggests. In a randomized controlled trial, results at 12 weeks showed patients with tinnitus reported clinically meaningful reductions in ratings of annoyance, inability to ignore, unpleasantness, and loudness after using a digital polytherapeutic app prototype that focuses on relief, relaxation, and attention-focused retraining. In addition, their improvements were significantly greater than for the control group, which received a common white noise app.

Researchers called the results “promising” for a condition that has no cure and few successful treatments. “What this therapy does is essentially rewire the brain in a way that de-emphasizes the sound of the tinnitus to a background noise that has no meaning or relevance to the listener,” lead author Grant Searchfield, PhD, associate professor of audiology at the University of Auckland, New Zealand, said in a press release.

The findings were published online in Frontiers in Neurology.
 

Worldwide problem

A recent study showed more than 740 million adults worldwide (nearly 15% of the population) have experienced at least one symptom of tinnitus – and about 120 million are severely affected. Tinnitus is the perception of a ringing, buzzing, whistling, or hissing noise in one or both ears when no external source of the sound is present. Often caused by damage to the auditory system, tinnitus can also be a symptom of a wide range of medical conditions and has been identified as a side effect of COVID-19 vaccination. In its most severe form, which is associated with hearing loss, tinnitus can also affect a patient’s mental, emotional, and social health.

For the current study, participants with tinnitus were randomly assigned to a popular app that uses white noise (control group, n = 30) or to the UpSilent app (n = 31). The UpSilent group received a smartphone app, Bluetooth bone conduction headphones, a Bluetooth neck pillow speaker for sleep, and written counseling materials. Participants in the control group received a widely available app called “White Noise” and in-ear wired headphones.
 

‘Quicker and more effective’

Both groups reported reductions in ratings of annoyance, inability to ignore, unpleasantness, and loudness at 12 weeks. But significantly more of the UpSilent group reported clinically meaningful improvement compared with the control group (65% vs. 43%, respectively; P = .049).

“Earlier trials have found white noise, goal-based counseling, goal-oriented games, and other technology-based therapies are effective for some people some of the time,” Dr. Searchfield said. “This is quicker and more effective, taking 12 weeks rather than 12 months for more individuals to gain some control,” he added.

The investigators noted that the study was not designed to determine which of the app’s functions of passive listening, active listening, or counseling contributed to symptom improvement.

The next step will be to refine the prototype and proceed to larger local and international trials with a view toward approval by the U.S. Food and Drug Administration, they reported.

The researchers hope the app will be clinically available in about 6 months.

The study was funded by Return on Science, Auckland UniServices. Dr. Searchfield is a founder and scientific officer for TrueSilence, a spinout company of the University of Auckland, and has a financial interest in TrueSilence. His coauthor has reported no relevant financial relationships.

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

More than half of patients with mild traumatic brain injury (TBI) and a negative head CT scan have not recovered completely 6 months after sustaining their injury, new data from the TRACK-TBI study shows.

“Seeing that more than half of the GCS [Glasgow Coma Score] 15, CT-negative TBI cohort in our study were not back to their preinjury baseline at 6 months was surprising and impacts the millions of Americans who suffer from concussions annually,” said lead author Debbie Madhok, MD, with department of emergency medicine, University of California, San Francisco.

“These results highlight the importance of improving care pathways for concussion, particularly from the emergency department,” Dr. Madhok said.

The findings were published online in JAMA Network Open.

The short- and long-term outcomes in the large group of patients who come into the ED with TBI, a GCS of 15, and without acute intracranial traumatic injury (defined as a negative head CT scan) remain poorly understood, the investigators noted. To investigate further, they evaluated outcomes at 2 weeks and 6 months in 991 of these patients (mean age, 38 years; 64% men) from the TRACK-TBI study.

Among the 751 (76%) participants followed up at 2 weeks after the injury, only 204 (27%) had functional recovery – with a Glasgow Outcome Scale-Extended (GOS-E) score of 8. The remaining 547 (73%) had incomplete recovery (GOS-E scores < 8).

Among the 659 patients (66%) followed up at 6 months after the injury, 287 (44%) had functional recovery and 372 (56%) had incomplete recovery.

Most patients who failed to recover completely reported they had not returned to their preinjury life (88%). They described trouble returning to social activities outside the home and disruptions in family relationships and friendships.

The researchers noted that the study population had a high rate of preinjury psychiatric comorbidities, and these patients were more likely to have incomplete recovery than those without psychiatric comorbidities. This aligns with results from previous studies, they added.

The investigators also noted that patients with mild TBI without acute intracranial trauma are typically managed by ED personnel.

“These findings highlight the importance of ED clinicians being aware of the risk of incomplete recovery for patients with a mild TBI (that is, GCS score of 15 and negative head CT scan) and providing accurate education and timely referral information before ED discharge,” they wrote.

The study was funded by grants from the National Foundation of Emergency Medicine, the National Institute of Neurological Disorders and Stroke, and the U.S. Department of Defense Traumatic Brain Injury Endpoints Development Initiative. Dr. Madhok has reported no relevant financial relationships.

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

More than half of patients with mild traumatic brain injury (TBI) and a negative head CT scan have not recovered completely 6 months after sustaining their injury, new data from the TRACK-TBI study shows.

“Seeing that more than half of the GCS [Glasgow Coma Score] 15, CT-negative TBI cohort in our study were not back to their preinjury baseline at 6 months was surprising and impacts the millions of Americans who suffer from concussions annually,” said lead author Debbie Madhok, MD, with department of emergency medicine, University of California, San Francisco.

“These results highlight the importance of improving care pathways for concussion, particularly from the emergency department,” Dr. Madhok said.

The findings were published online in JAMA Network Open.

The short- and long-term outcomes in the large group of patients who come into the ED with TBI, a GCS of 15, and without acute intracranial traumatic injury (defined as a negative head CT scan) remain poorly understood, the investigators noted. To investigate further, they evaluated outcomes at 2 weeks and 6 months in 991 of these patients (mean age, 38 years; 64% men) from the TRACK-TBI study.

Among the 751 (76%) participants followed up at 2 weeks after the injury, only 204 (27%) had functional recovery – with a Glasgow Outcome Scale-Extended (GOS-E) score of 8. The remaining 547 (73%) had incomplete recovery (GOS-E scores < 8).

Among the 659 patients (66%) followed up at 6 months after the injury, 287 (44%) had functional recovery and 372 (56%) had incomplete recovery.

Most patients who failed to recover completely reported they had not returned to their preinjury life (88%). They described trouble returning to social activities outside the home and disruptions in family relationships and friendships.

The researchers noted that the study population had a high rate of preinjury psychiatric comorbidities, and these patients were more likely to have incomplete recovery than those without psychiatric comorbidities. This aligns with results from previous studies, they added.

The investigators also noted that patients with mild TBI without acute intracranial trauma are typically managed by ED personnel.

“These findings highlight the importance of ED clinicians being aware of the risk of incomplete recovery for patients with a mild TBI (that is, GCS score of 15 and negative head CT scan) and providing accurate education and timely referral information before ED discharge,” they wrote.

The study was funded by grants from the National Foundation of Emergency Medicine, the National Institute of Neurological Disorders and Stroke, and the U.S. Department of Defense Traumatic Brain Injury Endpoints Development Initiative. Dr. Madhok has reported no relevant financial relationships.

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

More than half of patients with mild traumatic brain injury (TBI) and a negative head CT scan have not recovered completely 6 months after sustaining their injury, new data from the TRACK-TBI study shows.

“Seeing that more than half of the GCS [Glasgow Coma Score] 15, CT-negative TBI cohort in our study were not back to their preinjury baseline at 6 months was surprising and impacts the millions of Americans who suffer from concussions annually,” said lead author Debbie Madhok, MD, with department of emergency medicine, University of California, San Francisco.

“These results highlight the importance of improving care pathways for concussion, particularly from the emergency department,” Dr. Madhok said.

The findings were published online in JAMA Network Open.

The short- and long-term outcomes in the large group of patients who come into the ED with TBI, a GCS of 15, and without acute intracranial traumatic injury (defined as a negative head CT scan) remain poorly understood, the investigators noted. To investigate further, they evaluated outcomes at 2 weeks and 6 months in 991 of these patients (mean age, 38 years; 64% men) from the TRACK-TBI study.

Among the 751 (76%) participants followed up at 2 weeks after the injury, only 204 (27%) had functional recovery – with a Glasgow Outcome Scale-Extended (GOS-E) score of 8. The remaining 547 (73%) had incomplete recovery (GOS-E scores < 8).

Among the 659 patients (66%) followed up at 6 months after the injury, 287 (44%) had functional recovery and 372 (56%) had incomplete recovery.

Most patients who failed to recover completely reported they had not returned to their preinjury life (88%). They described trouble returning to social activities outside the home and disruptions in family relationships and friendships.

The researchers noted that the study population had a high rate of preinjury psychiatric comorbidities, and these patients were more likely to have incomplete recovery than those without psychiatric comorbidities. This aligns with results from previous studies, they added.

The investigators also noted that patients with mild TBI without acute intracranial trauma are typically managed by ED personnel.

“These findings highlight the importance of ED clinicians being aware of the risk of incomplete recovery for patients with a mild TBI (that is, GCS score of 15 and negative head CT scan) and providing accurate education and timely referral information before ED discharge,” they wrote.

The study was funded by grants from the National Foundation of Emergency Medicine, the National Institute of Neurological Disorders and Stroke, and the U.S. Department of Defense Traumatic Brain Injury Endpoints Development Initiative. Dr. Madhok has reported no relevant financial relationships.

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

Children who do not get enough sleep for one night can be cranky, groggy, or meltdown prone the next day.

Over time, though, insufficient sleep may impair neurodevelopment in ways that can be measured on brain scans and tests long term, a new study shows.

Research published in The Lancet Child & Adolescent Health found that 9- and 10-year-olds who do not get at least 9 hours of sleep most nights tend to have less gray matter and smaller areas of the brain responsible for attention, memory, and inhibition control, relative to children who do get enough sleep.

The researchers also found a relationship between insufficient sleep and disrupted connections between the basal ganglia and cortical regions of the brain. These disruptions appeared to be linked to depression, thought problems, and impairments in crystallized intelligence, a type of intelligence that depends on memory.

The overall patterns persisted 2 years later, even as those who got enough sleep at baseline gradually slept less over time, while those who were not getting enough sleep to begin with continued to sleep about the same amount, the researchers reported.

The results bolster the case for delaying school start times, as California recently did, according one researcher who was not involved in the study.
 

The ABCD Study

To examine how insufficient sleep affects children’s mental health, cognition, brain function, and brain structure over 2 years, Ze Wang, PhD, professor of diagnostic radiology and nuclear medicine at the University of Maryland, Baltimore, and colleagues analyzed data from the ongoing Adolescent Brain Cognitive Development (ABCD) Study. The ABCD Study is tracking the biologic and behavioral development of more than 11,000 children in the United States who were recruited for the study when they were 9 or 10 years old.

For their new analysis, Dr. Wang’s group focused on 6,042 participants: 3,021 children with insufficient sleep who were matched with an equal number of participants who were similar in many respects, including sex, socioeconomic status, and puberty status, except they got at least 9 hours of sleep. They also looked at outcomes 2 years later from 749 of the matched pairs who had results available.

The investigators determined sleep duration based on how parents answered the question: “How many hours of sleep does your child get on most nights in the past 6 months?” Possible answers included at least 9 hours, 8-9 hours, 7-8 hours, 5-7 hours, or less than 5 hours. They also looked at functional and structural MRI scans, test results, and responses to questionnaires.

Negative effects of inadequate sleep were spread over “several different domains including brain structure, function, cognition, behavior, and mental health,” Dr. Wang said.

The strength of the relationship between sleep duration and the various outcomes was “modest” and based on group averages, he said. So, a given child who does not sleep for 9 hours most nights won’t necessarily perform worse than a child who gets enough sleep.

Still, modest effects may accumulate and have lasting consequences, Dr. Wang said.
 

Crystallized intelligence

The researchers looked at 42 behavioral outcomes, 32 of which were significantly different between the groups. Four outcomes in particular – depression, thought problems, performance on a picture-vocabulary test, and crystallized intelligence – were areas where insufficient sleep seemed to have a larger negative effect.

Sleep duration’s relationship with crystallized intelligence was twice that for fluid intelligence, which does not depend on memory.

“Sleep affects memory,” Dr. Wang said. “Crystallized intelligence depends on learned skills and knowledge, which are memory. In this sense, sleep is related to crystallized intelligence.”

One limitation of the study is that some parents may not accurately report how much sleep their child gets, Dr. Wang acknowledged. Children may be awake when parents think they are asleep, for example.

And although the results show getting 9 hours of sleep may help neurocognitive development, it’s also possible that excessive amounts of sleep could be problematic, the study authors wrote.

Further experiments are needed to prove that insufficient sleep – and not some other, unaccounted for factor – causes the observed impairments in neurodevelopment.

To promote healthy sleep, parents should keep a strict routine for their children, such as a regular bedtime and no electronic devices in the bedroom, Dr. Wang suggested. More physical activity during the day also should help.

If children have high levels of stress and depression, “finding the source is critical,” he said. Likewise, clinicians should consider how mental health can affect their patients’ sleep.
 

More to healthy sleep than duration

“This study both aligns with and advances existing research on the importance of sufficient sleep for child well-being,” said Ariel A. Williamson, PhD, DBSM, a psychologist and pediatric sleep expert in the department of child and adolescent psychiatry and behavioral sciences at Children’s Hospital of Philadelphia and assistant professor of psychiatry and pediatrics at University of Pennsylvania, also in Philadelphia.

The researchers used rigorous propensity score matching, longitudinal data, and brain imaging, which are “innovative methods that provide more evidence on potential mechanisms linking insufficient sleep and child outcomes,” said Dr. Williamson, who was not involved in the study.

While the investigators focused on sleep duration, child sleep health is multidimensional and includes other elements like timing and perception of sleep quality, Dr. Williamson noted. “For example, some research shows that having a sleep schedule that varies night to night is linked to poor child outcomes.”

Dr. Williamson tells families and clinicians that “sleep is a pillar of health,” equal to diet and exercise. That said, sleep recommendations need to fit within a family’s life – taking into account after school activities and late-night homework sessions. But extending sleep by just “20-30 minutes can make a meaningful difference for daytime functioning,” Dr. Williamson said.
 

Start school later?

Researchers have only relatively recently begun to understand how insufficient sleep affects adolescent neurocognitive development long term, and this study provides “crucial evidence” about the consequences, Lydia Gabriela Speyer, PhD, said in an editorial published with the study. Dr. Speyer is affiliated with the department of psychology at the University of Cambridge (England).

“Given the novel finding that insufficient sleep is associated with changes in brain structure and connectivity that are long-lasting, early intervention is crucial because such neural changes are probably not reversible and might consequently affect adolescents’ development into adulthood,” Dr. Speyer wrote.

Delaying school start times could be one way to help kids get more sleep. The American Academy of Pediatrics and the American Academy of Sleep Medicine recommend that middle schools and high schools start no earlier than 8:30 a.m. to better align with students’ circadian rhythm, Dr. Speyer noted.

As it is in the United States, most schools start closer to 8 a.m. In California, though, a law that went into effect on July 1 prohibits high schools from starting before 8:30 a.m. Other states are weighing similar legislation.

The research was supported by the National Institutes of Health. Dr. Wang and his coauthors and Dr. Speyer had no conflict of interest disclosures. Dr. Williamson is a sleep expert for the Pediatric Sleep Council (www.babysleep.com), which provides free information about early childhood sleep, but she does not receive compensation for this role.
 

Children who do not get enough sleep for one night can be cranky, groggy, or meltdown prone the next day.

Over time, though, insufficient sleep may impair neurodevelopment in ways that can be measured on brain scans and tests long term, a new study shows.

Research published in The Lancet Child & Adolescent Health found that 9- and 10-year-olds who do not get at least 9 hours of sleep most nights tend to have less gray matter and smaller areas of the brain responsible for attention, memory, and inhibition control, relative to children who do get enough sleep.

The researchers also found a relationship between insufficient sleep and disrupted connections between the basal ganglia and cortical regions of the brain. These disruptions appeared to be linked to depression, thought problems, and impairments in crystallized intelligence, a type of intelligence that depends on memory.

The overall patterns persisted 2 years later, even as those who got enough sleep at baseline gradually slept less over time, while those who were not getting enough sleep to begin with continued to sleep about the same amount, the researchers reported.

The results bolster the case for delaying school start times, as California recently did, according one researcher who was not involved in the study.
 

The ABCD Study

To examine how insufficient sleep affects children’s mental health, cognition, brain function, and brain structure over 2 years, Ze Wang, PhD, professor of diagnostic radiology and nuclear medicine at the University of Maryland, Baltimore, and colleagues analyzed data from the ongoing Adolescent Brain Cognitive Development (ABCD) Study. The ABCD Study is tracking the biologic and behavioral development of more than 11,000 children in the United States who were recruited for the study when they were 9 or 10 years old.

For their new analysis, Dr. Wang’s group focused on 6,042 participants: 3,021 children with insufficient sleep who were matched with an equal number of participants who were similar in many respects, including sex, socioeconomic status, and puberty status, except they got at least 9 hours of sleep. They also looked at outcomes 2 years later from 749 of the matched pairs who had results available.

The investigators determined sleep duration based on how parents answered the question: “How many hours of sleep does your child get on most nights in the past 6 months?” Possible answers included at least 9 hours, 8-9 hours, 7-8 hours, 5-7 hours, or less than 5 hours. They also looked at functional and structural MRI scans, test results, and responses to questionnaires.

Negative effects of inadequate sleep were spread over “several different domains including brain structure, function, cognition, behavior, and mental health,” Dr. Wang said.

The strength of the relationship between sleep duration and the various outcomes was “modest” and based on group averages, he said. So, a given child who does not sleep for 9 hours most nights won’t necessarily perform worse than a child who gets enough sleep.

Still, modest effects may accumulate and have lasting consequences, Dr. Wang said.
 

Crystallized intelligence

The researchers looked at 42 behavioral outcomes, 32 of which were significantly different between the groups. Four outcomes in particular – depression, thought problems, performance on a picture-vocabulary test, and crystallized intelligence – were areas where insufficient sleep seemed to have a larger negative effect.

Sleep duration’s relationship with crystallized intelligence was twice that for fluid intelligence, which does not depend on memory.

“Sleep affects memory,” Dr. Wang said. “Crystallized intelligence depends on learned skills and knowledge, which are memory. In this sense, sleep is related to crystallized intelligence.”

One limitation of the study is that some parents may not accurately report how much sleep their child gets, Dr. Wang acknowledged. Children may be awake when parents think they are asleep, for example.

And although the results show getting 9 hours of sleep may help neurocognitive development, it’s also possible that excessive amounts of sleep could be problematic, the study authors wrote.

Further experiments are needed to prove that insufficient sleep – and not some other, unaccounted for factor – causes the observed impairments in neurodevelopment.

To promote healthy sleep, parents should keep a strict routine for their children, such as a regular bedtime and no electronic devices in the bedroom, Dr. Wang suggested. More physical activity during the day also should help.

If children have high levels of stress and depression, “finding the source is critical,” he said. Likewise, clinicians should consider how mental health can affect their patients’ sleep.
 

More to healthy sleep than duration

“This study both aligns with and advances existing research on the importance of sufficient sleep for child well-being,” said Ariel A. Williamson, PhD, DBSM, a psychologist and pediatric sleep expert in the department of child and adolescent psychiatry and behavioral sciences at Children’s Hospital of Philadelphia and assistant professor of psychiatry and pediatrics at University of Pennsylvania, also in Philadelphia.

The researchers used rigorous propensity score matching, longitudinal data, and brain imaging, which are “innovative methods that provide more evidence on potential mechanisms linking insufficient sleep and child outcomes,” said Dr. Williamson, who was not involved in the study.

While the investigators focused on sleep duration, child sleep health is multidimensional and includes other elements like timing and perception of sleep quality, Dr. Williamson noted. “For example, some research shows that having a sleep schedule that varies night to night is linked to poor child outcomes.”

Dr. Williamson tells families and clinicians that “sleep is a pillar of health,” equal to diet and exercise. That said, sleep recommendations need to fit within a family’s life – taking into account after school activities and late-night homework sessions. But extending sleep by just “20-30 minutes can make a meaningful difference for daytime functioning,” Dr. Williamson said.
 

Start school later?

Researchers have only relatively recently begun to understand how insufficient sleep affects adolescent neurocognitive development long term, and this study provides “crucial evidence” about the consequences, Lydia Gabriela Speyer, PhD, said in an editorial published with the study. Dr. Speyer is affiliated with the department of psychology at the University of Cambridge (England).

“Given the novel finding that insufficient sleep is associated with changes in brain structure and connectivity that are long-lasting, early intervention is crucial because such neural changes are probably not reversible and might consequently affect adolescents’ development into adulthood,” Dr. Speyer wrote.

Delaying school start times could be one way to help kids get more sleep. The American Academy of Pediatrics and the American Academy of Sleep Medicine recommend that middle schools and high schools start no earlier than 8:30 a.m. to better align with students’ circadian rhythm, Dr. Speyer noted.

As it is in the United States, most schools start closer to 8 a.m. In California, though, a law that went into effect on July 1 prohibits high schools from starting before 8:30 a.m. Other states are weighing similar legislation.

The research was supported by the National Institutes of Health. Dr. Wang and his coauthors and Dr. Speyer had no conflict of interest disclosures. Dr. Williamson is a sleep expert for the Pediatric Sleep Council (www.babysleep.com), which provides free information about early childhood sleep, but she does not receive compensation for this role.
 

Children who do not get enough sleep for one night can be cranky, groggy, or meltdown prone the next day.

Over time, though, insufficient sleep may impair neurodevelopment in ways that can be measured on brain scans and tests long term, a new study shows.

Research published in The Lancet Child & Adolescent Health found that 9- and 10-year-olds who do not get at least 9 hours of sleep most nights tend to have less gray matter and smaller areas of the brain responsible for attention, memory, and inhibition control, relative to children who do get enough sleep.

The researchers also found a relationship between insufficient sleep and disrupted connections between the basal ganglia and cortical regions of the brain. These disruptions appeared to be linked to depression, thought problems, and impairments in crystallized intelligence, a type of intelligence that depends on memory.

The overall patterns persisted 2 years later, even as those who got enough sleep at baseline gradually slept less over time, while those who were not getting enough sleep to begin with continued to sleep about the same amount, the researchers reported.

The results bolster the case for delaying school start times, as California recently did, according one researcher who was not involved in the study.
 

The ABCD Study

To examine how insufficient sleep affects children’s mental health, cognition, brain function, and brain structure over 2 years, Ze Wang, PhD, professor of diagnostic radiology and nuclear medicine at the University of Maryland, Baltimore, and colleagues analyzed data from the ongoing Adolescent Brain Cognitive Development (ABCD) Study. The ABCD Study is tracking the biologic and behavioral development of more than 11,000 children in the United States who were recruited for the study when they were 9 or 10 years old.

For their new analysis, Dr. Wang’s group focused on 6,042 participants: 3,021 children with insufficient sleep who were matched with an equal number of participants who were similar in many respects, including sex, socioeconomic status, and puberty status, except they got at least 9 hours of sleep. They also looked at outcomes 2 years later from 749 of the matched pairs who had results available.

The investigators determined sleep duration based on how parents answered the question: “How many hours of sleep does your child get on most nights in the past 6 months?” Possible answers included at least 9 hours, 8-9 hours, 7-8 hours, 5-7 hours, or less than 5 hours. They also looked at functional and structural MRI scans, test results, and responses to questionnaires.

Negative effects of inadequate sleep were spread over “several different domains including brain structure, function, cognition, behavior, and mental health,” Dr. Wang said.

The strength of the relationship between sleep duration and the various outcomes was “modest” and based on group averages, he said. So, a given child who does not sleep for 9 hours most nights won’t necessarily perform worse than a child who gets enough sleep.

Still, modest effects may accumulate and have lasting consequences, Dr. Wang said.
 

Crystallized intelligence

The researchers looked at 42 behavioral outcomes, 32 of which were significantly different between the groups. Four outcomes in particular – depression, thought problems, performance on a picture-vocabulary test, and crystallized intelligence – were areas where insufficient sleep seemed to have a larger negative effect.

Sleep duration’s relationship with crystallized intelligence was twice that for fluid intelligence, which does not depend on memory.

“Sleep affects memory,” Dr. Wang said. “Crystallized intelligence depends on learned skills and knowledge, which are memory. In this sense, sleep is related to crystallized intelligence.”

One limitation of the study is that some parents may not accurately report how much sleep their child gets, Dr. Wang acknowledged. Children may be awake when parents think they are asleep, for example.

And although the results show getting 9 hours of sleep may help neurocognitive development, it’s also possible that excessive amounts of sleep could be problematic, the study authors wrote.

Further experiments are needed to prove that insufficient sleep – and not some other, unaccounted for factor – causes the observed impairments in neurodevelopment.

To promote healthy sleep, parents should keep a strict routine for their children, such as a regular bedtime and no electronic devices in the bedroom, Dr. Wang suggested. More physical activity during the day also should help.

If children have high levels of stress and depression, “finding the source is critical,” he said. Likewise, clinicians should consider how mental health can affect their patients’ sleep.
 

More to healthy sleep than duration

“This study both aligns with and advances existing research on the importance of sufficient sleep for child well-being,” said Ariel A. Williamson, PhD, DBSM, a psychologist and pediatric sleep expert in the department of child and adolescent psychiatry and behavioral sciences at Children’s Hospital of Philadelphia and assistant professor of psychiatry and pediatrics at University of Pennsylvania, also in Philadelphia.

The researchers used rigorous propensity score matching, longitudinal data, and brain imaging, which are “innovative methods that provide more evidence on potential mechanisms linking insufficient sleep and child outcomes,” said Dr. Williamson, who was not involved in the study.

While the investigators focused on sleep duration, child sleep health is multidimensional and includes other elements like timing and perception of sleep quality, Dr. Williamson noted. “For example, some research shows that having a sleep schedule that varies night to night is linked to poor child outcomes.”

Dr. Williamson tells families and clinicians that “sleep is a pillar of health,” equal to diet and exercise. That said, sleep recommendations need to fit within a family’s life – taking into account after school activities and late-night homework sessions. But extending sleep by just “20-30 minutes can make a meaningful difference for daytime functioning,” Dr. Williamson said.
 

Start school later?

Researchers have only relatively recently begun to understand how insufficient sleep affects adolescent neurocognitive development long term, and this study provides “crucial evidence” about the consequences, Lydia Gabriela Speyer, PhD, said in an editorial published with the study. Dr. Speyer is affiliated with the department of psychology at the University of Cambridge (England).

“Given the novel finding that insufficient sleep is associated with changes in brain structure and connectivity that are long-lasting, early intervention is crucial because such neural changes are probably not reversible and might consequently affect adolescents’ development into adulthood,” Dr. Speyer wrote.

Delaying school start times could be one way to help kids get more sleep. The American Academy of Pediatrics and the American Academy of Sleep Medicine recommend that middle schools and high schools start no earlier than 8:30 a.m. to better align with students’ circadian rhythm, Dr. Speyer noted.

As it is in the United States, most schools start closer to 8 a.m. In California, though, a law that went into effect on July 1 prohibits high schools from starting before 8:30 a.m. Other states are weighing similar legislation.

The research was supported by the National Institutes of Health. Dr. Wang and his coauthors and Dr. Speyer had no conflict of interest disclosures. Dr. Williamson is a sleep expert for the Pediatric Sleep Council (www.babysleep.com), which provides free information about early childhood sleep, but she does not receive compensation for this role.
 

Polyneuropathy (PNP) remains a common comorbidity among patients with chronic obstructive pulmonary disease (COPD), and better screening strategies are needed to identify the condition and improve patients’ quality of life, according to authors of a recent review.

“Recent advances demonstrate that the relationship between COPD and the nervous system is extensive, and patients are at increased risk of stroke, dementia, depression, and other neurological and psychiatric conditions, even after controlling for the main confounding risk factors, such as age and smoking,” write Irina Odajiu, MD, of Colentina Clinical Hospital, Bucharest, Romania, and colleagues. However, data on the relationship between COPD and peripheral nervous system pathology are limited.

PNP is distinct from peripheral neuropathy and neuropathy, the researchers emphasize.

“Polyneuropathy implies a homogeneous process affecting peripheral nerves, specifically distal nerves, more severely than proximal ones,” while peripheral neuropathy refers to any disorder of the peripheral nervous system, they explain.

In an article published in Respiratory Medicine, the authors summarize the latest data on the association between COPD and polyneuropathy. They reviewed data from 21 studies published between 1981 and 2021. All studies included adults with COPD. The mean age of the patients was 55-65 years.

Peripheral neuropathy represents a significant comorbidity among patients with COPD. The percentage of cases of peripheral neuropathy among patients in the study populations ranged from 15% to 93.8%. Of these cases, the majority were of axonal sensory polyneuropathy. In most of the studies, the neuropathy affected the lower limbs more than the upper limbs.

“Additionally, in most presented studies, peripheral neuropathy correlated with disease duration and hypoxemia severity; the longer the duration and the more severe hypoxia, the more severe peripheral neuropathy was,” the researchers note.

Overall, potential predisposing factors for PNP among patients with COPD (in addition to chronic hypoxemia) included older age, poor nutrition, systemic inflammation, COPD medications, smoking, and increased partial pressure of carbon dioxide (hypercapnia).

Several strategies for managing peripheral neuropathy for patients with COPD were described. Prophylaxis options include neuroprotection with hormones such as progesterone, neuronal growth factors, and corticosteroids, although none have shown high levels of effectiveness, the researchers write. Topical treatment with muscarinic antagonists has shown some potential and may be a practical therapeutic choice, they say. Oxygen support, including hyperbaric oxygen therapy, has demonstrated healing of diabetic leg ulcers associated with PNP and has led to improvements in pain-related symptoms and quality-of-life scores, they add.

Although PNP is often present in patients with COPD, no association between COPD severity and PNP has been determined, the researchers write in their discussion section.

“Moreover, the current data do not indicate a relationship between COPD stages, GOLD classification, or degree of obstruction and PNP,” they say.

The data support screening of all COPD patients for PNP, both clinically and with electrodiagnostic studies, despite the absence of current specific COPD-related PNP screening tools, they write.

The study received no outside funding. The researchers have disclosed no relevant financial relationships.

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

Polyneuropathy (PNP) remains a common comorbidity among patients with chronic obstructive pulmonary disease (COPD), and better screening strategies are needed to identify the condition and improve patients’ quality of life, according to authors of a recent review.

“Recent advances demonstrate that the relationship between COPD and the nervous system is extensive, and patients are at increased risk of stroke, dementia, depression, and other neurological and psychiatric conditions, even after controlling for the main confounding risk factors, such as age and smoking,” write Irina Odajiu, MD, of Colentina Clinical Hospital, Bucharest, Romania, and colleagues. However, data on the relationship between COPD and peripheral nervous system pathology are limited.

PNP is distinct from peripheral neuropathy and neuropathy, the researchers emphasize.

“Polyneuropathy implies a homogeneous process affecting peripheral nerves, specifically distal nerves, more severely than proximal ones,” while peripheral neuropathy refers to any disorder of the peripheral nervous system, they explain.

In an article published in Respiratory Medicine, the authors summarize the latest data on the association between COPD and polyneuropathy. They reviewed data from 21 studies published between 1981 and 2021. All studies included adults with COPD. The mean age of the patients was 55-65 years.

Peripheral neuropathy represents a significant comorbidity among patients with COPD. The percentage of cases of peripheral neuropathy among patients in the study populations ranged from 15% to 93.8%. Of these cases, the majority were of axonal sensory polyneuropathy. In most of the studies, the neuropathy affected the lower limbs more than the upper limbs.

“Additionally, in most presented studies, peripheral neuropathy correlated with disease duration and hypoxemia severity; the longer the duration and the more severe hypoxia, the more severe peripheral neuropathy was,” the researchers note.

Overall, potential predisposing factors for PNP among patients with COPD (in addition to chronic hypoxemia) included older age, poor nutrition, systemic inflammation, COPD medications, smoking, and increased partial pressure of carbon dioxide (hypercapnia).

Several strategies for managing peripheral neuropathy for patients with COPD were described. Prophylaxis options include neuroprotection with hormones such as progesterone, neuronal growth factors, and corticosteroids, although none have shown high levels of effectiveness, the researchers write. Topical treatment with muscarinic antagonists has shown some potential and may be a practical therapeutic choice, they say. Oxygen support, including hyperbaric oxygen therapy, has demonstrated healing of diabetic leg ulcers associated with PNP and has led to improvements in pain-related symptoms and quality-of-life scores, they add.

Although PNP is often present in patients with COPD, no association between COPD severity and PNP has been determined, the researchers write in their discussion section.

“Moreover, the current data do not indicate a relationship between COPD stages, GOLD classification, or degree of obstruction and PNP,” they say.

The data support screening of all COPD patients for PNP, both clinically and with electrodiagnostic studies, despite the absence of current specific COPD-related PNP screening tools, they write.

The study received no outside funding. The researchers have disclosed no relevant financial relationships.

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

Polyneuropathy (PNP) remains a common comorbidity among patients with chronic obstructive pulmonary disease (COPD), and better screening strategies are needed to identify the condition and improve patients’ quality of life, according to authors of a recent review.

“Recent advances demonstrate that the relationship between COPD and the nervous system is extensive, and patients are at increased risk of stroke, dementia, depression, and other neurological and psychiatric conditions, even after controlling for the main confounding risk factors, such as age and smoking,” write Irina Odajiu, MD, of Colentina Clinical Hospital, Bucharest, Romania, and colleagues. However, data on the relationship between COPD and peripheral nervous system pathology are limited.

PNP is distinct from peripheral neuropathy and neuropathy, the researchers emphasize.

“Polyneuropathy implies a homogeneous process affecting peripheral nerves, specifically distal nerves, more severely than proximal ones,” while peripheral neuropathy refers to any disorder of the peripheral nervous system, they explain.

In an article published in Respiratory Medicine, the authors summarize the latest data on the association between COPD and polyneuropathy. They reviewed data from 21 studies published between 1981 and 2021. All studies included adults with COPD. The mean age of the patients was 55-65 years.

Peripheral neuropathy represents a significant comorbidity among patients with COPD. The percentage of cases of peripheral neuropathy among patients in the study populations ranged from 15% to 93.8%. Of these cases, the majority were of axonal sensory polyneuropathy. In most of the studies, the neuropathy affected the lower limbs more than the upper limbs.

“Additionally, in most presented studies, peripheral neuropathy correlated with disease duration and hypoxemia severity; the longer the duration and the more severe hypoxia, the more severe peripheral neuropathy was,” the researchers note.

Overall, potential predisposing factors for PNP among patients with COPD (in addition to chronic hypoxemia) included older age, poor nutrition, systemic inflammation, COPD medications, smoking, and increased partial pressure of carbon dioxide (hypercapnia).

Several strategies for managing peripheral neuropathy for patients with COPD were described. Prophylaxis options include neuroprotection with hormones such as progesterone, neuronal growth factors, and corticosteroids, although none have shown high levels of effectiveness, the researchers write. Topical treatment with muscarinic antagonists has shown some potential and may be a practical therapeutic choice, they say. Oxygen support, including hyperbaric oxygen therapy, has demonstrated healing of diabetic leg ulcers associated with PNP and has led to improvements in pain-related symptoms and quality-of-life scores, they add.

Although PNP is often present in patients with COPD, no association between COPD severity and PNP has been determined, the researchers write in their discussion section.

“Moreover, the current data do not indicate a relationship between COPD stages, GOLD classification, or degree of obstruction and PNP,” they say.

The data support screening of all COPD patients for PNP, both clinically and with electrodiagnostic studies, despite the absence of current specific COPD-related PNP screening tools, they write.

The study received no outside funding. The researchers have disclosed no relevant financial relationships.

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

The Food and Drug Administration has approved Abbott Laboratories’ new Proclaim Plus spinal cord stimulation (SCS) system featuring FlexBurst360 therapy for the treatment of patients with chronic pain, the company announced Aug. 23.

The “next generation” of its proprietary BurstDR stimulation, FlexBurst360 therapy, provides pain coverage across up to six areas of the trunk and limbs, with programming that can be adjusted as a patient’s individual therapeutic needs evolve, the manufacturer noted.

“Using FlexBurst360 therapy on the Proclaim Plus system, physicians can identify the lowest effective dose of stimulation for each patient and adapt it based on evolving pain needs,” the company said in a news release.

The system also has therapy settings accessed with a mobile device.

Through their mobile devices, patients can access the manufacturer’s NeuroSphere Virtual Clinic, which allows them to communicate with their providers and receive remote adjustments to their therapeutic settings as needed.
 

Game changer?

The newly approved system has a battery life of up to 10 years, akin to the company’s Proclaim XR neurostimulation system for chronic pain. As reported at the time by this news organization, that system was approved by the FDA in 2019.

More than 50 million people in the United States experience chronic pain and most have pain in more than one area of the body. Steven Falowski, MD, with Argires Marotti Neurosurgical Associates of Lancaster, Pa., noted in the release that spinal cord stimulation has provided “tremendous relief” for patients with chronic pain.

Dr. Falowski added that “with its ability to mimic natural patterns found in the brain, the Abbott BurstDR platform has been a game changer” for these patients.

“However, despite the many benefits of BurstDR, such as being effective as a low-energy stimulation therapy, some patients continue to be burdened ... because of multiple painful areas and evolving pain,” he said.

“Now, with Proclaim Plus and FlexBurst360, an already established platform has been improved to treat more patients who suffer from pain across different body parts and changing pain over time,” said Dr. Falowski.

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

The Food and Drug Administration has approved Abbott Laboratories’ new Proclaim Plus spinal cord stimulation (SCS) system featuring FlexBurst360 therapy for the treatment of patients with chronic pain, the company announced Aug. 23.

The “next generation” of its proprietary BurstDR stimulation, FlexBurst360 therapy, provides pain coverage across up to six areas of the trunk and limbs, with programming that can be adjusted as a patient’s individual therapeutic needs evolve, the manufacturer noted.

“Using FlexBurst360 therapy on the Proclaim Plus system, physicians can identify the lowest effective dose of stimulation for each patient and adapt it based on evolving pain needs,” the company said in a news release.

The system also has therapy settings accessed with a mobile device.

Through their mobile devices, patients can access the manufacturer’s NeuroSphere Virtual Clinic, which allows them to communicate with their providers and receive remote adjustments to their therapeutic settings as needed.
 

Game changer?

The newly approved system has a battery life of up to 10 years, akin to the company’s Proclaim XR neurostimulation system for chronic pain. As reported at the time by this news organization, that system was approved by the FDA in 2019.

More than 50 million people in the United States experience chronic pain and most have pain in more than one area of the body. Steven Falowski, MD, with Argires Marotti Neurosurgical Associates of Lancaster, Pa., noted in the release that spinal cord stimulation has provided “tremendous relief” for patients with chronic pain.

Dr. Falowski added that “with its ability to mimic natural patterns found in the brain, the Abbott BurstDR platform has been a game changer” for these patients.

“However, despite the many benefits of BurstDR, such as being effective as a low-energy stimulation therapy, some patients continue to be burdened ... because of multiple painful areas and evolving pain,” he said.

“Now, with Proclaim Plus and FlexBurst360, an already established platform has been improved to treat more patients who suffer from pain across different body parts and changing pain over time,” said Dr. Falowski.

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

The Food and Drug Administration has approved Abbott Laboratories’ new Proclaim Plus spinal cord stimulation (SCS) system featuring FlexBurst360 therapy for the treatment of patients with chronic pain, the company announced Aug. 23.

The “next generation” of its proprietary BurstDR stimulation, FlexBurst360 therapy, provides pain coverage across up to six areas of the trunk and limbs, with programming that can be adjusted as a patient’s individual therapeutic needs evolve, the manufacturer noted.

“Using FlexBurst360 therapy on the Proclaim Plus system, physicians can identify the lowest effective dose of stimulation for each patient and adapt it based on evolving pain needs,” the company said in a news release.

The system also has therapy settings accessed with a mobile device.

Through their mobile devices, patients can access the manufacturer’s NeuroSphere Virtual Clinic, which allows them to communicate with their providers and receive remote adjustments to their therapeutic settings as needed.
 

Game changer?

The newly approved system has a battery life of up to 10 years, akin to the company’s Proclaim XR neurostimulation system for chronic pain. As reported at the time by this news organization, that system was approved by the FDA in 2019.

More than 50 million people in the United States experience chronic pain and most have pain in more than one area of the body. Steven Falowski, MD, with Argires Marotti Neurosurgical Associates of Lancaster, Pa., noted in the release that spinal cord stimulation has provided “tremendous relief” for patients with chronic pain.

Dr. Falowski added that “with its ability to mimic natural patterns found in the brain, the Abbott BurstDR platform has been a game changer” for these patients.

“However, despite the many benefits of BurstDR, such as being effective as a low-energy stimulation therapy, some patients continue to be burdened ... because of multiple painful areas and evolving pain,” he said.

“Now, with Proclaim Plus and FlexBurst360, an already established platform has been improved to treat more patients who suffer from pain across different body parts and changing pain over time,” said Dr. Falowski.

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

Recently I was reading an article on the histories behind great songs, and one section featured Procol Harem’s “A Whiter Shade of Pale.” It mentioned the verse that incorporated a reference to Chaucer (“As the Miller told his tale”).

This surprised me, as, since I’d first heard the song (1983, in “The Big Chill”) until I read this piece, I thought the line was “As the mirror told its tale.” The idea that it was a misheard Chaucer reference had never occurred to me.

These are called mondegreens. The brain translates the phrase into what it hears, often giving it an entirely different meaning. Manfred Mann’s version of “Blinded by the Light” is absolutely full of them. Even the national anthem isn’t immune (“José can you see by the donzerly light?”)

I’m sure there’s an interesting study idea about the brain and mondegreens, probably involving PET scans, somewhere in there.

The whole thing reminded me of an incident early in residency, I suppose you could call it a medical mondegreen.

During training I never went anywhere without a clipboard and notepad, frantically scribbling tidbits down during rounds, lectures, meetings, whatever. I’d go home and reread them over dinner, trying to commit them to memory.

And somewhere, on rounds early in my first year of training, an attending told me that you can sometimes see a Bell’s palsy cause a mild ipsilateral hemiparesis. This surprised me, but hey, I was the newly minted doctor, there to learn. So I wrote it down, memorized it, and moved on.

Even then, though, it made no sense to me. Of course, I was too afraid to ask other residents about it, for fear they’d think I was an idiot (a point that’s still debatable). And questioning the attending involved seemed unthinkable.

But I wandered through my hospital library (back then, young ones, we used paper textbooks and journals) trying to figure out why a peripheral VII palsy could cause an ipsilateral hemiparesis. It would not let me be.

Nothing.

Finally, one day after a lecture, I asked the attending involved. He had no recollection of having tossed the point out a few months ago, and said there was no reason. This confirmed what I’d already realized – a standard Bell’s palsy couldn’t possibly cause an ipsilateral hemiparesis (I’m not going into the crossed-brainstem syndromes here).

Maybe he’d misspoken and not realized it. Maybe I hadn’t heard him correctly. Maybe a little of both. Hospital hallways are anything but quiet. He also had a pending vacation to the coast which could have distracted him.

Like mondegreens in songs, it was just an error, and looking back on it with 30 years perspective, it’s kind of funny. Fortunately I never sent anyone with a hemiparesis home from the ER thinking they had a Bell’s palsy.

But it makes you realize how flawed human communication can be. By the time I asked the attending about it I’d realized it couldn’t possibly be right. It still leaves me wondering about how much we think we heard correctly but we didn’t – and that we don’t notice.

Sometimes you may think your ears are open, but they might just as well be closed if you don’t hear correctly. In medicine the consequences of such can be a lot worse than screwing up on karaoke night.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

Recently I was reading an article on the histories behind great songs, and one section featured Procol Harem’s “A Whiter Shade of Pale.” It mentioned the verse that incorporated a reference to Chaucer (“As the Miller told his tale”).

This surprised me, as, since I’d first heard the song (1983, in “The Big Chill”) until I read this piece, I thought the line was “As the mirror told its tale.” The idea that it was a misheard Chaucer reference had never occurred to me.

These are called mondegreens. The brain translates the phrase into what it hears, often giving it an entirely different meaning. Manfred Mann’s version of “Blinded by the Light” is absolutely full of them. Even the national anthem isn’t immune (“José can you see by the donzerly light?”)

I’m sure there’s an interesting study idea about the brain and mondegreens, probably involving PET scans, somewhere in there.

The whole thing reminded me of an incident early in residency, I suppose you could call it a medical mondegreen.

During training I never went anywhere without a clipboard and notepad, frantically scribbling tidbits down during rounds, lectures, meetings, whatever. I’d go home and reread them over dinner, trying to commit them to memory.

And somewhere, on rounds early in my first year of training, an attending told me that you can sometimes see a Bell’s palsy cause a mild ipsilateral hemiparesis. This surprised me, but hey, I was the newly minted doctor, there to learn. So I wrote it down, memorized it, and moved on.

Even then, though, it made no sense to me. Of course, I was too afraid to ask other residents about it, for fear they’d think I was an idiot (a point that’s still debatable). And questioning the attending involved seemed unthinkable.

But I wandered through my hospital library (back then, young ones, we used paper textbooks and journals) trying to figure out why a peripheral VII palsy could cause an ipsilateral hemiparesis. It would not let me be.

Nothing.

Finally, one day after a lecture, I asked the attending involved. He had no recollection of having tossed the point out a few months ago, and said there was no reason. This confirmed what I’d already realized – a standard Bell’s palsy couldn’t possibly cause an ipsilateral hemiparesis (I’m not going into the crossed-brainstem syndromes here).

Maybe he’d misspoken and not realized it. Maybe I hadn’t heard him correctly. Maybe a little of both. Hospital hallways are anything but quiet. He also had a pending vacation to the coast which could have distracted him.

Like mondegreens in songs, it was just an error, and looking back on it with 30 years perspective, it’s kind of funny. Fortunately I never sent anyone with a hemiparesis home from the ER thinking they had a Bell’s palsy.

But it makes you realize how flawed human communication can be. By the time I asked the attending about it I’d realized it couldn’t possibly be right. It still leaves me wondering about how much we think we heard correctly but we didn’t – and that we don’t notice.

Sometimes you may think your ears are open, but they might just as well be closed if you don’t hear correctly. In medicine the consequences of such can be a lot worse than screwing up on karaoke night.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

Recently I was reading an article on the histories behind great songs, and one section featured Procol Harem’s “A Whiter Shade of Pale.” It mentioned the verse that incorporated a reference to Chaucer (“As the Miller told his tale”).

This surprised me, as, since I’d first heard the song (1983, in “The Big Chill”) until I read this piece, I thought the line was “As the mirror told its tale.” The idea that it was a misheard Chaucer reference had never occurred to me.

These are called mondegreens. The brain translates the phrase into what it hears, often giving it an entirely different meaning. Manfred Mann’s version of “Blinded by the Light” is absolutely full of them. Even the national anthem isn’t immune (“José can you see by the donzerly light?”)

I’m sure there’s an interesting study idea about the brain and mondegreens, probably involving PET scans, somewhere in there.

The whole thing reminded me of an incident early in residency, I suppose you could call it a medical mondegreen.

During training I never went anywhere without a clipboard and notepad, frantically scribbling tidbits down during rounds, lectures, meetings, whatever. I’d go home and reread them over dinner, trying to commit them to memory.

And somewhere, on rounds early in my first year of training, an attending told me that you can sometimes see a Bell’s palsy cause a mild ipsilateral hemiparesis. This surprised me, but hey, I was the newly minted doctor, there to learn. So I wrote it down, memorized it, and moved on.

Even then, though, it made no sense to me. Of course, I was too afraid to ask other residents about it, for fear they’d think I was an idiot (a point that’s still debatable). And questioning the attending involved seemed unthinkable.

But I wandered through my hospital library (back then, young ones, we used paper textbooks and journals) trying to figure out why a peripheral VII palsy could cause an ipsilateral hemiparesis. It would not let me be.

Nothing.

Finally, one day after a lecture, I asked the attending involved. He had no recollection of having tossed the point out a few months ago, and said there was no reason. This confirmed what I’d already realized – a standard Bell’s palsy couldn’t possibly cause an ipsilateral hemiparesis (I’m not going into the crossed-brainstem syndromes here).

Maybe he’d misspoken and not realized it. Maybe I hadn’t heard him correctly. Maybe a little of both. Hospital hallways are anything but quiet. He also had a pending vacation to the coast which could have distracted him.

Like mondegreens in songs, it was just an error, and looking back on it with 30 years perspective, it’s kind of funny. Fortunately I never sent anyone with a hemiparesis home from the ER thinking they had a Bell’s palsy.

But it makes you realize how flawed human communication can be. By the time I asked the attending about it I’d realized it couldn’t possibly be right. It still leaves me wondering about how much we think we heard correctly but we didn’t – and that we don’t notice.

Sometimes you may think your ears are open, but they might just as well be closed if you don’t hear correctly. In medicine the consequences of such can be a lot worse than screwing up on karaoke night.

Dr. Block has a solo neurology practice in Scottsdale, Ariz.

The U.S. Food and Drug Administration has approved the first oral N-methyl D-aspartate (NMDA) receptor antagonist for the treatment of major depressive disorder (MDD) in adults, its manufacturer has announced.

Auvelity (Axsome Therapeutics) is a proprietary extended-release oral tablet containing dextromethorphan (45 mg) and bupropion (105 mg).

It is the “first and only rapid-acting oral medicine approved for the treatment of MDD with labeling of statistically significant antidepressant efficacy compared to placebo starting at one week,” the company said in a news release.

“The approval of Auvelity represents a milestone in depression treatment based on its novel oral NMDA antagonist mechanism, its rapid antidepressant efficacy demonstrated in controlled trials, and a relatively favorable safety profile,” Maurizio Fava, MD, psychiatrist-in-chief, Massachusetts General Hospital, Boston, added in the release. 
 

‘Milestone’ in depression treatment?

Dr. Fava noted that nearly two-thirds of patients treated with currently available antidepressants fail to respond adequately, and those who do may not achieve clinically meaningful responses for up to 6-8 weeks.

“Given the debilitating nature of depression, the efficacy of Auvelity observed at 1 week and sustained thereafter may have a significant impact on the current treatment paradigm for this condition,” he said.

The company noted the drug was studied in a comprehensive clinical program that included more than 1,100 patients with MDD.

The efficacy of the drug was demonstrated in the GEMINI placebo-controlled study – with confirmatory evidence provided by the ASCEND study, which  compared it with bupropion sustained-release tablets.

Axsome said it expects to launch the new oral medication in the fourth quarter of this year. It is not approved for use in children.

The full prescribing information and medication guide are available online.

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

The U.S. Food and Drug Administration has approved the first oral N-methyl D-aspartate (NMDA) receptor antagonist for the treatment of major depressive disorder (MDD) in adults, its manufacturer has announced.

Auvelity (Axsome Therapeutics) is a proprietary extended-release oral tablet containing dextromethorphan (45 mg) and bupropion (105 mg).

It is the “first and only rapid-acting oral medicine approved for the treatment of MDD with labeling of statistically significant antidepressant efficacy compared to placebo starting at one week,” the company said in a news release.

“The approval of Auvelity represents a milestone in depression treatment based on its novel oral NMDA antagonist mechanism, its rapid antidepressant efficacy demonstrated in controlled trials, and a relatively favorable safety profile,” Maurizio Fava, MD, psychiatrist-in-chief, Massachusetts General Hospital, Boston, added in the release. 
 

‘Milestone’ in depression treatment?

Dr. Fava noted that nearly two-thirds of patients treated with currently available antidepressants fail to respond adequately, and those who do may not achieve clinically meaningful responses for up to 6-8 weeks.

“Given the debilitating nature of depression, the efficacy of Auvelity observed at 1 week and sustained thereafter may have a significant impact on the current treatment paradigm for this condition,” he said.

The company noted the drug was studied in a comprehensive clinical program that included more than 1,100 patients with MDD.

The efficacy of the drug was demonstrated in the GEMINI placebo-controlled study – with confirmatory evidence provided by the ASCEND study, which  compared it with bupropion sustained-release tablets.

Axsome said it expects to launch the new oral medication in the fourth quarter of this year. It is not approved for use in children.

The full prescribing information and medication guide are available online.

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

The U.S. Food and Drug Administration has approved the first oral N-methyl D-aspartate (NMDA) receptor antagonist for the treatment of major depressive disorder (MDD) in adults, its manufacturer has announced.

Auvelity (Axsome Therapeutics) is a proprietary extended-release oral tablet containing dextromethorphan (45 mg) and bupropion (105 mg).

It is the “first and only rapid-acting oral medicine approved for the treatment of MDD with labeling of statistically significant antidepressant efficacy compared to placebo starting at one week,” the company said in a news release.

“The approval of Auvelity represents a milestone in depression treatment based on its novel oral NMDA antagonist mechanism, its rapid antidepressant efficacy demonstrated in controlled trials, and a relatively favorable safety profile,” Maurizio Fava, MD, psychiatrist-in-chief, Massachusetts General Hospital, Boston, added in the release. 
 

‘Milestone’ in depression treatment?

Dr. Fava noted that nearly two-thirds of patients treated with currently available antidepressants fail to respond adequately, and those who do may not achieve clinically meaningful responses for up to 6-8 weeks.

“Given the debilitating nature of depression, the efficacy of Auvelity observed at 1 week and sustained thereafter may have a significant impact on the current treatment paradigm for this condition,” he said.

The company noted the drug was studied in a comprehensive clinical program that included more than 1,100 patients with MDD.

The efficacy of the drug was demonstrated in the GEMINI placebo-controlled study – with confirmatory evidence provided by the ASCEND study, which  compared it with bupropion sustained-release tablets.

Axsome said it expects to launch the new oral medication in the fourth quarter of this year. It is not approved for use in children.

The full prescribing information and medication guide are available online.

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

Watching TV may increase your risk of dementia, while using a computer may lower it, new research suggests.

The relationship to dementia with these activities remained strong no matter how much physical activity a person did, the authors wrote in Proceedings of the National Academy of Sciences.

Both watching TV and using a computer have been linked to increased risk of chronic disease and mortality, while exercise and physical activity (PA) have shown benefit in reducing cognitive decline, structural brain atrophy, and dementia risk in older adults, the authors wrote.

The authors said they wanted to try to understand the effects of watching TV and using computers on dementia risk, because people in the United States and Europe have been engaging in both of these activities more often.

They concluded that it’s not the sitting part of sedentary behavior (SB) that potentially has the effect on dementia but what people are doing while sitting.

Some of the results were surprising, lead author David Raichlen, PhD, professor of Human and Evolutionary Biology at University of Southern California, Los Angeles, said in an interview.

Previous literature on sedentary behaviors have documented their negative effects on a wide range of health outcomes, rather than finding positive associations, he explained.
 

More than 140,000 included in study

The researchers conducted their prospective cohort study using data from the United Kingdom Biobank. After excluding people younger than 60, those with prevalent dementia at the start of follow-up, and those without complete data, 146,651 participants were included.

The participants were followed from their baseline visit until they received a dementia diagnosis, died, were lost to follow-up, or were last admitted to the hospital.

TV-watching time was linked with an increased risk of incident dementia (HR [95% confidence interval] = 1.31 [1.23-1.40]), and computer use was linked with a reduced risk of incident dementia HR [95% CI] = 0.80 [0.76-0.85]).

TV’s link with higher dementia risk increased in those who had the highest use, compared with those who had the lowest use (HR [95% CI] = 1.28 [1.18-1.39].

Similarly, the link with risk reduction for dementia with computer use increased with more use.

Both medium and high computer time were associated with reduced risk of incident dementia (HR [95% CI] = 0.70 [0.64-0.76] and HR [95% CI] = 0.76 [0.70-0.83] respectively).

Dr. Raichlen pointed out that the high use of TV in this study was 4 or more hours a day and computer use – which included leisure use, not work use – had benefits on dementia risk after just half an hour.

These results remained significant after researchers adjusted for demographic, health, and lifestyle variables, including time spent on physical activity, sleeping, obesity, alcohol consumption, smoking status, diet scores, education level, body mass index, and employment type.
 

Physical is still better than sedentary activity

One potential reason for the different effects on dementia risk in the two activities studied, the authors write, is that sitting down to watch TV is associated with “uniquely low levels of muscle activity and energy expenditure, compared with sitting to use a computer.”

Andrew Budson, MD, chief of Cognitive & Behavioral Neurology and Associate Chief of Staff for Education for the VA Boston Healthcare System, Mass., who was not part of the study, said he thinks a more likely explanation for the study findings lies in the active versus passive tasks required in the two kinds of viewing that the authors reference.

“When we’re doing cognitive activity involving using the computer, we’re using large parts of our cortex to carry out that activity, whereas when we’re watching TV, there are probably relatively small amounts of our brain that are actually active,” Dr. Budson, author of Seven Steps to Managing Your Memory, explained in an interview.

“This is one of the first times I’ve been convinced that even when the computer activity isn’t completely new and novel, it may be beneficial,” Dr. Budson said.

It would be much better to do physical activity, but if the choice is sedentary activity, active cognitive activities, such as computer use, are better than TV watching, he continued.

The results of the current study are consistent with previous work showing that the type of sedentary behavior matters, according to the authors.

“Several studies have shown that TV time is associated with mortality and poor cardiometabolic biomarkers, whereas computer time is not,” they wrote.

A limitation of the study is that sedentary behaviors were self-reported via questionnaires, and there may be errors in recall.

“The use of objective methods for measuring both SB and PA are needed in future studies,” they write.

The authors receive support from the National Institutes of Health, the State of Arizona, the Arizona Department of Health Services, and the McKnight Brain Research Foundation. Neither the authors nor Dr. Budson declared relevant financial relationships.

Watching TV may increase your risk of dementia, while using a computer may lower it, new research suggests.

The relationship to dementia with these activities remained strong no matter how much physical activity a person did, the authors wrote in Proceedings of the National Academy of Sciences.

Both watching TV and using a computer have been linked to increased risk of chronic disease and mortality, while exercise and physical activity (PA) have shown benefit in reducing cognitive decline, structural brain atrophy, and dementia risk in older adults, the authors wrote.

The authors said they wanted to try to understand the effects of watching TV and using computers on dementia risk, because people in the United States and Europe have been engaging in both of these activities more often.

They concluded that it’s not the sitting part of sedentary behavior (SB) that potentially has the effect on dementia but what people are doing while sitting.

Some of the results were surprising, lead author David Raichlen, PhD, professor of Human and Evolutionary Biology at University of Southern California, Los Angeles, said in an interview.

Previous literature on sedentary behaviors have documented their negative effects on a wide range of health outcomes, rather than finding positive associations, he explained.
 

More than 140,000 included in study

The researchers conducted their prospective cohort study using data from the United Kingdom Biobank. After excluding people younger than 60, those with prevalent dementia at the start of follow-up, and those without complete data, 146,651 participants were included.

The participants were followed from their baseline visit until they received a dementia diagnosis, died, were lost to follow-up, or were last admitted to the hospital.

TV-watching time was linked with an increased risk of incident dementia (HR [95% confidence interval] = 1.31 [1.23-1.40]), and computer use was linked with a reduced risk of incident dementia HR [95% CI] = 0.80 [0.76-0.85]).

TV’s link with higher dementia risk increased in those who had the highest use, compared with those who had the lowest use (HR [95% CI] = 1.28 [1.18-1.39].

Similarly, the link with risk reduction for dementia with computer use increased with more use.

Both medium and high computer time were associated with reduced risk of incident dementia (HR [95% CI] = 0.70 [0.64-0.76] and HR [95% CI] = 0.76 [0.70-0.83] respectively).

Dr. Raichlen pointed out that the high use of TV in this study was 4 or more hours a day and computer use – which included leisure use, not work use – had benefits on dementia risk after just half an hour.

These results remained significant after researchers adjusted for demographic, health, and lifestyle variables, including time spent on physical activity, sleeping, obesity, alcohol consumption, smoking status, diet scores, education level, body mass index, and employment type.
 

Physical is still better than sedentary activity

One potential reason for the different effects on dementia risk in the two activities studied, the authors write, is that sitting down to watch TV is associated with “uniquely low levels of muscle activity and energy expenditure, compared with sitting to use a computer.”

Andrew Budson, MD, chief of Cognitive & Behavioral Neurology and Associate Chief of Staff for Education for the VA Boston Healthcare System, Mass., who was not part of the study, said he thinks a more likely explanation for the study findings lies in the active versus passive tasks required in the two kinds of viewing that the authors reference.

“When we’re doing cognitive activity involving using the computer, we’re using large parts of our cortex to carry out that activity, whereas when we’re watching TV, there are probably relatively small amounts of our brain that are actually active,” Dr. Budson, author of Seven Steps to Managing Your Memory, explained in an interview.

“This is one of the first times I’ve been convinced that even when the computer activity isn’t completely new and novel, it may be beneficial,” Dr. Budson said.

It would be much better to do physical activity, but if the choice is sedentary activity, active cognitive activities, such as computer use, are better than TV watching, he continued.

The results of the current study are consistent with previous work showing that the type of sedentary behavior matters, according to the authors.

“Several studies have shown that TV time is associated with mortality and poor cardiometabolic biomarkers, whereas computer time is not,” they wrote.

A limitation of the study is that sedentary behaviors were self-reported via questionnaires, and there may be errors in recall.

“The use of objective methods for measuring both SB and PA are needed in future studies,” they write.

The authors receive support from the National Institutes of Health, the State of Arizona, the Arizona Department of Health Services, and the McKnight Brain Research Foundation. Neither the authors nor Dr. Budson declared relevant financial relationships.

Watching TV may increase your risk of dementia, while using a computer may lower it, new research suggests.

The relationship to dementia with these activities remained strong no matter how much physical activity a person did, the authors wrote in Proceedings of the National Academy of Sciences.

Both watching TV and using a computer have been linked to increased risk of chronic disease and mortality, while exercise and physical activity (PA) have shown benefit in reducing cognitive decline, structural brain atrophy, and dementia risk in older adults, the authors wrote.

The authors said they wanted to try to understand the effects of watching TV and using computers on dementia risk, because people in the United States and Europe have been engaging in both of these activities more often.

They concluded that it’s not the sitting part of sedentary behavior (SB) that potentially has the effect on dementia but what people are doing while sitting.

Some of the results were surprising, lead author David Raichlen, PhD, professor of Human and Evolutionary Biology at University of Southern California, Los Angeles, said in an interview.

Previous literature on sedentary behaviors have documented their negative effects on a wide range of health outcomes, rather than finding positive associations, he explained.
 

More than 140,000 included in study

The researchers conducted their prospective cohort study using data from the United Kingdom Biobank. After excluding people younger than 60, those with prevalent dementia at the start of follow-up, and those without complete data, 146,651 participants were included.

The participants were followed from their baseline visit until they received a dementia diagnosis, died, were lost to follow-up, or were last admitted to the hospital.

TV-watching time was linked with an increased risk of incident dementia (HR [95% confidence interval] = 1.31 [1.23-1.40]), and computer use was linked with a reduced risk of incident dementia HR [95% CI] = 0.80 [0.76-0.85]).

TV’s link with higher dementia risk increased in those who had the highest use, compared with those who had the lowest use (HR [95% CI] = 1.28 [1.18-1.39].

Similarly, the link with risk reduction for dementia with computer use increased with more use.

Both medium and high computer time were associated with reduced risk of incident dementia (HR [95% CI] = 0.70 [0.64-0.76] and HR [95% CI] = 0.76 [0.70-0.83] respectively).

Dr. Raichlen pointed out that the high use of TV in this study was 4 or more hours a day and computer use – which included leisure use, not work use – had benefits on dementia risk after just half an hour.

These results remained significant after researchers adjusted for demographic, health, and lifestyle variables, including time spent on physical activity, sleeping, obesity, alcohol consumption, smoking status, diet scores, education level, body mass index, and employment type.
 

Physical is still better than sedentary activity

One potential reason for the different effects on dementia risk in the two activities studied, the authors write, is that sitting down to watch TV is associated with “uniquely low levels of muscle activity and energy expenditure, compared with sitting to use a computer.”

Andrew Budson, MD, chief of Cognitive & Behavioral Neurology and Associate Chief of Staff for Education for the VA Boston Healthcare System, Mass., who was not part of the study, said he thinks a more likely explanation for the study findings lies in the active versus passive tasks required in the two kinds of viewing that the authors reference.

“When we’re doing cognitive activity involving using the computer, we’re using large parts of our cortex to carry out that activity, whereas when we’re watching TV, there are probably relatively small amounts of our brain that are actually active,” Dr. Budson, author of Seven Steps to Managing Your Memory, explained in an interview.

“This is one of the first times I’ve been convinced that even when the computer activity isn’t completely new and novel, it may be beneficial,” Dr. Budson said.

It would be much better to do physical activity, but if the choice is sedentary activity, active cognitive activities, such as computer use, are better than TV watching, he continued.

The results of the current study are consistent with previous work showing that the type of sedentary behavior matters, according to the authors.

“Several studies have shown that TV time is associated with mortality and poor cardiometabolic biomarkers, whereas computer time is not,” they wrote.

A limitation of the study is that sedentary behaviors were self-reported via questionnaires, and there may be errors in recall.

“The use of objective methods for measuring both SB and PA are needed in future studies,” they write.

The authors receive support from the National Institutes of Health, the State of Arizona, the Arizona Department of Health Services, and the McKnight Brain Research Foundation. Neither the authors nor Dr. Budson declared relevant financial relationships.

Older adults with atrial cardiopathy may have up to 35% higher risk for dementia even before symptoms develop, new research suggests.

“We cautiously suggest that an understanding of this relationship might provide a basis for new interventional strategies to help thwart the development of dementia,” the authors write.

The research, led by Michelle C. Johansen, MD, department of neurology, Johns Hopkins University, Baltimore, was published online in the Journal of the American Heart Association.

Atrial cardiopathy, characterized by abnormal size and function of the left atrium, has been associated with an increased risk of stroke and atrial fibrillation (AFib), and because both stroke and AFib are associated with an increased dementia risk, the authors write, it was important to investigate whether atrial cardiopathy is linked to dementia.

If that’s the case, they reasoned, the next question was whether that link is independent of AFib and stroke, and their new research suggests that it is.

For this analysis, the researchers conducted a prospective cohort analysis of participants in the Atherosclerosis Risk in Communities (ARIC) study who were attending visit 5 (2011-2013). During their fifth, sixth, and seventh clinical visits, the ARIC participants were evaluated for cognitive decline indicating dementia.

They studied a diverse population of 5,078 older adults living in four U.S. communities: Washington County, Md.; Forsyth County, N.C.; the northwestern suburbs of Minneapolis; and Jackson, Miss.

Just more than a third (34%) had atrial cardiopathy (average age, 75 years; 59% female; 21% Black) and 763 participants developed dementia.

Investigators found that atrial cardiopathy was significantly associated with dementia (adjusted hazard ratio, 1.35 [95% confidence interval, 1.16-1.58]).

They considered ARIC participants to have atrial cardiopathy if they had at least one of the following: P-wave terminal force greater than 5,000 mV·ms in ECG lead V1; NTproBNP greater than 250 pg/mL; or left atrial volume index greater than or equal to 34 mL/m² by transthoracic echocardiography.

The risk of dementia was even stronger when the researchers defined cardiopathy by at least two biomarkers instead of one (aHR, 1.54 [95% CI, 1.25-1.89]).

The authors point out, however, that this study is observational and cannot make a causal link.

Clifford Kavinsky, MD, PhD, head of the Comprehensive Stroke and Cardiology Clinic at Rush University Medical Center, Chicago, told this news organization that much more research would need to be done to show convincingly that atrial cardiopathy causes dementia.

He called the findings “provocative in trying to understand in a general sense how cardiac dysfunction leads to dementia.”

“We all know heart failure leads to dementia, but now we see there may be a relationship with just dysfunction of the upper chambers,” he said.
 

Unresolved questions

But it still not clear is what is mediating the connection, who is at risk, and how the increased risk can be prevented, he said.

He said he also wonders whether the results eliminated all patients with atrial fibrillation, a point the authors acknowledge as well.

Researchers list in the limitations that “asymptomatic AFib or silent cerebral infarction may have been missed by the ARIC adjudication process.”

There is broad understanding that preventing heart disease is important for a wide array of reasons, Dr. Kavinsky noted, and one of the reasons is cognitive deterioration.

He said this study helps identify that “even dysfunction of the upper chambers of the heart contributes to the evolution of dementia.”

The study amplifies the need to shift to prevention with heart disease in general, and more specifically in atrial dysfunction, Dr. Kavinsky said, noting a lot of atrial dysfunction is mediated by underlying hypertension and coronary disease.

Researchers evaluated cognitive decline in all participants with a comprehensive array of neuropsychological tests and interviewed some of the patients.

“A diagnosis of dementia was generated based on testing results by a computer diagnostic algorithm and then decided upon by an expert based on the Diagnostic and Statistical Manual of Mental Disorders and the criteria outlined by the National Institutes of Health and the National Institutes of Health,” they write.

Dr. Johansen reported funding from National Institute of Neurological Disorders and Stroke. Study coauthor disclosures are listed in the paper. Dr. Kavinsky has disclosed no relevant financial relationships.

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

Older adults with atrial cardiopathy may have up to 35% higher risk for dementia even before symptoms develop, new research suggests.

“We cautiously suggest that an understanding of this relationship might provide a basis for new interventional strategies to help thwart the development of dementia,” the authors write.

The research, led by Michelle C. Johansen, MD, department of neurology, Johns Hopkins University, Baltimore, was published online in the Journal of the American Heart Association.

Atrial cardiopathy, characterized by abnormal size and function of the left atrium, has been associated with an increased risk of stroke and atrial fibrillation (AFib), and because both stroke and AFib are associated with an increased dementia risk, the authors write, it was important to investigate whether atrial cardiopathy is linked to dementia.

If that’s the case, they reasoned, the next question was whether that link is independent of AFib and stroke, and their new research suggests that it is.

For this analysis, the researchers conducted a prospective cohort analysis of participants in the Atherosclerosis Risk in Communities (ARIC) study who were attending visit 5 (2011-2013). During their fifth, sixth, and seventh clinical visits, the ARIC participants were evaluated for cognitive decline indicating dementia.

They studied a diverse population of 5,078 older adults living in four U.S. communities: Washington County, Md.; Forsyth County, N.C.; the northwestern suburbs of Minneapolis; and Jackson, Miss.

Just more than a third (34%) had atrial cardiopathy (average age, 75 years; 59% female; 21% Black) and 763 participants developed dementia.

Investigators found that atrial cardiopathy was significantly associated with dementia (adjusted hazard ratio, 1.35 [95% confidence interval, 1.16-1.58]).

They considered ARIC participants to have atrial cardiopathy if they had at least one of the following: P-wave terminal force greater than 5,000 mV·ms in ECG lead V1; NTproBNP greater than 250 pg/mL; or left atrial volume index greater than or equal to 34 mL/m² by transthoracic echocardiography.

The risk of dementia was even stronger when the researchers defined cardiopathy by at least two biomarkers instead of one (aHR, 1.54 [95% CI, 1.25-1.89]).

The authors point out, however, that this study is observational and cannot make a causal link.

Clifford Kavinsky, MD, PhD, head of the Comprehensive Stroke and Cardiology Clinic at Rush University Medical Center, Chicago, told this news organization that much more research would need to be done to show convincingly that atrial cardiopathy causes dementia.

He called the findings “provocative in trying to understand in a general sense how cardiac dysfunction leads to dementia.”

“We all know heart failure leads to dementia, but now we see there may be a relationship with just dysfunction of the upper chambers,” he said.
 

Unresolved questions

But it still not clear is what is mediating the connection, who is at risk, and how the increased risk can be prevented, he said.

He said he also wonders whether the results eliminated all patients with atrial fibrillation, a point the authors acknowledge as well.

Researchers list in the limitations that “asymptomatic AFib or silent cerebral infarction may have been missed by the ARIC adjudication process.”

There is broad understanding that preventing heart disease is important for a wide array of reasons, Dr. Kavinsky noted, and one of the reasons is cognitive deterioration.

He said this study helps identify that “even dysfunction of the upper chambers of the heart contributes to the evolution of dementia.”

The study amplifies the need to shift to prevention with heart disease in general, and more specifically in atrial dysfunction, Dr. Kavinsky said, noting a lot of atrial dysfunction is mediated by underlying hypertension and coronary disease.

Researchers evaluated cognitive decline in all participants with a comprehensive array of neuropsychological tests and interviewed some of the patients.

“A diagnosis of dementia was generated based on testing results by a computer diagnostic algorithm and then decided upon by an expert based on the Diagnostic and Statistical Manual of Mental Disorders and the criteria outlined by the National Institutes of Health and the National Institutes of Health,” they write.

Dr. Johansen reported funding from National Institute of Neurological Disorders and Stroke. Study coauthor disclosures are listed in the paper. Dr. Kavinsky has disclosed no relevant financial relationships.

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

Older adults with atrial cardiopathy may have up to 35% higher risk for dementia even before symptoms develop, new research suggests.

“We cautiously suggest that an understanding of this relationship might provide a basis for new interventional strategies to help thwart the development of dementia,” the authors write.

The research, led by Michelle C. Johansen, MD, department of neurology, Johns Hopkins University, Baltimore, was published online in the Journal of the American Heart Association.

Atrial cardiopathy, characterized by abnormal size and function of the left atrium, has been associated with an increased risk of stroke and atrial fibrillation (AFib), and because both stroke and AFib are associated with an increased dementia risk, the authors write, it was important to investigate whether atrial cardiopathy is linked to dementia.

If that’s the case, they reasoned, the next question was whether that link is independent of AFib and stroke, and their new research suggests that it is.

For this analysis, the researchers conducted a prospective cohort analysis of participants in the Atherosclerosis Risk in Communities (ARIC) study who were attending visit 5 (2011-2013). During their fifth, sixth, and seventh clinical visits, the ARIC participants were evaluated for cognitive decline indicating dementia.

They studied a diverse population of 5,078 older adults living in four U.S. communities: Washington County, Md.; Forsyth County, N.C.; the northwestern suburbs of Minneapolis; and Jackson, Miss.

Just more than a third (34%) had atrial cardiopathy (average age, 75 years; 59% female; 21% Black) and 763 participants developed dementia.

Investigators found that atrial cardiopathy was significantly associated with dementia (adjusted hazard ratio, 1.35 [95% confidence interval, 1.16-1.58]).

They considered ARIC participants to have atrial cardiopathy if they had at least one of the following: P-wave terminal force greater than 5,000 mV·ms in ECG lead V1; NTproBNP greater than 250 pg/mL; or left atrial volume index greater than or equal to 34 mL/m² by transthoracic echocardiography.

The risk of dementia was even stronger when the researchers defined cardiopathy by at least two biomarkers instead of one (aHR, 1.54 [95% CI, 1.25-1.89]).

The authors point out, however, that this study is observational and cannot make a causal link.

Clifford Kavinsky, MD, PhD, head of the Comprehensive Stroke and Cardiology Clinic at Rush University Medical Center, Chicago, told this news organization that much more research would need to be done to show convincingly that atrial cardiopathy causes dementia.

He called the findings “provocative in trying to understand in a general sense how cardiac dysfunction leads to dementia.”

“We all know heart failure leads to dementia, but now we see there may be a relationship with just dysfunction of the upper chambers,” he said.
 

Unresolved questions

But it still not clear is what is mediating the connection, who is at risk, and how the increased risk can be prevented, he said.

He said he also wonders whether the results eliminated all patients with atrial fibrillation, a point the authors acknowledge as well.

Researchers list in the limitations that “asymptomatic AFib or silent cerebral infarction may have been missed by the ARIC adjudication process.”

There is broad understanding that preventing heart disease is important for a wide array of reasons, Dr. Kavinsky noted, and one of the reasons is cognitive deterioration.

He said this study helps identify that “even dysfunction of the upper chambers of the heart contributes to the evolution of dementia.”

The study amplifies the need to shift to prevention with heart disease in general, and more specifically in atrial dysfunction, Dr. Kavinsky said, noting a lot of atrial dysfunction is mediated by underlying hypertension and coronary disease.

Researchers evaluated cognitive decline in all participants with a comprehensive array of neuropsychological tests and interviewed some of the patients.

“A diagnosis of dementia was generated based on testing results by a computer diagnostic algorithm and then decided upon by an expert based on the Diagnostic and Statistical Manual of Mental Disorders and the criteria outlined by the National Institutes of Health and the National Institutes of Health,” they write.

Dr. Johansen reported funding from National Institute of Neurological Disorders and Stroke. Study coauthor disclosures are listed in the paper. Dr. Kavinsky has disclosed no relevant financial relationships.

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