Stroke

CINCINNATI – Sickle cell disease is well known for its associated anemia, but patients experience a range of other complications as well. These include vision and kidney problems, delayed growth, susceptibility to infection, and pain.

Another issue, not always as well recognized, is a considerably heightened risk for childhood stroke. “Children with sickle cell disease have 100 times the risk of stroke as other children without sickle cell disease, and there’s also an elevated risk of five times the general population in adults with sickle cell disease,” said Lori Jordan, MD, PhD, in an interview.

At the 2022 annual meeting of the Child Neurology Society, Dr. Jordan spoke about stroke as a complication of sickle cell disease, and the role that neurologists can play in preventing primary or secondary strokes. “At least in children, studies have shown that if we screen and identify patients who are at highest risk of stroke, there are primary prevention therapies – usually implemented by hematologists, but that neurologists often are involved with – both monitoring for cognitive effects of silent cerebral infarct and also with treating patients who unfortunately still have an acute stroke,” said Dr. Jordan, who is an associate professor of pediatrics, neurology, and radiology at Vanderbilt University Medical Center, Nashville, Tenn. She also is director of the pediatric stroke program at Vanderbilt.
 

Time is of the essence

“In general, stroke in children is rare, but it’s more common in sickle cell disease, so it’s really important for providers to know that stroke risk is higher in those patients, particularly in those children, and then identify it and treat it earlier. Time is of the essence, and if we can give them the same therapeutics that we give the general stroke population, then time really becomes a factor, so it’s important that people know that it’s an issue for this population,” said Eboni Lance, MD, PhD, who coordinated the session where Dr. Jordan spoke.

Sickle cell disease is caused by a double mutation in the gene encoding the hemoglobin gene, producing the altered sickle hemoglobin (hemoglobin S). The change causes the hemoglobin proteins to tend to stick to one another, which can lead red blood cells to adopt a sickle-like shape. The sickle-shaped blood cells in turn have a tendency to aggregate and can block blood flow or lead to endothelial injury. Symptoms of stroke in children can include hemiparesis, aphasia, and seizure, but they can also be silent.

If no preventive is employed, one in nine with sickle cell disease will experience a stroke by the age of 19. Cerebrovascular symptoms are the most frequent debilitating complication of the condition. Nearly 40% of patients with sickle cell disease will have a silent cerebral infarct by age 18, as will 50% by age 30. Silent strokes have been associated with worse educational attainment and a greater need for educational special services.

Factors contributing to stroke in children with sickle cell disease include anemia and a low blood oxygen count, reduced oxygen affinity of hemoglobin variant, and cerebral vasculopathy. An estimated 10%-15% of young adults with sickle cell disease have severe intracranial stenosis.
 

Primary and secondary stroke prevention strategies

The dire consequences of stroke in this patient population underline the importance of primary stroke prevention, which requires the use of transcranial Doppler (TCD) ultrasound. It has been validated as a tool to screen for initial stroke risk in children with no history of stroke. High velocity measured on TCD indicates a narrowed blood vessel or elevated blood that is compensating for anemia. It adds up to a “struggling brain,” said Dr. Jordan, during her talk. If the TCD ultrasound velocity is greater than 200 cm/sec (or 170 cm/sec, depending on nonimaging versus imaging TCD), the TWiTCH trial showed that seven monthly transfusions is the number needed to treat to prevent one stroke. After 1 year, patients can be switched from transfusions to hydroxyurea if the patient has no significant intracranial stenosis. Hydroxyurea boosts both fetal and total hemoglobin, and also counters inflammation.

Following an acute stroke or transient ischemic attack, patients should receive a transfusion within 2 hours of presenting in the health care setting. American Society of Hematology guidelines recommend exchange transfusion rather than a simple transfusion. A simple transfusion can be initiated if an exchange transfusion is not available within 2 hours and hemoglobin values are less than 8.5 g/dL, to be followed by performance of exchange transfusion when available.

For chronic secondary stroke prevention, transfusions should be performed approximately monthly with the goal of maintaining hemoglobin above 9 g/dL at all times, as well as suppressing hemoglobin S levels to 30% or less of total hemoglobin.

Sudden, severe headache is a potential harbinger of complications like aneurysm, which occurs 10-fold more often among patients with sickle cell disease than the general population. It could also indicate increased intracranial pressure or cerebral venous sinus thrombosis.

Treatment of acute headache in sickle cell disease should avoid use of triptans, since vasoconstriction can counter the increased cerebral blood flow that compensates for anemia. Gabapentin and amitriptyline are good treatment choices.

New-onset seizures are a potential sign of stroke or posterior reversible leukoencephalopathy (PRES) in patients with sickle cell disease. Urgent MRI should be considered for all new-onset seizures. If blood pressure is high, PRES may be present. Seizures may also be an indicator of a previous brain injury.

Dr. Jordan has no relevant financial disclosures. Dr. Lance has served on an advisory board for Novartis.
 

CINCINNATI – Sickle cell disease is well known for its associated anemia, but patients experience a range of other complications as well. These include vision and kidney problems, delayed growth, susceptibility to infection, and pain.

Another issue, not always as well recognized, is a considerably heightened risk for childhood stroke. “Children with sickle cell disease have 100 times the risk of stroke as other children without sickle cell disease, and there’s also an elevated risk of five times the general population in adults with sickle cell disease,” said Lori Jordan, MD, PhD, in an interview.

At the 2022 annual meeting of the Child Neurology Society, Dr. Jordan spoke about stroke as a complication of sickle cell disease, and the role that neurologists can play in preventing primary or secondary strokes. “At least in children, studies have shown that if we screen and identify patients who are at highest risk of stroke, there are primary prevention therapies – usually implemented by hematologists, but that neurologists often are involved with – both monitoring for cognitive effects of silent cerebral infarct and also with treating patients who unfortunately still have an acute stroke,” said Dr. Jordan, who is an associate professor of pediatrics, neurology, and radiology at Vanderbilt University Medical Center, Nashville, Tenn. She also is director of the pediatric stroke program at Vanderbilt.
 

Time is of the essence

“In general, stroke in children is rare, but it’s more common in sickle cell disease, so it’s really important for providers to know that stroke risk is higher in those patients, particularly in those children, and then identify it and treat it earlier. Time is of the essence, and if we can give them the same therapeutics that we give the general stroke population, then time really becomes a factor, so it’s important that people know that it’s an issue for this population,” said Eboni Lance, MD, PhD, who coordinated the session where Dr. Jordan spoke.

Sickle cell disease is caused by a double mutation in the gene encoding the hemoglobin gene, producing the altered sickle hemoglobin (hemoglobin S). The change causes the hemoglobin proteins to tend to stick to one another, which can lead red blood cells to adopt a sickle-like shape. The sickle-shaped blood cells in turn have a tendency to aggregate and can block blood flow or lead to endothelial injury. Symptoms of stroke in children can include hemiparesis, aphasia, and seizure, but they can also be silent.

If no preventive is employed, one in nine with sickle cell disease will experience a stroke by the age of 19. Cerebrovascular symptoms are the most frequent debilitating complication of the condition. Nearly 40% of patients with sickle cell disease will have a silent cerebral infarct by age 18, as will 50% by age 30. Silent strokes have been associated with worse educational attainment and a greater need for educational special services.

Factors contributing to stroke in children with sickle cell disease include anemia and a low blood oxygen count, reduced oxygen affinity of hemoglobin variant, and cerebral vasculopathy. An estimated 10%-15% of young adults with sickle cell disease have severe intracranial stenosis.
 

Primary and secondary stroke prevention strategies

The dire consequences of stroke in this patient population underline the importance of primary stroke prevention, which requires the use of transcranial Doppler (TCD) ultrasound. It has been validated as a tool to screen for initial stroke risk in children with no history of stroke. High velocity measured on TCD indicates a narrowed blood vessel or elevated blood that is compensating for anemia. It adds up to a “struggling brain,” said Dr. Jordan, during her talk. If the TCD ultrasound velocity is greater than 200 cm/sec (or 170 cm/sec, depending on nonimaging versus imaging TCD), the TWiTCH trial showed that seven monthly transfusions is the number needed to treat to prevent one stroke. After 1 year, patients can be switched from transfusions to hydroxyurea if the patient has no significant intracranial stenosis. Hydroxyurea boosts both fetal and total hemoglobin, and also counters inflammation.

Following an acute stroke or transient ischemic attack, patients should receive a transfusion within 2 hours of presenting in the health care setting. American Society of Hematology guidelines recommend exchange transfusion rather than a simple transfusion. A simple transfusion can be initiated if an exchange transfusion is not available within 2 hours and hemoglobin values are less than 8.5 g/dL, to be followed by performance of exchange transfusion when available.

For chronic secondary stroke prevention, transfusions should be performed approximately monthly with the goal of maintaining hemoglobin above 9 g/dL at all times, as well as suppressing hemoglobin S levels to 30% or less of total hemoglobin.

Sudden, severe headache is a potential harbinger of complications like aneurysm, which occurs 10-fold more often among patients with sickle cell disease than the general population. It could also indicate increased intracranial pressure or cerebral venous sinus thrombosis.

Treatment of acute headache in sickle cell disease should avoid use of triptans, since vasoconstriction can counter the increased cerebral blood flow that compensates for anemia. Gabapentin and amitriptyline are good treatment choices.

New-onset seizures are a potential sign of stroke or posterior reversible leukoencephalopathy (PRES) in patients with sickle cell disease. Urgent MRI should be considered for all new-onset seizures. If blood pressure is high, PRES may be present. Seizures may also be an indicator of a previous brain injury.

Dr. Jordan has no relevant financial disclosures. Dr. Lance has served on an advisory board for Novartis.
 

CINCINNATI – Sickle cell disease is well known for its associated anemia, but patients experience a range of other complications as well. These include vision and kidney problems, delayed growth, susceptibility to infection, and pain.

Another issue, not always as well recognized, is a considerably heightened risk for childhood stroke. “Children with sickle cell disease have 100 times the risk of stroke as other children without sickle cell disease, and there’s also an elevated risk of five times the general population in adults with sickle cell disease,” said Lori Jordan, MD, PhD, in an interview.

At the 2022 annual meeting of the Child Neurology Society, Dr. Jordan spoke about stroke as a complication of sickle cell disease, and the role that neurologists can play in preventing primary or secondary strokes. “At least in children, studies have shown that if we screen and identify patients who are at highest risk of stroke, there are primary prevention therapies – usually implemented by hematologists, but that neurologists often are involved with – both monitoring for cognitive effects of silent cerebral infarct and also with treating patients who unfortunately still have an acute stroke,” said Dr. Jordan, who is an associate professor of pediatrics, neurology, and radiology at Vanderbilt University Medical Center, Nashville, Tenn. She also is director of the pediatric stroke program at Vanderbilt.
 

Time is of the essence

“In general, stroke in children is rare, but it’s more common in sickle cell disease, so it’s really important for providers to know that stroke risk is higher in those patients, particularly in those children, and then identify it and treat it earlier. Time is of the essence, and if we can give them the same therapeutics that we give the general stroke population, then time really becomes a factor, so it’s important that people know that it’s an issue for this population,” said Eboni Lance, MD, PhD, who coordinated the session where Dr. Jordan spoke.

Sickle cell disease is caused by a double mutation in the gene encoding the hemoglobin gene, producing the altered sickle hemoglobin (hemoglobin S). The change causes the hemoglobin proteins to tend to stick to one another, which can lead red blood cells to adopt a sickle-like shape. The sickle-shaped blood cells in turn have a tendency to aggregate and can block blood flow or lead to endothelial injury. Symptoms of stroke in children can include hemiparesis, aphasia, and seizure, but they can also be silent.

If no preventive is employed, one in nine with sickle cell disease will experience a stroke by the age of 19. Cerebrovascular symptoms are the most frequent debilitating complication of the condition. Nearly 40% of patients with sickle cell disease will have a silent cerebral infarct by age 18, as will 50% by age 30. Silent strokes have been associated with worse educational attainment and a greater need for educational special services.

Factors contributing to stroke in children with sickle cell disease include anemia and a low blood oxygen count, reduced oxygen affinity of hemoglobin variant, and cerebral vasculopathy. An estimated 10%-15% of young adults with sickle cell disease have severe intracranial stenosis.
 

Primary and secondary stroke prevention strategies

The dire consequences of stroke in this patient population underline the importance of primary stroke prevention, which requires the use of transcranial Doppler (TCD) ultrasound. It has been validated as a tool to screen for initial stroke risk in children with no history of stroke. High velocity measured on TCD indicates a narrowed blood vessel or elevated blood that is compensating for anemia. It adds up to a “struggling brain,” said Dr. Jordan, during her talk. If the TCD ultrasound velocity is greater than 200 cm/sec (or 170 cm/sec, depending on nonimaging versus imaging TCD), the TWiTCH trial showed that seven monthly transfusions is the number needed to treat to prevent one stroke. After 1 year, patients can be switched from transfusions to hydroxyurea if the patient has no significant intracranial stenosis. Hydroxyurea boosts both fetal and total hemoglobin, and also counters inflammation.

Following an acute stroke or transient ischemic attack, patients should receive a transfusion within 2 hours of presenting in the health care setting. American Society of Hematology guidelines recommend exchange transfusion rather than a simple transfusion. A simple transfusion can be initiated if an exchange transfusion is not available within 2 hours and hemoglobin values are less than 8.5 g/dL, to be followed by performance of exchange transfusion when available.

For chronic secondary stroke prevention, transfusions should be performed approximately monthly with the goal of maintaining hemoglobin above 9 g/dL at all times, as well as suppressing hemoglobin S levels to 30% or less of total hemoglobin.

Sudden, severe headache is a potential harbinger of complications like aneurysm, which occurs 10-fold more often among patients with sickle cell disease than the general population. It could also indicate increased intracranial pressure or cerebral venous sinus thrombosis.

Treatment of acute headache in sickle cell disease should avoid use of triptans, since vasoconstriction can counter the increased cerebral blood flow that compensates for anemia. Gabapentin and amitriptyline are good treatment choices.

New-onset seizures are a potential sign of stroke or posterior reversible leukoencephalopathy (PRES) in patients with sickle cell disease. Urgent MRI should be considered for all new-onset seizures. If blood pressure is high, PRES may be present. Seizures may also be an indicator of a previous brain injury.

Dr. Jordan has no relevant financial disclosures. Dr. Lance has served on an advisory board for Novartis.
 

In the management of acute and chronic stroke, smartphone apps enhance communication between first responders and waiting hospital staff and reduce door-to-needle time, according to a literature review.

“In clinical practice, guideline-driven patient care is very important in improving diagnosis and outcomes, and apps provide a very practical and easy way to check available guidelines,” senior author Fabio Pilato, MD, a neurologist at Università Campus Bio-Medico, Rome, told this news organization.

The review was published  in the Journal of Stroke.
 

Reviewing the literature

“My colleagues and I wanted to discover whether smartphone apps, besides just facilitating communication between doctors and their patients, could improve patient care,” said Dr. Pilato. “We wanted to see if there were any apps that could guide clinical decisions according to guidelines and whether there were some being used in acute stroke management,” he added.

The investigators reviewed 43 studies of stroke-related mobile phone apps that were designed for the clinical management of stroke between June 1, 2007, when the first iPhone was introduced, and Jan. 31, 2022.

The apps were classified into the following three groups, according to their purpose: primary prevention apps, acute stroke management apps, and postacute stroke apps.
 

Prevention and management

The investigators found one primary prevention app, the Stroke Riskometer, that was based on an algorithm derived from the Framingham Stroke Risk Score and was designed to educate patients about diet, physical activity, and the warning signs of stroke. However, their review failed to show that the app was beneficial, compared with standard cardiovascular risk reduction.

Apps appeared to aid acute stroke management, according to the researchers. Prehospital apps, such as iLAMA, Smartphone-Assisted Pre-Hospital Medical Information System, FAST-ED, Egyptian Stroke Network, Act Fast, and the Mayo Clinic Acute Stroke Evaluation app were found to speed up stroke recognition, activate emergency medical services for speedier transport to the hospital, and facilitate communication with in-hospital stroke teams. All these prehospital apps reduced door-to-needle time.

The JOIN app also was shown to significantly reduce door-to-needle time, compared with no app support, in several studies. JOIN consists of a chat, a DICOM viewer, and an encrypted two-way video system for video calls between practitioners, as well as a milestones time stamp to record every step from home to hospital transportation to therapy onset. 

StopStroke, another app that focuses on instant communication among physicians and allows real-time sharing of clinical data of stroke patients, reduced door-to-image and door-to-needle time, compared with no app.

Act Fast, which uses a National Institutes of Health Stroke Scale (NIHSS) calculator, a thrombolysis checklist, and a toolbox to share images and notes among practitioners involved in the decision-making process, decreased door-to-needle time by 16 minutes, compared with no app.

In a study of medical residents, adherence to guidelines was higher in participants who used the Mayo Clinic Acute Stroke Evaluation app, compared with those who did not. Door-to-needle time also was reduced by 16 minutes in the app-assisted group, compared with controls.
 

Postacute stroke apps

The Rehabilitation Guardian app, consisting of a health reminder, consultation, health information, and patient diary, gives medical information and provides rehabilitation exercises. Patients can enter their clinical information, and the medical staff can access it and assist with the rehab process remotely.

As for apps for chronic management and secondary prevention, Dr. Pilato and colleagues found that the PRESTRO app, which combines motivational support for a healthy lifestyle and tells patients to take their medications and measure their blood pressure, successfully got patients to be more physically active, compared with those who did not use the app.

Another app for secondary prevention, the Korea University Health Monitoring System for Stroke (KUHMS2), reduced blood pressure and glucose levels in patients who used it, compared with those who did not.

Lose It, a weight loss app, is an electronic food journal that shows the values of the macronutrients of foods that the patient consumes, as well as a daily calorie count. The Engaging Everyday Activities app effectively reminds patients who have had transient ischemic attacks about daily activities that can reduce their risk for a recurrent attack.

Movies4Stroke features educational videos about first aid, rehabilitation, how to improve swallowing, and stroke risk factors.

AFib 2gether allows patients to enter their clinical data and calculates their annual stroke risk scores. The information is provided to a health care provider before the next visit to help the patient make an informed decision about anticoagulation therapy.

“We believe that the widespread use of smartphones and apps may improve patient care in every part of the world and in particular in those parts where updated guideline consultation is not readily available. However, in our study we found that apps to implement guidelines by a clinical decision support system are still lacking. Our hope is that these apps will increase in the future,” said Dr. Pilato.
 

No panacea

Commenting on this review for this article, Amy Guzik, MD, associate professor of neurology at Wake Forest University School of Medicine, Winston-Salem, N.C., said that all physicians are looking for opportunities to use technology, especially in stroke, to diagnose and treat patients in the best way they can.

“Figuring out ways to increase efficiency and get the word out to our patients is very important to us and is probably why there are so many apps out there,” said Dr. Guzik.

“There are some ways such apps could be particularly useful. One is in remote hospitals that might not have a neurologist. Helping with the diagnosis and determining what is a bad stroke that needs to go to a higher level of medical care, or whether it is something the local hospital could take care of, would be useful,” said Dr. Guzik.

“Also helping EMS figure out which hospital to go to, or once they are on their way, being able to talk to the neurologist or neurosurgeon or the emergency room doctor and make a plan before the patient gets here, so we can expedite care when the patient arrives, is where apps can be particularly useful,” she added.

There are limitations to what apps can do, however. In the case of stroke, patients may often have important barriers that do not allow them to use apps at all, she said.

“Regardless of how they are being taken care of, a lot of our stroke patients will have problems with technology. A stroke can make texting difficult. Patients may have language difficulties, weakness, or cognitive impairment. They are relying on caregivers. All of this makes it difficult for a tech solution to be the automatic solution, unless things are done in a thoughtful way to make sure that it is appropriate for stroke patients.

“Also, there are a lot of elderly patients who may not necessarily be the most tech savvy and do not have as much digital literacy as younger patients. Another limitation to consider is that some people may not even have easy access to technology. So we must make sure that this is all done with an equity focus,” said Dr. Guzik.

The study was funded by the Associazione Nazionale fra le Imprese Assicuratrici (ANIA). Dr. Pilato and Dr. Guzik reported no relevant financial relationships.

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

In the management of acute and chronic stroke, smartphone apps enhance communication between first responders and waiting hospital staff and reduce door-to-needle time, according to a literature review.

“In clinical practice, guideline-driven patient care is very important in improving diagnosis and outcomes, and apps provide a very practical and easy way to check available guidelines,” senior author Fabio Pilato, MD, a neurologist at Università Campus Bio-Medico, Rome, told this news organization.

The review was published  in the Journal of Stroke.
 

Reviewing the literature

“My colleagues and I wanted to discover whether smartphone apps, besides just facilitating communication between doctors and their patients, could improve patient care,” said Dr. Pilato. “We wanted to see if there were any apps that could guide clinical decisions according to guidelines and whether there were some being used in acute stroke management,” he added.

The investigators reviewed 43 studies of stroke-related mobile phone apps that were designed for the clinical management of stroke between June 1, 2007, when the first iPhone was introduced, and Jan. 31, 2022.

The apps were classified into the following three groups, according to their purpose: primary prevention apps, acute stroke management apps, and postacute stroke apps.
 

Prevention and management

The investigators found one primary prevention app, the Stroke Riskometer, that was based on an algorithm derived from the Framingham Stroke Risk Score and was designed to educate patients about diet, physical activity, and the warning signs of stroke. However, their review failed to show that the app was beneficial, compared with standard cardiovascular risk reduction.

Apps appeared to aid acute stroke management, according to the researchers. Prehospital apps, such as iLAMA, Smartphone-Assisted Pre-Hospital Medical Information System, FAST-ED, Egyptian Stroke Network, Act Fast, and the Mayo Clinic Acute Stroke Evaluation app were found to speed up stroke recognition, activate emergency medical services for speedier transport to the hospital, and facilitate communication with in-hospital stroke teams. All these prehospital apps reduced door-to-needle time.

The JOIN app also was shown to significantly reduce door-to-needle time, compared with no app support, in several studies. JOIN consists of a chat, a DICOM viewer, and an encrypted two-way video system for video calls between practitioners, as well as a milestones time stamp to record every step from home to hospital transportation to therapy onset. 

StopStroke, another app that focuses on instant communication among physicians and allows real-time sharing of clinical data of stroke patients, reduced door-to-image and door-to-needle time, compared with no app.

Act Fast, which uses a National Institutes of Health Stroke Scale (NIHSS) calculator, a thrombolysis checklist, and a toolbox to share images and notes among practitioners involved in the decision-making process, decreased door-to-needle time by 16 minutes, compared with no app.

In a study of medical residents, adherence to guidelines was higher in participants who used the Mayo Clinic Acute Stroke Evaluation app, compared with those who did not. Door-to-needle time also was reduced by 16 minutes in the app-assisted group, compared with controls.
 

Postacute stroke apps

The Rehabilitation Guardian app, consisting of a health reminder, consultation, health information, and patient diary, gives medical information and provides rehabilitation exercises. Patients can enter their clinical information, and the medical staff can access it and assist with the rehab process remotely.

As for apps for chronic management and secondary prevention, Dr. Pilato and colleagues found that the PRESTRO app, which combines motivational support for a healthy lifestyle and tells patients to take their medications and measure their blood pressure, successfully got patients to be more physically active, compared with those who did not use the app.

Another app for secondary prevention, the Korea University Health Monitoring System for Stroke (KUHMS2), reduced blood pressure and glucose levels in patients who used it, compared with those who did not.

Lose It, a weight loss app, is an electronic food journal that shows the values of the macronutrients of foods that the patient consumes, as well as a daily calorie count. The Engaging Everyday Activities app effectively reminds patients who have had transient ischemic attacks about daily activities that can reduce their risk for a recurrent attack.

Movies4Stroke features educational videos about first aid, rehabilitation, how to improve swallowing, and stroke risk factors.

AFib 2gether allows patients to enter their clinical data and calculates their annual stroke risk scores. The information is provided to a health care provider before the next visit to help the patient make an informed decision about anticoagulation therapy.

“We believe that the widespread use of smartphones and apps may improve patient care in every part of the world and in particular in those parts where updated guideline consultation is not readily available. However, in our study we found that apps to implement guidelines by a clinical decision support system are still lacking. Our hope is that these apps will increase in the future,” said Dr. Pilato.
 

No panacea

Commenting on this review for this article, Amy Guzik, MD, associate professor of neurology at Wake Forest University School of Medicine, Winston-Salem, N.C., said that all physicians are looking for opportunities to use technology, especially in stroke, to diagnose and treat patients in the best way they can.

“Figuring out ways to increase efficiency and get the word out to our patients is very important to us and is probably why there are so many apps out there,” said Dr. Guzik.

“There are some ways such apps could be particularly useful. One is in remote hospitals that might not have a neurologist. Helping with the diagnosis and determining what is a bad stroke that needs to go to a higher level of medical care, or whether it is something the local hospital could take care of, would be useful,” said Dr. Guzik.

“Also helping EMS figure out which hospital to go to, or once they are on their way, being able to talk to the neurologist or neurosurgeon or the emergency room doctor and make a plan before the patient gets here, so we can expedite care when the patient arrives, is where apps can be particularly useful,” she added.

There are limitations to what apps can do, however. In the case of stroke, patients may often have important barriers that do not allow them to use apps at all, she said.

“Regardless of how they are being taken care of, a lot of our stroke patients will have problems with technology. A stroke can make texting difficult. Patients may have language difficulties, weakness, or cognitive impairment. They are relying on caregivers. All of this makes it difficult for a tech solution to be the automatic solution, unless things are done in a thoughtful way to make sure that it is appropriate for stroke patients.

“Also, there are a lot of elderly patients who may not necessarily be the most tech savvy and do not have as much digital literacy as younger patients. Another limitation to consider is that some people may not even have easy access to technology. So we must make sure that this is all done with an equity focus,” said Dr. Guzik.

The study was funded by the Associazione Nazionale fra le Imprese Assicuratrici (ANIA). Dr. Pilato and Dr. Guzik reported no relevant financial relationships.

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

In the management of acute and chronic stroke, smartphone apps enhance communication between first responders and waiting hospital staff and reduce door-to-needle time, according to a literature review.

“In clinical practice, guideline-driven patient care is very important in improving diagnosis and outcomes, and apps provide a very practical and easy way to check available guidelines,” senior author Fabio Pilato, MD, a neurologist at Università Campus Bio-Medico, Rome, told this news organization.

The review was published  in the Journal of Stroke.
 

Reviewing the literature

“My colleagues and I wanted to discover whether smartphone apps, besides just facilitating communication between doctors and their patients, could improve patient care,” said Dr. Pilato. “We wanted to see if there were any apps that could guide clinical decisions according to guidelines and whether there were some being used in acute stroke management,” he added.

The investigators reviewed 43 studies of stroke-related mobile phone apps that were designed for the clinical management of stroke between June 1, 2007, when the first iPhone was introduced, and Jan. 31, 2022.

The apps were classified into the following three groups, according to their purpose: primary prevention apps, acute stroke management apps, and postacute stroke apps.
 

Prevention and management

The investigators found one primary prevention app, the Stroke Riskometer, that was based on an algorithm derived from the Framingham Stroke Risk Score and was designed to educate patients about diet, physical activity, and the warning signs of stroke. However, their review failed to show that the app was beneficial, compared with standard cardiovascular risk reduction.

Apps appeared to aid acute stroke management, according to the researchers. Prehospital apps, such as iLAMA, Smartphone-Assisted Pre-Hospital Medical Information System, FAST-ED, Egyptian Stroke Network, Act Fast, and the Mayo Clinic Acute Stroke Evaluation app were found to speed up stroke recognition, activate emergency medical services for speedier transport to the hospital, and facilitate communication with in-hospital stroke teams. All these prehospital apps reduced door-to-needle time.

The JOIN app also was shown to significantly reduce door-to-needle time, compared with no app support, in several studies. JOIN consists of a chat, a DICOM viewer, and an encrypted two-way video system for video calls between practitioners, as well as a milestones time stamp to record every step from home to hospital transportation to therapy onset. 

StopStroke, another app that focuses on instant communication among physicians and allows real-time sharing of clinical data of stroke patients, reduced door-to-image and door-to-needle time, compared with no app.

Act Fast, which uses a National Institutes of Health Stroke Scale (NIHSS) calculator, a thrombolysis checklist, and a toolbox to share images and notes among practitioners involved in the decision-making process, decreased door-to-needle time by 16 minutes, compared with no app.

In a study of medical residents, adherence to guidelines was higher in participants who used the Mayo Clinic Acute Stroke Evaluation app, compared with those who did not. Door-to-needle time also was reduced by 16 minutes in the app-assisted group, compared with controls.
 

Postacute stroke apps

The Rehabilitation Guardian app, consisting of a health reminder, consultation, health information, and patient diary, gives medical information and provides rehabilitation exercises. Patients can enter their clinical information, and the medical staff can access it and assist with the rehab process remotely.

As for apps for chronic management and secondary prevention, Dr. Pilato and colleagues found that the PRESTRO app, which combines motivational support for a healthy lifestyle and tells patients to take their medications and measure their blood pressure, successfully got patients to be more physically active, compared with those who did not use the app.

Another app for secondary prevention, the Korea University Health Monitoring System for Stroke (KUHMS2), reduced blood pressure and glucose levels in patients who used it, compared with those who did not.

Lose It, a weight loss app, is an electronic food journal that shows the values of the macronutrients of foods that the patient consumes, as well as a daily calorie count. The Engaging Everyday Activities app effectively reminds patients who have had transient ischemic attacks about daily activities that can reduce their risk for a recurrent attack.

Movies4Stroke features educational videos about first aid, rehabilitation, how to improve swallowing, and stroke risk factors.

AFib 2gether allows patients to enter their clinical data and calculates their annual stroke risk scores. The information is provided to a health care provider before the next visit to help the patient make an informed decision about anticoagulation therapy.

“We believe that the widespread use of smartphones and apps may improve patient care in every part of the world and in particular in those parts where updated guideline consultation is not readily available. However, in our study we found that apps to implement guidelines by a clinical decision support system are still lacking. Our hope is that these apps will increase in the future,” said Dr. Pilato.
 

No panacea

Commenting on this review for this article, Amy Guzik, MD, associate professor of neurology at Wake Forest University School of Medicine, Winston-Salem, N.C., said that all physicians are looking for opportunities to use technology, especially in stroke, to diagnose and treat patients in the best way they can.

“Figuring out ways to increase efficiency and get the word out to our patients is very important to us and is probably why there are so many apps out there,” said Dr. Guzik.

“There are some ways such apps could be particularly useful. One is in remote hospitals that might not have a neurologist. Helping with the diagnosis and determining what is a bad stroke that needs to go to a higher level of medical care, or whether it is something the local hospital could take care of, would be useful,” said Dr. Guzik.

“Also helping EMS figure out which hospital to go to, or once they are on their way, being able to talk to the neurologist or neurosurgeon or the emergency room doctor and make a plan before the patient gets here, so we can expedite care when the patient arrives, is where apps can be particularly useful,” she added.

There are limitations to what apps can do, however. In the case of stroke, patients may often have important barriers that do not allow them to use apps at all, she said.

“Regardless of how they are being taken care of, a lot of our stroke patients will have problems with technology. A stroke can make texting difficult. Patients may have language difficulties, weakness, or cognitive impairment. They are relying on caregivers. All of this makes it difficult for a tech solution to be the automatic solution, unless things are done in a thoughtful way to make sure that it is appropriate for stroke patients.

“Also, there are a lot of elderly patients who may not necessarily be the most tech savvy and do not have as much digital literacy as younger patients. Another limitation to consider is that some people may not even have easy access to technology. So we must make sure that this is all done with an equity focus,” said Dr. Guzik.

The study was funded by the Associazione Nazionale fra le Imprese Assicuratrici (ANIA). Dr. Pilato and Dr. Guzik reported no relevant financial relationships.

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

The authors of a new evidence review recommend the Canadian TIA Risk Score for managing patients who present to the emergency department or physician’s office with an apparent transient ischemic attack (TIA) or minor stroke.

“Many hospitals do not have enough stroke neurologists to see every patient with TIA or minor stroke within 24 hours. Likewise, many emergency departments around the world are stretched beyond capacity,” study author Jeffery J. Perry, MD, senior scientist at the Ottawa Hospital Research Institute, said in an interview.

“This review corresponds to most of the recommendations by the American Heart Association and the Canadian Stroke Best Practice Recommendations,” he said. “It does, however, go further to differentiate high-risk versus low-risk patients for subsequent stroke using the Canadian TIA Score and offers practical suggestions for how to provide high-quality care in environments without the capacity to provide immediate vascular imaging, immediate MRI scanning, and immediate stroke specialist assessments.”

Most patients at low risk of a subsequent stroke (that is, patients with < 1% risk for a subsequent stroke at 7 days) can be managed safely as outpatients without causing delays in their departure for vascular imaging or neurology consultation during their initial emergency department visits, Dr. Perry added. “The Canadian TIA Score can be used to determine the urgency for an assessment by a stroke neurologist.”

The study was published  in CMAJ.
 

Score stratifies risk

Dr. Perry, lead author of the Canadian TIA Score validation study, said that the CMAJ editorial board approached him to write the review and to incorporate the new score into the latest recommendations. To include the latest evidence, Dr. Perry and colleagues reviewed the most recent position statements on TIA and minor stroke management and searched the literature for relevant articles. They note that the nomenclature related to TIA and minor stroke is inconsistent, that it’s not necessary to differentiate between the two from a clinical standpoint, and that the term “acute ischemic cerebrovascular syndrome” has been proposed to include both.

Broadly, the team’s recommended strategy for the diagnosis and management of the condition includes the following steps:

• Diagnosis: Sudden loss of motor function and impaired speech are strong indicators; symptoms tend to be negative (for example, loss of vision rather than flashing lights).
• Risk assessment: Use of the Canadian TIA Score to stratify 7-day stroke risk (low risk: < 1%, medium risk: 1%-5%, high risk: > 5%).
• Investigations: Urgent CT within 48 hours; vascular imaging to identify acutely symptomatic carotid stenosis in medium- to high-risk patients, as determined on the basis of the TIA score; ECG to identify atrial fibrillation or flutter and to optimize anticoagulant use; if the index of suspicion is high, echocardiography should be employed to look for cardioembolic sources.
• Management: Dual antiplatelet therapy for 21 days in medium- and high-risk patients; hypertension should be managed; patients should be referred for stroke clinic assessment; aggressive lifestyle changes should be initiated to lower lipid levels.

“I believe that our recommendations should be incorporated with the clinical guidelines,” said Dr. Perry.
 

Caveats and concerns

Commenting on the article, Steven M. Greenberg, MD, PhD, vice chair for faculty development of the department of neurology at Massachusetts General Hospital and a professor of neurology at Harvard Medical School, both in Boston, said, “Although the proposed guidelines are broadly evidence-based and consistent with standard of care, there are several areas where stroke specialists might disagree and suggest alternative strategies.” Dr. Greenberg was not involved in the study.

While some lower-risk features, such as repetitive or stereotyped symptoms or vertigo, can be more suggestive of TIA mimics, he said that “these features need to be scrutinized quite carefully. Critical carotid stenosis, for example, can give rise to brief, repetitive, stereotyped low-flow TIAs that require urgent revascularization.”

Vertigo might be a feature of brainstem or cerebellar TIA or minor stroke, said Dr. Greenberg, especially in the setting of other posterior circulation symptoms. Validated guidelines for differentiating peripheral vertigo and CNS vertigo are available, he noted.

“Another caveat is that the studies demonstrating benefit of brief dual antiplatelet therapy following acute TIA or minor stroke were based on ABCD2 rather than the Canadian TIA score,” he said. “It is therefore important for any score-based recommendations to be applied in the overall context of existing stroke prevention guidelines.”

In addition to the recommendation for urgent vascular imaging of patients whose presentations suggest bona fide TIA or minor stroke, most guidelines also recommend extended cardiac monitoring and transthoracic ECG to identify potential sources of embolism, Dr. Greenberg added. “Users of these guidelines should also be aware of the limited yield of head CT, which is able to detect some old strokes, large acute strokes – presumably not relevant to patients presenting with TIA or minor stroke – and acute intracranial hemorrhages.”

Louis R. Caplan, MD, founder of the Harvard Stroke Registry at Beth Israel Deaconess Medical Center, Boston, and a professor of neurology at Harvard Medical School, also commented on the study.

While the review “is okay for care by nonstroke specialists, ideally, major referral centers could have a TIA or stroke clinic, as is present in much of Western Europe,” he said. This would allow the stroke etiology to be investigated for each patient.

“Many patients can be treated with the regimen outlined by the authors, but some with other conditions, such as atrial cardiopathy, patent foramen ovale, atrial myxoma, thrombus within the cardiac ventricle or atrium, will require anticoagulants,” he noted. “Thrombolysis and mechanical thrombectomy would be considered in some. Each stroke patient is different, and management cannot be homogenized into one remedy. One size does not fit all.”

In an accompanying commentary, Shelagh B. Coutts, MD, and Michael D. Hill, MD, both of the University of Calgary (Alta.), presented their team’s approach to the acute management of patients with likely cerebral ischemia. Such management includes risk assessment and stratification by clinical symptoms, rather than a particular score. They also typically conduct CT angiography. “If the CTA is completely normal (that is, no occlusion, no atherosclerosis or arterial dissection and no other vascular abnormality), we rely on the high negative predictive value of this result and discharge the patient home on antiplatelet treatment with outpatient follow-up, including MRI of the brain (since CT cannot reliably rule out minor ischemia) within the first week,” they write.

The review was conducted without commercial funding. Dr. Perry, Dr. Greenberg, Dr. Caplan, Dr. Coutts, and Dr. Hill have disclosed no relevant financial relationships.

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

The authors of a new evidence review recommend the Canadian TIA Risk Score for managing patients who present to the emergency department or physician’s office with an apparent transient ischemic attack (TIA) or minor stroke.

“Many hospitals do not have enough stroke neurologists to see every patient with TIA or minor stroke within 24 hours. Likewise, many emergency departments around the world are stretched beyond capacity,” study author Jeffery J. Perry, MD, senior scientist at the Ottawa Hospital Research Institute, said in an interview.

“This review corresponds to most of the recommendations by the American Heart Association and the Canadian Stroke Best Practice Recommendations,” he said. “It does, however, go further to differentiate high-risk versus low-risk patients for subsequent stroke using the Canadian TIA Score and offers practical suggestions for how to provide high-quality care in environments without the capacity to provide immediate vascular imaging, immediate MRI scanning, and immediate stroke specialist assessments.”

Most patients at low risk of a subsequent stroke (that is, patients with < 1% risk for a subsequent stroke at 7 days) can be managed safely as outpatients without causing delays in their departure for vascular imaging or neurology consultation during their initial emergency department visits, Dr. Perry added. “The Canadian TIA Score can be used to determine the urgency for an assessment by a stroke neurologist.”

The study was published  in CMAJ.
 

Score stratifies risk

Dr. Perry, lead author of the Canadian TIA Score validation study, said that the CMAJ editorial board approached him to write the review and to incorporate the new score into the latest recommendations. To include the latest evidence, Dr. Perry and colleagues reviewed the most recent position statements on TIA and minor stroke management and searched the literature for relevant articles. They note that the nomenclature related to TIA and minor stroke is inconsistent, that it’s not necessary to differentiate between the two from a clinical standpoint, and that the term “acute ischemic cerebrovascular syndrome” has been proposed to include both.

Broadly, the team’s recommended strategy for the diagnosis and management of the condition includes the following steps:

• Diagnosis: Sudden loss of motor function and impaired speech are strong indicators; symptoms tend to be negative (for example, loss of vision rather than flashing lights).
• Risk assessment: Use of the Canadian TIA Score to stratify 7-day stroke risk (low risk: < 1%, medium risk: 1%-5%, high risk: > 5%).
• Investigations: Urgent CT within 48 hours; vascular imaging to identify acutely symptomatic carotid stenosis in medium- to high-risk patients, as determined on the basis of the TIA score; ECG to identify atrial fibrillation or flutter and to optimize anticoagulant use; if the index of suspicion is high, echocardiography should be employed to look for cardioembolic sources.
• Management: Dual antiplatelet therapy for 21 days in medium- and high-risk patients; hypertension should be managed; patients should be referred for stroke clinic assessment; aggressive lifestyle changes should be initiated to lower lipid levels.

“I believe that our recommendations should be incorporated with the clinical guidelines,” said Dr. Perry.
 

Caveats and concerns

Commenting on the article, Steven M. Greenberg, MD, PhD, vice chair for faculty development of the department of neurology at Massachusetts General Hospital and a professor of neurology at Harvard Medical School, both in Boston, said, “Although the proposed guidelines are broadly evidence-based and consistent with standard of care, there are several areas where stroke specialists might disagree and suggest alternative strategies.” Dr. Greenberg was not involved in the study.

While some lower-risk features, such as repetitive or stereotyped symptoms or vertigo, can be more suggestive of TIA mimics, he said that “these features need to be scrutinized quite carefully. Critical carotid stenosis, for example, can give rise to brief, repetitive, stereotyped low-flow TIAs that require urgent revascularization.”

Vertigo might be a feature of brainstem or cerebellar TIA or minor stroke, said Dr. Greenberg, especially in the setting of other posterior circulation symptoms. Validated guidelines for differentiating peripheral vertigo and CNS vertigo are available, he noted.

“Another caveat is that the studies demonstrating benefit of brief dual antiplatelet therapy following acute TIA or minor stroke were based on ABCD2 rather than the Canadian TIA score,” he said. “It is therefore important for any score-based recommendations to be applied in the overall context of existing stroke prevention guidelines.”

In addition to the recommendation for urgent vascular imaging of patients whose presentations suggest bona fide TIA or minor stroke, most guidelines also recommend extended cardiac monitoring and transthoracic ECG to identify potential sources of embolism, Dr. Greenberg added. “Users of these guidelines should also be aware of the limited yield of head CT, which is able to detect some old strokes, large acute strokes – presumably not relevant to patients presenting with TIA or minor stroke – and acute intracranial hemorrhages.”

Louis R. Caplan, MD, founder of the Harvard Stroke Registry at Beth Israel Deaconess Medical Center, Boston, and a professor of neurology at Harvard Medical School, also commented on the study.

While the review “is okay for care by nonstroke specialists, ideally, major referral centers could have a TIA or stroke clinic, as is present in much of Western Europe,” he said. This would allow the stroke etiology to be investigated for each patient.

“Many patients can be treated with the regimen outlined by the authors, but some with other conditions, such as atrial cardiopathy, patent foramen ovale, atrial myxoma, thrombus within the cardiac ventricle or atrium, will require anticoagulants,” he noted. “Thrombolysis and mechanical thrombectomy would be considered in some. Each stroke patient is different, and management cannot be homogenized into one remedy. One size does not fit all.”

In an accompanying commentary, Shelagh B. Coutts, MD, and Michael D. Hill, MD, both of the University of Calgary (Alta.), presented their team’s approach to the acute management of patients with likely cerebral ischemia. Such management includes risk assessment and stratification by clinical symptoms, rather than a particular score. They also typically conduct CT angiography. “If the CTA is completely normal (that is, no occlusion, no atherosclerosis or arterial dissection and no other vascular abnormality), we rely on the high negative predictive value of this result and discharge the patient home on antiplatelet treatment with outpatient follow-up, including MRI of the brain (since CT cannot reliably rule out minor ischemia) within the first week,” they write.

The review was conducted without commercial funding. Dr. Perry, Dr. Greenberg, Dr. Caplan, Dr. Coutts, and Dr. Hill have disclosed no relevant financial relationships.

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

The authors of a new evidence review recommend the Canadian TIA Risk Score for managing patients who present to the emergency department or physician’s office with an apparent transient ischemic attack (TIA) or minor stroke.

“Many hospitals do not have enough stroke neurologists to see every patient with TIA or minor stroke within 24 hours. Likewise, many emergency departments around the world are stretched beyond capacity,” study author Jeffery J. Perry, MD, senior scientist at the Ottawa Hospital Research Institute, said in an interview.

“This review corresponds to most of the recommendations by the American Heart Association and the Canadian Stroke Best Practice Recommendations,” he said. “It does, however, go further to differentiate high-risk versus low-risk patients for subsequent stroke using the Canadian TIA Score and offers practical suggestions for how to provide high-quality care in environments without the capacity to provide immediate vascular imaging, immediate MRI scanning, and immediate stroke specialist assessments.”

Most patients at low risk of a subsequent stroke (that is, patients with < 1% risk for a subsequent stroke at 7 days) can be managed safely as outpatients without causing delays in their departure for vascular imaging or neurology consultation during their initial emergency department visits, Dr. Perry added. “The Canadian TIA Score can be used to determine the urgency for an assessment by a stroke neurologist.”

The study was published  in CMAJ.
 

Score stratifies risk

Dr. Perry, lead author of the Canadian TIA Score validation study, said that the CMAJ editorial board approached him to write the review and to incorporate the new score into the latest recommendations. To include the latest evidence, Dr. Perry and colleagues reviewed the most recent position statements on TIA and minor stroke management and searched the literature for relevant articles. They note that the nomenclature related to TIA and minor stroke is inconsistent, that it’s not necessary to differentiate between the two from a clinical standpoint, and that the term “acute ischemic cerebrovascular syndrome” has been proposed to include both.

Broadly, the team’s recommended strategy for the diagnosis and management of the condition includes the following steps:

• Diagnosis: Sudden loss of motor function and impaired speech are strong indicators; symptoms tend to be negative (for example, loss of vision rather than flashing lights).
• Risk assessment: Use of the Canadian TIA Score to stratify 7-day stroke risk (low risk: < 1%, medium risk: 1%-5%, high risk: > 5%).
• Investigations: Urgent CT within 48 hours; vascular imaging to identify acutely symptomatic carotid stenosis in medium- to high-risk patients, as determined on the basis of the TIA score; ECG to identify atrial fibrillation or flutter and to optimize anticoagulant use; if the index of suspicion is high, echocardiography should be employed to look for cardioembolic sources.
• Management: Dual antiplatelet therapy for 21 days in medium- and high-risk patients; hypertension should be managed; patients should be referred for stroke clinic assessment; aggressive lifestyle changes should be initiated to lower lipid levels.

“I believe that our recommendations should be incorporated with the clinical guidelines,” said Dr. Perry.
 

Caveats and concerns

Commenting on the article, Steven M. Greenberg, MD, PhD, vice chair for faculty development of the department of neurology at Massachusetts General Hospital and a professor of neurology at Harvard Medical School, both in Boston, said, “Although the proposed guidelines are broadly evidence-based and consistent with standard of care, there are several areas where stroke specialists might disagree and suggest alternative strategies.” Dr. Greenberg was not involved in the study.

While some lower-risk features, such as repetitive or stereotyped symptoms or vertigo, can be more suggestive of TIA mimics, he said that “these features need to be scrutinized quite carefully. Critical carotid stenosis, for example, can give rise to brief, repetitive, stereotyped low-flow TIAs that require urgent revascularization.”

Vertigo might be a feature of brainstem or cerebellar TIA or minor stroke, said Dr. Greenberg, especially in the setting of other posterior circulation symptoms. Validated guidelines for differentiating peripheral vertigo and CNS vertigo are available, he noted.

“Another caveat is that the studies demonstrating benefit of brief dual antiplatelet therapy following acute TIA or minor stroke were based on ABCD2 rather than the Canadian TIA score,” he said. “It is therefore important for any score-based recommendations to be applied in the overall context of existing stroke prevention guidelines.”

In addition to the recommendation for urgent vascular imaging of patients whose presentations suggest bona fide TIA or minor stroke, most guidelines also recommend extended cardiac monitoring and transthoracic ECG to identify potential sources of embolism, Dr. Greenberg added. “Users of these guidelines should also be aware of the limited yield of head CT, which is able to detect some old strokes, large acute strokes – presumably not relevant to patients presenting with TIA or minor stroke – and acute intracranial hemorrhages.”

Louis R. Caplan, MD, founder of the Harvard Stroke Registry at Beth Israel Deaconess Medical Center, Boston, and a professor of neurology at Harvard Medical School, also commented on the study.

While the review “is okay for care by nonstroke specialists, ideally, major referral centers could have a TIA or stroke clinic, as is present in much of Western Europe,” he said. This would allow the stroke etiology to be investigated for each patient.

“Many patients can be treated with the regimen outlined by the authors, but some with other conditions, such as atrial cardiopathy, patent foramen ovale, atrial myxoma, thrombus within the cardiac ventricle or atrium, will require anticoagulants,” he noted. “Thrombolysis and mechanical thrombectomy would be considered in some. Each stroke patient is different, and management cannot be homogenized into one remedy. One size does not fit all.”

In an accompanying commentary, Shelagh B. Coutts, MD, and Michael D. Hill, MD, both of the University of Calgary (Alta.), presented their team’s approach to the acute management of patients with likely cerebral ischemia. Such management includes risk assessment and stratification by clinical symptoms, rather than a particular score. They also typically conduct CT angiography. “If the CTA is completely normal (that is, no occlusion, no atherosclerosis or arterial dissection and no other vascular abnormality), we rely on the high negative predictive value of this result and discharge the patient home on antiplatelet treatment with outpatient follow-up, including MRI of the brain (since CT cannot reliably rule out minor ischemia) within the first week,” they write.

The review was conducted without commercial funding. Dr. Perry, Dr. Greenberg, Dr. Caplan, Dr. Coutts, and Dr. Hill have disclosed no relevant financial relationships.

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

Diabetes persists as a risk factor for cardiovascular events, but where it once meant the same risk of heart attack or stroke as cardiovascular disease itself, a large Canadian population study reports that’s no longer the case. Thanks to advances in diabetes management over the past quarter century, diabetes is no longer considered equivalent to CVD as a risk factor for cardiovascular events, researchers from the University of Toronto reported.

The retrospective, population-based study used administrative data from Ontario’s provincial universal health care system. The researchers created five population-based cohorts of adults at 5-year intervals from 1994 to 2014, consisting of 1.87 million adults in the first cohort and 1.5 million in the last. In that 20-year span, the prevalence of diabetes in this population tripled, from 3.1% to 9%.

“In the last 25 years we’ve seen wholesale changes in the way people approach diabetes,” lead study author Calvin Ke, MD, PhD, an endocrinologist and assistant professor at the University of Toronto, said in an interview. “Part of the findings show that diabetes and cardiovascular disease were equivalent for risk of cardiovascular events in 1994, but by 2014 that was not the case.”

However, Dr. Ke added, “Diabetes is still a very strong cardiovascular risk factor.”

The investigators for the study, reported as a research letter in JAMA, analyzed the risk of cardiovascular events in four subgroups: those who had both diabetes and CVD, CVD only, diabetes only, and no CVD or diabetes.

Between 1994 and 2014, the cardiovascular event rates declined significantly among people with diabetes alone, compared with people with no disease: from 28.4 to 12.7 per 1,000 person-years, or an absolute risk increase (ARI) of 4.4% and a relative risk (RR) more than double (2.06), in 1994 to 14 vs. 8 per 1,000 person-years, and an ARI of 2% and RR less than double (1.58) 20 years later.

Among people with CVD only, those values shifted from 36.1 per 1,000 person-years, ARI of 5.1% and RR of 2.16 in 1994 to 23.9, ARI of 3.7% and RR still more than double (2.06) in 2014.

People with both CVD and diabetes had the highest CVD event rates across all 5-year cohorts: 74 per 1,000 person-years, ARI of 12% and RR almost four times greater (3.81) in 1994 than people with no disease. By 2014, the ARI in this group was 7.6% and the RR 3.10.

The investigators calculated that event rates from 1994 to 2014 declined across all four subgroups, with rate ratios of 0.49 for diabetes only, 0.66 for CVD only, 0.60 for both diabetes and CVD, and 0.63 for neither disease.

Shift in practice

The study noted that the shift in diabetes as a risk factor for heart attack and stroke is “a change that likely reflects the use of modern, multifactorial approaches to diabetes.”

“A number of changes have occurred in practice that really focus on this idea of a multifactorial approach to diabetes: more aggressive management of blood sugar, blood pressure, and lipids,” Dr. Ke said. “We know from the statin trials that statins can reduce the risk of heart disease significantly, and the use of statins increased from 28.4% in 1999 to 56.3% in 2018 in the United States,” Dr. Ke said. He added that statin use in Canada in adults ages 40 and older went from 1.2% in 1994 to 58.4% in 2010-2015. Use of ACE inhibitors and angiotensin receptor blockers for hypertension followed similar trends, contributing further to reducing risks for heart attack and stroke, Dr. Ke said.

Dr. Ke also noted that the evolution of guidelines and advances in treatments for both CVD and diabetes since 1994 have contributed to improving risks for people with diabetes. SGLT2 inhibitors have been linked to a 2%-6% reduction in hemoglobin A1c, he said. “All of these factors combined have had a major effect on the reduced risk of cardiovascular events.”

Prakash Deedwania, MD, professor at the University of California, San Francisco, Fresno, said that this study confirms a trend that others have reported regarding the risk of CVD in diabetes. The large database covering millions of adults is a study strength, he said.

And the findings, Dr. Deedwania added, underscore what’s been published in clinical guidelines, notably the American Heart Association scientific statement for managing CVD risk in patients with diabetes. “This means that, from observations made 20-plus years ago, when most people were not being treated for diabetes or heart disease, the pendulum has swung,” he said.

However, he added, “The authors state clearly that it does not mean that diabetes is not associated with a higher risk of cardiovascular events; it just means it is no longer equivalent to CVD.”

Managing diabetes continues to be “particularly important,” Dr. Deedwania said, because the prevalence of diabetes continues to rise. “This is a phenomenal risk, and it emphasizes that, to really conquer or control diabetes, we should make every effort to prevent diabetes,” he said.

Dr. Ke and Dr. Deedwania have no relevant financial relationships to disclose.

Diabetes persists as a risk factor for cardiovascular events, but where it once meant the same risk of heart attack or stroke as cardiovascular disease itself, a large Canadian population study reports that’s no longer the case. Thanks to advances in diabetes management over the past quarter century, diabetes is no longer considered equivalent to CVD as a risk factor for cardiovascular events, researchers from the University of Toronto reported.

The retrospective, population-based study used administrative data from Ontario’s provincial universal health care system. The researchers created five population-based cohorts of adults at 5-year intervals from 1994 to 2014, consisting of 1.87 million adults in the first cohort and 1.5 million in the last. In that 20-year span, the prevalence of diabetes in this population tripled, from 3.1% to 9%.

“In the last 25 years we’ve seen wholesale changes in the way people approach diabetes,” lead study author Calvin Ke, MD, PhD, an endocrinologist and assistant professor at the University of Toronto, said in an interview. “Part of the findings show that diabetes and cardiovascular disease were equivalent for risk of cardiovascular events in 1994, but by 2014 that was not the case.”

However, Dr. Ke added, “Diabetes is still a very strong cardiovascular risk factor.”

The investigators for the study, reported as a research letter in JAMA, analyzed the risk of cardiovascular events in four subgroups: those who had both diabetes and CVD, CVD only, diabetes only, and no CVD or diabetes.

Between 1994 and 2014, the cardiovascular event rates declined significantly among people with diabetes alone, compared with people with no disease: from 28.4 to 12.7 per 1,000 person-years, or an absolute risk increase (ARI) of 4.4% and a relative risk (RR) more than double (2.06), in 1994 to 14 vs. 8 per 1,000 person-years, and an ARI of 2% and RR less than double (1.58) 20 years later.

Among people with CVD only, those values shifted from 36.1 per 1,000 person-years, ARI of 5.1% and RR of 2.16 in 1994 to 23.9, ARI of 3.7% and RR still more than double (2.06) in 2014.

People with both CVD and diabetes had the highest CVD event rates across all 5-year cohorts: 74 per 1,000 person-years, ARI of 12% and RR almost four times greater (3.81) in 1994 than people with no disease. By 2014, the ARI in this group was 7.6% and the RR 3.10.

The investigators calculated that event rates from 1994 to 2014 declined across all four subgroups, with rate ratios of 0.49 for diabetes only, 0.66 for CVD only, 0.60 for both diabetes and CVD, and 0.63 for neither disease.

Shift in practice

The study noted that the shift in diabetes as a risk factor for heart attack and stroke is “a change that likely reflects the use of modern, multifactorial approaches to diabetes.”

“A number of changes have occurred in practice that really focus on this idea of a multifactorial approach to diabetes: more aggressive management of blood sugar, blood pressure, and lipids,” Dr. Ke said. “We know from the statin trials that statins can reduce the risk of heart disease significantly, and the use of statins increased from 28.4% in 1999 to 56.3% in 2018 in the United States,” Dr. Ke said. He added that statin use in Canada in adults ages 40 and older went from 1.2% in 1994 to 58.4% in 2010-2015. Use of ACE inhibitors and angiotensin receptor blockers for hypertension followed similar trends, contributing further to reducing risks for heart attack and stroke, Dr. Ke said.

Dr. Ke also noted that the evolution of guidelines and advances in treatments for both CVD and diabetes since 1994 have contributed to improving risks for people with diabetes. SGLT2 inhibitors have been linked to a 2%-6% reduction in hemoglobin A1c, he said. “All of these factors combined have had a major effect on the reduced risk of cardiovascular events.”

Prakash Deedwania, MD, professor at the University of California, San Francisco, Fresno, said that this study confirms a trend that others have reported regarding the risk of CVD in diabetes. The large database covering millions of adults is a study strength, he said.

And the findings, Dr. Deedwania added, underscore what’s been published in clinical guidelines, notably the American Heart Association scientific statement for managing CVD risk in patients with diabetes. “This means that, from observations made 20-plus years ago, when most people were not being treated for diabetes or heart disease, the pendulum has swung,” he said.

However, he added, “The authors state clearly that it does not mean that diabetes is not associated with a higher risk of cardiovascular events; it just means it is no longer equivalent to CVD.”

Managing diabetes continues to be “particularly important,” Dr. Deedwania said, because the prevalence of diabetes continues to rise. “This is a phenomenal risk, and it emphasizes that, to really conquer or control diabetes, we should make every effort to prevent diabetes,” he said.

Dr. Ke and Dr. Deedwania have no relevant financial relationships to disclose.

Diabetes persists as a risk factor for cardiovascular events, but where it once meant the same risk of heart attack or stroke as cardiovascular disease itself, a large Canadian population study reports that’s no longer the case. Thanks to advances in diabetes management over the past quarter century, diabetes is no longer considered equivalent to CVD as a risk factor for cardiovascular events, researchers from the University of Toronto reported.

The retrospective, population-based study used administrative data from Ontario’s provincial universal health care system. The researchers created five population-based cohorts of adults at 5-year intervals from 1994 to 2014, consisting of 1.87 million adults in the first cohort and 1.5 million in the last. In that 20-year span, the prevalence of diabetes in this population tripled, from 3.1% to 9%.

“In the last 25 years we’ve seen wholesale changes in the way people approach diabetes,” lead study author Calvin Ke, MD, PhD, an endocrinologist and assistant professor at the University of Toronto, said in an interview. “Part of the findings show that diabetes and cardiovascular disease were equivalent for risk of cardiovascular events in 1994, but by 2014 that was not the case.”

However, Dr. Ke added, “Diabetes is still a very strong cardiovascular risk factor.”

The investigators for the study, reported as a research letter in JAMA, analyzed the risk of cardiovascular events in four subgroups: those who had both diabetes and CVD, CVD only, diabetes only, and no CVD or diabetes.

Between 1994 and 2014, the cardiovascular event rates declined significantly among people with diabetes alone, compared with people with no disease: from 28.4 to 12.7 per 1,000 person-years, or an absolute risk increase (ARI) of 4.4% and a relative risk (RR) more than double (2.06), in 1994 to 14 vs. 8 per 1,000 person-years, and an ARI of 2% and RR less than double (1.58) 20 years later.

Among people with CVD only, those values shifted from 36.1 per 1,000 person-years, ARI of 5.1% and RR of 2.16 in 1994 to 23.9, ARI of 3.7% and RR still more than double (2.06) in 2014.

People with both CVD and diabetes had the highest CVD event rates across all 5-year cohorts: 74 per 1,000 person-years, ARI of 12% and RR almost four times greater (3.81) in 1994 than people with no disease. By 2014, the ARI in this group was 7.6% and the RR 3.10.

The investigators calculated that event rates from 1994 to 2014 declined across all four subgroups, with rate ratios of 0.49 for diabetes only, 0.66 for CVD only, 0.60 for both diabetes and CVD, and 0.63 for neither disease.

Shift in practice

The study noted that the shift in diabetes as a risk factor for heart attack and stroke is “a change that likely reflects the use of modern, multifactorial approaches to diabetes.”

“A number of changes have occurred in practice that really focus on this idea of a multifactorial approach to diabetes: more aggressive management of blood sugar, blood pressure, and lipids,” Dr. Ke said. “We know from the statin trials that statins can reduce the risk of heart disease significantly, and the use of statins increased from 28.4% in 1999 to 56.3% in 2018 in the United States,” Dr. Ke said. He added that statin use in Canada in adults ages 40 and older went from 1.2% in 1994 to 58.4% in 2010-2015. Use of ACE inhibitors and angiotensin receptor blockers for hypertension followed similar trends, contributing further to reducing risks for heart attack and stroke, Dr. Ke said.

Dr. Ke also noted that the evolution of guidelines and advances in treatments for both CVD and diabetes since 1994 have contributed to improving risks for people with diabetes. SGLT2 inhibitors have been linked to a 2%-6% reduction in hemoglobin A1c, he said. “All of these factors combined have had a major effect on the reduced risk of cardiovascular events.”

Prakash Deedwania, MD, professor at the University of California, San Francisco, Fresno, said that this study confirms a trend that others have reported regarding the risk of CVD in diabetes. The large database covering millions of adults is a study strength, he said.

And the findings, Dr. Deedwania added, underscore what’s been published in clinical guidelines, notably the American Heart Association scientific statement for managing CVD risk in patients with diabetes. “This means that, from observations made 20-plus years ago, when most people were not being treated for diabetes or heart disease, the pendulum has swung,” he said.

However, he added, “The authors state clearly that it does not mean that diabetes is not associated with a higher risk of cardiovascular events; it just means it is no longer equivalent to CVD.”

Managing diabetes continues to be “particularly important,” Dr. Deedwania said, because the prevalence of diabetes continues to rise. “This is a phenomenal risk, and it emphasizes that, to really conquer or control diabetes, we should make every effort to prevent diabetes,” he said.

Dr. Ke and Dr. Deedwania have no relevant financial relationships to disclose.

Apixaban offers greater protection than rivaroxaban against ischemic stroke, systemic embolism, and bleeding in patients with both atrial fibrillation (AFib) and valvular heart disease (VHD), a new study finds.

Compared with rivaroxaban, apixaban cut risks nearly in half, suggesting that clinicians should consider these new data when choosing an anticoagulant, reported lead author Ghadeer K. Dawwas, PhD, of the University of Pennsylvania, Philadelphia, and colleagues.

In the new retrospective study involving almost 20,000 patients, Dr. Dawwas and her colleagues “emulated a target trial” using private insurance claims from Optum’s deidentified Clinformatics Data Mart Database. The cohort was narrowed from a screened population of 58,210 patients with concurrent AFib and VHD to 9,947 new apixaban users who could be closely matched with 9,947 new rivaroxaban users. Covariates included provider specialty, type of VHD, demographic characteristics, measures of health care use, baseline use of medications, and baseline comorbidities.

The primary effectiveness outcome was a composite of systemic embolism and ischemic stroke, while the primary safety outcome was a composite of intracranial or gastrointestinal bleeding.

“Although several ongoing trials aim to compare apixaban with warfarin in patients with AFib and VHD, none of these trials will directly compare apixaban and rivaroxaban,” the investigators wrote. Their report is in Annals of Internal Medicine.

Dr. Dawwas and colleagues previously showed that direct oral anticoagulants (DOACs) were safer and more effective than warfarin in the same patient population. Comparing apixaban and rivaroxaban – the two most common DOACs – was the next logical step, Dr. Dawwas said in an interview.
 

Study results

Compared with rivaroxaban, patients who received apixaban had a 43% reduced risk of stroke or embolism (hazard ratio [HR], 0.57; 95% confidence interval [CI], 0.40-0.80). Apixaban’s ability to protect against bleeding appeared even more pronounced, with a 49% reduced risk over rivaroxaban (HR, 0.51; 95% CI, 0.41-0.62).

Comparing the two agents on an absolute basis, apixaban reduced risk of embolism or stroke by 0.2% within the first 6 months of treatment initiation, and 1.1% within the first year of initiation. At the same time points, absolute risk reductions for bleeding were 1.2% and 1.9%, respectively.

The investigators noted that their results held consistent in an alternative analysis that considered separate types of VHD.

“Based on the results from our analysis, we showed that apixaban is effective and safe in patients with atrial fibrillation and valvular heart diseases,” Dr. Dawwas said.
 

Head-to-head trial needed to change practice

Christopher M. Bianco, DO, associate professor of medicine at West Virginia University Heart and Vascular Institute, Morgantown, said the findings “add to the growing body of literature,” but “a head-to-head trial would be necessary to make a definitive change to clinical practice.”

Dr. Bianco, who recently conducted a retrospective analysis of apixaban and rivaroxaban that found no difference in safety and efficacy among a different patient population, said these kinds of studies are helpful in generating hypotheses, but they can’t account for all relevant clinical factors.

“There are just so many things that go into the decision-making process of [prescribing] apixaban and rivaroxaban,” he said. “Even though [Dr. Dawwas and colleagues] used propensity matching, you’re never going to be able to sort that out with a retrospective analysis.”

Specifically, Dr. Bianco noted that the findings did not include dose data. This is a key gap, he said, considering how often real-world datasets have shown that providers underdose DOACs for a number of unaccountable reasons, and how frequently patients exhibit poor adherence.

The study also lacked detail concerning the degree of renal dysfunction, which can determine drug eligibility, Dr. Bianco said. Furthermore, attempts to stratify patients based on thrombosis and bleeding risk were likely “insufficient,” he added.

Dr. Bianco also cautioned that the investigators defined valvular heart disease as any valve-related disease of any severity. In contrast, previous studies have generally restricted valvular heart disease to patients with mitral stenosis or prosthetic valves.

“This is definitely not the traditional definition of valvular heart disease, so the title is a little bit misleading in that sense, although they certainly do disclose that in the methods,” Dr. Bianco said.

On a more positive note, he highlighted the size of the patient population, and the real-world data, which included many patients who would be excluded from clinical trials.

More broadly, the study helps drive research forward, Dr. Bianco concluded; namely, by attracting financial support for a more powerful head-to-head trial that drug makers are unlikely to fund due to inherent market risk.

This study was supported by the National Institutes of Health. The investigators disclosed additional relationships with Takeda, Spark, Sanofi, and others. Dr. Bianco disclosed no conflicts of interest.

Apixaban offers greater protection than rivaroxaban against ischemic stroke, systemic embolism, and bleeding in patients with both atrial fibrillation (AFib) and valvular heart disease (VHD), a new study finds.

Compared with rivaroxaban, apixaban cut risks nearly in half, suggesting that clinicians should consider these new data when choosing an anticoagulant, reported lead author Ghadeer K. Dawwas, PhD, of the University of Pennsylvania, Philadelphia, and colleagues.

In the new retrospective study involving almost 20,000 patients, Dr. Dawwas and her colleagues “emulated a target trial” using private insurance claims from Optum’s deidentified Clinformatics Data Mart Database. The cohort was narrowed from a screened population of 58,210 patients with concurrent AFib and VHD to 9,947 new apixaban users who could be closely matched with 9,947 new rivaroxaban users. Covariates included provider specialty, type of VHD, demographic characteristics, measures of health care use, baseline use of medications, and baseline comorbidities.

The primary effectiveness outcome was a composite of systemic embolism and ischemic stroke, while the primary safety outcome was a composite of intracranial or gastrointestinal bleeding.

“Although several ongoing trials aim to compare apixaban with warfarin in patients with AFib and VHD, none of these trials will directly compare apixaban and rivaroxaban,” the investigators wrote. Their report is in Annals of Internal Medicine.

Dr. Dawwas and colleagues previously showed that direct oral anticoagulants (DOACs) were safer and more effective than warfarin in the same patient population. Comparing apixaban and rivaroxaban – the two most common DOACs – was the next logical step, Dr. Dawwas said in an interview.
 

Study results

Compared with rivaroxaban, patients who received apixaban had a 43% reduced risk of stroke or embolism (hazard ratio [HR], 0.57; 95% confidence interval [CI], 0.40-0.80). Apixaban’s ability to protect against bleeding appeared even more pronounced, with a 49% reduced risk over rivaroxaban (HR, 0.51; 95% CI, 0.41-0.62).

Comparing the two agents on an absolute basis, apixaban reduced risk of embolism or stroke by 0.2% within the first 6 months of treatment initiation, and 1.1% within the first year of initiation. At the same time points, absolute risk reductions for bleeding were 1.2% and 1.9%, respectively.

The investigators noted that their results held consistent in an alternative analysis that considered separate types of VHD.

“Based on the results from our analysis, we showed that apixaban is effective and safe in patients with atrial fibrillation and valvular heart diseases,” Dr. Dawwas said.
 

Head-to-head trial needed to change practice

Christopher M. Bianco, DO, associate professor of medicine at West Virginia University Heart and Vascular Institute, Morgantown, said the findings “add to the growing body of literature,” but “a head-to-head trial would be necessary to make a definitive change to clinical practice.”

Dr. Bianco, who recently conducted a retrospective analysis of apixaban and rivaroxaban that found no difference in safety and efficacy among a different patient population, said these kinds of studies are helpful in generating hypotheses, but they can’t account for all relevant clinical factors.

“There are just so many things that go into the decision-making process of [prescribing] apixaban and rivaroxaban,” he said. “Even though [Dr. Dawwas and colleagues] used propensity matching, you’re never going to be able to sort that out with a retrospective analysis.”

Specifically, Dr. Bianco noted that the findings did not include dose data. This is a key gap, he said, considering how often real-world datasets have shown that providers underdose DOACs for a number of unaccountable reasons, and how frequently patients exhibit poor adherence.

The study also lacked detail concerning the degree of renal dysfunction, which can determine drug eligibility, Dr. Bianco said. Furthermore, attempts to stratify patients based on thrombosis and bleeding risk were likely “insufficient,” he added.

Dr. Bianco also cautioned that the investigators defined valvular heart disease as any valve-related disease of any severity. In contrast, previous studies have generally restricted valvular heart disease to patients with mitral stenosis or prosthetic valves.

“This is definitely not the traditional definition of valvular heart disease, so the title is a little bit misleading in that sense, although they certainly do disclose that in the methods,” Dr. Bianco said.

On a more positive note, he highlighted the size of the patient population, and the real-world data, which included many patients who would be excluded from clinical trials.

More broadly, the study helps drive research forward, Dr. Bianco concluded; namely, by attracting financial support for a more powerful head-to-head trial that drug makers are unlikely to fund due to inherent market risk.

This study was supported by the National Institutes of Health. The investigators disclosed additional relationships with Takeda, Spark, Sanofi, and others. Dr. Bianco disclosed no conflicts of interest.

Apixaban offers greater protection than rivaroxaban against ischemic stroke, systemic embolism, and bleeding in patients with both atrial fibrillation (AFib) and valvular heart disease (VHD), a new study finds.

Compared with rivaroxaban, apixaban cut risks nearly in half, suggesting that clinicians should consider these new data when choosing an anticoagulant, reported lead author Ghadeer K. Dawwas, PhD, of the University of Pennsylvania, Philadelphia, and colleagues.

In the new retrospective study involving almost 20,000 patients, Dr. Dawwas and her colleagues “emulated a target trial” using private insurance claims from Optum’s deidentified Clinformatics Data Mart Database. The cohort was narrowed from a screened population of 58,210 patients with concurrent AFib and VHD to 9,947 new apixaban users who could be closely matched with 9,947 new rivaroxaban users. Covariates included provider specialty, type of VHD, demographic characteristics, measures of health care use, baseline use of medications, and baseline comorbidities.

The primary effectiveness outcome was a composite of systemic embolism and ischemic stroke, while the primary safety outcome was a composite of intracranial or gastrointestinal bleeding.

“Although several ongoing trials aim to compare apixaban with warfarin in patients with AFib and VHD, none of these trials will directly compare apixaban and rivaroxaban,” the investigators wrote. Their report is in Annals of Internal Medicine.

Dr. Dawwas and colleagues previously showed that direct oral anticoagulants (DOACs) were safer and more effective than warfarin in the same patient population. Comparing apixaban and rivaroxaban – the two most common DOACs – was the next logical step, Dr. Dawwas said in an interview.
 

Study results

Compared with rivaroxaban, patients who received apixaban had a 43% reduced risk of stroke or embolism (hazard ratio [HR], 0.57; 95% confidence interval [CI], 0.40-0.80). Apixaban’s ability to protect against bleeding appeared even more pronounced, with a 49% reduced risk over rivaroxaban (HR, 0.51; 95% CI, 0.41-0.62).

Comparing the two agents on an absolute basis, apixaban reduced risk of embolism or stroke by 0.2% within the first 6 months of treatment initiation, and 1.1% within the first year of initiation. At the same time points, absolute risk reductions for bleeding were 1.2% and 1.9%, respectively.

The investigators noted that their results held consistent in an alternative analysis that considered separate types of VHD.

“Based on the results from our analysis, we showed that apixaban is effective and safe in patients with atrial fibrillation and valvular heart diseases,” Dr. Dawwas said.
 

Head-to-head trial needed to change practice

Christopher M. Bianco, DO, associate professor of medicine at West Virginia University Heart and Vascular Institute, Morgantown, said the findings “add to the growing body of literature,” but “a head-to-head trial would be necessary to make a definitive change to clinical practice.”

Dr. Bianco, who recently conducted a retrospective analysis of apixaban and rivaroxaban that found no difference in safety and efficacy among a different patient population, said these kinds of studies are helpful in generating hypotheses, but they can’t account for all relevant clinical factors.

“There are just so many things that go into the decision-making process of [prescribing] apixaban and rivaroxaban,” he said. “Even though [Dr. Dawwas and colleagues] used propensity matching, you’re never going to be able to sort that out with a retrospective analysis.”

Specifically, Dr. Bianco noted that the findings did not include dose data. This is a key gap, he said, considering how often real-world datasets have shown that providers underdose DOACs for a number of unaccountable reasons, and how frequently patients exhibit poor adherence.

The study also lacked detail concerning the degree of renal dysfunction, which can determine drug eligibility, Dr. Bianco said. Furthermore, attempts to stratify patients based on thrombosis and bleeding risk were likely “insufficient,” he added.

Dr. Bianco also cautioned that the investigators defined valvular heart disease as any valve-related disease of any severity. In contrast, previous studies have generally restricted valvular heart disease to patients with mitral stenosis or prosthetic valves.

“This is definitely not the traditional definition of valvular heart disease, so the title is a little bit misleading in that sense, although they certainly do disclose that in the methods,” Dr. Bianco said.

On a more positive note, he highlighted the size of the patient population, and the real-world data, which included many patients who would be excluded from clinical trials.

More broadly, the study helps drive research forward, Dr. Bianco concluded; namely, by attracting financial support for a more powerful head-to-head trial that drug makers are unlikely to fund due to inherent market risk.

This study was supported by the National Institutes of Health. The investigators disclosed additional relationships with Takeda, Spark, Sanofi, and others. Dr. Bianco disclosed no conflicts of interest.

Exposure to air pollution not only raises stroke risk, but it is also tied to poor post-stroke outcomes, including death. Results of a UK biobank study show high levels of air pollution were associated with an increased risk of transition from health to a first stroke and subsequent progression to cardiovascular (CV) events and death.

“These results indicate that understanding and reducing the effects of air pollutants on different transition stages in stroke will be beneficial in managing people’s health and preventing the occurrence and progression of stroke,” study investigator Hualiang Lin, PhD, of Sun Yat-sen University School of Public Health, Guangzhou, China, said in a news release.

The study was published online  in the journal Neurology.
 

A way to stop stroke progression?

The researchers assessed air pollution exposure in 318,752 people (mean age, 56) from the UK biobank database. None had a history of stroke or heart disease at the start of the study. Annual concentrations of air pollution near where people lived were estimated through land-use regressions.

During an average follow-up of 12 years, 5,967 people had a stroke, 2,985 developed post-stroke CVD, and 1,020 died.

After adjusting for confounding factors, every 5 µg/m³ increase in exposure to fine particulate matter (PM_2.5) was associated with a 24% increase in transition from healthy to first stroke (hazard ratio, 1.24; 95% confidence interval, 1.10-1.40) and a 30% increase in transition from being healthy to dying (HR, 1.30; 95% CI, 1.21-1.40).

PM_2.5 is less than 2.5 microns in diameter and includes fly ash from coal combustion. The World Health Organization recommends that annual PM_2.5 exposure should not exceed 5 µg/m³.

Those who had a stroke during the study had an average exposure of 10.03 µg/m³ of PM_2.5, compared with 9.97 µg/m³ for those who did not have a stroke.

The air pollutants nitrogen oxide and nitrogen dioxide were also associated with an increased risk of stroke and death, but the associations were weaker.

“More research is needed, but it’s possible that decreasing exposure to heavy levels of air pollution could play a role in reducing the progression of stroke,” Dr. Lin said.

“People can reduce their exposure by staying indoors on heavy pollution days, reducing their outdoor exercise, wearing masks to filter out particulate matter, and using air purifiers,” Dr. Lin added.

Public policy implications

Reached for comment, Steffen E. Petersen, MD, MPH, professor of cardiovascular medicine, Barts Health NHS Trust, London, said the study “elegantly confirms the increased risk of stroke due to air pollution in the UK Biobank population study but interestingly suggests that the impact of air pollution may continue to adversely impact cardiovascular health even after the stroke occurred.”

“This is further evidence to inform policymakers to tackle air pollution and get levels below the recommended levels,” Dr. Petersen said.

“On a personal level, everyone, including stroke patients, may wish to consider personal measures to reduce exposure to air pollution, such as avoiding walking along polluted streets and rather take a less polluted route away from the main roads,” Dr. Petersen added.

The study had no targeted funding. Dr. Lin and Dr. Petersen report no relevant financial relationships.

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

Exposure to air pollution not only raises stroke risk, but it is also tied to poor post-stroke outcomes, including death. Results of a UK biobank study show high levels of air pollution were associated with an increased risk of transition from health to a first stroke and subsequent progression to cardiovascular (CV) events and death.

“These results indicate that understanding and reducing the effects of air pollutants on different transition stages in stroke will be beneficial in managing people’s health and preventing the occurrence and progression of stroke,” study investigator Hualiang Lin, PhD, of Sun Yat-sen University School of Public Health, Guangzhou, China, said in a news release.

The study was published online  in the journal Neurology.
 

A way to stop stroke progression?

The researchers assessed air pollution exposure in 318,752 people (mean age, 56) from the UK biobank database. None had a history of stroke or heart disease at the start of the study. Annual concentrations of air pollution near where people lived were estimated through land-use regressions.

During an average follow-up of 12 years, 5,967 people had a stroke, 2,985 developed post-stroke CVD, and 1,020 died.

After adjusting for confounding factors, every 5 µg/m³ increase in exposure to fine particulate matter (PM_2.5) was associated with a 24% increase in transition from healthy to first stroke (hazard ratio, 1.24; 95% confidence interval, 1.10-1.40) and a 30% increase in transition from being healthy to dying (HR, 1.30; 95% CI, 1.21-1.40).

PM_2.5 is less than 2.5 microns in diameter and includes fly ash from coal combustion. The World Health Organization recommends that annual PM_2.5 exposure should not exceed 5 µg/m³.

Those who had a stroke during the study had an average exposure of 10.03 µg/m³ of PM_2.5, compared with 9.97 µg/m³ for those who did not have a stroke.

The air pollutants nitrogen oxide and nitrogen dioxide were also associated with an increased risk of stroke and death, but the associations were weaker.

“More research is needed, but it’s possible that decreasing exposure to heavy levels of air pollution could play a role in reducing the progression of stroke,” Dr. Lin said.

“People can reduce their exposure by staying indoors on heavy pollution days, reducing their outdoor exercise, wearing masks to filter out particulate matter, and using air purifiers,” Dr. Lin added.

Public policy implications

Reached for comment, Steffen E. Petersen, MD, MPH, professor of cardiovascular medicine, Barts Health NHS Trust, London, said the study “elegantly confirms the increased risk of stroke due to air pollution in the UK Biobank population study but interestingly suggests that the impact of air pollution may continue to adversely impact cardiovascular health even after the stroke occurred.”

“This is further evidence to inform policymakers to tackle air pollution and get levels below the recommended levels,” Dr. Petersen said.

“On a personal level, everyone, including stroke patients, may wish to consider personal measures to reduce exposure to air pollution, such as avoiding walking along polluted streets and rather take a less polluted route away from the main roads,” Dr. Petersen added.

The study had no targeted funding. Dr. Lin and Dr. Petersen report no relevant financial relationships.

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

Exposure to air pollution not only raises stroke risk, but it is also tied to poor post-stroke outcomes, including death. Results of a UK biobank study show high levels of air pollution were associated with an increased risk of transition from health to a first stroke and subsequent progression to cardiovascular (CV) events and death.

“These results indicate that understanding and reducing the effects of air pollutants on different transition stages in stroke will be beneficial in managing people’s health and preventing the occurrence and progression of stroke,” study investigator Hualiang Lin, PhD, of Sun Yat-sen University School of Public Health, Guangzhou, China, said in a news release.

The study was published online  in the journal Neurology.
 

A way to stop stroke progression?

The researchers assessed air pollution exposure in 318,752 people (mean age, 56) from the UK biobank database. None had a history of stroke or heart disease at the start of the study. Annual concentrations of air pollution near where people lived were estimated through land-use regressions.

During an average follow-up of 12 years, 5,967 people had a stroke, 2,985 developed post-stroke CVD, and 1,020 died.

After adjusting for confounding factors, every 5 µg/m³ increase in exposure to fine particulate matter (PM_2.5) was associated with a 24% increase in transition from healthy to first stroke (hazard ratio, 1.24; 95% confidence interval, 1.10-1.40) and a 30% increase in transition from being healthy to dying (HR, 1.30; 95% CI, 1.21-1.40).

PM_2.5 is less than 2.5 microns in diameter and includes fly ash from coal combustion. The World Health Organization recommends that annual PM_2.5 exposure should not exceed 5 µg/m³.

Those who had a stroke during the study had an average exposure of 10.03 µg/m³ of PM_2.5, compared with 9.97 µg/m³ for those who did not have a stroke.

The air pollutants nitrogen oxide and nitrogen dioxide were also associated with an increased risk of stroke and death, but the associations were weaker.

“More research is needed, but it’s possible that decreasing exposure to heavy levels of air pollution could play a role in reducing the progression of stroke,” Dr. Lin said.

“People can reduce their exposure by staying indoors on heavy pollution days, reducing their outdoor exercise, wearing masks to filter out particulate matter, and using air purifiers,” Dr. Lin added.

Public policy implications

Reached for comment, Steffen E. Petersen, MD, MPH, professor of cardiovascular medicine, Barts Health NHS Trust, London, said the study “elegantly confirms the increased risk of stroke due to air pollution in the UK Biobank population study but interestingly suggests that the impact of air pollution may continue to adversely impact cardiovascular health even after the stroke occurred.”

“This is further evidence to inform policymakers to tackle air pollution and get levels below the recommended levels,” Dr. Petersen said.

“On a personal level, everyone, including stroke patients, may wish to consider personal measures to reduce exposure to air pollution, such as avoiding walking along polluted streets and rather take a less polluted route away from the main roads,” Dr. Petersen added.

The study had no targeted funding. Dr. Lin and Dr. Petersen report no relevant financial relationships.

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

Shortening the duration of dual-antiplatelet therapy (DAPT) and continuing with a P2Y12 inhibitor alone after percutaneous coronary intervention (PCI) was associated with a similar rate of ischemic events but with less bleeding than prolonged DAPT after 3 years of follow-up in the SMART-CHOICE trial.

“The current results of extended follow-up from the SMART-CHOICE trial support evidence of an aspirin dropping strategy with indefinite use of P2Y12 inhibitor after minimum use of DAPT in patients who underwent PCI,” the investigators, with lead author Ki Hong Choi, MD, division of cardiology, department of medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea, conclude.

The 3-year results from the study were published online in JAMA Cardiology.

The authors explain that although dual therapy with aspirin and a P2Y12 inhibitor after PCI with a drug-eluting stent (DES) is crucial to reduce the risk of ischemic events, it raises concerns about increased risk of bleeding, and the antiplatelet strategy after PCI is currently shifting to reduce the duration of DAPT.

Several recent randomized studies have consistently shown that a short duration of DAPT (1-3 months) followed by P2Y12 inhibitor monotherapy had ischemia protection effects comparable with that of DAPT of longer duration, and it was associated with a significantly reduced risk of bleeding events in patients who underwent PCI, they note. However, these studies have so far reported only 1-year outcomes, and long-term results are not yet available.

The SMART-CHOICE trial compared two antiplatelet strategies – 3 months of DAPT followed by long-term P2Y12 inhibitor monotherapy (mainly with clopidogrel) or prolonged DAPT for 12 months or longer – in 2,993 patients who had undergone PCI with a drug-eluting stent. Results at 12 months showed a similar rate of ischemic events with both strategies but a lower rate of bleeding in the group that received shortened DAPT.

The SMART-CHOICE investigators now report the 3-year results showing similar outcomes.

At 3 years, the primary endpoint, a composite of all-cause death, myocardial infarction, or stroke, had occurred in 6.3% of the shortened DAPT group and 6.1% in the prolonged DAPT group, giving a hazard ratio of 1.06 (95% confidence interval, 0.79-1.44).

But in the shortened DAPT group, the risk of bleeding was reduced. Bleeding Academic Research Consortium (BARC) types 2-5 bleeding had occurred in 3.2% of the shortened DAPT group and in 8.2% of the prolonged DAPT group (hazard ratio, 0.39; 95% CI, 0.28-0.55). Major bleeding, BARC types 3-5, occurred in 1.2% of the shortened DAPT group and in 2.4% of the prolonged DAPT group (HR, 0.56; 95% CI 0.31-0.99).

The landmark analyses between 3 months and 3 years and per-protocol analyses showed consistent results.

The researchers point out that this is the first trial to report on the long-term safety and efficacy of P2Y12-inhibitor monotherapy as long-term maintenance therapy for stable patients treated with PCI.

“Especially considering that extended DAPT significantly reduced the risks of ischemic events compared with aspirin monotherapy in a couple of trials, comparison between P2Y12-inhibitor monotherapy and prolonged DAPT for recurrent ischemic events over a longer period beyond 1 year is of great importance,” they say.

They cite two other trials – HOST-EXAM and GLOBAL LEADERS – which have shown P2Y12-inhibitor monotherapy to be superior to aspirin monotherapy in preventing both ischemic and bleeding events during the long-term maintenance period after PCI.

“Combining the results of the current study, HOST-EXAM trial, and landmark analysis of the GLOBAL LEADERS trial, long-term P2Y12-inhibitor monotherapy after a minimum period of DAPT might be the most reliable option from among aspirin monotherapy, P2Y12 monotherapy, and extended DAPT for maintenance therapy after stabilizing patients who have undergone PCI with a current-generation DES,” they conclude.

They note that the American College of Cardiology/American Heart Association/Society for Cardiovascular Angiography and Interventions guidelines for coronary artery revascularization newly recommends a shorter course of DAPT followed by P2Y12 monotherapy as a class IIa indication. The recommendation is based on results of five large, randomized clinical trials, including SMART-CHOICE, TWILIGHT, STOPDAPT-2, TICO, and GLOBAL LEADERS.

“The current results of extended follow-up from the SMART-CHOICE trial support evidence of aspirin-dropping strategy with indefinite use of P2Y12 inhibitor after minimum use of DAPT in patients who underwent PCI,” they say.

They point out that two further trials, A-CLOSE in high-risk patients and SMART-CHOICE III, will be helpful to confirm these findings.
 

P2Y12-inhibitor monotherapy ‘attractive concept’

In an accompanying editor’s note, Ajay Kirtane, MD, Columbia University Irving Medical Center/New York–Presbyterian Hospital, New York, and Roxana Mehran, MD, Icahn School of Medicine at Mount Sinai and the Cardiovascular Research Foundation, New York, note that current guidelines recommend 3-6 months of DAPT following PCI with current-generation drug-eluting stents in stable patients and 6-12 months or longer for those with acute coronary syndromes. For patients at higher risk of bleeding, even shorter DAPT durations can be considered on a case-by-case basis.

Historically, the component of DAPT subject to discontinuation decisions was the P2Y12 inhibitor (clopidogrel, prasugrel, or ticagrelor), but more recent trials have further explored whether discontinuation of the aspirin component of DAPT can mitigate bleeding while preserving anti-ischemic efficacy.

The editorialists explain that the concept of P2Y1-inhibitor monotherapy is attractive because it may optimize antiplatelet effects through a single agent that can avoid the gastrointestinal toxicity of aspirin as well as the increased bleeding that comes with combing multiple antithrombotic agents.

They suggest that the long-term results from the SMART-CHOICE trial “should lead clinicians to consider a strategy of monotherapy after a short period of DAPT as a viable one to mitigate bleeding risk,” although they also point out that SMART-CHOICE was underpowered to rigorously assess ischemic differences, so caution is warranted.

“For patients at greatest risk for recurrent ischemic events, the role of continued DAPT is always an option, but these data (and other consistent trials) give clinicians more options to pursue individualized treatment decisions,” they write.

“To some, the continually moving field of post-PCI antiplatelet therapy has provided too many choices, which can at times be dizzying. To us, every patient is different, and thoughtful evidence-based consideration is increasingly possible for many of our treatment decisions,” they conclude.

The SMART-CHOICE study was supported by unrestricted grants from the Korean Society of Interventional Cardiology, Abbott Vascular, Biotronik, and Boston Scientific.

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

Shortening the duration of dual-antiplatelet therapy (DAPT) and continuing with a P2Y12 inhibitor alone after percutaneous coronary intervention (PCI) was associated with a similar rate of ischemic events but with less bleeding than prolonged DAPT after 3 years of follow-up in the SMART-CHOICE trial.

“The current results of extended follow-up from the SMART-CHOICE trial support evidence of an aspirin dropping strategy with indefinite use of P2Y12 inhibitor after minimum use of DAPT in patients who underwent PCI,” the investigators, with lead author Ki Hong Choi, MD, division of cardiology, department of medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea, conclude.

The 3-year results from the study were published online in JAMA Cardiology.

The authors explain that although dual therapy with aspirin and a P2Y12 inhibitor after PCI with a drug-eluting stent (DES) is crucial to reduce the risk of ischemic events, it raises concerns about increased risk of bleeding, and the antiplatelet strategy after PCI is currently shifting to reduce the duration of DAPT.

Several recent randomized studies have consistently shown that a short duration of DAPT (1-3 months) followed by P2Y12 inhibitor monotherapy had ischemia protection effects comparable with that of DAPT of longer duration, and it was associated with a significantly reduced risk of bleeding events in patients who underwent PCI, they note. However, these studies have so far reported only 1-year outcomes, and long-term results are not yet available.

The SMART-CHOICE trial compared two antiplatelet strategies – 3 months of DAPT followed by long-term P2Y12 inhibitor monotherapy (mainly with clopidogrel) or prolonged DAPT for 12 months or longer – in 2,993 patients who had undergone PCI with a drug-eluting stent. Results at 12 months showed a similar rate of ischemic events with both strategies but a lower rate of bleeding in the group that received shortened DAPT.

The SMART-CHOICE investigators now report the 3-year results showing similar outcomes.

At 3 years, the primary endpoint, a composite of all-cause death, myocardial infarction, or stroke, had occurred in 6.3% of the shortened DAPT group and 6.1% in the prolonged DAPT group, giving a hazard ratio of 1.06 (95% confidence interval, 0.79-1.44).

But in the shortened DAPT group, the risk of bleeding was reduced. Bleeding Academic Research Consortium (BARC) types 2-5 bleeding had occurred in 3.2% of the shortened DAPT group and in 8.2% of the prolonged DAPT group (hazard ratio, 0.39; 95% CI, 0.28-0.55). Major bleeding, BARC types 3-5, occurred in 1.2% of the shortened DAPT group and in 2.4% of the prolonged DAPT group (HR, 0.56; 95% CI 0.31-0.99).

The landmark analyses between 3 months and 3 years and per-protocol analyses showed consistent results.

The researchers point out that this is the first trial to report on the long-term safety and efficacy of P2Y12-inhibitor monotherapy as long-term maintenance therapy for stable patients treated with PCI.

“Especially considering that extended DAPT significantly reduced the risks of ischemic events compared with aspirin monotherapy in a couple of trials, comparison between P2Y12-inhibitor monotherapy and prolonged DAPT for recurrent ischemic events over a longer period beyond 1 year is of great importance,” they say.

They cite two other trials – HOST-EXAM and GLOBAL LEADERS – which have shown P2Y12-inhibitor monotherapy to be superior to aspirin monotherapy in preventing both ischemic and bleeding events during the long-term maintenance period after PCI.

“Combining the results of the current study, HOST-EXAM trial, and landmark analysis of the GLOBAL LEADERS trial, long-term P2Y12-inhibitor monotherapy after a minimum period of DAPT might be the most reliable option from among aspirin monotherapy, P2Y12 monotherapy, and extended DAPT for maintenance therapy after stabilizing patients who have undergone PCI with a current-generation DES,” they conclude.

They note that the American College of Cardiology/American Heart Association/Society for Cardiovascular Angiography and Interventions guidelines for coronary artery revascularization newly recommends a shorter course of DAPT followed by P2Y12 monotherapy as a class IIa indication. The recommendation is based on results of five large, randomized clinical trials, including SMART-CHOICE, TWILIGHT, STOPDAPT-2, TICO, and GLOBAL LEADERS.

“The current results of extended follow-up from the SMART-CHOICE trial support evidence of aspirin-dropping strategy with indefinite use of P2Y12 inhibitor after minimum use of DAPT in patients who underwent PCI,” they say.

They point out that two further trials, A-CLOSE in high-risk patients and SMART-CHOICE III, will be helpful to confirm these findings.
 

P2Y12-inhibitor monotherapy ‘attractive concept’

In an accompanying editor’s note, Ajay Kirtane, MD, Columbia University Irving Medical Center/New York–Presbyterian Hospital, New York, and Roxana Mehran, MD, Icahn School of Medicine at Mount Sinai and the Cardiovascular Research Foundation, New York, note that current guidelines recommend 3-6 months of DAPT following PCI with current-generation drug-eluting stents in stable patients and 6-12 months or longer for those with acute coronary syndromes. For patients at higher risk of bleeding, even shorter DAPT durations can be considered on a case-by-case basis.

Historically, the component of DAPT subject to discontinuation decisions was the P2Y12 inhibitor (clopidogrel, prasugrel, or ticagrelor), but more recent trials have further explored whether discontinuation of the aspirin component of DAPT can mitigate bleeding while preserving anti-ischemic efficacy.

The editorialists explain that the concept of P2Y1-inhibitor monotherapy is attractive because it may optimize antiplatelet effects through a single agent that can avoid the gastrointestinal toxicity of aspirin as well as the increased bleeding that comes with combing multiple antithrombotic agents.

They suggest that the long-term results from the SMART-CHOICE trial “should lead clinicians to consider a strategy of monotherapy after a short period of DAPT as a viable one to mitigate bleeding risk,” although they also point out that SMART-CHOICE was underpowered to rigorously assess ischemic differences, so caution is warranted.

“For patients at greatest risk for recurrent ischemic events, the role of continued DAPT is always an option, but these data (and other consistent trials) give clinicians more options to pursue individualized treatment decisions,” they write.

“To some, the continually moving field of post-PCI antiplatelet therapy has provided too many choices, which can at times be dizzying. To us, every patient is different, and thoughtful evidence-based consideration is increasingly possible for many of our treatment decisions,” they conclude.

The SMART-CHOICE study was supported by unrestricted grants from the Korean Society of Interventional Cardiology, Abbott Vascular, Biotronik, and Boston Scientific.

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

Shortening the duration of dual-antiplatelet therapy (DAPT) and continuing with a P2Y12 inhibitor alone after percutaneous coronary intervention (PCI) was associated with a similar rate of ischemic events but with less bleeding than prolonged DAPT after 3 years of follow-up in the SMART-CHOICE trial.

“The current results of extended follow-up from the SMART-CHOICE trial support evidence of an aspirin dropping strategy with indefinite use of P2Y12 inhibitor after minimum use of DAPT in patients who underwent PCI,” the investigators, with lead author Ki Hong Choi, MD, division of cardiology, department of medicine, Samsung Medical Center, Sungkyunkwan University, Seoul, South Korea, conclude.

The 3-year results from the study were published online in JAMA Cardiology.

The authors explain that although dual therapy with aspirin and a P2Y12 inhibitor after PCI with a drug-eluting stent (DES) is crucial to reduce the risk of ischemic events, it raises concerns about increased risk of bleeding, and the antiplatelet strategy after PCI is currently shifting to reduce the duration of DAPT.

Several recent randomized studies have consistently shown that a short duration of DAPT (1-3 months) followed by P2Y12 inhibitor monotherapy had ischemia protection effects comparable with that of DAPT of longer duration, and it was associated with a significantly reduced risk of bleeding events in patients who underwent PCI, they note. However, these studies have so far reported only 1-year outcomes, and long-term results are not yet available.

The SMART-CHOICE trial compared two antiplatelet strategies – 3 months of DAPT followed by long-term P2Y12 inhibitor monotherapy (mainly with clopidogrel) or prolonged DAPT for 12 months or longer – in 2,993 patients who had undergone PCI with a drug-eluting stent. Results at 12 months showed a similar rate of ischemic events with both strategies but a lower rate of bleeding in the group that received shortened DAPT.

The SMART-CHOICE investigators now report the 3-year results showing similar outcomes.

At 3 years, the primary endpoint, a composite of all-cause death, myocardial infarction, or stroke, had occurred in 6.3% of the shortened DAPT group and 6.1% in the prolonged DAPT group, giving a hazard ratio of 1.06 (95% confidence interval, 0.79-1.44).

But in the shortened DAPT group, the risk of bleeding was reduced. Bleeding Academic Research Consortium (BARC) types 2-5 bleeding had occurred in 3.2% of the shortened DAPT group and in 8.2% of the prolonged DAPT group (hazard ratio, 0.39; 95% CI, 0.28-0.55). Major bleeding, BARC types 3-5, occurred in 1.2% of the shortened DAPT group and in 2.4% of the prolonged DAPT group (HR, 0.56; 95% CI 0.31-0.99).

The landmark analyses between 3 months and 3 years and per-protocol analyses showed consistent results.

The researchers point out that this is the first trial to report on the long-term safety and efficacy of P2Y12-inhibitor monotherapy as long-term maintenance therapy for stable patients treated with PCI.

“Especially considering that extended DAPT significantly reduced the risks of ischemic events compared with aspirin monotherapy in a couple of trials, comparison between P2Y12-inhibitor monotherapy and prolonged DAPT for recurrent ischemic events over a longer period beyond 1 year is of great importance,” they say.

They cite two other trials – HOST-EXAM and GLOBAL LEADERS – which have shown P2Y12-inhibitor monotherapy to be superior to aspirin monotherapy in preventing both ischemic and bleeding events during the long-term maintenance period after PCI.

“Combining the results of the current study, HOST-EXAM trial, and landmark analysis of the GLOBAL LEADERS trial, long-term P2Y12-inhibitor monotherapy after a minimum period of DAPT might be the most reliable option from among aspirin monotherapy, P2Y12 monotherapy, and extended DAPT for maintenance therapy after stabilizing patients who have undergone PCI with a current-generation DES,” they conclude.

They note that the American College of Cardiology/American Heart Association/Society for Cardiovascular Angiography and Interventions guidelines for coronary artery revascularization newly recommends a shorter course of DAPT followed by P2Y12 monotherapy as a class IIa indication. The recommendation is based on results of five large, randomized clinical trials, including SMART-CHOICE, TWILIGHT, STOPDAPT-2, TICO, and GLOBAL LEADERS.

“The current results of extended follow-up from the SMART-CHOICE trial support evidence of aspirin-dropping strategy with indefinite use of P2Y12 inhibitor after minimum use of DAPT in patients who underwent PCI,” they say.

They point out that two further trials, A-CLOSE in high-risk patients and SMART-CHOICE III, will be helpful to confirm these findings.
 

P2Y12-inhibitor monotherapy ‘attractive concept’

In an accompanying editor’s note, Ajay Kirtane, MD, Columbia University Irving Medical Center/New York–Presbyterian Hospital, New York, and Roxana Mehran, MD, Icahn School of Medicine at Mount Sinai and the Cardiovascular Research Foundation, New York, note that current guidelines recommend 3-6 months of DAPT following PCI with current-generation drug-eluting stents in stable patients and 6-12 months or longer for those with acute coronary syndromes. For patients at higher risk of bleeding, even shorter DAPT durations can be considered on a case-by-case basis.

Historically, the component of DAPT subject to discontinuation decisions was the P2Y12 inhibitor (clopidogrel, prasugrel, or ticagrelor), but more recent trials have further explored whether discontinuation of the aspirin component of DAPT can mitigate bleeding while preserving anti-ischemic efficacy.

The editorialists explain that the concept of P2Y1-inhibitor monotherapy is attractive because it may optimize antiplatelet effects through a single agent that can avoid the gastrointestinal toxicity of aspirin as well as the increased bleeding that comes with combing multiple antithrombotic agents.

They suggest that the long-term results from the SMART-CHOICE trial “should lead clinicians to consider a strategy of monotherapy after a short period of DAPT as a viable one to mitigate bleeding risk,” although they also point out that SMART-CHOICE was underpowered to rigorously assess ischemic differences, so caution is warranted.

“For patients at greatest risk for recurrent ischemic events, the role of continued DAPT is always an option, but these data (and other consistent trials) give clinicians more options to pursue individualized treatment decisions,” they write.

“To some, the continually moving field of post-PCI antiplatelet therapy has provided too many choices, which can at times be dizzying. To us, every patient is different, and thoughtful evidence-based consideration is increasingly possible for many of our treatment decisions,” they conclude.

The SMART-CHOICE study was supported by unrestricted grants from the Korean Society of Interventional Cardiology, Abbott Vascular, Biotronik, and Boston Scientific.

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

Drinking two to three daily cups of – ground, instant, or decaffeinated – is associated with significant reductions in new cardiovascular disease (CVD) and mortality risk, compared with avoiding coffee, a new analysis of the prospective UK Biobank suggests.

Ground and instant coffee, but not decaffeinated coffee, also was associated with reduced risk of new-onset arrhythmia, including atrial fibrillation.

Visual_Intermezzo/iStock/Getty Images Plus

“Our study is the first to look at differences in coffee subtypes to tease out important differences which may explain some of the mechanisms through which coffee works,” Peter M. Kistler, MD, of the Alfred Hospital and Baker Heart and Diabetes Institute, Melbourne, Australia, told this news organization.

“Daily coffee intake should not be discouraged by physicians but rather considered part of a healthy diet,” Dr. Kistler said.

“This study supports that coffee is safe and even potentially beneficial, which is consistent with most of the prior evidence,” Carl “Chip” Lavie, MD, who wasn’t involved in the study, told this news organization.

“We do not prescribe coffee to patients, but for the majority who like coffee, they can be encouraged it is fine to take a few cups daily,” said Dr. Lavie, with the Ochsner Heart and Vascular Institute in New Orleans.

The study was published online in the European Journal of Preventive Cardiology.

 

Clear cardiovascular benefits

A total of 449,563 UK Biobank participants (median age 58 years; 55% women), who were free of arrhythmias or other CVD at baseline, reported in questionnaires their level of daily coffee intake and preferred type of coffee.

During more than 12.5 years of follow-up, 27,809 participants (6.2%) died.

Drinking one to five cups per day of ground or instant coffee (but not decaffeinated coffee) was associated with a significant reduction in incident arrhythmia. The lowest risk was with four to five cups per day for ground coffee (hazard ratio [HR] 0.83; 95% confidence interval [CI], 0.76-0.91; P < .0001) and two to three cups per day for instant coffee (HR, 0.88; 95% CI, 0.85-0.92; P < .0001).

Habitual coffee drinking of up to five cups perday was also associated with significant reductions in the risk of incident CVD, when compared with nondrinkers.

Significant reductions in the risk of incident coronary heart disease (CHD) were associated with habitual coffee intake of up to five cups per day, with the lowest risk for CHD observed in those who consumed two to three cups per day (HR 0.89; 95% CI, 0.86-0.91; P < .0001).

Coffee consumption at all levels was linked to significant reduction in the risk of congestive cardiac failure (CCF) and ischemic stroke. The lowest risks were observed in those who consumed two to three cups per day, with HR, 0.83 (95% CI, 0.79-0.87; P < .0001) for CCF and HR, 0.84 (95% CI, 0.78-0.90; P < .0001) for ischemic stroke.

Death from any cause was significantly reduced for all coffee subtypes, with the greatest risk reduction seen with two to three cups per day for decaffeinated (HR, 0.86; 95% CI, 0.81-0.91; P < .0001); ground (HR, 0.73; 95% CI, 0.69-0.78; P < .0001); and instant coffee (HR, 0.89; 95% CI, 0.86-0.93; P < .0001).

“Coffee consumption is associated with cardiovascular benefits and should not empirically be discontinued in those with underlying heart rhythm disorders or cardiovascular disease,” Dr. Kistler told this news organization.

Plausible mechanisms

There are a number of proposed mechanisms to explain the benefits of coffee on CVD.

“Caffeine has antiarrhythmic properties through adenosine A1 and A2A receptor inhibition, hence the difference in effects of decaf vs. full-strength coffee on heart rhythm disorders,” Dr. Kistler explained.

Coffee has vasodilatory effects and coffee also contains antioxidant polyphenols, which reduce oxidative stress and modulate metabolism.

“The explanation for improved survival with habitual coffee consumption remains unclear,” Dr. Kistler said.

“Putative mechanisms include improved endothelial function, circulating antioxidants, improved insulin sensitivity, and reduced inflammation. Another potential mechanism includes the beneficial effects of coffee on metabolic syndrome,” he said.

“Caffeine has a role in weight loss through inhibition of gut fatty acid absorption and increase in basal metabolic rate. Furthermore, coffee has been associated with a significantly lower incidence of type 2 diabetes mellitus,” Dr. Kistler added.
 

Direction of relationship unclear

Charlotte Mills, PhD, University of Reading, England, said this study “adds to the body of evidence from observational trials associating moderate coffee consumption with cardioprotection, which looks promising.”

However, with the observational design, it’s unclear “which direction the relationship goes – for example, does coffee make you healthy or do inherently healthier people consume coffee? Randomized controlled trials are needed to fully understand the relationship between coffee and health before recommendations can be made,” Dr. Mills told the UK nonprofit Science Media Centre.

Annette Creedon, PhD, nutrition scientist with the British Nutrition Foundation, said it’s possible that respondents over- or underestimated the amount of coffee that they were consuming at the start of the study when they self-reported their intake.

“It is therefore difficult to determine whether the outcomes can be directly associated with the behaviors in coffee consumption reported at the start of the study,” she told the Science Media Centre.

The study had no funding. Dr. Kistler has received funding from Abbott Medical for consultancy and speaking engagements and fellowship support from Biosense Webster. Dr. Lavie has no relevant disclosures. Dr. Mills has worked in collaboration with Nestle on research relating to coffee and health funded by UKRI. Dr. Creedon has reported no relevant financial relationships.

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

Drinking two to three daily cups of – ground, instant, or decaffeinated – is associated with significant reductions in new cardiovascular disease (CVD) and mortality risk, compared with avoiding coffee, a new analysis of the prospective UK Biobank suggests.

Ground and instant coffee, but not decaffeinated coffee, also was associated with reduced risk of new-onset arrhythmia, including atrial fibrillation.

Visual_Intermezzo/iStock/Getty Images Plus

“Our study is the first to look at differences in coffee subtypes to tease out important differences which may explain some of the mechanisms through which coffee works,” Peter M. Kistler, MD, of the Alfred Hospital and Baker Heart and Diabetes Institute, Melbourne, Australia, told this news organization.

“Daily coffee intake should not be discouraged by physicians but rather considered part of a healthy diet,” Dr. Kistler said.

“This study supports that coffee is safe and even potentially beneficial, which is consistent with most of the prior evidence,” Carl “Chip” Lavie, MD, who wasn’t involved in the study, told this news organization.

“We do not prescribe coffee to patients, but for the majority who like coffee, they can be encouraged it is fine to take a few cups daily,” said Dr. Lavie, with the Ochsner Heart and Vascular Institute in New Orleans.

The study was published online in the European Journal of Preventive Cardiology.

 

Clear cardiovascular benefits

A total of 449,563 UK Biobank participants (median age 58 years; 55% women), who were free of arrhythmias or other CVD at baseline, reported in questionnaires their level of daily coffee intake and preferred type of coffee.

During more than 12.5 years of follow-up, 27,809 participants (6.2%) died.

Drinking one to five cups per day of ground or instant coffee (but not decaffeinated coffee) was associated with a significant reduction in incident arrhythmia. The lowest risk was with four to five cups per day for ground coffee (hazard ratio [HR] 0.83; 95% confidence interval [CI], 0.76-0.91; P < .0001) and two to three cups per day for instant coffee (HR, 0.88; 95% CI, 0.85-0.92; P < .0001).

Habitual coffee drinking of up to five cups perday was also associated with significant reductions in the risk of incident CVD, when compared with nondrinkers.

Significant reductions in the risk of incident coronary heart disease (CHD) were associated with habitual coffee intake of up to five cups per day, with the lowest risk for CHD observed in those who consumed two to three cups per day (HR 0.89; 95% CI, 0.86-0.91; P < .0001).

Coffee consumption at all levels was linked to significant reduction in the risk of congestive cardiac failure (CCF) and ischemic stroke. The lowest risks were observed in those who consumed two to three cups per day, with HR, 0.83 (95% CI, 0.79-0.87; P < .0001) for CCF and HR, 0.84 (95% CI, 0.78-0.90; P < .0001) for ischemic stroke.

Death from any cause was significantly reduced for all coffee subtypes, with the greatest risk reduction seen with two to three cups per day for decaffeinated (HR, 0.86; 95% CI, 0.81-0.91; P < .0001); ground (HR, 0.73; 95% CI, 0.69-0.78; P < .0001); and instant coffee (HR, 0.89; 95% CI, 0.86-0.93; P < .0001).

“Coffee consumption is associated with cardiovascular benefits and should not empirically be discontinued in those with underlying heart rhythm disorders or cardiovascular disease,” Dr. Kistler told this news organization.

Plausible mechanisms

There are a number of proposed mechanisms to explain the benefits of coffee on CVD.

“Caffeine has antiarrhythmic properties through adenosine A1 and A2A receptor inhibition, hence the difference in effects of decaf vs. full-strength coffee on heart rhythm disorders,” Dr. Kistler explained.

Coffee has vasodilatory effects and coffee also contains antioxidant polyphenols, which reduce oxidative stress and modulate metabolism.

“The explanation for improved survival with habitual coffee consumption remains unclear,” Dr. Kistler said.

“Putative mechanisms include improved endothelial function, circulating antioxidants, improved insulin sensitivity, and reduced inflammation. Another potential mechanism includes the beneficial effects of coffee on metabolic syndrome,” he said.

“Caffeine has a role in weight loss through inhibition of gut fatty acid absorption and increase in basal metabolic rate. Furthermore, coffee has been associated with a significantly lower incidence of type 2 diabetes mellitus,” Dr. Kistler added.
 

Direction of relationship unclear

Charlotte Mills, PhD, University of Reading, England, said this study “adds to the body of evidence from observational trials associating moderate coffee consumption with cardioprotection, which looks promising.”

However, with the observational design, it’s unclear “which direction the relationship goes – for example, does coffee make you healthy or do inherently healthier people consume coffee? Randomized controlled trials are needed to fully understand the relationship between coffee and health before recommendations can be made,” Dr. Mills told the UK nonprofit Science Media Centre.

Annette Creedon, PhD, nutrition scientist with the British Nutrition Foundation, said it’s possible that respondents over- or underestimated the amount of coffee that they were consuming at the start of the study when they self-reported their intake.

“It is therefore difficult to determine whether the outcomes can be directly associated with the behaviors in coffee consumption reported at the start of the study,” she told the Science Media Centre.

The study had no funding. Dr. Kistler has received funding from Abbott Medical for consultancy and speaking engagements and fellowship support from Biosense Webster. Dr. Lavie has no relevant disclosures. Dr. Mills has worked in collaboration with Nestle on research relating to coffee and health funded by UKRI. Dr. Creedon has reported no relevant financial relationships.

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

Drinking two to three daily cups of – ground, instant, or decaffeinated – is associated with significant reductions in new cardiovascular disease (CVD) and mortality risk, compared with avoiding coffee, a new analysis of the prospective UK Biobank suggests.

Ground and instant coffee, but not decaffeinated coffee, also was associated with reduced risk of new-onset arrhythmia, including atrial fibrillation.

Visual_Intermezzo/iStock/Getty Images Plus

“Our study is the first to look at differences in coffee subtypes to tease out important differences which may explain some of the mechanisms through which coffee works,” Peter M. Kistler, MD, of the Alfred Hospital and Baker Heart and Diabetes Institute, Melbourne, Australia, told this news organization.

“Daily coffee intake should not be discouraged by physicians but rather considered part of a healthy diet,” Dr. Kistler said.

“This study supports that coffee is safe and even potentially beneficial, which is consistent with most of the prior evidence,” Carl “Chip” Lavie, MD, who wasn’t involved in the study, told this news organization.

“We do not prescribe coffee to patients, but for the majority who like coffee, they can be encouraged it is fine to take a few cups daily,” said Dr. Lavie, with the Ochsner Heart and Vascular Institute in New Orleans.

The study was published online in the European Journal of Preventive Cardiology.

 

Clear cardiovascular benefits

A total of 449,563 UK Biobank participants (median age 58 years; 55% women), who were free of arrhythmias or other CVD at baseline, reported in questionnaires their level of daily coffee intake and preferred type of coffee.

During more than 12.5 years of follow-up, 27,809 participants (6.2%) died.

Drinking one to five cups per day of ground or instant coffee (but not decaffeinated coffee) was associated with a significant reduction in incident arrhythmia. The lowest risk was with four to five cups per day for ground coffee (hazard ratio [HR] 0.83; 95% confidence interval [CI], 0.76-0.91; P < .0001) and two to three cups per day for instant coffee (HR, 0.88; 95% CI, 0.85-0.92; P < .0001).

Habitual coffee drinking of up to five cups perday was also associated with significant reductions in the risk of incident CVD, when compared with nondrinkers.

Significant reductions in the risk of incident coronary heart disease (CHD) were associated with habitual coffee intake of up to five cups per day, with the lowest risk for CHD observed in those who consumed two to three cups per day (HR 0.89; 95% CI, 0.86-0.91; P < .0001).

Coffee consumption at all levels was linked to significant reduction in the risk of congestive cardiac failure (CCF) and ischemic stroke. The lowest risks were observed in those who consumed two to three cups per day, with HR, 0.83 (95% CI, 0.79-0.87; P < .0001) for CCF and HR, 0.84 (95% CI, 0.78-0.90; P < .0001) for ischemic stroke.

Death from any cause was significantly reduced for all coffee subtypes, with the greatest risk reduction seen with two to three cups per day for decaffeinated (HR, 0.86; 95% CI, 0.81-0.91; P < .0001); ground (HR, 0.73; 95% CI, 0.69-0.78; P < .0001); and instant coffee (HR, 0.89; 95% CI, 0.86-0.93; P < .0001).

“Coffee consumption is associated with cardiovascular benefits and should not empirically be discontinued in those with underlying heart rhythm disorders or cardiovascular disease,” Dr. Kistler told this news organization.

Plausible mechanisms

There are a number of proposed mechanisms to explain the benefits of coffee on CVD.

“Caffeine has antiarrhythmic properties through adenosine A1 and A2A receptor inhibition, hence the difference in effects of decaf vs. full-strength coffee on heart rhythm disorders,” Dr. Kistler explained.

Coffee has vasodilatory effects and coffee also contains antioxidant polyphenols, which reduce oxidative stress and modulate metabolism.

“The explanation for improved survival with habitual coffee consumption remains unclear,” Dr. Kistler said.

“Putative mechanisms include improved endothelial function, circulating antioxidants, improved insulin sensitivity, and reduced inflammation. Another potential mechanism includes the beneficial effects of coffee on metabolic syndrome,” he said.

“Caffeine has a role in weight loss through inhibition of gut fatty acid absorption and increase in basal metabolic rate. Furthermore, coffee has been associated with a significantly lower incidence of type 2 diabetes mellitus,” Dr. Kistler added.
 

Direction of relationship unclear

Charlotte Mills, PhD, University of Reading, England, said this study “adds to the body of evidence from observational trials associating moderate coffee consumption with cardioprotection, which looks promising.”

However, with the observational design, it’s unclear “which direction the relationship goes – for example, does coffee make you healthy or do inherently healthier people consume coffee? Randomized controlled trials are needed to fully understand the relationship between coffee and health before recommendations can be made,” Dr. Mills told the UK nonprofit Science Media Centre.

Annette Creedon, PhD, nutrition scientist with the British Nutrition Foundation, said it’s possible that respondents over- or underestimated the amount of coffee that they were consuming at the start of the study when they self-reported their intake.

“It is therefore difficult to determine whether the outcomes can be directly associated with the behaviors in coffee consumption reported at the start of the study,” she told the Science Media Centre.

The study had no funding. Dr. Kistler has received funding from Abbott Medical for consultancy and speaking engagements and fellowship support from Biosense Webster. Dr. Lavie has no relevant disclosures. Dr. Mills has worked in collaboration with Nestle on research relating to coffee and health funded by UKRI. Dr. Creedon has reported no relevant financial relationships.

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

A look at the top cardiovascular disease (CVD) diagnoses in U.S. emergency departments (EDs) suggests that many heart-related emergencies are due to poorly controlled high blood pressure.

In a study of more than 20 million ED visits, about one-third of CVD-related ED visits in the United States were for hypertension-related conditions.

Overall, 13% of ED visits, representing more than 2.7 million individuals, were for essential hypertension.

Nationwide sample

The researchers studied more than 20.6 million ED encounters in adults with a primary CVD diagnosis using data from the Nationwide Emergency Department Sample between 2016 and 2018.

In the sample, 49% were women, and the median age was 67 years. Men had poorer overall baseline cardiometabolic profiles, but women had higher rates of obesity, hypertension, and cerebrovascular disease. The majority had Medicare or Medicaid insurance.

In women, essential hypertension was the most common reason for an ED visit (16%), followed by hypertensive heart or kidney disease (14%) and atrial fibrillation (AF)/flutter (10%).

In men, the top three reasons were hypertensive heart or kidney disease (15%), essential hypertension (11%), and acute myocardial infarction (AMI, 11%).

On presentation, women were significantly more likely to have essential hypertension, hypertensive crisis, AF/flutter, supraventricular tachycardia, pulmonary embolism, or ischemic stroke, while men were more likely to have AMI, or cardiac arrest.

“Previous studies have shown sex differences in patterns of CVD among hospitalized patients,” Dr. Mamas noted. “However, examining CVD encounters in the ED provides a more complete picture of the cardiovascular healthcare needs of men and women, as it captures encounters prior to hospitalization.”

He noted that previous studies of CVD emergency visits are limited to suspected MI visits. “Therefore, this analysis of 15 CVD conditions helps to better understand the full spectrum of acute CVD needs, including sex disparities in hospitalization and risk of death,” Dr. Mamas said.
 

Sex differences in outcomes

The study found that outcomes from the emergency CVD visits were slightly different for men and women.

Overall, women were less likely than were men to die (3.3% vs. 4.3%) or be hospitalized (49.1% vs. 52.3%) after an ED visit for CVD. The difference may be due to women’s generally lower-risk diagnoses, Dr. Mamas said, but there could be an underestimation of deaths in women.

In logistic regression models adjusted for baseline covariates, women with intracranial hemorrhage (ICH) had a higher risk of being admitted to hospital or dying compared with men with ICH.

Men were more likely to die if they presented with hypertensive heart or kidney disease, AF/flutter, AMI or cardiac arrest, the researchers found. 

“We did not track deaths outside of the hospital setting,” Dr. Mamas pointed out. Given past evidence that women are more likely to be inappropriately discharged from the ED, and strong evidence for the systemic undertreatment of women, further study is warranted to track outcomes beyond the ED visit,” he added.

The researchers called for further research into understanding the underlying factors driving the differences in CVD patterns and outcomes between men and women.

Reached for comment, Maryann McLaughlin, MD, a cardiologist at Mount Sinai Hospital, New York, said: “Hypertension is a silent killer” and this study “reiterates that people need to get their blood pressure checked more regularly.

“In the very least, if they do present to the hospital as not feeling well or whatever it is, and they are identified as having high blood pressure, that’s an important opportunity to really teach them about hypertension and have them follow-up with it,” Dr. McLaughlin told this news organization. 

The study was supported by Health Data Research UK. Dr. Keele and Dr. McLaughlin have reported no relevant financial relationships.

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

A look at the top cardiovascular disease (CVD) diagnoses in U.S. emergency departments (EDs) suggests that many heart-related emergencies are due to poorly controlled high blood pressure.

In a study of more than 20 million ED visits, about one-third of CVD-related ED visits in the United States were for hypertension-related conditions.

Overall, 13% of ED visits, representing more than 2.7 million individuals, were for essential hypertension.

Nationwide sample

The researchers studied more than 20.6 million ED encounters in adults with a primary CVD diagnosis using data from the Nationwide Emergency Department Sample between 2016 and 2018.

In the sample, 49% were women, and the median age was 67 years. Men had poorer overall baseline cardiometabolic profiles, but women had higher rates of obesity, hypertension, and cerebrovascular disease. The majority had Medicare or Medicaid insurance.

In women, essential hypertension was the most common reason for an ED visit (16%), followed by hypertensive heart or kidney disease (14%) and atrial fibrillation (AF)/flutter (10%).

In men, the top three reasons were hypertensive heart or kidney disease (15%), essential hypertension (11%), and acute myocardial infarction (AMI, 11%).

On presentation, women were significantly more likely to have essential hypertension, hypertensive crisis, AF/flutter, supraventricular tachycardia, pulmonary embolism, or ischemic stroke, while men were more likely to have AMI, or cardiac arrest.

“Previous studies have shown sex differences in patterns of CVD among hospitalized patients,” Dr. Mamas noted. “However, examining CVD encounters in the ED provides a more complete picture of the cardiovascular healthcare needs of men and women, as it captures encounters prior to hospitalization.”

He noted that previous studies of CVD emergency visits are limited to suspected MI visits. “Therefore, this analysis of 15 CVD conditions helps to better understand the full spectrum of acute CVD needs, including sex disparities in hospitalization and risk of death,” Dr. Mamas said.
 

Sex differences in outcomes

The study found that outcomes from the emergency CVD visits were slightly different for men and women.

Overall, women were less likely than were men to die (3.3% vs. 4.3%) or be hospitalized (49.1% vs. 52.3%) after an ED visit for CVD. The difference may be due to women’s generally lower-risk diagnoses, Dr. Mamas said, but there could be an underestimation of deaths in women.

In logistic regression models adjusted for baseline covariates, women with intracranial hemorrhage (ICH) had a higher risk of being admitted to hospital or dying compared with men with ICH.

Men were more likely to die if they presented with hypertensive heart or kidney disease, AF/flutter, AMI or cardiac arrest, the researchers found. 

“We did not track deaths outside of the hospital setting,” Dr. Mamas pointed out. Given past evidence that women are more likely to be inappropriately discharged from the ED, and strong evidence for the systemic undertreatment of women, further study is warranted to track outcomes beyond the ED visit,” he added.

The researchers called for further research into understanding the underlying factors driving the differences in CVD patterns and outcomes between men and women.

Reached for comment, Maryann McLaughlin, MD, a cardiologist at Mount Sinai Hospital, New York, said: “Hypertension is a silent killer” and this study “reiterates that people need to get their blood pressure checked more regularly.

“In the very least, if they do present to the hospital as not feeling well or whatever it is, and they are identified as having high blood pressure, that’s an important opportunity to really teach them about hypertension and have them follow-up with it,” Dr. McLaughlin told this news organization. 

The study was supported by Health Data Research UK. Dr. Keele and Dr. McLaughlin have reported no relevant financial relationships.

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

A look at the top cardiovascular disease (CVD) diagnoses in U.S. emergency departments (EDs) suggests that many heart-related emergencies are due to poorly controlled high blood pressure.

In a study of more than 20 million ED visits, about one-third of CVD-related ED visits in the United States were for hypertension-related conditions.

Overall, 13% of ED visits, representing more than 2.7 million individuals, were for essential hypertension.

Nationwide sample

The researchers studied more than 20.6 million ED encounters in adults with a primary CVD diagnosis using data from the Nationwide Emergency Department Sample between 2016 and 2018.

In the sample, 49% were women, and the median age was 67 years. Men had poorer overall baseline cardiometabolic profiles, but women had higher rates of obesity, hypertension, and cerebrovascular disease. The majority had Medicare or Medicaid insurance.

In women, essential hypertension was the most common reason for an ED visit (16%), followed by hypertensive heart or kidney disease (14%) and atrial fibrillation (AF)/flutter (10%).

In men, the top three reasons were hypertensive heart or kidney disease (15%), essential hypertension (11%), and acute myocardial infarction (AMI, 11%).

On presentation, women were significantly more likely to have essential hypertension, hypertensive crisis, AF/flutter, supraventricular tachycardia, pulmonary embolism, or ischemic stroke, while men were more likely to have AMI, or cardiac arrest.

“Previous studies have shown sex differences in patterns of CVD among hospitalized patients,” Dr. Mamas noted. “However, examining CVD encounters in the ED provides a more complete picture of the cardiovascular healthcare needs of men and women, as it captures encounters prior to hospitalization.”

He noted that previous studies of CVD emergency visits are limited to suspected MI visits. “Therefore, this analysis of 15 CVD conditions helps to better understand the full spectrum of acute CVD needs, including sex disparities in hospitalization and risk of death,” Dr. Mamas said.
 

Sex differences in outcomes

The study found that outcomes from the emergency CVD visits were slightly different for men and women.

Overall, women were less likely than were men to die (3.3% vs. 4.3%) or be hospitalized (49.1% vs. 52.3%) after an ED visit for CVD. The difference may be due to women’s generally lower-risk diagnoses, Dr. Mamas said, but there could be an underestimation of deaths in women.

In logistic regression models adjusted for baseline covariates, women with intracranial hemorrhage (ICH) had a higher risk of being admitted to hospital or dying compared with men with ICH.

Men were more likely to die if they presented with hypertensive heart or kidney disease, AF/flutter, AMI or cardiac arrest, the researchers found. 

“We did not track deaths outside of the hospital setting,” Dr. Mamas pointed out. Given past evidence that women are more likely to be inappropriately discharged from the ED, and strong evidence for the systemic undertreatment of women, further study is warranted to track outcomes beyond the ED visit,” he added.

The researchers called for further research into understanding the underlying factors driving the differences in CVD patterns and outcomes between men and women.

Reached for comment, Maryann McLaughlin, MD, a cardiologist at Mount Sinai Hospital, New York, said: “Hypertension is a silent killer” and this study “reiterates that people need to get their blood pressure checked more regularly.

“In the very least, if they do present to the hospital as not feeling well or whatever it is, and they are identified as having high blood pressure, that’s an important opportunity to really teach them about hypertension and have them follow-up with it,” Dr. McLaughlin told this news organization. 

The study was supported by Health Data Research UK. Dr. Keele and Dr. McLaughlin have reported no relevant financial relationships.

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

The Amplatzer Amulet (Abbott) and first-generation Watchman 2.5 (Boston Scientific) devices provide relatively comparable results out to 3 years after left atrial appendage occlusion (LAAO), longer follow-up from the Amplatzer Amulet Left Atrial Appendage Occluder Versus Watchman Device for Stroke Prophylaxis (Amulet IDE) trial shows.

“The dual-seal Amplatzer Amulet left atrial appendage occluder continued to demonstrate safety and effectiveness through 3 years,” principal investigator Dhanunjaya Lakkireddy, MD, said in a late-breaking session at the recent Transcatheter Cardiovascular Therapeutics annual meeting.

Preliminary results, reported last year, showed that procedural complications were higher with the Amplatzer but that it provided superior closure of the left atrial appendage (LAA) at 45 days and was noninferior with respect to safety at 12 months and efficacy at 18 months.

Amulet IDE is the largest head-to-head comparison of the two devices, enrolling 1,878 high-risk patients with nonvalvular atrial fibrillation undergoing LAA closure to reduce the risk of stroke.

Three-year follow-up was higher with the Amulet device than with the Watchman, at 721 vs. 659 patients, driven by increased deaths (85 vs. 63) and withdrawals (50 vs. 23) in the Watchman group within 18 months, noted Dr. Lakkireddy, Kansas City Heart Rhythm Institute and Research Foundation, Overland Park, Kan.

Use of oral anticoagulation was higher in the Watchman group at 6 months (2.8% vs. 4.7%; P = .04), 18 months (3.1% vs. 5.6%; P = .01), and 3 years (3.7% vs. 7.3%; P < .01).

This was primarily driven by more late device-related thrombus (DRT) after 6 months with the Watchman device than with the Amulet occluder (23 vs. 10). “Perhaps the dual-closure mechanism of the Amulet explains this fundamental difference, where you have a nice smooth disc that covers the ostium,” he posited.

At 3 years, rates of cardiovascular death trended lower with Amulet than with Watchman (6.6% vs. 8.5%; P = .14), as did all-cause deaths (14.6% vs. 17.9%; P = .07).

Most cardiovascular deaths in the Amulet group were not preceded by a device factor, whereas DRT (1 vs. 4) and peridevice leak 3 mm or more (5 vs. 15) frequently preceded these deaths in the Watchman group, Dr. Lakkireddy observed. No pericardial effusion-related deaths occurred in either group.

Major bleeding, however, trended higher for the Amulet, at 16.1%, compared with 14.7% for the Watchman (P = .46). Ischemic stroke and systemic embolic rates also trended higher for Amulet, at 5%, and 4.6% for Watchman.

The protocol recommended aspirin only for both groups after 6 months. None of the 29 Amulet and 3 of the 29 Watchman patients with an ischemic stroke were on oral anticoagulation at the time of the stroke.

Device factors, however, frequently preceded ischemic strokes in the Watchman group, Dr. Lakkireddy said. DRT occurred in 1 patient with Amulet and 2 patients with Watchman and peridevice leak in 3 with Amulet and 15 with Watchman. “Again, the peridevice leak issue really stands out as an important factor,” he said at the meeting, which was sponsored by the Cardiovascular Research Foundation.

Based on “data from the large trials, it’s clearly evident that the presence of peridevice leak significantly raises the risk of stroke in follow-up,” he said. “So, attention has to be paid to the choice of the device and how we can mitigate the risk of peridevice leaks in these patients.”

The composite of stroke, systemic embolism, and cardiovascular death occurred in 11.1% of patients with Amulet and 12.7% with Watchman (P = .31).

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

The Amplatzer Amulet (Abbott) and first-generation Watchman 2.5 (Boston Scientific) devices provide relatively comparable results out to 3 years after left atrial appendage occlusion (LAAO), longer follow-up from the Amplatzer Amulet Left Atrial Appendage Occluder Versus Watchman Device for Stroke Prophylaxis (Amulet IDE) trial shows.

“The dual-seal Amplatzer Amulet left atrial appendage occluder continued to demonstrate safety and effectiveness through 3 years,” principal investigator Dhanunjaya Lakkireddy, MD, said in a late-breaking session at the recent Transcatheter Cardiovascular Therapeutics annual meeting.

Preliminary results, reported last year, showed that procedural complications were higher with the Amplatzer but that it provided superior closure of the left atrial appendage (LAA) at 45 days and was noninferior with respect to safety at 12 months and efficacy at 18 months.

Amulet IDE is the largest head-to-head comparison of the two devices, enrolling 1,878 high-risk patients with nonvalvular atrial fibrillation undergoing LAA closure to reduce the risk of stroke.

Three-year follow-up was higher with the Amulet device than with the Watchman, at 721 vs. 659 patients, driven by increased deaths (85 vs. 63) and withdrawals (50 vs. 23) in the Watchman group within 18 months, noted Dr. Lakkireddy, Kansas City Heart Rhythm Institute and Research Foundation, Overland Park, Kan.

Use of oral anticoagulation was higher in the Watchman group at 6 months (2.8% vs. 4.7%; P = .04), 18 months (3.1% vs. 5.6%; P = .01), and 3 years (3.7% vs. 7.3%; P < .01).

This was primarily driven by more late device-related thrombus (DRT) after 6 months with the Watchman device than with the Amulet occluder (23 vs. 10). “Perhaps the dual-closure mechanism of the Amulet explains this fundamental difference, where you have a nice smooth disc that covers the ostium,” he posited.

At 3 years, rates of cardiovascular death trended lower with Amulet than with Watchman (6.6% vs. 8.5%; P = .14), as did all-cause deaths (14.6% vs. 17.9%; P = .07).

Most cardiovascular deaths in the Amulet group were not preceded by a device factor, whereas DRT (1 vs. 4) and peridevice leak 3 mm or more (5 vs. 15) frequently preceded these deaths in the Watchman group, Dr. Lakkireddy observed. No pericardial effusion-related deaths occurred in either group.

Major bleeding, however, trended higher for the Amulet, at 16.1%, compared with 14.7% for the Watchman (P = .46). Ischemic stroke and systemic embolic rates also trended higher for Amulet, at 5%, and 4.6% for Watchman.

The protocol recommended aspirin only for both groups after 6 months. None of the 29 Amulet and 3 of the 29 Watchman patients with an ischemic stroke were on oral anticoagulation at the time of the stroke.

Device factors, however, frequently preceded ischemic strokes in the Watchman group, Dr. Lakkireddy said. DRT occurred in 1 patient with Amulet and 2 patients with Watchman and peridevice leak in 3 with Amulet and 15 with Watchman. “Again, the peridevice leak issue really stands out as an important factor,” he said at the meeting, which was sponsored by the Cardiovascular Research Foundation.

Based on “data from the large trials, it’s clearly evident that the presence of peridevice leak significantly raises the risk of stroke in follow-up,” he said. “So, attention has to be paid to the choice of the device and how we can mitigate the risk of peridevice leaks in these patients.”

The composite of stroke, systemic embolism, and cardiovascular death occurred in 11.1% of patients with Amulet and 12.7% with Watchman (P = .31).

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

The Amplatzer Amulet (Abbott) and first-generation Watchman 2.5 (Boston Scientific) devices provide relatively comparable results out to 3 years after left atrial appendage occlusion (LAAO), longer follow-up from the Amplatzer Amulet Left Atrial Appendage Occluder Versus Watchman Device for Stroke Prophylaxis (Amulet IDE) trial shows.

“The dual-seal Amplatzer Amulet left atrial appendage occluder continued to demonstrate safety and effectiveness through 3 years,” principal investigator Dhanunjaya Lakkireddy, MD, said in a late-breaking session at the recent Transcatheter Cardiovascular Therapeutics annual meeting.

Preliminary results, reported last year, showed that procedural complications were higher with the Amplatzer but that it provided superior closure of the left atrial appendage (LAA) at 45 days and was noninferior with respect to safety at 12 months and efficacy at 18 months.

Amulet IDE is the largest head-to-head comparison of the two devices, enrolling 1,878 high-risk patients with nonvalvular atrial fibrillation undergoing LAA closure to reduce the risk of stroke.

Three-year follow-up was higher with the Amulet device than with the Watchman, at 721 vs. 659 patients, driven by increased deaths (85 vs. 63) and withdrawals (50 vs. 23) in the Watchman group within 18 months, noted Dr. Lakkireddy, Kansas City Heart Rhythm Institute and Research Foundation, Overland Park, Kan.

Use of oral anticoagulation was higher in the Watchman group at 6 months (2.8% vs. 4.7%; P = .04), 18 months (3.1% vs. 5.6%; P = .01), and 3 years (3.7% vs. 7.3%; P < .01).

This was primarily driven by more late device-related thrombus (DRT) after 6 months with the Watchman device than with the Amulet occluder (23 vs. 10). “Perhaps the dual-closure mechanism of the Amulet explains this fundamental difference, where you have a nice smooth disc that covers the ostium,” he posited.

At 3 years, rates of cardiovascular death trended lower with Amulet than with Watchman (6.6% vs. 8.5%; P = .14), as did all-cause deaths (14.6% vs. 17.9%; P = .07).

Most cardiovascular deaths in the Amulet group were not preceded by a device factor, whereas DRT (1 vs. 4) and peridevice leak 3 mm or more (5 vs. 15) frequently preceded these deaths in the Watchman group, Dr. Lakkireddy observed. No pericardial effusion-related deaths occurred in either group.

Major bleeding, however, trended higher for the Amulet, at 16.1%, compared with 14.7% for the Watchman (P = .46). Ischemic stroke and systemic embolic rates also trended higher for Amulet, at 5%, and 4.6% for Watchman.

The protocol recommended aspirin only for both groups after 6 months. None of the 29 Amulet and 3 of the 29 Watchman patients with an ischemic stroke were on oral anticoagulation at the time of the stroke.

Device factors, however, frequently preceded ischemic strokes in the Watchman group, Dr. Lakkireddy said. DRT occurred in 1 patient with Amulet and 2 patients with Watchman and peridevice leak in 3 with Amulet and 15 with Watchman. “Again, the peridevice leak issue really stands out as an important factor,” he said at the meeting, which was sponsored by the Cardiovascular Research Foundation.

Based on “data from the large trials, it’s clearly evident that the presence of peridevice leak significantly raises the risk of stroke in follow-up,” he said. “So, attention has to be paid to the choice of the device and how we can mitigate the risk of peridevice leaks in these patients.”

The composite of stroke, systemic embolism, and cardiovascular death occurred in 11.1% of patients with Amulet and 12.7% with Watchman (P = .31).

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