Neurology

TOPLINE:

Stroke rates in Californians with sickle cell disease (SCD) have increased in both children and adults in the post-STOP era. The cumulative incidence of first ischemic stroke was 2.1% by age 20 and 13.5% by age 60.

METHODOLOGY:

• Researchers analyzed data from the California Department of Health Care Access and Innovation (HCAI), covering emergency department and hospitalization records from 1991 to 2019.
• A total of 7636 patients with SCD were included in the study cohort.
• Cumulative incidence and rates for primary and recurrent strokes and transient ischemic attacks (TIAs) were determined pre- and post STOP trial.
• Patients with SCD were identified using ICD-9 and ICD-10 codes, with specific criteria for inclusion based on hospitalization records.
• The study utilized Fine and Gray methodology to calculate cumulative incidence functions, accounting for the competing risk for death.

TAKEAWAY:

• The cumulative incidence of first ischemic stroke in patients with SCD was 2.1% by age 20 and 13.5% by age 60.
• Ischemic stroke rates increased significantly in children and adults in the 2010-2019 period, compared with the preceding decade.
• Risk factors for stroke and TIA included increasing age, hypertension, and hyperlipidemia.
• The study found a significant increase in rates of intracranial hemorrhage in adults aged 18-30 years and TIAs in children younger than 18 years from 2010 to 2019, compared with the prior decade.

IN PRACTICE:

“Neurovascular complications, including strokes and transient ischemic attacks (TIAs), are common and cause significant morbidity in individuals with sickle cell disease (SCD). The STOP trial (1998) established chronic transfusions as the standard of care for children with SCD at high risk for stroke,” the study’s authors wrote.

SOURCE:

This study was led by Olubusola B. Oluwole, MD, MS, University of Pittsburgh in Pennsylvania, and was published online in Blood.

LIMITATIONS:

This study’s reliance on administrative data may have introduced systematic errors, particularly with the transition from ICD-9 to ICD-10 codes. The lack of laboratory results and medication data in the HCAI database limited the ability to fully assess patient conditions and treatments. Additionally, the methodology changes in 2014 likely underreported death rates in people without PDD/EDU encounters in the calendar year preceding their death.

DISCLOSURES:

The authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Stroke rates in Californians with sickle cell disease (SCD) have increased in both children and adults in the post-STOP era. The cumulative incidence of first ischemic stroke was 2.1% by age 20 and 13.5% by age 60.

METHODOLOGY:

• Researchers analyzed data from the California Department of Health Care Access and Innovation (HCAI), covering emergency department and hospitalization records from 1991 to 2019.
• A total of 7636 patients with SCD were included in the study cohort.
• Cumulative incidence and rates for primary and recurrent strokes and transient ischemic attacks (TIAs) were determined pre- and post STOP trial.
• Patients with SCD were identified using ICD-9 and ICD-10 codes, with specific criteria for inclusion based on hospitalization records.
• The study utilized Fine and Gray methodology to calculate cumulative incidence functions, accounting for the competing risk for death.

TAKEAWAY:

• The cumulative incidence of first ischemic stroke in patients with SCD was 2.1% by age 20 and 13.5% by age 60.
• Ischemic stroke rates increased significantly in children and adults in the 2010-2019 period, compared with the preceding decade.
• Risk factors for stroke and TIA included increasing age, hypertension, and hyperlipidemia.
• The study found a significant increase in rates of intracranial hemorrhage in adults aged 18-30 years and TIAs in children younger than 18 years from 2010 to 2019, compared with the prior decade.

IN PRACTICE:

“Neurovascular complications, including strokes and transient ischemic attacks (TIAs), are common and cause significant morbidity in individuals with sickle cell disease (SCD). The STOP trial (1998) established chronic transfusions as the standard of care for children with SCD at high risk for stroke,” the study’s authors wrote.

SOURCE:

This study was led by Olubusola B. Oluwole, MD, MS, University of Pittsburgh in Pennsylvania, and was published online in Blood.

LIMITATIONS:

This study’s reliance on administrative data may have introduced systematic errors, particularly with the transition from ICD-9 to ICD-10 codes. The lack of laboratory results and medication data in the HCAI database limited the ability to fully assess patient conditions and treatments. Additionally, the methodology changes in 2014 likely underreported death rates in people without PDD/EDU encounters in the calendar year preceding their death.

DISCLOSURES:

The authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Stroke rates in Californians with sickle cell disease (SCD) have increased in both children and adults in the post-STOP era. The cumulative incidence of first ischemic stroke was 2.1% by age 20 and 13.5% by age 60.

METHODOLOGY:

• Researchers analyzed data from the California Department of Health Care Access and Innovation (HCAI), covering emergency department and hospitalization records from 1991 to 2019.
• A total of 7636 patients with SCD were included in the study cohort.
• Cumulative incidence and rates for primary and recurrent strokes and transient ischemic attacks (TIAs) were determined pre- and post STOP trial.
• Patients with SCD were identified using ICD-9 and ICD-10 codes, with specific criteria for inclusion based on hospitalization records.
• The study utilized Fine and Gray methodology to calculate cumulative incidence functions, accounting for the competing risk for death.

TAKEAWAY:

• The cumulative incidence of first ischemic stroke in patients with SCD was 2.1% by age 20 and 13.5% by age 60.
• Ischemic stroke rates increased significantly in children and adults in the 2010-2019 period, compared with the preceding decade.
• Risk factors for stroke and TIA included increasing age, hypertension, and hyperlipidemia.
• The study found a significant increase in rates of intracranial hemorrhage in adults aged 18-30 years and TIAs in children younger than 18 years from 2010 to 2019, compared with the prior decade.

IN PRACTICE:

“Neurovascular complications, including strokes and transient ischemic attacks (TIAs), are common and cause significant morbidity in individuals with sickle cell disease (SCD). The STOP trial (1998) established chronic transfusions as the standard of care for children with SCD at high risk for stroke,” the study’s authors wrote.

SOURCE:

This study was led by Olubusola B. Oluwole, MD, MS, University of Pittsburgh in Pennsylvania, and was published online in Blood.

LIMITATIONS:

This study’s reliance on administrative data may have introduced systematic errors, particularly with the transition from ICD-9 to ICD-10 codes. The lack of laboratory results and medication data in the HCAI database limited the ability to fully assess patient conditions and treatments. Additionally, the methodology changes in 2014 likely underreported death rates in people without PDD/EDU encounters in the calendar year preceding their death.

DISCLOSURES:

The authors reported no relevant conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

ABU DHABI, UAE — The long-standing debate as to when to start anticoagulation in patients with an acute ischemic stroke and atrial fibrillation (AF) looks as though it’s settled.

Results of the OPTIMAS trial, the largest trial to address this question, showed that initiation of a direct oral anticoagulant (DOAC) within 4 days after ischemic stroke associated with AF was noninferior to delayed initiation (7-14 days) for the composite outcome of ischemic stroke, intracranial hemorrhage, unclassifiable stroke, or systemic embolism at 90 days. Importantly, early DOAC initiation was safe with a low rate of symptomatic hemorrhage, regardless of stroke severity.

In addition, a new meta-analysis, known as CATALYST, which included all four randomized trials now available on this issue, showed a clear benefit of earlier initiation (within 4 days) versus later (5 days and up) on its primary endpoint of new ischemic stroke, symptomatic intracerebral hemorrhage, and unclassified stroke at 30 days.

The results of the OPTIMAS trial and the meta-analysis were both presented at the 16th World Stroke Congress (WSC) 2024. The OPTIMAS trial was also simultaneously published online in The Lancet.

“Our findings do not support the guideline recommended practice of delaying DOAC initiation after ischemic stroke with AF regardless of clinical stroke severity, reperfusion or prior anticoagulation,” said OPTIMAS investigator David Werring, PhD, University College London in England.

Presenting the meta-analysis, Signild Åsberg, MD, Uppsala University, Uppsala, Sweden, said his group’s findings “support the early start of DOACs (within 4 days) in clinical practice.”

Werring pointed out that starting anticoagulation early also had important logistical advantages.

“This means we can start anticoagulation before patients are discharged from hospital, thus ensuring that this important secondary prevention medication is always prescribed, when appropriate. That’s going to be a key benefit in the real world.”
 

Clinical Dilemma

Werring noted that AF accounts for 20%-30% of ischemic strokes, which tend to be more severe than other stroke types. The pivotal trials of DOACs did not include patients within 30 days of an acute ischemic stroke, creating a clinical dilemma on when to start this treatment.

“On the one hand, we wish to start anticoagulation early to reduce early recurrence of ischemic stroke. But on the other hand, there are concerns that if we start anticoagulation early, it could cause intracranial bleeding, including hemorrhagic transformation of the acute infarct. Guidelines on this issue are inconsistent and have called for randomized control trials in this area,” he noted.

So far, three randomized trials on DOAC timing have been conducted, which Werring said suggested early DOAC treatment is safe. However, these trials have provided limited data on moderate to severe stroke, patients with hemorrhagic transformation, or those already taking oral anticoagulants — subgroups in which there are particular concerns about early oral anticoagulation.

The OPTIMAS trial included a broad population of patients with acute ischemic stroke associated with AF including these critical subgroups.

The trial, conducted at 100 hospitals in the United Kingdom, included 3648 patients with AF and acute ischemic stroke who were randomly assigned to early (≤ 4 days from stroke symptom onset) or delayed (7-14 days) anticoagulation initiation with any DOAC.

There was no restriction on stroke severity, and patients with hemorrhagic transformation were allowed, with the exception of parenchymal hematoma type 2, a rare and severe type of hemorrhagic transformation.

Approximately 35% of patients had been taking an oral anticoagulant, mainly DOACs, prior to their stroke, and about 30% had revascularization with thrombolysis, thrombectomy, or both. Nearly 900 participants (25%) had moderate to severe stroke (National Institutes of Health Stroke Scale [NIHSS] score ≥ 11).

The primary outcome was a composite of recurrent ischemic stroke, symptomatic intracranial hemorrhage, unclassifiable stroke, or systemic embolism incidence at 90 days. The initial analysis aimed to show noninferiority of early DOAC initiation, with a noninferiority margin of 2 percentage points, followed by testing for superiority.

Results showed that the primary outcome occurred in 3.3% of both groups (adjusted risk difference, 0.000; 95% CI, −0.011 to 0.012), with noninferiority criteria fulfilled. Superiority was not achieved.

Symptomatic intracranial hemorrhage occurred in 0.6% of patients in the early DOAC initiation group vs 0.7% of those in the delayed group — a nonsignificant difference.
 

Applicable to Real-World Practice

A time-to-event analysis of the primary outcome showed that there were fewer outcomes in the first 30 days in the early DOAC initiation group, but the curves subsequently came together.

Subgroup analysis showed consistent results across all whole trial population, with no modification of the effect of early DOAC initiation according to stroke severity, reperfusion treatment, or previous anticoagulation.

Werring said that strengths of the OPTIMAS trial included a large sample size, a broad population with generalizability to real-world practice, and the inclusion of patients at higher bleeding risk than included in previous studies.

During the discussion, it was noted that the trial included few (about 3%) patients — about 3% — with very severe stroke (NIHSS score > 21), with the question of whether the findings could be applied to this group.

Werring noted that there was no evidence of heterogeneity, and if anything, patients with more severe strokes may have had a slightly greater benefit with early DOAC initiation. “So my feeling is probably these results do generalize to the more severe patients,” he said.

In a commentary accompanying The Lancet publication of the OPTIMAS trial, Else Charlotte Sandset, MD, University of Oslo, in Norway, and Diana Aguiar de Sousa, MD, Central Lisbon University Hospital Centre, Lisbon, Portugal, noted that the “increasing body of evidence strongly supports the message that initiating anticoagulation early for patients with ischaemic stroke is safe. The consistent absence of heterogeneity in safety outcomes suggests that the risk of symptomatic intracranial haemorrhage is not a major concern, even in patients with large infarcts.”

Regardless of the size of the treatment effect, initiating early anticoagulation makes sense when it can be done safely, as it helps prevent recurrent ischemic strokes and other embolic events. Early intervention reduces embolization risk, particularly in high-risk patients, and allows secondary prevention measures to begin while patients are still hospitalized, they added.
 

CATALYST Findings

The CATALYST meta-analysis included four trials, namely, TIMING, ELAN, OPTIMAS, and START, of early versus later DOAC administration in a total of 5411 patients with acute ischemic stroke and AF. In this meta-analysis, early was defined as within 4 days of stroke and later as 5 days or more.

The primary outcome was a composite of ischemic stroke, symptomatic, intracerebral hemorrhage, or unclassified stroke at 30 days. This was significantly reduced in the early group (2.12%) versus 3.02% in the later group, giving an odds ratio of 0.70 (95% CI, 0.50-0.98; P =.04).

The results were consistent across all subgroups, all suggesting an advantage for early DOAC.

Further analysis showed a clear benefit of early DOAC initiation in ischemic stroke with the curves separating early.

The rate of symptomatic intracerebral hemorrhage was low in both groups (0.45% in the early group and 0.40% in the later group) as was extracranial hemorrhage (0.45% vs 0.55%).

At 90 days, there were still lower event rates in the early group than the later one, but the difference was no longer statistically significant.
 

‘Practice Changing’ Results

Commenting on both studies, chair of the WSC session where the results of both OPTIMAS trial and the meta-analysis were presented, Craig Anderson, MD, The George Institute for Global Health, Sydney, Australia, described these latest results as “practice changing.”

“When to start anticoagulation in acute ischemic stroke patients with AF has been uncertain for a long time. The dogma has always been that we should wait. Over the years, we’ve become a little bit more confident, but now we’ve got good data from randomized trials showing that early initiation is safe, with the meta-analysis showing benefit,” he said.

“These new data from OPTIMAS will reassure clinicians that there’s no excessive harm and, more importantly, no excessive harm across all patient groups. And the meta-analysis clearly showed an upfront benefit of starting anticoagulation early. That’s a very convincing result,” he added.

Anderson cautioned that there still may be concerns about starting DOACs early in some groups, including Asian populations that have a higher bleeding risk (these trials included predominantly White patients) and people who are older or frail, who may have extensive small vessel disease.

During the discussion, several questions centered on the lack of imaging data available on the patients in the studies. Anderson said imaging data would help reassure clinicians on the safety of early anticoagulation in patients with large infarcts.

“Stroke clinicians make decisions on the basis of the patient and on the basis of the brain, and we only have the patient information at the moment. We don’t have information on the brain — that comes from imaging.”

Regardless, he believes these new data will lead to a shift in practice. “But maybe, it won’t be as dramatic as we would hope because I think some clinicians may still hesitate to apply these results to patients at high risk of bleeding. With imaging data from the studies that might change.”

The OPTIMAS trial was funded by University College London and the British Heart Foundation. Werring reported consulting fees from Novo Nordisk, National Institute for Health and Care Excellence, and Alnylam; payments or speaker honoraria from Novo Nordisk, Bayer, and AstraZeneca/Alexion; participation on a data safety monitoring board for the OXHARP trial; and participation as steering committee chair for the MACE-ICH and PLINTH trials. Åsberg received institutional research grants and lecture fees to her institution from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and Institut Produits Synthése. Sandset and de Sousa were both steering committee members of the ELAN trial. Anderson reported grant funding from Penumbra and Takeda China.
 

A version of this article appeared on Medscape.com.

ABU DHABI, UAE — The long-standing debate as to when to start anticoagulation in patients with an acute ischemic stroke and atrial fibrillation (AF) looks as though it’s settled.

Results of the OPTIMAS trial, the largest trial to address this question, showed that initiation of a direct oral anticoagulant (DOAC) within 4 days after ischemic stroke associated with AF was noninferior to delayed initiation (7-14 days) for the composite outcome of ischemic stroke, intracranial hemorrhage, unclassifiable stroke, or systemic embolism at 90 days. Importantly, early DOAC initiation was safe with a low rate of symptomatic hemorrhage, regardless of stroke severity.

In addition, a new meta-analysis, known as CATALYST, which included all four randomized trials now available on this issue, showed a clear benefit of earlier initiation (within 4 days) versus later (5 days and up) on its primary endpoint of new ischemic stroke, symptomatic intracerebral hemorrhage, and unclassified stroke at 30 days.

The results of the OPTIMAS trial and the meta-analysis were both presented at the 16th World Stroke Congress (WSC) 2024. The OPTIMAS trial was also simultaneously published online in The Lancet.

“Our findings do not support the guideline recommended practice of delaying DOAC initiation after ischemic stroke with AF regardless of clinical stroke severity, reperfusion or prior anticoagulation,” said OPTIMAS investigator David Werring, PhD, University College London in England.

Presenting the meta-analysis, Signild Åsberg, MD, Uppsala University, Uppsala, Sweden, said his group’s findings “support the early start of DOACs (within 4 days) in clinical practice.”

Werring pointed out that starting anticoagulation early also had important logistical advantages.

“This means we can start anticoagulation before patients are discharged from hospital, thus ensuring that this important secondary prevention medication is always prescribed, when appropriate. That’s going to be a key benefit in the real world.”
 

Clinical Dilemma

Werring noted that AF accounts for 20%-30% of ischemic strokes, which tend to be more severe than other stroke types. The pivotal trials of DOACs did not include patients within 30 days of an acute ischemic stroke, creating a clinical dilemma on when to start this treatment.

“On the one hand, we wish to start anticoagulation early to reduce early recurrence of ischemic stroke. But on the other hand, there are concerns that if we start anticoagulation early, it could cause intracranial bleeding, including hemorrhagic transformation of the acute infarct. Guidelines on this issue are inconsistent and have called for randomized control trials in this area,” he noted.

So far, three randomized trials on DOAC timing have been conducted, which Werring said suggested early DOAC treatment is safe. However, these trials have provided limited data on moderate to severe stroke, patients with hemorrhagic transformation, or those already taking oral anticoagulants — subgroups in which there are particular concerns about early oral anticoagulation.

The OPTIMAS trial included a broad population of patients with acute ischemic stroke associated with AF including these critical subgroups.

The trial, conducted at 100 hospitals in the United Kingdom, included 3648 patients with AF and acute ischemic stroke who were randomly assigned to early (≤ 4 days from stroke symptom onset) or delayed (7-14 days) anticoagulation initiation with any DOAC.

There was no restriction on stroke severity, and patients with hemorrhagic transformation were allowed, with the exception of parenchymal hematoma type 2, a rare and severe type of hemorrhagic transformation.

Approximately 35% of patients had been taking an oral anticoagulant, mainly DOACs, prior to their stroke, and about 30% had revascularization with thrombolysis, thrombectomy, or both. Nearly 900 participants (25%) had moderate to severe stroke (National Institutes of Health Stroke Scale [NIHSS] score ≥ 11).

The primary outcome was a composite of recurrent ischemic stroke, symptomatic intracranial hemorrhage, unclassifiable stroke, or systemic embolism incidence at 90 days. The initial analysis aimed to show noninferiority of early DOAC initiation, with a noninferiority margin of 2 percentage points, followed by testing for superiority.

Results showed that the primary outcome occurred in 3.3% of both groups (adjusted risk difference, 0.000; 95% CI, −0.011 to 0.012), with noninferiority criteria fulfilled. Superiority was not achieved.

Symptomatic intracranial hemorrhage occurred in 0.6% of patients in the early DOAC initiation group vs 0.7% of those in the delayed group — a nonsignificant difference.
 

Applicable to Real-World Practice

A time-to-event analysis of the primary outcome showed that there were fewer outcomes in the first 30 days in the early DOAC initiation group, but the curves subsequently came together.

Subgroup analysis showed consistent results across all whole trial population, with no modification of the effect of early DOAC initiation according to stroke severity, reperfusion treatment, or previous anticoagulation.

Werring said that strengths of the OPTIMAS trial included a large sample size, a broad population with generalizability to real-world practice, and the inclusion of patients at higher bleeding risk than included in previous studies.

During the discussion, it was noted that the trial included few (about 3%) patients — about 3% — with very severe stroke (NIHSS score > 21), with the question of whether the findings could be applied to this group.

Werring noted that there was no evidence of heterogeneity, and if anything, patients with more severe strokes may have had a slightly greater benefit with early DOAC initiation. “So my feeling is probably these results do generalize to the more severe patients,” he said.

In a commentary accompanying The Lancet publication of the OPTIMAS trial, Else Charlotte Sandset, MD, University of Oslo, in Norway, and Diana Aguiar de Sousa, MD, Central Lisbon University Hospital Centre, Lisbon, Portugal, noted that the “increasing body of evidence strongly supports the message that initiating anticoagulation early for patients with ischaemic stroke is safe. The consistent absence of heterogeneity in safety outcomes suggests that the risk of symptomatic intracranial haemorrhage is not a major concern, even in patients with large infarcts.”

Regardless of the size of the treatment effect, initiating early anticoagulation makes sense when it can be done safely, as it helps prevent recurrent ischemic strokes and other embolic events. Early intervention reduces embolization risk, particularly in high-risk patients, and allows secondary prevention measures to begin while patients are still hospitalized, they added.
 

CATALYST Findings

The CATALYST meta-analysis included four trials, namely, TIMING, ELAN, OPTIMAS, and START, of early versus later DOAC administration in a total of 5411 patients with acute ischemic stroke and AF. In this meta-analysis, early was defined as within 4 days of stroke and later as 5 days or more.

The primary outcome was a composite of ischemic stroke, symptomatic, intracerebral hemorrhage, or unclassified stroke at 30 days. This was significantly reduced in the early group (2.12%) versus 3.02% in the later group, giving an odds ratio of 0.70 (95% CI, 0.50-0.98; P =.04).

The results were consistent across all subgroups, all suggesting an advantage for early DOAC.

Further analysis showed a clear benefit of early DOAC initiation in ischemic stroke with the curves separating early.

The rate of symptomatic intracerebral hemorrhage was low in both groups (0.45% in the early group and 0.40% in the later group) as was extracranial hemorrhage (0.45% vs 0.55%).

At 90 days, there were still lower event rates in the early group than the later one, but the difference was no longer statistically significant.
 

‘Practice Changing’ Results

Commenting on both studies, chair of the WSC session where the results of both OPTIMAS trial and the meta-analysis were presented, Craig Anderson, MD, The George Institute for Global Health, Sydney, Australia, described these latest results as “practice changing.”

“When to start anticoagulation in acute ischemic stroke patients with AF has been uncertain for a long time. The dogma has always been that we should wait. Over the years, we’ve become a little bit more confident, but now we’ve got good data from randomized trials showing that early initiation is safe, with the meta-analysis showing benefit,” he said.

“These new data from OPTIMAS will reassure clinicians that there’s no excessive harm and, more importantly, no excessive harm across all patient groups. And the meta-analysis clearly showed an upfront benefit of starting anticoagulation early. That’s a very convincing result,” he added.

Anderson cautioned that there still may be concerns about starting DOACs early in some groups, including Asian populations that have a higher bleeding risk (these trials included predominantly White patients) and people who are older or frail, who may have extensive small vessel disease.

During the discussion, several questions centered on the lack of imaging data available on the patients in the studies. Anderson said imaging data would help reassure clinicians on the safety of early anticoagulation in patients with large infarcts.

“Stroke clinicians make decisions on the basis of the patient and on the basis of the brain, and we only have the patient information at the moment. We don’t have information on the brain — that comes from imaging.”

Regardless, he believes these new data will lead to a shift in practice. “But maybe, it won’t be as dramatic as we would hope because I think some clinicians may still hesitate to apply these results to patients at high risk of bleeding. With imaging data from the studies that might change.”

The OPTIMAS trial was funded by University College London and the British Heart Foundation. Werring reported consulting fees from Novo Nordisk, National Institute for Health and Care Excellence, and Alnylam; payments or speaker honoraria from Novo Nordisk, Bayer, and AstraZeneca/Alexion; participation on a data safety monitoring board for the OXHARP trial; and participation as steering committee chair for the MACE-ICH and PLINTH trials. Åsberg received institutional research grants and lecture fees to her institution from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and Institut Produits Synthése. Sandset and de Sousa were both steering committee members of the ELAN trial. Anderson reported grant funding from Penumbra and Takeda China.
 

A version of this article appeared on Medscape.com.

ABU DHABI, UAE — The long-standing debate as to when to start anticoagulation in patients with an acute ischemic stroke and atrial fibrillation (AF) looks as though it’s settled.

Results of the OPTIMAS trial, the largest trial to address this question, showed that initiation of a direct oral anticoagulant (DOAC) within 4 days after ischemic stroke associated with AF was noninferior to delayed initiation (7-14 days) for the composite outcome of ischemic stroke, intracranial hemorrhage, unclassifiable stroke, or systemic embolism at 90 days. Importantly, early DOAC initiation was safe with a low rate of symptomatic hemorrhage, regardless of stroke severity.

In addition, a new meta-analysis, known as CATALYST, which included all four randomized trials now available on this issue, showed a clear benefit of earlier initiation (within 4 days) versus later (5 days and up) on its primary endpoint of new ischemic stroke, symptomatic intracerebral hemorrhage, and unclassified stroke at 30 days.

The results of the OPTIMAS trial and the meta-analysis were both presented at the 16th World Stroke Congress (WSC) 2024. The OPTIMAS trial was also simultaneously published online in The Lancet.

“Our findings do not support the guideline recommended practice of delaying DOAC initiation after ischemic stroke with AF regardless of clinical stroke severity, reperfusion or prior anticoagulation,” said OPTIMAS investigator David Werring, PhD, University College London in England.

Presenting the meta-analysis, Signild Åsberg, MD, Uppsala University, Uppsala, Sweden, said his group’s findings “support the early start of DOACs (within 4 days) in clinical practice.”

Werring pointed out that starting anticoagulation early also had important logistical advantages.

“This means we can start anticoagulation before patients are discharged from hospital, thus ensuring that this important secondary prevention medication is always prescribed, when appropriate. That’s going to be a key benefit in the real world.”
 

Clinical Dilemma

Werring noted that AF accounts for 20%-30% of ischemic strokes, which tend to be more severe than other stroke types. The pivotal trials of DOACs did not include patients within 30 days of an acute ischemic stroke, creating a clinical dilemma on when to start this treatment.

“On the one hand, we wish to start anticoagulation early to reduce early recurrence of ischemic stroke. But on the other hand, there are concerns that if we start anticoagulation early, it could cause intracranial bleeding, including hemorrhagic transformation of the acute infarct. Guidelines on this issue are inconsistent and have called for randomized control trials in this area,” he noted.

So far, three randomized trials on DOAC timing have been conducted, which Werring said suggested early DOAC treatment is safe. However, these trials have provided limited data on moderate to severe stroke, patients with hemorrhagic transformation, or those already taking oral anticoagulants — subgroups in which there are particular concerns about early oral anticoagulation.

The OPTIMAS trial included a broad population of patients with acute ischemic stroke associated with AF including these critical subgroups.

The trial, conducted at 100 hospitals in the United Kingdom, included 3648 patients with AF and acute ischemic stroke who were randomly assigned to early (≤ 4 days from stroke symptom onset) or delayed (7-14 days) anticoagulation initiation with any DOAC.

There was no restriction on stroke severity, and patients with hemorrhagic transformation were allowed, with the exception of parenchymal hematoma type 2, a rare and severe type of hemorrhagic transformation.

Approximately 35% of patients had been taking an oral anticoagulant, mainly DOACs, prior to their stroke, and about 30% had revascularization with thrombolysis, thrombectomy, or both. Nearly 900 participants (25%) had moderate to severe stroke (National Institutes of Health Stroke Scale [NIHSS] score ≥ 11).

The primary outcome was a composite of recurrent ischemic stroke, symptomatic intracranial hemorrhage, unclassifiable stroke, or systemic embolism incidence at 90 days. The initial analysis aimed to show noninferiority of early DOAC initiation, with a noninferiority margin of 2 percentage points, followed by testing for superiority.

Results showed that the primary outcome occurred in 3.3% of both groups (adjusted risk difference, 0.000; 95% CI, −0.011 to 0.012), with noninferiority criteria fulfilled. Superiority was not achieved.

Symptomatic intracranial hemorrhage occurred in 0.6% of patients in the early DOAC initiation group vs 0.7% of those in the delayed group — a nonsignificant difference.
 

Applicable to Real-World Practice

A time-to-event analysis of the primary outcome showed that there were fewer outcomes in the first 30 days in the early DOAC initiation group, but the curves subsequently came together.

Subgroup analysis showed consistent results across all whole trial population, with no modification of the effect of early DOAC initiation according to stroke severity, reperfusion treatment, or previous anticoagulation.

Werring said that strengths of the OPTIMAS trial included a large sample size, a broad population with generalizability to real-world practice, and the inclusion of patients at higher bleeding risk than included in previous studies.

During the discussion, it was noted that the trial included few (about 3%) patients — about 3% — with very severe stroke (NIHSS score > 21), with the question of whether the findings could be applied to this group.

Werring noted that there was no evidence of heterogeneity, and if anything, patients with more severe strokes may have had a slightly greater benefit with early DOAC initiation. “So my feeling is probably these results do generalize to the more severe patients,” he said.

In a commentary accompanying The Lancet publication of the OPTIMAS trial, Else Charlotte Sandset, MD, University of Oslo, in Norway, and Diana Aguiar de Sousa, MD, Central Lisbon University Hospital Centre, Lisbon, Portugal, noted that the “increasing body of evidence strongly supports the message that initiating anticoagulation early for patients with ischaemic stroke is safe. The consistent absence of heterogeneity in safety outcomes suggests that the risk of symptomatic intracranial haemorrhage is not a major concern, even in patients with large infarcts.”

Regardless of the size of the treatment effect, initiating early anticoagulation makes sense when it can be done safely, as it helps prevent recurrent ischemic strokes and other embolic events. Early intervention reduces embolization risk, particularly in high-risk patients, and allows secondary prevention measures to begin while patients are still hospitalized, they added.
 

CATALYST Findings

The CATALYST meta-analysis included four trials, namely, TIMING, ELAN, OPTIMAS, and START, of early versus later DOAC administration in a total of 5411 patients with acute ischemic stroke and AF. In this meta-analysis, early was defined as within 4 days of stroke and later as 5 days or more.

The primary outcome was a composite of ischemic stroke, symptomatic, intracerebral hemorrhage, or unclassified stroke at 30 days. This was significantly reduced in the early group (2.12%) versus 3.02% in the later group, giving an odds ratio of 0.70 (95% CI, 0.50-0.98; P =.04).

The results were consistent across all subgroups, all suggesting an advantage for early DOAC.

Further analysis showed a clear benefit of early DOAC initiation in ischemic stroke with the curves separating early.

The rate of symptomatic intracerebral hemorrhage was low in both groups (0.45% in the early group and 0.40% in the later group) as was extracranial hemorrhage (0.45% vs 0.55%).

At 90 days, there were still lower event rates in the early group than the later one, but the difference was no longer statistically significant.
 

‘Practice Changing’ Results

Commenting on both studies, chair of the WSC session where the results of both OPTIMAS trial and the meta-analysis were presented, Craig Anderson, MD, The George Institute for Global Health, Sydney, Australia, described these latest results as “practice changing.”

“When to start anticoagulation in acute ischemic stroke patients with AF has been uncertain for a long time. The dogma has always been that we should wait. Over the years, we’ve become a little bit more confident, but now we’ve got good data from randomized trials showing that early initiation is safe, with the meta-analysis showing benefit,” he said.

“These new data from OPTIMAS will reassure clinicians that there’s no excessive harm and, more importantly, no excessive harm across all patient groups. And the meta-analysis clearly showed an upfront benefit of starting anticoagulation early. That’s a very convincing result,” he added.

Anderson cautioned that there still may be concerns about starting DOACs early in some groups, including Asian populations that have a higher bleeding risk (these trials included predominantly White patients) and people who are older or frail, who may have extensive small vessel disease.

During the discussion, several questions centered on the lack of imaging data available on the patients in the studies. Anderson said imaging data would help reassure clinicians on the safety of early anticoagulation in patients with large infarcts.

“Stroke clinicians make decisions on the basis of the patient and on the basis of the brain, and we only have the patient information at the moment. We don’t have information on the brain — that comes from imaging.”

Regardless, he believes these new data will lead to a shift in practice. “But maybe, it won’t be as dramatic as we would hope because I think some clinicians may still hesitate to apply these results to patients at high risk of bleeding. With imaging data from the studies that might change.”

The OPTIMAS trial was funded by University College London and the British Heart Foundation. Werring reported consulting fees from Novo Nordisk, National Institute for Health and Care Excellence, and Alnylam; payments or speaker honoraria from Novo Nordisk, Bayer, and AstraZeneca/Alexion; participation on a data safety monitoring board for the OXHARP trial; and participation as steering committee chair for the MACE-ICH and PLINTH trials. Åsberg received institutional research grants and lecture fees to her institution from AstraZeneca, Boehringer Ingelheim, Bristol Myers Squibb, and Institut Produits Synthése. Sandset and de Sousa were both steering committee members of the ELAN trial. Anderson reported grant funding from Penumbra and Takeda China.
 

A version of this article appeared on Medscape.com.

Researchers have identified a potential new sign of concussion in athletes, particularly football players, that can easily be spotted on the field, indicating the need for immediate removal from the game and evaluation for potential traumatic brain injury (TBI).

Spontaneous Headshake After a Kinematic Event (SHAAKE) refers to the rapid, back-and-forth head movement athletes exhibit following a blow to the head. This voluntary motion typically occurs within seconds to minutes after impact and is a familiar response in athletes.

In a recent survey, 7 out of 10 adult athletes recalled making this movement after a collision, and three out of four times they attributed this back-and-forth head movement to a concussion. The association was strongest among football players, who reported that over 90% of SHAAKE episodes were associated with a concussion.

The results were published online in Diagnostics.
 

Call to Action

“Everyone” — including sports and medical organizations — “should be adding this to their list of potential concussion signs and their protocol immediately,” study investigator Chris Nowinski, PhD, CEO and co-founder of the Concussion Legacy Foundation, told this news organization.

Nowinski said it’s “fascinating” that this concussion sign hasn’t been formally studied or added to formal concussion screening metrics before now, given that it’s been depicted in movies, television, and cartoons for decades.

Coaches, medical professionals, and concussion spotters should be trained to recognize when a SHAAKE happens, he said.

“The interesting thing is, I don’t think coaches or parents need much training other than to officially tie this to suspicion of a concussion,” Nowinski added.
 

The Case of Miami Dolphins QB Tua Tagovailoa

Nowinski said he was tipped off to SHAAKE as a concussion sign after Miami Dolphins quarterback Tua Tagovailoa’s controversial undiagnosed concussion during a National Football League (NFL) game in 2022.

After Tagovailoa’s head hit the ground, he rapidly shook his head side to side, indicating displaying SHAAKE, before stumbling and collapsing. At the time, a sideline doctor attributed his collapse to a prior back injury.

If Tagovailoa had been diagnosed with a concussion, he likely would not have been playing in a game just 4 days later, where he lost consciousness after suffering a suspected second concussion and was removed from the field on a stretcher.

For the survey, Nowinski and colleagues showed 347 current and former athletes, including 109 football players, video examples of SHAAKE and them asked about their experiences with this potential indicator of concussion.

Nearly 69% of athletes reported exhibiting a SHAAKE during their career, and 93% of those reported a SHAAKE in association with concussion at least once. Athletes reported SHAAKE a median of five times in their lives.

Of the athletes who reported SHAAKE, 85% linked this head-shaking movement to concussion symptoms such as disorientation (71%) and dizziness (54%).

Across all sports, SHAAKE showed a sensitivity of 49.6% and a positive predictive value (PPV) of 72.4% for diagnosing concussions.

Among football players, sensitivity improved to 52.3%, with an estimated specificity of 99.9%, a PPV of 91.9%, and an estimated negative predictive value of 99.5%.

The main limitation of the survey was the potential for recall bias due to survey participants self-reporting prior concussions. The researchers called for future prospective studies to validate SHAAKE as a sign of concussion.
 

Instant Replay for Brain Injury?

Experts echoed the need for validation. SHAAKE represents a “promising advance” in objective TBI assessment, particularly for sideline evaluation, said Shaheen Lakhan, MD, PhD, neurologist, and researcher based in Miami, Florida, who wasn’t involved in the research.

The potential value of SHAAKE is “particularly notable given the well-documented tendency for athletes to minimize or conceal symptoms to maintain play eligibility, a limitation that has historically challenged our reliance on subjective reporting and observational assessments,” Lakhan said.

“Moving forward, validation through prospective studies incorporating real-time video analysis, helmet sensor data, and clinician-confirmed TBI diagnoses will be essential. With appropriate validation, SHAAKE could emerge as a valuable component of our sideline assessment arsenal, complementing rather than replacing existing diagnostic approaches,” Lakhan said.

“SHAAKE could be the ‘instant replay’ for brain injuries that sports medicine has been waiting for — but like any new technology, we need to make sure it works for every player, not just some,” Lakhan added.

Also weighing in, Richard Figler, MD, director of the Concussion Center, Cleveland Clinic Sports Medicine Center, Cleveland, cautioned that the survey participants were recruited from a concussion registry and self-reported an average of 23 concussions — more than one third of which happened 5-10 years prior — which begs the question, “How much are they actually remembering?”

“Our goal is to make sure that the athletes are safe and that we’re not missing concussions, and we don’t have great tools to start off with. This study opens up the door for some prospective studies [of SHAAKE] moving forward. I think we need more data before this should be listed as a definitive marker,” said Figler, who also wasn’t involved in the study.

In any case, he said, when it comes to suspected concussion in sports, “when in doubt, you sit them out,” Figler said.

This research received no external funding. Nowinski has received travel reimbursement from the NFL Players Association (NFLPA), NFL, World Rugby, WWE, and All Elite Wrestling; served as an expert witness in cases related to concussion and chronic traumatic encephalopathy; and is compensated for speaking appearances and serving on the NFL Concussion Settlement Player Advocacy Committee. Daniel H. Daneshvar served as an expert witness in legal cases involving brain injury and concussion and received funding from the Football Players Health Study at Harvard University, which is funded by the NFLPA and evaluates patients for the MGH Brain and Body TRUST Center, sponsored in part by the NFLPA. Lakhan and Figler had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

Researchers have identified a potential new sign of concussion in athletes, particularly football players, that can easily be spotted on the field, indicating the need for immediate removal from the game and evaluation for potential traumatic brain injury (TBI).

Spontaneous Headshake After a Kinematic Event (SHAAKE) refers to the rapid, back-and-forth head movement athletes exhibit following a blow to the head. This voluntary motion typically occurs within seconds to minutes after impact and is a familiar response in athletes.

In a recent survey, 7 out of 10 adult athletes recalled making this movement after a collision, and three out of four times they attributed this back-and-forth head movement to a concussion. The association was strongest among football players, who reported that over 90% of SHAAKE episodes were associated with a concussion.

The results were published online in Diagnostics.
 

Call to Action

“Everyone” — including sports and medical organizations — “should be adding this to their list of potential concussion signs and their protocol immediately,” study investigator Chris Nowinski, PhD, CEO and co-founder of the Concussion Legacy Foundation, told this news organization.

Nowinski said it’s “fascinating” that this concussion sign hasn’t been formally studied or added to formal concussion screening metrics before now, given that it’s been depicted in movies, television, and cartoons for decades.

Coaches, medical professionals, and concussion spotters should be trained to recognize when a SHAAKE happens, he said.

“The interesting thing is, I don’t think coaches or parents need much training other than to officially tie this to suspicion of a concussion,” Nowinski added.
 

The Case of Miami Dolphins QB Tua Tagovailoa

Nowinski said he was tipped off to SHAAKE as a concussion sign after Miami Dolphins quarterback Tua Tagovailoa’s controversial undiagnosed concussion during a National Football League (NFL) game in 2022.

After Tagovailoa’s head hit the ground, he rapidly shook his head side to side, indicating displaying SHAAKE, before stumbling and collapsing. At the time, a sideline doctor attributed his collapse to a prior back injury.

If Tagovailoa had been diagnosed with a concussion, he likely would not have been playing in a game just 4 days later, where he lost consciousness after suffering a suspected second concussion and was removed from the field on a stretcher.

For the survey, Nowinski and colleagues showed 347 current and former athletes, including 109 football players, video examples of SHAAKE and them asked about their experiences with this potential indicator of concussion.

Nearly 69% of athletes reported exhibiting a SHAAKE during their career, and 93% of those reported a SHAAKE in association with concussion at least once. Athletes reported SHAAKE a median of five times in their lives.

Of the athletes who reported SHAAKE, 85% linked this head-shaking movement to concussion symptoms such as disorientation (71%) and dizziness (54%).

Across all sports, SHAAKE showed a sensitivity of 49.6% and a positive predictive value (PPV) of 72.4% for diagnosing concussions.

Among football players, sensitivity improved to 52.3%, with an estimated specificity of 99.9%, a PPV of 91.9%, and an estimated negative predictive value of 99.5%.

The main limitation of the survey was the potential for recall bias due to survey participants self-reporting prior concussions. The researchers called for future prospective studies to validate SHAAKE as a sign of concussion.
 

Instant Replay for Brain Injury?

Experts echoed the need for validation. SHAAKE represents a “promising advance” in objective TBI assessment, particularly for sideline evaluation, said Shaheen Lakhan, MD, PhD, neurologist, and researcher based in Miami, Florida, who wasn’t involved in the research.

The potential value of SHAAKE is “particularly notable given the well-documented tendency for athletes to minimize or conceal symptoms to maintain play eligibility, a limitation that has historically challenged our reliance on subjective reporting and observational assessments,” Lakhan said.

“Moving forward, validation through prospective studies incorporating real-time video analysis, helmet sensor data, and clinician-confirmed TBI diagnoses will be essential. With appropriate validation, SHAAKE could emerge as a valuable component of our sideline assessment arsenal, complementing rather than replacing existing diagnostic approaches,” Lakhan said.

“SHAAKE could be the ‘instant replay’ for brain injuries that sports medicine has been waiting for — but like any new technology, we need to make sure it works for every player, not just some,” Lakhan added.

Also weighing in, Richard Figler, MD, director of the Concussion Center, Cleveland Clinic Sports Medicine Center, Cleveland, cautioned that the survey participants were recruited from a concussion registry and self-reported an average of 23 concussions — more than one third of which happened 5-10 years prior — which begs the question, “How much are they actually remembering?”

“Our goal is to make sure that the athletes are safe and that we’re not missing concussions, and we don’t have great tools to start off with. This study opens up the door for some prospective studies [of SHAAKE] moving forward. I think we need more data before this should be listed as a definitive marker,” said Figler, who also wasn’t involved in the study.

In any case, he said, when it comes to suspected concussion in sports, “when in doubt, you sit them out,” Figler said.

This research received no external funding. Nowinski has received travel reimbursement from the NFL Players Association (NFLPA), NFL, World Rugby, WWE, and All Elite Wrestling; served as an expert witness in cases related to concussion and chronic traumatic encephalopathy; and is compensated for speaking appearances and serving on the NFL Concussion Settlement Player Advocacy Committee. Daniel H. Daneshvar served as an expert witness in legal cases involving brain injury and concussion and received funding from the Football Players Health Study at Harvard University, which is funded by the NFLPA and evaluates patients for the MGH Brain and Body TRUST Center, sponsored in part by the NFLPA. Lakhan and Figler had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

Researchers have identified a potential new sign of concussion in athletes, particularly football players, that can easily be spotted on the field, indicating the need for immediate removal from the game and evaluation for potential traumatic brain injury (TBI).

Spontaneous Headshake After a Kinematic Event (SHAAKE) refers to the rapid, back-and-forth head movement athletes exhibit following a blow to the head. This voluntary motion typically occurs within seconds to minutes after impact and is a familiar response in athletes.

In a recent survey, 7 out of 10 adult athletes recalled making this movement after a collision, and three out of four times they attributed this back-and-forth head movement to a concussion. The association was strongest among football players, who reported that over 90% of SHAAKE episodes were associated with a concussion.

The results were published online in Diagnostics.
 

Call to Action

“Everyone” — including sports and medical organizations — “should be adding this to their list of potential concussion signs and their protocol immediately,” study investigator Chris Nowinski, PhD, CEO and co-founder of the Concussion Legacy Foundation, told this news organization.

Nowinski said it’s “fascinating” that this concussion sign hasn’t been formally studied or added to formal concussion screening metrics before now, given that it’s been depicted in movies, television, and cartoons for decades.

Coaches, medical professionals, and concussion spotters should be trained to recognize when a SHAAKE happens, he said.

“The interesting thing is, I don’t think coaches or parents need much training other than to officially tie this to suspicion of a concussion,” Nowinski added.
 

The Case of Miami Dolphins QB Tua Tagovailoa

Nowinski said he was tipped off to SHAAKE as a concussion sign after Miami Dolphins quarterback Tua Tagovailoa’s controversial undiagnosed concussion during a National Football League (NFL) game in 2022.

After Tagovailoa’s head hit the ground, he rapidly shook his head side to side, indicating displaying SHAAKE, before stumbling and collapsing. At the time, a sideline doctor attributed his collapse to a prior back injury.

If Tagovailoa had been diagnosed with a concussion, he likely would not have been playing in a game just 4 days later, where he lost consciousness after suffering a suspected second concussion and was removed from the field on a stretcher.

For the survey, Nowinski and colleagues showed 347 current and former athletes, including 109 football players, video examples of SHAAKE and them asked about their experiences with this potential indicator of concussion.

Nearly 69% of athletes reported exhibiting a SHAAKE during their career, and 93% of those reported a SHAAKE in association with concussion at least once. Athletes reported SHAAKE a median of five times in their lives.

Of the athletes who reported SHAAKE, 85% linked this head-shaking movement to concussion symptoms such as disorientation (71%) and dizziness (54%).

Across all sports, SHAAKE showed a sensitivity of 49.6% and a positive predictive value (PPV) of 72.4% for diagnosing concussions.

Among football players, sensitivity improved to 52.3%, with an estimated specificity of 99.9%, a PPV of 91.9%, and an estimated negative predictive value of 99.5%.

The main limitation of the survey was the potential for recall bias due to survey participants self-reporting prior concussions. The researchers called for future prospective studies to validate SHAAKE as a sign of concussion.
 

Instant Replay for Brain Injury?

Experts echoed the need for validation. SHAAKE represents a “promising advance” in objective TBI assessment, particularly for sideline evaluation, said Shaheen Lakhan, MD, PhD, neurologist, and researcher based in Miami, Florida, who wasn’t involved in the research.

The potential value of SHAAKE is “particularly notable given the well-documented tendency for athletes to minimize or conceal symptoms to maintain play eligibility, a limitation that has historically challenged our reliance on subjective reporting and observational assessments,” Lakhan said.

“Moving forward, validation through prospective studies incorporating real-time video analysis, helmet sensor data, and clinician-confirmed TBI diagnoses will be essential. With appropriate validation, SHAAKE could emerge as a valuable component of our sideline assessment arsenal, complementing rather than replacing existing diagnostic approaches,” Lakhan said.

“SHAAKE could be the ‘instant replay’ for brain injuries that sports medicine has been waiting for — but like any new technology, we need to make sure it works for every player, not just some,” Lakhan added.

Also weighing in, Richard Figler, MD, director of the Concussion Center, Cleveland Clinic Sports Medicine Center, Cleveland, cautioned that the survey participants were recruited from a concussion registry and self-reported an average of 23 concussions — more than one third of which happened 5-10 years prior — which begs the question, “How much are they actually remembering?”

“Our goal is to make sure that the athletes are safe and that we’re not missing concussions, and we don’t have great tools to start off with. This study opens up the door for some prospective studies [of SHAAKE] moving forward. I think we need more data before this should be listed as a definitive marker,” said Figler, who also wasn’t involved in the study.

In any case, he said, when it comes to suspected concussion in sports, “when in doubt, you sit them out,” Figler said.

This research received no external funding. Nowinski has received travel reimbursement from the NFL Players Association (NFLPA), NFL, World Rugby, WWE, and All Elite Wrestling; served as an expert witness in cases related to concussion and chronic traumatic encephalopathy; and is compensated for speaking appearances and serving on the NFL Concussion Settlement Player Advocacy Committee. Daniel H. Daneshvar served as an expert witness in legal cases involving brain injury and concussion and received funding from the Football Players Health Study at Harvard University, which is funded by the NFLPA and evaluates patients for the MGH Brain and Body TRUST Center, sponsored in part by the NFLPA. Lakhan and Figler had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease, the need for accurate and early diagnosis is crucial.

Blood-based biomarkers offer a promising alternative to amyloid PET scans and cerebrospinal fluid (CSF) analysis and are being increasingly used in clinical practice to support an Alzheimer’s disease diagnosis.

Recently, an expert workgroup convened by the Global CEO Initiative on Alzheimer’s Disease published recommendations for the clinical implementation of Alzheimer’s disease blood-based biomarkers.

“Our hope was to provide some recommendations that clinicians could use to develop the best pathways for their clinical practice,” said workgroup co-chair Michelle M. Mielke, PhD, with Wake Forest University School of Medicine, Winston-Salem, North Carolina.
 

Triage and Confirmatory Pathways

The group recommends two implementation pathways for Alzheimer’s disease blood biomarkers — one for current use for triaging and another for future use to confirm amyloid pathology once blood biomarker tests have reached sufficient performance for this purpose.

In the triage pathway, a negative blood biomarker test would flag individuals unlikely to have detectable brain amyloid pathology. This outcome would prompt clinicians to focus on evaluating non–Alzheimer’s disease-related causes of cognitive impairment, which may streamline the diagnosis of other causes of cognitive impairment, the authors said.

A positive triage blood test would suggest a higher likelihood of amyloid pathology and prompt referral to secondary care for further assessment and consideration for a second, more accurate test, such as amyloid PET or CSF for amyloid confirmation.

In the confirmatory pathway, a positive blood biomarker test result would identify amyloid pathology without the need for a second test, providing a faster route to diagnosis, the authors noted.

Mielke emphasized that these recommendations represent a “first step” and will need to be updated as experiences with the Alzheimer’s disease blood biomarkers in clinical care increase and additional barriers and facilitators are identified.

“These updates will likely include community-informed approaches that incorporate feedback from patients as well as healthcare providers, alongside results from validation in diverse real-world settings,” said workgroup co-chair Chi Udeh-Momoh, PhD, MSc, with Wake Forest University School of Medicine and the Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

The Alzheimer’s Association published “appropriate use” recommendations for blood biomarkers in 2022.

“Currently, the Alzheimer’s Association is building an updated library of clinical guidance that distills the scientific evidence using de novo systematic reviews and translates them into clear and actionable recommendations for clinical practice,” said Rebecca M. Edelmayer, PhD, vice president of scientific engagement, Alzheimer’s Association.

“The first major effort with our new process will be the upcoming Evidence-based Clinical Practice Guideline on the Use of Blood-based Biomarkers (BBMs) in Specialty Care Settings. This guideline’s recommendations will be published in early 2025,” Edelmayer said.
 

Availability and Accuracy

Research has shown that amyloid beta and tau protein blood biomarkers — especially a high plasma phosphorylated (p)–tau217 levels — are highly accurate in identifying Alzheimer’s disease in patients with cognitive symptoms attending primary and secondary care clinics.

Several tests targeting plasma p-tau217 are now available for use. They include the PrecivityAD2 blood test from C2N Diagnostics and the Simoa p-Tau 217 Planar Kit and LucentAD p-Tau 217 — both from Quanterix.

In a recent head-to-head comparison of seven leading blood tests for AD pathology, measures of plasma p-tau217, either individually or in combination with other plasma biomarkers, had the strongest relationships with Alzheimer’s disease outcomes.

A recent Swedish study showed that the PrecivityAD2 test had an accuracy of 91% for correctly classifying clinical, biomarker-verified Alzheimer’s disease.

“We’ve been using these blood biomarkers in research for a long time and we’re now taking the jump to start using them in clinic to risk stratify patients,” said Fanny Elahi, MD, PhD, director of fluid biomarker research for the Barbara and Maurice Deane Center for Wellness and Cognitive Health at Icahn Mount Sinai in New York City.

New York’s Mount Sinai Health System is among the first in the northeast to offer blood tests across primary and specialty care settings for early diagnosis of AD and related dementias.

Edelmayer cautioned, “There is no single, stand-alone test to diagnose Alzheimer’s disease today. Blood testing is one piece of the diagnostic process.”

“Currently, physicians use well-established diagnostic tools combined with medical history and other information, including neurological exams, cognitive and functional assessments as well as brain imaging and spinal fluid analysis and blood to make an accurate diagnosis and to understand which patients are eligible for approved treatments,” she said.

There are also emerging biomarkers in the research pipeline, Edelmayer said.

“For example, some researchers think retinal imaging has the potential to detect biological signs of Alzheimer’s disease within certain areas of the eye,” she explained.

“Other emerging biomarkers include examining components in saliva and the skin for signals that may indicate early biological changes in the brain. These biomarkers are still very exploratory, and more research is needed before these tests or biomarkers can be used more routinely to study risk or aid in diagnosis,” Edelmayer said.
 

Ideal Candidates for Alzheimer’s Disease Blood Testing?

Experts agree that blood tests represent a convenient and scalable option to address the anticipated surge in demand for biomarker testing with the availability of disease-modifying treatments. For now, however, they are not for all older adults worried about their memory.

“Current practice should focus on using these blood biomarkers in individuals with cognitive impairment rather than in those with normal cognition or subjective cognitive decline until further research demonstrates effective interventions for individuals considered cognitively normal with elevated levels of amyloid,” the authors of a recent JAMA editorial noted.

At Mount Sinai, “we’re not starting with stone-cold asymptomatic individuals. But ultimately, this is what the blood tests are intended for — screening,” Elahi noted.

She also noted that Mount Sinai has a “very diverse population” — some with young onset cognitive symptoms, so the entry criteria for testing are “very wide.”

“Anyone above age 40 with symptoms can qualify to get a blood test. We do ask at this stage that either the individual report symptoms or someone in their life or their clinician be worried about their cognition or their brain function,” Elahi said.
 

Ethical Considerations, Counseling

Elahi emphasized the importance of counseling patients who come to the clinic seeking an Alzheimer’s disease blood test. This should include how the diagnostic process will unfold and what the next steps are with a given result.

Elahi said patients need to be informed that Alzheimer’s disease blood biomarkers are still “relatively new,” and a test can help a patient “know the likelihood of having the disease, but it won’t be 100% definitive.”

To ensure the ethical principle of “do no harm,” counseling should ensure that patients are fully prepared for the implications of the test results and ensure that the decision to test aligns with the patient’s readiness and well-being, Elahi said.

Edelmayer said the forthcoming clinical practice guidelines will provide “evidence-based recommendations for physicians to help guide them through the decision-making process around who should be tested and when. In the meantime, the Alzheimer’s Association urges providers to refer to the 2022 appropriate use recommendations for blood tests in clinical practice and trial settings.”

Mielke has served on scientific advisory boards and/or having consulted for Acadia, Biogen, Eisai, LabCorp, Lilly, Merck, PeerView Institute, Roche, Siemens Healthineers, and Sunbird Bio. Edelmayer and Elahi had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease, the need for accurate and early diagnosis is crucial.

Blood-based biomarkers offer a promising alternative to amyloid PET scans and cerebrospinal fluid (CSF) analysis and are being increasingly used in clinical practice to support an Alzheimer’s disease diagnosis.

Recently, an expert workgroup convened by the Global CEO Initiative on Alzheimer’s Disease published recommendations for the clinical implementation of Alzheimer’s disease blood-based biomarkers.

“Our hope was to provide some recommendations that clinicians could use to develop the best pathways for their clinical practice,” said workgroup co-chair Michelle M. Mielke, PhD, with Wake Forest University School of Medicine, Winston-Salem, North Carolina.
 

Triage and Confirmatory Pathways

The group recommends two implementation pathways for Alzheimer’s disease blood biomarkers — one for current use for triaging and another for future use to confirm amyloid pathology once blood biomarker tests have reached sufficient performance for this purpose.

In the triage pathway, a negative blood biomarker test would flag individuals unlikely to have detectable brain amyloid pathology. This outcome would prompt clinicians to focus on evaluating non–Alzheimer’s disease-related causes of cognitive impairment, which may streamline the diagnosis of other causes of cognitive impairment, the authors said.

A positive triage blood test would suggest a higher likelihood of amyloid pathology and prompt referral to secondary care for further assessment and consideration for a second, more accurate test, such as amyloid PET or CSF for amyloid confirmation.

In the confirmatory pathway, a positive blood biomarker test result would identify amyloid pathology without the need for a second test, providing a faster route to diagnosis, the authors noted.

Mielke emphasized that these recommendations represent a “first step” and will need to be updated as experiences with the Alzheimer’s disease blood biomarkers in clinical care increase and additional barriers and facilitators are identified.

“These updates will likely include community-informed approaches that incorporate feedback from patients as well as healthcare providers, alongside results from validation in diverse real-world settings,” said workgroup co-chair Chi Udeh-Momoh, PhD, MSc, with Wake Forest University School of Medicine and the Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

The Alzheimer’s Association published “appropriate use” recommendations for blood biomarkers in 2022.

“Currently, the Alzheimer’s Association is building an updated library of clinical guidance that distills the scientific evidence using de novo systematic reviews and translates them into clear and actionable recommendations for clinical practice,” said Rebecca M. Edelmayer, PhD, vice president of scientific engagement, Alzheimer’s Association.

“The first major effort with our new process will be the upcoming Evidence-based Clinical Practice Guideline on the Use of Blood-based Biomarkers (BBMs) in Specialty Care Settings. This guideline’s recommendations will be published in early 2025,” Edelmayer said.
 

Availability and Accuracy

Research has shown that amyloid beta and tau protein blood biomarkers — especially a high plasma phosphorylated (p)–tau217 levels — are highly accurate in identifying Alzheimer’s disease in patients with cognitive symptoms attending primary and secondary care clinics.

Several tests targeting plasma p-tau217 are now available for use. They include the PrecivityAD2 blood test from C2N Diagnostics and the Simoa p-Tau 217 Planar Kit and LucentAD p-Tau 217 — both from Quanterix.

In a recent head-to-head comparison of seven leading blood tests for AD pathology, measures of plasma p-tau217, either individually or in combination with other plasma biomarkers, had the strongest relationships with Alzheimer’s disease outcomes.

A recent Swedish study showed that the PrecivityAD2 test had an accuracy of 91% for correctly classifying clinical, biomarker-verified Alzheimer’s disease.

“We’ve been using these blood biomarkers in research for a long time and we’re now taking the jump to start using them in clinic to risk stratify patients,” said Fanny Elahi, MD, PhD, director of fluid biomarker research for the Barbara and Maurice Deane Center for Wellness and Cognitive Health at Icahn Mount Sinai in New York City.

New York’s Mount Sinai Health System is among the first in the northeast to offer blood tests across primary and specialty care settings for early diagnosis of AD and related dementias.

Edelmayer cautioned, “There is no single, stand-alone test to diagnose Alzheimer’s disease today. Blood testing is one piece of the diagnostic process.”

“Currently, physicians use well-established diagnostic tools combined with medical history and other information, including neurological exams, cognitive and functional assessments as well as brain imaging and spinal fluid analysis and blood to make an accurate diagnosis and to understand which patients are eligible for approved treatments,” she said.

There are also emerging biomarkers in the research pipeline, Edelmayer said.

“For example, some researchers think retinal imaging has the potential to detect biological signs of Alzheimer’s disease within certain areas of the eye,” she explained.

“Other emerging biomarkers include examining components in saliva and the skin for signals that may indicate early biological changes in the brain. These biomarkers are still very exploratory, and more research is needed before these tests or biomarkers can be used more routinely to study risk or aid in diagnosis,” Edelmayer said.
 

Ideal Candidates for Alzheimer’s Disease Blood Testing?

Experts agree that blood tests represent a convenient and scalable option to address the anticipated surge in demand for biomarker testing with the availability of disease-modifying treatments. For now, however, they are not for all older adults worried about their memory.

“Current practice should focus on using these blood biomarkers in individuals with cognitive impairment rather than in those with normal cognition or subjective cognitive decline until further research demonstrates effective interventions for individuals considered cognitively normal with elevated levels of amyloid,” the authors of a recent JAMA editorial noted.

At Mount Sinai, “we’re not starting with stone-cold asymptomatic individuals. But ultimately, this is what the blood tests are intended for — screening,” Elahi noted.

She also noted that Mount Sinai has a “very diverse population” — some with young onset cognitive symptoms, so the entry criteria for testing are “very wide.”

“Anyone above age 40 with symptoms can qualify to get a blood test. We do ask at this stage that either the individual report symptoms or someone in their life or their clinician be worried about their cognition or their brain function,” Elahi said.
 

Ethical Considerations, Counseling

Elahi emphasized the importance of counseling patients who come to the clinic seeking an Alzheimer’s disease blood test. This should include how the diagnostic process will unfold and what the next steps are with a given result.

Elahi said patients need to be informed that Alzheimer’s disease blood biomarkers are still “relatively new,” and a test can help a patient “know the likelihood of having the disease, but it won’t be 100% definitive.”

To ensure the ethical principle of “do no harm,” counseling should ensure that patients are fully prepared for the implications of the test results and ensure that the decision to test aligns with the patient’s readiness and well-being, Elahi said.

Edelmayer said the forthcoming clinical practice guidelines will provide “evidence-based recommendations for physicians to help guide them through the decision-making process around who should be tested and when. In the meantime, the Alzheimer’s Association urges providers to refer to the 2022 appropriate use recommendations for blood tests in clinical practice and trial settings.”

Mielke has served on scientific advisory boards and/or having consulted for Acadia, Biogen, Eisai, LabCorp, Lilly, Merck, PeerView Institute, Roche, Siemens Healthineers, and Sunbird Bio. Edelmayer and Elahi had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease, the need for accurate and early diagnosis is crucial.

Blood-based biomarkers offer a promising alternative to amyloid PET scans and cerebrospinal fluid (CSF) analysis and are being increasingly used in clinical practice to support an Alzheimer’s disease diagnosis.

Recently, an expert workgroup convened by the Global CEO Initiative on Alzheimer’s Disease published recommendations for the clinical implementation of Alzheimer’s disease blood-based biomarkers.

“Our hope was to provide some recommendations that clinicians could use to develop the best pathways for their clinical practice,” said workgroup co-chair Michelle M. Mielke, PhD, with Wake Forest University School of Medicine, Winston-Salem, North Carolina.
 

Triage and Confirmatory Pathways

The group recommends two implementation pathways for Alzheimer’s disease blood biomarkers — one for current use for triaging and another for future use to confirm amyloid pathology once blood biomarker tests have reached sufficient performance for this purpose.

In the triage pathway, a negative blood biomarker test would flag individuals unlikely to have detectable brain amyloid pathology. This outcome would prompt clinicians to focus on evaluating non–Alzheimer’s disease-related causes of cognitive impairment, which may streamline the diagnosis of other causes of cognitive impairment, the authors said.

A positive triage blood test would suggest a higher likelihood of amyloid pathology and prompt referral to secondary care for further assessment and consideration for a second, more accurate test, such as amyloid PET or CSF for amyloid confirmation.

In the confirmatory pathway, a positive blood biomarker test result would identify amyloid pathology without the need for a second test, providing a faster route to diagnosis, the authors noted.

Mielke emphasized that these recommendations represent a “first step” and will need to be updated as experiences with the Alzheimer’s disease blood biomarkers in clinical care increase and additional barriers and facilitators are identified.

“These updates will likely include community-informed approaches that incorporate feedback from patients as well as healthcare providers, alongside results from validation in diverse real-world settings,” said workgroup co-chair Chi Udeh-Momoh, PhD, MSc, with Wake Forest University School of Medicine and the Brain and Mind Institute, Aga Khan University, Nairobi, Kenya.

The Alzheimer’s Association published “appropriate use” recommendations for blood biomarkers in 2022.

“Currently, the Alzheimer’s Association is building an updated library of clinical guidance that distills the scientific evidence using de novo systematic reviews and translates them into clear and actionable recommendations for clinical practice,” said Rebecca M. Edelmayer, PhD, vice president of scientific engagement, Alzheimer’s Association.

“The first major effort with our new process will be the upcoming Evidence-based Clinical Practice Guideline on the Use of Blood-based Biomarkers (BBMs) in Specialty Care Settings. This guideline’s recommendations will be published in early 2025,” Edelmayer said.
 

Availability and Accuracy

Research has shown that amyloid beta and tau protein blood biomarkers — especially a high plasma phosphorylated (p)–tau217 levels — are highly accurate in identifying Alzheimer’s disease in patients with cognitive symptoms attending primary and secondary care clinics.

Several tests targeting plasma p-tau217 are now available for use. They include the PrecivityAD2 blood test from C2N Diagnostics and the Simoa p-Tau 217 Planar Kit and LucentAD p-Tau 217 — both from Quanterix.

In a recent head-to-head comparison of seven leading blood tests for AD pathology, measures of plasma p-tau217, either individually or in combination with other plasma biomarkers, had the strongest relationships with Alzheimer’s disease outcomes.

A recent Swedish study showed that the PrecivityAD2 test had an accuracy of 91% for correctly classifying clinical, biomarker-verified Alzheimer’s disease.

“We’ve been using these blood biomarkers in research for a long time and we’re now taking the jump to start using them in clinic to risk stratify patients,” said Fanny Elahi, MD, PhD, director of fluid biomarker research for the Barbara and Maurice Deane Center for Wellness and Cognitive Health at Icahn Mount Sinai in New York City.

New York’s Mount Sinai Health System is among the first in the northeast to offer blood tests across primary and specialty care settings for early diagnosis of AD and related dementias.

Edelmayer cautioned, “There is no single, stand-alone test to diagnose Alzheimer’s disease today. Blood testing is one piece of the diagnostic process.”

“Currently, physicians use well-established diagnostic tools combined with medical history and other information, including neurological exams, cognitive and functional assessments as well as brain imaging and spinal fluid analysis and blood to make an accurate diagnosis and to understand which patients are eligible for approved treatments,” she said.

There are also emerging biomarkers in the research pipeline, Edelmayer said.

“For example, some researchers think retinal imaging has the potential to detect biological signs of Alzheimer’s disease within certain areas of the eye,” she explained.

“Other emerging biomarkers include examining components in saliva and the skin for signals that may indicate early biological changes in the brain. These biomarkers are still very exploratory, and more research is needed before these tests or biomarkers can be used more routinely to study risk or aid in diagnosis,” Edelmayer said.
 

Ideal Candidates for Alzheimer’s Disease Blood Testing?

Experts agree that blood tests represent a convenient and scalable option to address the anticipated surge in demand for biomarker testing with the availability of disease-modifying treatments. For now, however, they are not for all older adults worried about their memory.

“Current practice should focus on using these blood biomarkers in individuals with cognitive impairment rather than in those with normal cognition or subjective cognitive decline until further research demonstrates effective interventions for individuals considered cognitively normal with elevated levels of amyloid,” the authors of a recent JAMA editorial noted.

At Mount Sinai, “we’re not starting with stone-cold asymptomatic individuals. But ultimately, this is what the blood tests are intended for — screening,” Elahi noted.

She also noted that Mount Sinai has a “very diverse population” — some with young onset cognitive symptoms, so the entry criteria for testing are “very wide.”

“Anyone above age 40 with symptoms can qualify to get a blood test. We do ask at this stage that either the individual report symptoms or someone in their life or their clinician be worried about their cognition or their brain function,” Elahi said.
 

Ethical Considerations, Counseling

Elahi emphasized the importance of counseling patients who come to the clinic seeking an Alzheimer’s disease blood test. This should include how the diagnostic process will unfold and what the next steps are with a given result.

Elahi said patients need to be informed that Alzheimer’s disease blood biomarkers are still “relatively new,” and a test can help a patient “know the likelihood of having the disease, but it won’t be 100% definitive.”

To ensure the ethical principle of “do no harm,” counseling should ensure that patients are fully prepared for the implications of the test results and ensure that the decision to test aligns with the patient’s readiness and well-being, Elahi said.

Edelmayer said the forthcoming clinical practice guidelines will provide “evidence-based recommendations for physicians to help guide them through the decision-making process around who should be tested and when. In the meantime, the Alzheimer’s Association urges providers to refer to the 2022 appropriate use recommendations for blood tests in clinical practice and trial settings.”

Mielke has served on scientific advisory boards and/or having consulted for Acadia, Biogen, Eisai, LabCorp, Lilly, Merck, PeerView Institute, Roche, Siemens Healthineers, and Sunbird Bio. Edelmayer and Elahi had no relevant disclosures.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — At a pathophysiological level, juvenile myasthenia gravis (MG) seems to be identical to the adult form, neuromuscular specialists learned. But there are still important differences between children and their elders that affect pediatric care.

For example, “we have to think a little bit differently about the side effect profiles of the medications and their toxicity because children may react to medications differently,” said Matthew Ginsberg, MD, a pediatric neurologist based in Akron, Ohio, in a presentation at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.

And then there’s the matter of adherence. “It’s hard to get adults to take medication, but a teenager is sometimes an exceptional challenge,” Ginsberg said.
 

Case In Point: A 13-Year-Old With MG

Pediatric MG is rare. Cases in children are estimated to account for 10% of MG cases diagnosed each year. According to a 2020 report, “the majority will present with ptosis and a variable degree of ophthalmoplegia [paralysis of eye muscles].”

Ginsberg highlighted a case of a 13-year-old girl who’d been healthy but developed fatigable ptosis and mild restriction of extraocular movements. The patient’s acetylcholine receptor antibodies were very elevated, but she didn’t have MuSK antibodies.

“This isn’t a diagnostic conundrum. She has autoimmune myasthenia gravis with ocular manifestations,” Ginsberg said. “For someone like this, whether it’s an adult or a child, many people would start symptomatic treatment with an acetylcholinesterase inhibitor like pyridostigmine.”

The use of the drug in children is similar to that in adults, he said, although weight-based dosing is used. “Usually it’s around 3-7 mg/kg/d, but it’s still very individualized based on patient response.” The timing of symptoms can affect the distribution of doses throughout the day, he said.

“There are extended-release formulations of the medication, and I think some people use them more than I do,” he said. “The side effects are basically similar to adults. Most of the patients I have on it tolerate it really well and don’t have a lot of the muscarinic side effects that you would expect.”
 

Consider Prescription Eye Drops for Ptosis

Alpha-1A agonists oxymetazoline and apraclonidine in the form of topical eye drops can help with ptosis. “They potentially avoid some of the systemic toxicity of the other medications,” Ginsberg said. “So they might be an option if you’re really just trying to target ptosis as a symptom.”

However, it can be difficult to get insurers to cover these medications, he said.

The 13-year-old patient initially improved but developed difficulty walking. “Her hands began to feel heavy, and she had difficulty chewing and nasal regurgitation. On her exam, she still had fatigable ptosis plus hypernasal speech and generalized weakness. At this point, we’re starting to see that she has generalized myasthenia gravis that may be an impending crisis.”
 

The Young Patient Worsens. Now What?

The patient was admitted and given intravenous immunoglobulin at 2 g/kg over a couple days. But her symptoms worsened following initial improvement.

Glucocorticoids can play a larger role in treatment at this stage, and the patient was initially on prednisone. But there are reasons for caution, including effects on bone growth and interference with live vaccines.

However, live vaccines aren’t common in children, with the exception of the MMRV vaccine, he said. “It’s worth noting that you can give that second dose as early as 3 months after the initial one, so most patients really should be able to complete a course before they start on immunosuppression,” he said.

Another option is immunotherapy. “There’s a really large menu of options for immunotherapy in myasthenia gravis right now,” Ginsberg said. “It’s great that we have all these options, but it adds to the complexity.”

Rituximab may be considered based on early data, he said. And thymectomy — removal of the thymus gland — should be considered early.
 

Don’t Neglect Supportive Care

Ginsberg urged colleagues to consider supportive care measures. Advocacy groups such as the Myasthenia Gravis Foundation of America can help with weight management and diet/exercise counseling, especially in patients taking glucocorticoids.

He added that “school accommodations are very important in this age group. They might need a plan, for example, to have modified gym class or an excuse not to carry a book bag between classes.”

How did the 13-year-old do? She underwent thymectomy, and her disease remained stable after 6 months. “Her rituximab was discontinued,” Ginsberg said. “She considered participating in a clinical trial but then started seeing improvements. About a year after the thymectomy, she just stopped her steroids on her own, and she was fine.”

Ginsberg had no disclosures.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — At a pathophysiological level, juvenile myasthenia gravis (MG) seems to be identical to the adult form, neuromuscular specialists learned. But there are still important differences between children and their elders that affect pediatric care.

For example, “we have to think a little bit differently about the side effect profiles of the medications and their toxicity because children may react to medications differently,” said Matthew Ginsberg, MD, a pediatric neurologist based in Akron, Ohio, in a presentation at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.

And then there’s the matter of adherence. “It’s hard to get adults to take medication, but a teenager is sometimes an exceptional challenge,” Ginsberg said.
 

Case In Point: A 13-Year-Old With MG

Pediatric MG is rare. Cases in children are estimated to account for 10% of MG cases diagnosed each year. According to a 2020 report, “the majority will present with ptosis and a variable degree of ophthalmoplegia [paralysis of eye muscles].”

Ginsberg highlighted a case of a 13-year-old girl who’d been healthy but developed fatigable ptosis and mild restriction of extraocular movements. The patient’s acetylcholine receptor antibodies were very elevated, but she didn’t have MuSK antibodies.

“This isn’t a diagnostic conundrum. She has autoimmune myasthenia gravis with ocular manifestations,” Ginsberg said. “For someone like this, whether it’s an adult or a child, many people would start symptomatic treatment with an acetylcholinesterase inhibitor like pyridostigmine.”

The use of the drug in children is similar to that in adults, he said, although weight-based dosing is used. “Usually it’s around 3-7 mg/kg/d, but it’s still very individualized based on patient response.” The timing of symptoms can affect the distribution of doses throughout the day, he said.

“There are extended-release formulations of the medication, and I think some people use them more than I do,” he said. “The side effects are basically similar to adults. Most of the patients I have on it tolerate it really well and don’t have a lot of the muscarinic side effects that you would expect.”
 

Consider Prescription Eye Drops for Ptosis

Alpha-1A agonists oxymetazoline and apraclonidine in the form of topical eye drops can help with ptosis. “They potentially avoid some of the systemic toxicity of the other medications,” Ginsberg said. “So they might be an option if you’re really just trying to target ptosis as a symptom.”

However, it can be difficult to get insurers to cover these medications, he said.

The 13-year-old patient initially improved but developed difficulty walking. “Her hands began to feel heavy, and she had difficulty chewing and nasal regurgitation. On her exam, she still had fatigable ptosis plus hypernasal speech and generalized weakness. At this point, we’re starting to see that she has generalized myasthenia gravis that may be an impending crisis.”
 

The Young Patient Worsens. Now What?

The patient was admitted and given intravenous immunoglobulin at 2 g/kg over a couple days. But her symptoms worsened following initial improvement.

Glucocorticoids can play a larger role in treatment at this stage, and the patient was initially on prednisone. But there are reasons for caution, including effects on bone growth and interference with live vaccines.

However, live vaccines aren’t common in children, with the exception of the MMRV vaccine, he said. “It’s worth noting that you can give that second dose as early as 3 months after the initial one, so most patients really should be able to complete a course before they start on immunosuppression,” he said.

Another option is immunotherapy. “There’s a really large menu of options for immunotherapy in myasthenia gravis right now,” Ginsberg said. “It’s great that we have all these options, but it adds to the complexity.”

Rituximab may be considered based on early data, he said. And thymectomy — removal of the thymus gland — should be considered early.
 

Don’t Neglect Supportive Care

Ginsberg urged colleagues to consider supportive care measures. Advocacy groups such as the Myasthenia Gravis Foundation of America can help with weight management and diet/exercise counseling, especially in patients taking glucocorticoids.

He added that “school accommodations are very important in this age group. They might need a plan, for example, to have modified gym class or an excuse not to carry a book bag between classes.”

How did the 13-year-old do? She underwent thymectomy, and her disease remained stable after 6 months. “Her rituximab was discontinued,” Ginsberg said. “She considered participating in a clinical trial but then started seeing improvements. About a year after the thymectomy, she just stopped her steroids on her own, and she was fine.”

Ginsberg had no disclosures.
 

A version of this article appeared on Medscape.com.

SAVANNAH, GEORGIA — At a pathophysiological level, juvenile myasthenia gravis (MG) seems to be identical to the adult form, neuromuscular specialists learned. But there are still important differences between children and their elders that affect pediatric care.

For example, “we have to think a little bit differently about the side effect profiles of the medications and their toxicity because children may react to medications differently,” said Matthew Ginsberg, MD, a pediatric neurologist based in Akron, Ohio, in a presentation at the American Association of Neuromuscular & Electrodiagnostic Medicine (AANEM) 2024.

And then there’s the matter of adherence. “It’s hard to get adults to take medication, but a teenager is sometimes an exceptional challenge,” Ginsberg said.
 

Case In Point: A 13-Year-Old With MG

Pediatric MG is rare. Cases in children are estimated to account for 10% of MG cases diagnosed each year. According to a 2020 report, “the majority will present with ptosis and a variable degree of ophthalmoplegia [paralysis of eye muscles].”

Ginsberg highlighted a case of a 13-year-old girl who’d been healthy but developed fatigable ptosis and mild restriction of extraocular movements. The patient’s acetylcholine receptor antibodies were very elevated, but she didn’t have MuSK antibodies.

“This isn’t a diagnostic conundrum. She has autoimmune myasthenia gravis with ocular manifestations,” Ginsberg said. “For someone like this, whether it’s an adult or a child, many people would start symptomatic treatment with an acetylcholinesterase inhibitor like pyridostigmine.”

The use of the drug in children is similar to that in adults, he said, although weight-based dosing is used. “Usually it’s around 3-7 mg/kg/d, but it’s still very individualized based on patient response.” The timing of symptoms can affect the distribution of doses throughout the day, he said.

“There are extended-release formulations of the medication, and I think some people use them more than I do,” he said. “The side effects are basically similar to adults. Most of the patients I have on it tolerate it really well and don’t have a lot of the muscarinic side effects that you would expect.”
 

Consider Prescription Eye Drops for Ptosis

Alpha-1A agonists oxymetazoline and apraclonidine in the form of topical eye drops can help with ptosis. “They potentially avoid some of the systemic toxicity of the other medications,” Ginsberg said. “So they might be an option if you’re really just trying to target ptosis as a symptom.”

However, it can be difficult to get insurers to cover these medications, he said.

The 13-year-old patient initially improved but developed difficulty walking. “Her hands began to feel heavy, and she had difficulty chewing and nasal regurgitation. On her exam, she still had fatigable ptosis plus hypernasal speech and generalized weakness. At this point, we’re starting to see that she has generalized myasthenia gravis that may be an impending crisis.”
 

The Young Patient Worsens. Now What?

The patient was admitted and given intravenous immunoglobulin at 2 g/kg over a couple days. But her symptoms worsened following initial improvement.

Glucocorticoids can play a larger role in treatment at this stage, and the patient was initially on prednisone. But there are reasons for caution, including effects on bone growth and interference with live vaccines.

However, live vaccines aren’t common in children, with the exception of the MMRV vaccine, he said. “It’s worth noting that you can give that second dose as early as 3 months after the initial one, so most patients really should be able to complete a course before they start on immunosuppression,” he said.

Another option is immunotherapy. “There’s a really large menu of options for immunotherapy in myasthenia gravis right now,” Ginsberg said. “It’s great that we have all these options, but it adds to the complexity.”

Rituximab may be considered based on early data, he said. And thymectomy — removal of the thymus gland — should be considered early.
 

Don’t Neglect Supportive Care

Ginsberg urged colleagues to consider supportive care measures. Advocacy groups such as the Myasthenia Gravis Foundation of America can help with weight management and diet/exercise counseling, especially in patients taking glucocorticoids.

He added that “school accommodations are very important in this age group. They might need a plan, for example, to have modified gym class or an excuse not to carry a book bag between classes.”

How did the 13-year-old do? She underwent thymectomy, and her disease remained stable after 6 months. “Her rituximab was discontinued,” Ginsberg said. “She considered participating in a clinical trial but then started seeing improvements. About a year after the thymectomy, she just stopped her steroids on her own, and she was fine.”

Ginsberg had no disclosures.
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved foscarbidopa and foslevodopa (Vyalev, AbbVie), a solution of carbidopa and levodopa prodrugs for 24-hour continuous subcutaneous infusion, for the treatment of motor fluctuations in adults with advanced Parkinson’s disease. 

Due to the progressive nature of Parkinson’s disease, “oral medications are eventually no longer as effective at motor symptom control and surgical treatment may be required. This new, non-surgical regimen provides continuous delivery of levodopa morning, day, and night,” Robert A. Hauser, MD, MBA, director of the Parkinson’s and Movement Disorder Center at the University of South Florida, Tampa, said in a news release. 

The FDA approval was supported by results of a 12-week, phase 3 study evaluating the efficacy of continuous subcutaneous infusion foscarbidopa/foslevodopa in adults with advanced Parkinson’s disease compared with oral immediate-release carbidopa/levodopa. 

The study showed that patients treated with foscarbidopa/foslevodopa had superior improvement in motor fluctuations, with increased “on” time without troublesome dyskinesia and decreased “off” time, compared with peers receiving oral immediate-release carbidopa/levodopa.

At week 12, the increase in “on” time without troublesome dyskinesia was 2.72 hours for foscarbidopa/foslevodopa continuous infusion versus 0.97 hours for carbidopa/levodopa (P =.0083). 

Improvements in “on” time were observed as early as the first week and persisted throughout the 12 weeks.

The approval of foscarbidopa/foslevodopa for advanced Parkinson’s disease was also supported by a 52-week, open-label study which evaluated the long-term safety and efficacy of the drug.

Most adverse reactions with foscarbidopa/foslevodopa were non-serious and mild or moderate in severity. The most frequent adverse reactions were infusion site events, hallucinations, and dyskinesia.

Full prescribing information is available online. 

AbbVie said coverage for Medicare patients is expected in the second half of 2025.
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved foscarbidopa and foslevodopa (Vyalev, AbbVie), a solution of carbidopa and levodopa prodrugs for 24-hour continuous subcutaneous infusion, for the treatment of motor fluctuations in adults with advanced Parkinson’s disease. 

Due to the progressive nature of Parkinson’s disease, “oral medications are eventually no longer as effective at motor symptom control and surgical treatment may be required. This new, non-surgical regimen provides continuous delivery of levodopa morning, day, and night,” Robert A. Hauser, MD, MBA, director of the Parkinson’s and Movement Disorder Center at the University of South Florida, Tampa, said in a news release. 

The FDA approval was supported by results of a 12-week, phase 3 study evaluating the efficacy of continuous subcutaneous infusion foscarbidopa/foslevodopa in adults with advanced Parkinson’s disease compared with oral immediate-release carbidopa/levodopa. 

The study showed that patients treated with foscarbidopa/foslevodopa had superior improvement in motor fluctuations, with increased “on” time without troublesome dyskinesia and decreased “off” time, compared with peers receiving oral immediate-release carbidopa/levodopa.

At week 12, the increase in “on” time without troublesome dyskinesia was 2.72 hours for foscarbidopa/foslevodopa continuous infusion versus 0.97 hours for carbidopa/levodopa (P =.0083). 

Improvements in “on” time were observed as early as the first week and persisted throughout the 12 weeks.

The approval of foscarbidopa/foslevodopa for advanced Parkinson’s disease was also supported by a 52-week, open-label study which evaluated the long-term safety and efficacy of the drug.

Most adverse reactions with foscarbidopa/foslevodopa were non-serious and mild or moderate in severity. The most frequent adverse reactions were infusion site events, hallucinations, and dyskinesia.

Full prescribing information is available online. 

AbbVie said coverage for Medicare patients is expected in the second half of 2025.
 

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved foscarbidopa and foslevodopa (Vyalev, AbbVie), a solution of carbidopa and levodopa prodrugs for 24-hour continuous subcutaneous infusion, for the treatment of motor fluctuations in adults with advanced Parkinson’s disease. 

Due to the progressive nature of Parkinson’s disease, “oral medications are eventually no longer as effective at motor symptom control and surgical treatment may be required. This new, non-surgical regimen provides continuous delivery of levodopa morning, day, and night,” Robert A. Hauser, MD, MBA, director of the Parkinson’s and Movement Disorder Center at the University of South Florida, Tampa, said in a news release. 

The FDA approval was supported by results of a 12-week, phase 3 study evaluating the efficacy of continuous subcutaneous infusion foscarbidopa/foslevodopa in adults with advanced Parkinson’s disease compared with oral immediate-release carbidopa/levodopa. 

The study showed that patients treated with foscarbidopa/foslevodopa had superior improvement in motor fluctuations, with increased “on” time without troublesome dyskinesia and decreased “off” time, compared with peers receiving oral immediate-release carbidopa/levodopa.

At week 12, the increase in “on” time without troublesome dyskinesia was 2.72 hours for foscarbidopa/foslevodopa continuous infusion versus 0.97 hours for carbidopa/levodopa (P =.0083). 

Improvements in “on” time were observed as early as the first week and persisted throughout the 12 weeks.

The approval of foscarbidopa/foslevodopa for advanced Parkinson’s disease was also supported by a 52-week, open-label study which evaluated the long-term safety and efficacy of the drug.

Most adverse reactions with foscarbidopa/foslevodopa were non-serious and mild or moderate in severity. The most frequent adverse reactions were infusion site events, hallucinations, and dyskinesia.

Full prescribing information is available online. 

AbbVie said coverage for Medicare patients is expected in the second half of 2025.
 

A version of this article appeared on Medscape.com.

The American Stroke Association (ASA) has issued a new updated guideline for primary stroke prevention.

The first update in a decade, the 2024 Guideline for the Primary Prevention of Stroke, replaces the 2014 version and is intended to be a resource for clinicians to help them implement a variety of prevention strategies in patients with no previous history of stroke. It aligns with the American Heart Association’s Life’s Essential 8.

“This guideline is an important and timely update from 2014 for multiple reasons. First, there have been groundbreaking clinical trials that have been published with new medications to not only treat the target disease [including] diabetes/obesity and high cholesterol], but also lower the risk of stroke and heart disease,” said chair of the guideline writing group, Cheryl D. Bushnell, MD, MHS, FAHA, and vice chair of the research, Department of Neurology, Wake Forest University School of Medicine, Winston-Salem, North Carolina.

It was published online on October 21 in Stroke.
 

Up to 80% of Strokes Preventable

Estimates show that every year in the United States, more than 500,000 individuals have a first stroke. However, the guideline authors noted that up to 80% of strokes may be preventable. As a result, they called for better primary stroke prevention that includes improved screening and lifestyle changes.

This includes adoption of the Mediterranean diet, which has been shown to significantly reduce stroke risk, especially when supplemented with consumption of nuts and olive oil.

The guideline recommendations also emphasize the need for physical activity, which is “essential” for cardiovascular health and stroke reduction. The authors underscored this point and provided a new recommendation to screen for sedentary behavior and advise patients to avoid inactivity and engage in regular moderate to vigorous physical activity.

Another new recommendation is based on “robust” data that glucagon-like peptide 1 receptor agonists (GLP-1s) significantly improve the management of type 2 diabetes, weight loss, and lower the risk for cardiovascular disease. As a result, guideline authors called for the use of GLP-1s in patients with diabetes and high cardiovascular risk or established cardiovascular disease.

“The glucagon-like peptide receptor agonists have been shown to not only drastically reduce blood sugars in patients with diabetes, but they also lead to significant weight loss in these patients, which has many downstream benefits. Together, this reduces the risk of stroke and other complications of diabetes,” said Bushnell. 

She also noted that another drug class introduced since the 2014 guidelines were published, proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, have proven to be highly effective in lowering low-density lipoprotein cholesterol. These medications have also been shown to reduce the risk for stroke.
 

At Least Two Meds Needed to Reduce BP

Effective blood pressure (BP) management is crucial for stroke prevention. Randomized controlled trials show that a single antihypertensive medication helps only about 30% of participants reach their BP target.

Most patients only achieve the desired BP target with two to three medications. In line with these data, the committee recommends using at least two antihypertensives for primary stroke prevention in most patients who require BP-lowering medications for hypertension.

In patients with antiphospholipid syndrome or systemic lupus erythematosus and no history of stroke or unprovoked venous thromboembolism, the authors recommended antiplatelet therapy to prevent stroke. They added that patients with antiphospholipid syndrome who have had a prior unprovoked venous thrombosis will likely benefit from vitamin K antagonist therapy (target international normalized ratio, 2-3) over direct oral anticoagulants.
 

Emphasis on Women’s Health

Preventing pregnancy-related stroke is achieved primarily by managing hypertension, the guideline authors noted. They recommended treating verified systolic BP over 160 mm Hg or diastolic BP over 110 mm Hg during pregnancy and up to 6 weeks postpartum to lower the risk for fatal maternal intracerebral hemorrhage.

They noted that adverse pregnancy outcomes are also common and linked to chronic hypertension, which increases stroke risk later in life. Therefore, they recommended screening for these outcomes to assess and manage vascular risk factors. The guideline includes a screening tool to help with this in clinical practice.

Endometriosis, premature ovarian failure (before age 40 years), and early-onset menopause (before age 45 years) are all associated with increased stroke risk. As a result, the guideline authors said screening for all three of these conditions is a “reasonable step in the evaluation and management of vascular risk factors in these individuals to reduce stroke risk.”

Finally, the guideline authors addressed primary stroke prevention in transgender individuals, noting that transgender women undergoing estrogen therapy for gender affirmation are at increased risk. They emphasized that evaluating and modifying risk factors could be beneficial for reducing stroke risk in this patient population.
 

Challenges Lie Ahead

Now that the guideline has been published, the challenge lies in determining how best to implement “its screening recommendations in primary care and other practices when these clinicians are already pushed to see as many patients as possible,” Bushnell said.

Development of screening tools that can be easily incorporated into the clinic visit or the electronic health record, as well as additional personnel to provide counseling, are probably needed to disseminate them, she added. 

Bushnell also emphasized that the guideline includes a strong focus on social determinants of health and related social needs. 

“We worked hard to use inclusive language and to consider populations historically excluded from research. In acknowledging that social determinants of health including access to healthcare, access to education, economic stability, neighborhood and geographic location, and social and community context have a tremendous influence on stroke risk, we describe how these factors are closely tied to the prevalence and management of many medical risks like obesity, hypertension, and diabetes.

“Our recommendations offer practical steps for screening and addressing essential health-related social needs, including access to nutritious food, stable housing, and reliable transportation, within clinical practice. By considering these factors more comprehensively, we believe we can make meaningful strides toward reducing the disparities in stroke risk,” said Bushnell. 
 

A version of this article appeared on Medscape.com.

The American Stroke Association (ASA) has issued a new updated guideline for primary stroke prevention.

The first update in a decade, the 2024 Guideline for the Primary Prevention of Stroke, replaces the 2014 version and is intended to be a resource for clinicians to help them implement a variety of prevention strategies in patients with no previous history of stroke. It aligns with the American Heart Association’s Life’s Essential 8.

“This guideline is an important and timely update from 2014 for multiple reasons. First, there have been groundbreaking clinical trials that have been published with new medications to not only treat the target disease [including] diabetes/obesity and high cholesterol], but also lower the risk of stroke and heart disease,” said chair of the guideline writing group, Cheryl D. Bushnell, MD, MHS, FAHA, and vice chair of the research, Department of Neurology, Wake Forest University School of Medicine, Winston-Salem, North Carolina.

It was published online on October 21 in Stroke.
 

Up to 80% of Strokes Preventable

Estimates show that every year in the United States, more than 500,000 individuals have a first stroke. However, the guideline authors noted that up to 80% of strokes may be preventable. As a result, they called for better primary stroke prevention that includes improved screening and lifestyle changes.

This includes adoption of the Mediterranean diet, which has been shown to significantly reduce stroke risk, especially when supplemented with consumption of nuts and olive oil.

The guideline recommendations also emphasize the need for physical activity, which is “essential” for cardiovascular health and stroke reduction. The authors underscored this point and provided a new recommendation to screen for sedentary behavior and advise patients to avoid inactivity and engage in regular moderate to vigorous physical activity.

Another new recommendation is based on “robust” data that glucagon-like peptide 1 receptor agonists (GLP-1s) significantly improve the management of type 2 diabetes, weight loss, and lower the risk for cardiovascular disease. As a result, guideline authors called for the use of GLP-1s in patients with diabetes and high cardiovascular risk or established cardiovascular disease.

“The glucagon-like peptide receptor agonists have been shown to not only drastically reduce blood sugars in patients with diabetes, but they also lead to significant weight loss in these patients, which has many downstream benefits. Together, this reduces the risk of stroke and other complications of diabetes,” said Bushnell. 

She also noted that another drug class introduced since the 2014 guidelines were published, proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, have proven to be highly effective in lowering low-density lipoprotein cholesterol. These medications have also been shown to reduce the risk for stroke.
 

At Least Two Meds Needed to Reduce BP

Effective blood pressure (BP) management is crucial for stroke prevention. Randomized controlled trials show that a single antihypertensive medication helps only about 30% of participants reach their BP target.

Most patients only achieve the desired BP target with two to three medications. In line with these data, the committee recommends using at least two antihypertensives for primary stroke prevention in most patients who require BP-lowering medications for hypertension.

In patients with antiphospholipid syndrome or systemic lupus erythematosus and no history of stroke or unprovoked venous thromboembolism, the authors recommended antiplatelet therapy to prevent stroke. They added that patients with antiphospholipid syndrome who have had a prior unprovoked venous thrombosis will likely benefit from vitamin K antagonist therapy (target international normalized ratio, 2-3) over direct oral anticoagulants.
 

Emphasis on Women’s Health

Preventing pregnancy-related stroke is achieved primarily by managing hypertension, the guideline authors noted. They recommended treating verified systolic BP over 160 mm Hg or diastolic BP over 110 mm Hg during pregnancy and up to 6 weeks postpartum to lower the risk for fatal maternal intracerebral hemorrhage.

They noted that adverse pregnancy outcomes are also common and linked to chronic hypertension, which increases stroke risk later in life. Therefore, they recommended screening for these outcomes to assess and manage vascular risk factors. The guideline includes a screening tool to help with this in clinical practice.

Endometriosis, premature ovarian failure (before age 40 years), and early-onset menopause (before age 45 years) are all associated with increased stroke risk. As a result, the guideline authors said screening for all three of these conditions is a “reasonable step in the evaluation and management of vascular risk factors in these individuals to reduce stroke risk.”

Finally, the guideline authors addressed primary stroke prevention in transgender individuals, noting that transgender women undergoing estrogen therapy for gender affirmation are at increased risk. They emphasized that evaluating and modifying risk factors could be beneficial for reducing stroke risk in this patient population.
 

Challenges Lie Ahead

Now that the guideline has been published, the challenge lies in determining how best to implement “its screening recommendations in primary care and other practices when these clinicians are already pushed to see as many patients as possible,” Bushnell said.

Development of screening tools that can be easily incorporated into the clinic visit or the electronic health record, as well as additional personnel to provide counseling, are probably needed to disseminate them, she added. 

Bushnell also emphasized that the guideline includes a strong focus on social determinants of health and related social needs. 

“We worked hard to use inclusive language and to consider populations historically excluded from research. In acknowledging that social determinants of health including access to healthcare, access to education, economic stability, neighborhood and geographic location, and social and community context have a tremendous influence on stroke risk, we describe how these factors are closely tied to the prevalence and management of many medical risks like obesity, hypertension, and diabetes.

“Our recommendations offer practical steps for screening and addressing essential health-related social needs, including access to nutritious food, stable housing, and reliable transportation, within clinical practice. By considering these factors more comprehensively, we believe we can make meaningful strides toward reducing the disparities in stroke risk,” said Bushnell. 
 

A version of this article appeared on Medscape.com.

The American Stroke Association (ASA) has issued a new updated guideline for primary stroke prevention.

The first update in a decade, the 2024 Guideline for the Primary Prevention of Stroke, replaces the 2014 version and is intended to be a resource for clinicians to help them implement a variety of prevention strategies in patients with no previous history of stroke. It aligns with the American Heart Association’s Life’s Essential 8.

“This guideline is an important and timely update from 2014 for multiple reasons. First, there have been groundbreaking clinical trials that have been published with new medications to not only treat the target disease [including] diabetes/obesity and high cholesterol], but also lower the risk of stroke and heart disease,” said chair of the guideline writing group, Cheryl D. Bushnell, MD, MHS, FAHA, and vice chair of the research, Department of Neurology, Wake Forest University School of Medicine, Winston-Salem, North Carolina.

It was published online on October 21 in Stroke.
 

Up to 80% of Strokes Preventable

Estimates show that every year in the United States, more than 500,000 individuals have a first stroke. However, the guideline authors noted that up to 80% of strokes may be preventable. As a result, they called for better primary stroke prevention that includes improved screening and lifestyle changes.

This includes adoption of the Mediterranean diet, which has been shown to significantly reduce stroke risk, especially when supplemented with consumption of nuts and olive oil.

The guideline recommendations also emphasize the need for physical activity, which is “essential” for cardiovascular health and stroke reduction. The authors underscored this point and provided a new recommendation to screen for sedentary behavior and advise patients to avoid inactivity and engage in regular moderate to vigorous physical activity.

Another new recommendation is based on “robust” data that glucagon-like peptide 1 receptor agonists (GLP-1s) significantly improve the management of type 2 diabetes, weight loss, and lower the risk for cardiovascular disease. As a result, guideline authors called for the use of GLP-1s in patients with diabetes and high cardiovascular risk or established cardiovascular disease.

“The glucagon-like peptide receptor agonists have been shown to not only drastically reduce blood sugars in patients with diabetes, but they also lead to significant weight loss in these patients, which has many downstream benefits. Together, this reduces the risk of stroke and other complications of diabetes,” said Bushnell. 

She also noted that another drug class introduced since the 2014 guidelines were published, proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, have proven to be highly effective in lowering low-density lipoprotein cholesterol. These medications have also been shown to reduce the risk for stroke.
 

At Least Two Meds Needed to Reduce BP

Effective blood pressure (BP) management is crucial for stroke prevention. Randomized controlled trials show that a single antihypertensive medication helps only about 30% of participants reach their BP target.

Most patients only achieve the desired BP target with two to three medications. In line with these data, the committee recommends using at least two antihypertensives for primary stroke prevention in most patients who require BP-lowering medications for hypertension.

In patients with antiphospholipid syndrome or systemic lupus erythematosus and no history of stroke or unprovoked venous thromboembolism, the authors recommended antiplatelet therapy to prevent stroke. They added that patients with antiphospholipid syndrome who have had a prior unprovoked venous thrombosis will likely benefit from vitamin K antagonist therapy (target international normalized ratio, 2-3) over direct oral anticoagulants.
 

Emphasis on Women’s Health

Preventing pregnancy-related stroke is achieved primarily by managing hypertension, the guideline authors noted. They recommended treating verified systolic BP over 160 mm Hg or diastolic BP over 110 mm Hg during pregnancy and up to 6 weeks postpartum to lower the risk for fatal maternal intracerebral hemorrhage.

They noted that adverse pregnancy outcomes are also common and linked to chronic hypertension, which increases stroke risk later in life. Therefore, they recommended screening for these outcomes to assess and manage vascular risk factors. The guideline includes a screening tool to help with this in clinical practice.

Endometriosis, premature ovarian failure (before age 40 years), and early-onset menopause (before age 45 years) are all associated with increased stroke risk. As a result, the guideline authors said screening for all three of these conditions is a “reasonable step in the evaluation and management of vascular risk factors in these individuals to reduce stroke risk.”

Finally, the guideline authors addressed primary stroke prevention in transgender individuals, noting that transgender women undergoing estrogen therapy for gender affirmation are at increased risk. They emphasized that evaluating and modifying risk factors could be beneficial for reducing stroke risk in this patient population.
 

Challenges Lie Ahead

Now that the guideline has been published, the challenge lies in determining how best to implement “its screening recommendations in primary care and other practices when these clinicians are already pushed to see as many patients as possible,” Bushnell said.

Development of screening tools that can be easily incorporated into the clinic visit or the electronic health record, as well as additional personnel to provide counseling, are probably needed to disseminate them, she added. 

Bushnell also emphasized that the guideline includes a strong focus on social determinants of health and related social needs. 

“We worked hard to use inclusive language and to consider populations historically excluded from research. In acknowledging that social determinants of health including access to healthcare, access to education, economic stability, neighborhood and geographic location, and social and community context have a tremendous influence on stroke risk, we describe how these factors are closely tied to the prevalence and management of many medical risks like obesity, hypertension, and diabetes.

“Our recommendations offer practical steps for screening and addressing essential health-related social needs, including access to nutritious food, stable housing, and reliable transportation, within clinical practice. By considering these factors more comprehensively, we believe we can make meaningful strides toward reducing the disparities in stroke risk,” said Bushnell. 
 

A version of this article appeared on Medscape.com.

The American Heart Association (AHA) has issued a new scientific statement on the link between heart failure, atrial fibrillation, and coronary heart disease and the increased risk for cognitive impairment and dementia.

The statement includes an extensive research review and offers compelling evidence of the inextricable link between heart health and brain health, which investigators said underscores the benefit of early intervention.

The cumulative evidence “confirms that the trajectories of cardiac health and brain health are inextricably intertwined through modifiable and nonmodifiable factors,” the authors wrote.

Investigators say the findings reinforce the message that addressing cardiovascular health early in life may deter the onset or progression of cognitive impairment later on.

And the earlier this is done, the better, said lead author Fernando D. Testai, MD, PhD, a professor of neurology and the vascular neurology section head, Department of Neurology and Rehabilitation, University of Illinois, Chicago.

The statement was published online in Stroke.
 

Bridging the Research Gap

It’s well known that there’s a bidirectional relationship between heart and brain function. For example, heart failure can lead to decreased blood flow that can damage the brain, and stroke in some areas of the brain can affect the heart.

However, that’s only part of the puzzle and doesn’t address all the gaps in the understanding of how cardiovascular disease contributes to cognition, said Testai.

“What we’re trying to do here is to go one step further and describe other connections between the heart and the brain,” he said.

Investigators carried out an extensive PubMed search for heart failure, atrial fibrillation, and coronary heart disease. Researchers detailed the frequency of each condition, mechanisms by which they might cause cognitive impairment, and prospects for prevention and treatment to maintain brain health.

A recurring theme in the paper is the role of inflammation. Evidence shows there are “remarkable similarities in the inflammatory response that takes place,” with both cardiac disease and cognitive decline, said Testai.

Another potential shared mechanism relates to biomarkers, particularly amyloid, which is strongly linked to Alzheimer’s disease.

“But some studies show amyloid can also be present in the heart, especially in patients who have decreased ejection fraction,” said Testai.
 

Robust Heart-Brain Connection

The statement’s authors collected a substantial amount of evidence showing vascular risk factors such as hypertension and diabetes “can change how the brain processes and clears up amyloid,” Testai added.

The paper also provides a compilation of evidence of shared genetic predispositions when it comes to heart and brain disorders.

“We noticed that some genetic signatures that have historically been associated with heart disease seem to also correlate with structural changes in the brain. That means that at the end of the day, some patients may be born with a genetic predisposition to developing both conditions,” said Testai.

This indicates that the link between the two organs “begins as early as conception” and underscores the importance of adopting healthy lifestyle habits as early as possible, he added.

“That means you can avoid bad habits that eventually lead to hypertension, diabetes, and cholesterol, that eventually will lead to cardiac disease, which eventually will lead to stroke, which eventually will lead to cognitive decline,” Testai noted.

However, cardiovascular health is more complicated than having good genes and adhering to a healthy lifestyle. It’s not clear, for example, why some people who should be predisposed to developing heart disease do not develop it, something Testai refers to as enhanced “resilience.”

For example, Hispanic or Latino patients, who have relatively poor cardiovascular risk factor profiles, seem to be less susceptible to developing cardiac disease.
 

More Research Needed

While genetics may partly explain the paradox, Testai believes other protective factors are at play, including strong social support networks.

Testai referred to the AHA’s “Life’s Essential 8” — the eight components of cardiovascular health. These include a healthy diet, participation in physical activity, nicotine avoidance, healthy sleep, healthy weight, and healthy levels of blood lipids, blood glucose, and blood pressure.

More evidence is needed to show that effective management of cardiac disease positively affects cognition. Currently, cognitive measures are rarely included in studies examining various heart disease treatments, said Testai.

“There should probably be an effort to include brain health outcomes in some of the cardiac literature to make sure we can also measure whether the intervention in the heart leads to an advantage for the brain,” he said.

More research is also needed to determine whether immunomodulation has a beneficial effect on the cognitive trajectory, the statement’s authors noted.

They point out that the interpretation and generalizability of the studies described in the statement are confounded by disparate methodologies, including small sample sizes, cross-sectional designs, and underrepresentation of Black and Hispanic individuals.
 

‘An Important Step’

Reached for a comment, Natalia S. Rost, MD, Chief of the Stroke Division at Massachusetts General Hospital and professor of neurology at Harvard Medical School, both in Boston, said this paper “is an important step” in terms of pulling together pertinent information on the topic of heart-brain health.

She praised the authors for gathering evidence on risk factors related to atrial fibrillation, heart failure, and coronary heart disease, which is “the part of the puzzle that is controllable.”

This helps reinforce the message that controlling vascular risk factors helps with brain health, said Rost.

But brain health is “much more complex than just vascular health,” she said. It includes other elements such as freedom from epilepsy, migraine, traumatic brain injury, and adult learning disabilities.

No relevant conflicts of interest were disclosed.

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

The American Heart Association (AHA) has issued a new scientific statement on the link between heart failure, atrial fibrillation, and coronary heart disease and the increased risk for cognitive impairment and dementia.

The statement includes an extensive research review and offers compelling evidence of the inextricable link between heart health and brain health, which investigators said underscores the benefit of early intervention.

The cumulative evidence “confirms that the trajectories of cardiac health and brain health are inextricably intertwined through modifiable and nonmodifiable factors,” the authors wrote.

Investigators say the findings reinforce the message that addressing cardiovascular health early in life may deter the onset or progression of cognitive impairment later on.

And the earlier this is done, the better, said lead author Fernando D. Testai, MD, PhD, a professor of neurology and the vascular neurology section head, Department of Neurology and Rehabilitation, University of Illinois, Chicago.

The statement was published online in Stroke.
 

Bridging the Research Gap

It’s well known that there’s a bidirectional relationship between heart and brain function. For example, heart failure can lead to decreased blood flow that can damage the brain, and stroke in some areas of the brain can affect the heart.

However, that’s only part of the puzzle and doesn’t address all the gaps in the understanding of how cardiovascular disease contributes to cognition, said Testai.

“What we’re trying to do here is to go one step further and describe other connections between the heart and the brain,” he said.

Investigators carried out an extensive PubMed search for heart failure, atrial fibrillation, and coronary heart disease. Researchers detailed the frequency of each condition, mechanisms by which they might cause cognitive impairment, and prospects for prevention and treatment to maintain brain health.

A recurring theme in the paper is the role of inflammation. Evidence shows there are “remarkable similarities in the inflammatory response that takes place,” with both cardiac disease and cognitive decline, said Testai.

Another potential shared mechanism relates to biomarkers, particularly amyloid, which is strongly linked to Alzheimer’s disease.

“But some studies show amyloid can also be present in the heart, especially in patients who have decreased ejection fraction,” said Testai.
 

Robust Heart-Brain Connection

The statement’s authors collected a substantial amount of evidence showing vascular risk factors such as hypertension and diabetes “can change how the brain processes and clears up amyloid,” Testai added.

The paper also provides a compilation of evidence of shared genetic predispositions when it comes to heart and brain disorders.

“We noticed that some genetic signatures that have historically been associated with heart disease seem to also correlate with structural changes in the brain. That means that at the end of the day, some patients may be born with a genetic predisposition to developing both conditions,” said Testai.

This indicates that the link between the two organs “begins as early as conception” and underscores the importance of adopting healthy lifestyle habits as early as possible, he added.

“That means you can avoid bad habits that eventually lead to hypertension, diabetes, and cholesterol, that eventually will lead to cardiac disease, which eventually will lead to stroke, which eventually will lead to cognitive decline,” Testai noted.

However, cardiovascular health is more complicated than having good genes and adhering to a healthy lifestyle. It’s not clear, for example, why some people who should be predisposed to developing heart disease do not develop it, something Testai refers to as enhanced “resilience.”

For example, Hispanic or Latino patients, who have relatively poor cardiovascular risk factor profiles, seem to be less susceptible to developing cardiac disease.
 

More Research Needed

While genetics may partly explain the paradox, Testai believes other protective factors are at play, including strong social support networks.

Testai referred to the AHA’s “Life’s Essential 8” — the eight components of cardiovascular health. These include a healthy diet, participation in physical activity, nicotine avoidance, healthy sleep, healthy weight, and healthy levels of blood lipids, blood glucose, and blood pressure.

More evidence is needed to show that effective management of cardiac disease positively affects cognition. Currently, cognitive measures are rarely included in studies examining various heart disease treatments, said Testai.

“There should probably be an effort to include brain health outcomes in some of the cardiac literature to make sure we can also measure whether the intervention in the heart leads to an advantage for the brain,” he said.

More research is also needed to determine whether immunomodulation has a beneficial effect on the cognitive trajectory, the statement’s authors noted.

They point out that the interpretation and generalizability of the studies described in the statement are confounded by disparate methodologies, including small sample sizes, cross-sectional designs, and underrepresentation of Black and Hispanic individuals.
 

‘An Important Step’

Reached for a comment, Natalia S. Rost, MD, Chief of the Stroke Division at Massachusetts General Hospital and professor of neurology at Harvard Medical School, both in Boston, said this paper “is an important step” in terms of pulling together pertinent information on the topic of heart-brain health.

She praised the authors for gathering evidence on risk factors related to atrial fibrillation, heart failure, and coronary heart disease, which is “the part of the puzzle that is controllable.”

This helps reinforce the message that controlling vascular risk factors helps with brain health, said Rost.

But brain health is “much more complex than just vascular health,” she said. It includes other elements such as freedom from epilepsy, migraine, traumatic brain injury, and adult learning disabilities.

No relevant conflicts of interest were disclosed.

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

The American Heart Association (AHA) has issued a new scientific statement on the link between heart failure, atrial fibrillation, and coronary heart disease and the increased risk for cognitive impairment and dementia.

The statement includes an extensive research review and offers compelling evidence of the inextricable link between heart health and brain health, which investigators said underscores the benefit of early intervention.

The cumulative evidence “confirms that the trajectories of cardiac health and brain health are inextricably intertwined through modifiable and nonmodifiable factors,” the authors wrote.

Investigators say the findings reinforce the message that addressing cardiovascular health early in life may deter the onset or progression of cognitive impairment later on.

And the earlier this is done, the better, said lead author Fernando D. Testai, MD, PhD, a professor of neurology and the vascular neurology section head, Department of Neurology and Rehabilitation, University of Illinois, Chicago.

The statement was published online in Stroke.
 

Bridging the Research Gap

It’s well known that there’s a bidirectional relationship between heart and brain function. For example, heart failure can lead to decreased blood flow that can damage the brain, and stroke in some areas of the brain can affect the heart.

However, that’s only part of the puzzle and doesn’t address all the gaps in the understanding of how cardiovascular disease contributes to cognition, said Testai.

“What we’re trying to do here is to go one step further and describe other connections between the heart and the brain,” he said.

Investigators carried out an extensive PubMed search for heart failure, atrial fibrillation, and coronary heart disease. Researchers detailed the frequency of each condition, mechanisms by which they might cause cognitive impairment, and prospects for prevention and treatment to maintain brain health.

A recurring theme in the paper is the role of inflammation. Evidence shows there are “remarkable similarities in the inflammatory response that takes place,” with both cardiac disease and cognitive decline, said Testai.

Another potential shared mechanism relates to biomarkers, particularly amyloid, which is strongly linked to Alzheimer’s disease.

“But some studies show amyloid can also be present in the heart, especially in patients who have decreased ejection fraction,” said Testai.
 

Robust Heart-Brain Connection

The statement’s authors collected a substantial amount of evidence showing vascular risk factors such as hypertension and diabetes “can change how the brain processes and clears up amyloid,” Testai added.

The paper also provides a compilation of evidence of shared genetic predispositions when it comes to heart and brain disorders.

“We noticed that some genetic signatures that have historically been associated with heart disease seem to also correlate with structural changes in the brain. That means that at the end of the day, some patients may be born with a genetic predisposition to developing both conditions,” said Testai.

This indicates that the link between the two organs “begins as early as conception” and underscores the importance of adopting healthy lifestyle habits as early as possible, he added.

“That means you can avoid bad habits that eventually lead to hypertension, diabetes, and cholesterol, that eventually will lead to cardiac disease, which eventually will lead to stroke, which eventually will lead to cognitive decline,” Testai noted.

However, cardiovascular health is more complicated than having good genes and adhering to a healthy lifestyle. It’s not clear, for example, why some people who should be predisposed to developing heart disease do not develop it, something Testai refers to as enhanced “resilience.”

For example, Hispanic or Latino patients, who have relatively poor cardiovascular risk factor profiles, seem to be less susceptible to developing cardiac disease.
 

More Research Needed

While genetics may partly explain the paradox, Testai believes other protective factors are at play, including strong social support networks.

Testai referred to the AHA’s “Life’s Essential 8” — the eight components of cardiovascular health. These include a healthy diet, participation in physical activity, nicotine avoidance, healthy sleep, healthy weight, and healthy levels of blood lipids, blood glucose, and blood pressure.

More evidence is needed to show that effective management of cardiac disease positively affects cognition. Currently, cognitive measures are rarely included in studies examining various heart disease treatments, said Testai.

“There should probably be an effort to include brain health outcomes in some of the cardiac literature to make sure we can also measure whether the intervention in the heart leads to an advantage for the brain,” he said.

More research is also needed to determine whether immunomodulation has a beneficial effect on the cognitive trajectory, the statement’s authors noted.

They point out that the interpretation and generalizability of the studies described in the statement are confounded by disparate methodologies, including small sample sizes, cross-sectional designs, and underrepresentation of Black and Hispanic individuals.
 

‘An Important Step’

Reached for a comment, Natalia S. Rost, MD, Chief of the Stroke Division at Massachusetts General Hospital and professor of neurology at Harvard Medical School, both in Boston, said this paper “is an important step” in terms of pulling together pertinent information on the topic of heart-brain health.

She praised the authors for gathering evidence on risk factors related to atrial fibrillation, heart failure, and coronary heart disease, which is “the part of the puzzle that is controllable.”

This helps reinforce the message that controlling vascular risk factors helps with brain health, said Rost.

But brain health is “much more complex than just vascular health,” she said. It includes other elements such as freedom from epilepsy, migraine, traumatic brain injury, and adult learning disabilities.

No relevant conflicts of interest were disclosed.

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

Adults with bipolar disorder showed a decline in total white matter volume, but stability in other brain features over time compared to healthy controls, based on data from 88 individuals.

Patients with bipolar disorder demonstrate cognitive impairment and brain structure abnormalities, including global white matter loss, that have been associated with poor outcomes, but data on the stability or progression of neuroanatomical changes are limited, wrote Julian Macoveanu, PhD, of Copenhagen University Hospital, Denmark, and colleagues.

In a study published in The Journal of Affective Disorders, the researchers identified 97 adults aged 18 to 60 years with recently diagnosed bipolar disorder and matched them with 66 healthy controls. Participants were enrolled in the larger Bipolar Illness Onset (BIO) study. All participants underwent structural MRI and neuropsychological testing at baseline and were in full or partial remission based on total scores of 14 or less on the Hamilton Depression Rating Scale and the Young Mania Rating Scale. Approximately half of the participants (50 bipolar patients and 38 controls) participated in follow-up scans and testing after 6-27 months (mean 16 months), because of limited resources, according to the researchers.

The researchers compared changes in cortical gray matter volume and thickness, total cerebral white matter, hippocampal and amygdala volumes, estimated brain age, and cognitive functioning over time. In addition, they examined within-patient associations between baseline brain structure abnormalities and later mood episodes.

Overall, bipolar patients (BD) showed a significant decrease in total cerebral white matter from baseline, compared with healthy controls (HC) in mixed models (P = .006). “This effect was driven by BD patients showing a decrease in WM volume over time compared to HC who remained stable,” the researchers wrote, and the effect persisted in a post hoc analysis adjusting for subsyndromal symptoms and body mass index.

BD patients also had a larger amygdala volume at baseline and follow-up than HC, but no changes were noted between the groups. Changes in hippocampal volume also remained similar between the groups.

Analysis of cognitive data showed no significant differences in trajectories between BD patients and controls across cognitive domains or globally; although BD patients performed worse than controls at both time points.

BD patients in general experienced lower functioning and worse quality of life, compared with controls, but the trajectories of each group were similar for both functional and quality of life.

The researchers found no significant differences over time in total white matter, hippocampus, or amygdala volumes between BD patients who experienced at least one mood episode during the study period and those who remained in remission.

The findings were limited by several factors including the small sample size and limited generalizability of the findings because of the restriction to patients in full or partial remission, the researchers noted. Other limitations included the variation in follow-up time and the potential impact of psychotropic medication use.

However, the results were strengthened by the use of neuropsychiatric testing in addition to MRI to compare brain structure and cognitive function, the researchers said. The data suggest that both amygdala volume and cognitive impairment may be stable markers of BD soon after diagnosis, but that decreases in white matter may stem from disease progression.

The BIO study is funded by the Mental Health Services, Capital Region of Denmark, the Danish Council for Independent Research, Medical Sciences, Weimans Fund, Markedsmodningsfonden, Gangstedfonden, Læge Sofus Carl Emil og hustru Olga Boris Friis’ legat, Helsefonden, Innovation Fund Denmark, Copenhagen Center for Health Technology (CACHET), EU H2020 ITN, Augustinusfonden, and The Capital Region of Denmark. Macoveanu had no financial conflicts to disclose.

Adults with bipolar disorder showed a decline in total white matter volume, but stability in other brain features over time compared to healthy controls, based on data from 88 individuals.

Patients with bipolar disorder demonstrate cognitive impairment and brain structure abnormalities, including global white matter loss, that have been associated with poor outcomes, but data on the stability or progression of neuroanatomical changes are limited, wrote Julian Macoveanu, PhD, of Copenhagen University Hospital, Denmark, and colleagues.

In a study published in The Journal of Affective Disorders, the researchers identified 97 adults aged 18 to 60 years with recently diagnosed bipolar disorder and matched them with 66 healthy controls. Participants were enrolled in the larger Bipolar Illness Onset (BIO) study. All participants underwent structural MRI and neuropsychological testing at baseline and were in full or partial remission based on total scores of 14 or less on the Hamilton Depression Rating Scale and the Young Mania Rating Scale. Approximately half of the participants (50 bipolar patients and 38 controls) participated in follow-up scans and testing after 6-27 months (mean 16 months), because of limited resources, according to the researchers.

The researchers compared changes in cortical gray matter volume and thickness, total cerebral white matter, hippocampal and amygdala volumes, estimated brain age, and cognitive functioning over time. In addition, they examined within-patient associations between baseline brain structure abnormalities and later mood episodes.

Overall, bipolar patients (BD) showed a significant decrease in total cerebral white matter from baseline, compared with healthy controls (HC) in mixed models (P = .006). “This effect was driven by BD patients showing a decrease in WM volume over time compared to HC who remained stable,” the researchers wrote, and the effect persisted in a post hoc analysis adjusting for subsyndromal symptoms and body mass index.

BD patients also had a larger amygdala volume at baseline and follow-up than HC, but no changes were noted between the groups. Changes in hippocampal volume also remained similar between the groups.

Analysis of cognitive data showed no significant differences in trajectories between BD patients and controls across cognitive domains or globally; although BD patients performed worse than controls at both time points.

BD patients in general experienced lower functioning and worse quality of life, compared with controls, but the trajectories of each group were similar for both functional and quality of life.

The researchers found no significant differences over time in total white matter, hippocampus, or amygdala volumes between BD patients who experienced at least one mood episode during the study period and those who remained in remission.

The findings were limited by several factors including the small sample size and limited generalizability of the findings because of the restriction to patients in full or partial remission, the researchers noted. Other limitations included the variation in follow-up time and the potential impact of psychotropic medication use.

However, the results were strengthened by the use of neuropsychiatric testing in addition to MRI to compare brain structure and cognitive function, the researchers said. The data suggest that both amygdala volume and cognitive impairment may be stable markers of BD soon after diagnosis, but that decreases in white matter may stem from disease progression.

The BIO study is funded by the Mental Health Services, Capital Region of Denmark, the Danish Council for Independent Research, Medical Sciences, Weimans Fund, Markedsmodningsfonden, Gangstedfonden, Læge Sofus Carl Emil og hustru Olga Boris Friis’ legat, Helsefonden, Innovation Fund Denmark, Copenhagen Center for Health Technology (CACHET), EU H2020 ITN, Augustinusfonden, and The Capital Region of Denmark. Macoveanu had no financial conflicts to disclose.

Adults with bipolar disorder showed a decline in total white matter volume, but stability in other brain features over time compared to healthy controls, based on data from 88 individuals.

Patients with bipolar disorder demonstrate cognitive impairment and brain structure abnormalities, including global white matter loss, that have been associated with poor outcomes, but data on the stability or progression of neuroanatomical changes are limited, wrote Julian Macoveanu, PhD, of Copenhagen University Hospital, Denmark, and colleagues.

In a study published in The Journal of Affective Disorders, the researchers identified 97 adults aged 18 to 60 years with recently diagnosed bipolar disorder and matched them with 66 healthy controls. Participants were enrolled in the larger Bipolar Illness Onset (BIO) study. All participants underwent structural MRI and neuropsychological testing at baseline and were in full or partial remission based on total scores of 14 or less on the Hamilton Depression Rating Scale and the Young Mania Rating Scale. Approximately half of the participants (50 bipolar patients and 38 controls) participated in follow-up scans and testing after 6-27 months (mean 16 months), because of limited resources, according to the researchers.

The researchers compared changes in cortical gray matter volume and thickness, total cerebral white matter, hippocampal and amygdala volumes, estimated brain age, and cognitive functioning over time. In addition, they examined within-patient associations between baseline brain structure abnormalities and later mood episodes.

Overall, bipolar patients (BD) showed a significant decrease in total cerebral white matter from baseline, compared with healthy controls (HC) in mixed models (P = .006). “This effect was driven by BD patients showing a decrease in WM volume over time compared to HC who remained stable,” the researchers wrote, and the effect persisted in a post hoc analysis adjusting for subsyndromal symptoms and body mass index.

BD patients also had a larger amygdala volume at baseline and follow-up than HC, but no changes were noted between the groups. Changes in hippocampal volume also remained similar between the groups.

Analysis of cognitive data showed no significant differences in trajectories between BD patients and controls across cognitive domains or globally; although BD patients performed worse than controls at both time points.

BD patients in general experienced lower functioning and worse quality of life, compared with controls, but the trajectories of each group were similar for both functional and quality of life.

The researchers found no significant differences over time in total white matter, hippocampus, or amygdala volumes between BD patients who experienced at least one mood episode during the study period and those who remained in remission.

The findings were limited by several factors including the small sample size and limited generalizability of the findings because of the restriction to patients in full or partial remission, the researchers noted. Other limitations included the variation in follow-up time and the potential impact of psychotropic medication use.

However, the results were strengthened by the use of neuropsychiatric testing in addition to MRI to compare brain structure and cognitive function, the researchers said. The data suggest that both amygdala volume and cognitive impairment may be stable markers of BD soon after diagnosis, but that decreases in white matter may stem from disease progression.

The BIO study is funded by the Mental Health Services, Capital Region of Denmark, the Danish Council for Independent Research, Medical Sciences, Weimans Fund, Markedsmodningsfonden, Gangstedfonden, Læge Sofus Carl Emil og hustru Olga Boris Friis’ legat, Helsefonden, Innovation Fund Denmark, Copenhagen Center for Health Technology (CACHET), EU H2020 ITN, Augustinusfonden, and The Capital Region of Denmark. Macoveanu had no financial conflicts to disclose.

A first stroke in older adults is associated with substantial immediate and accelerated long-term cognitive decline, suggested a new study that underscores the need for continuous cognitive monitoring in this patient population.

Results from the study, which included 14 international cohorts of older adults, showed that stroke was associated with a significant acute decline in global cognition and a small, but significant, acceleration in the rate of cognitive decline over time.

Cognitive assessments in primary care are “crucial, especially since cognitive impairment is frequently missed or undiagnosed in hospitals,” lead author Jessica Lo, MSc, biostatistician and research associate with the Center for Healthy Brain Aging, University of New South Wales, Sydney, Australia, told this news organization.

She suggested clinicians incorporate long-term cognitive assessments into care plans, using more sensitive neuropsychological tests in primary care to detect early signs of cognitive impairment. “Early detection would enable timely interventions to improve outcomes,” Lo said.

She also noted that poststroke care typically includes physical rehabilitation but not cognitive rehabilitation, which many rehabilitation centers aren’t equipped to provide.

The study was published online in JAMA Network Open.
 

Mapping Cognitive Decline Trajectory

Cognitive impairment after stroke is common, but the trajectory of cognitive decline following a first stroke, relative to prestroke cognitive function, remains unclear.

The investigators leveraged data from 14 population-based cohort studies of 20,860 adults (mean age, 73 years; 59% women) to map the trajectory of cognitive function before and after a first stroke.

The primary outcome was global cognition, defined as the standardized average of four cognitive domains (language, memory, processing speed, and executive function).

During a mean follow-up of 7.5 years, 1041 (5%) adults (mean age, 79 years) experienced a first stroke, a mean of 4.5 years after study entry.

In adjusted analyses, stroke was associated with a significant acute decline of 0.25 SD in global cognition and a “small but significant” acceleration in the rate of decline of −0.038 SD per year, the authors reported.

Stroke was also associated with acute decline in all individual cognitive domains except for memory, with effect sizes ranging from −0.17 to −0.22 SD. Poststroke declines in Mini-Mental State Examination scores (−0.36 SD) were also noted.

In terms of cognitive trajectory, the rate of decline before stroke in survivors was similar to that seen in peers who didn’t have a stroke (−0.048 and −0.049 SD per year in global cognition, respectively).

The researchers did not identify any vascular risk factors moderating cognitive decline following a stroke, consistent with prior research. However, cognitive decline was significantly more rapid in individuals without stroke, regardless of any future stroke, who had a history of diabetes, hypertension, high cholesterol, cardiovascular disease, depression, smoking, or were APOE4 carriers.

“Targeting modifiable vascular risk factors at an early stage may reduce the risk of stroke but also subsequent risk of stroke-related cognitive decline and cognitive impairment,” the researchers noted.
 

A ‘Major Step’ in the Right Direction

As previously reported by this news organization, in 2023 the American Heart Association (AHA) issued a statement noting that screening for cognitive impairment should be part of multidisciplinary care for stroke survivors.

Commenting for this news organization, Mitchell Elkind, MD, MS, AHA chief clinical science officer, said these new data are consistent with current AHA guidelines and statements that “support screening for cognitive and functional decline in patients both acutely and over the long term after stroke.”

Elkind noted that the 2022 guideline for intracerebral hemorrhage states that cognitive screening should occur “across the continuum of inpatient care and at intervals in the outpatient setting” and provides recommendations for cognitive therapy.

“Our 2021 scientific statement on the primary care of patients after stroke also recommends screening for both depression and cognitive impairment over both the short- and long-term,” said Elkind, professor of neurology and epidemiology at Columbia University Irving Medical Center in New York City.

“These documents recognize the fact that function and cognition can continue to decline years after stroke and that patients’ rehabilitation and support needs may therefore change over time after stroke,” Elkind added.

The authors of an accompanying commentary called it a “major step” in the right direction for the future of long-term stroke outcome assessment.

“As we develop new devices, indications, and time windows for stroke treatment, it may perhaps be wise to ensure trials steer away from simpler outcomes to more complex, granular ones,” wrote Yasmin Sadigh, MSc, and Victor Volovici, MD, PhD, with Erasmus University Medical Center, Rotterdam, the Netherlands.

The study had no commercial funding. The authors and commentary writers and Elkind have declared no conflicts of interest.

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

A first stroke in older adults is associated with substantial immediate and accelerated long-term cognitive decline, suggested a new study that underscores the need for continuous cognitive monitoring in this patient population.

Results from the study, which included 14 international cohorts of older adults, showed that stroke was associated with a significant acute decline in global cognition and a small, but significant, acceleration in the rate of cognitive decline over time.

Cognitive assessments in primary care are “crucial, especially since cognitive impairment is frequently missed or undiagnosed in hospitals,” lead author Jessica Lo, MSc, biostatistician and research associate with the Center for Healthy Brain Aging, University of New South Wales, Sydney, Australia, told this news organization.

She suggested clinicians incorporate long-term cognitive assessments into care plans, using more sensitive neuropsychological tests in primary care to detect early signs of cognitive impairment. “Early detection would enable timely interventions to improve outcomes,” Lo said.

She also noted that poststroke care typically includes physical rehabilitation but not cognitive rehabilitation, which many rehabilitation centers aren’t equipped to provide.

The study was published online in JAMA Network Open.
 

Mapping Cognitive Decline Trajectory

Cognitive impairment after stroke is common, but the trajectory of cognitive decline following a first stroke, relative to prestroke cognitive function, remains unclear.

The investigators leveraged data from 14 population-based cohort studies of 20,860 adults (mean age, 73 years; 59% women) to map the trajectory of cognitive function before and after a first stroke.

The primary outcome was global cognition, defined as the standardized average of four cognitive domains (language, memory, processing speed, and executive function).

During a mean follow-up of 7.5 years, 1041 (5%) adults (mean age, 79 years) experienced a first stroke, a mean of 4.5 years after study entry.

In adjusted analyses, stroke was associated with a significant acute decline of 0.25 SD in global cognition and a “small but significant” acceleration in the rate of decline of −0.038 SD per year, the authors reported.

Stroke was also associated with acute decline in all individual cognitive domains except for memory, with effect sizes ranging from −0.17 to −0.22 SD. Poststroke declines in Mini-Mental State Examination scores (−0.36 SD) were also noted.

In terms of cognitive trajectory, the rate of decline before stroke in survivors was similar to that seen in peers who didn’t have a stroke (−0.048 and −0.049 SD per year in global cognition, respectively).

The researchers did not identify any vascular risk factors moderating cognitive decline following a stroke, consistent with prior research. However, cognitive decline was significantly more rapid in individuals without stroke, regardless of any future stroke, who had a history of diabetes, hypertension, high cholesterol, cardiovascular disease, depression, smoking, or were APOE4 carriers.

“Targeting modifiable vascular risk factors at an early stage may reduce the risk of stroke but also subsequent risk of stroke-related cognitive decline and cognitive impairment,” the researchers noted.
 

A ‘Major Step’ in the Right Direction

As previously reported by this news organization, in 2023 the American Heart Association (AHA) issued a statement noting that screening for cognitive impairment should be part of multidisciplinary care for stroke survivors.

Commenting for this news organization, Mitchell Elkind, MD, MS, AHA chief clinical science officer, said these new data are consistent with current AHA guidelines and statements that “support screening for cognitive and functional decline in patients both acutely and over the long term after stroke.”

Elkind noted that the 2022 guideline for intracerebral hemorrhage states that cognitive screening should occur “across the continuum of inpatient care and at intervals in the outpatient setting” and provides recommendations for cognitive therapy.

“Our 2021 scientific statement on the primary care of patients after stroke also recommends screening for both depression and cognitive impairment over both the short- and long-term,” said Elkind, professor of neurology and epidemiology at Columbia University Irving Medical Center in New York City.

“These documents recognize the fact that function and cognition can continue to decline years after stroke and that patients’ rehabilitation and support needs may therefore change over time after stroke,” Elkind added.

The authors of an accompanying commentary called it a “major step” in the right direction for the future of long-term stroke outcome assessment.

“As we develop new devices, indications, and time windows for stroke treatment, it may perhaps be wise to ensure trials steer away from simpler outcomes to more complex, granular ones,” wrote Yasmin Sadigh, MSc, and Victor Volovici, MD, PhD, with Erasmus University Medical Center, Rotterdam, the Netherlands.

The study had no commercial funding. The authors and commentary writers and Elkind have declared no conflicts of interest.

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

A first stroke in older adults is associated with substantial immediate and accelerated long-term cognitive decline, suggested a new study that underscores the need for continuous cognitive monitoring in this patient population.

Results from the study, which included 14 international cohorts of older adults, showed that stroke was associated with a significant acute decline in global cognition and a small, but significant, acceleration in the rate of cognitive decline over time.

Cognitive assessments in primary care are “crucial, especially since cognitive impairment is frequently missed or undiagnosed in hospitals,” lead author Jessica Lo, MSc, biostatistician and research associate with the Center for Healthy Brain Aging, University of New South Wales, Sydney, Australia, told this news organization.

She suggested clinicians incorporate long-term cognitive assessments into care plans, using more sensitive neuropsychological tests in primary care to detect early signs of cognitive impairment. “Early detection would enable timely interventions to improve outcomes,” Lo said.

She also noted that poststroke care typically includes physical rehabilitation but not cognitive rehabilitation, which many rehabilitation centers aren’t equipped to provide.

The study was published online in JAMA Network Open.
 

Mapping Cognitive Decline Trajectory

Cognitive impairment after stroke is common, but the trajectory of cognitive decline following a first stroke, relative to prestroke cognitive function, remains unclear.

The investigators leveraged data from 14 population-based cohort studies of 20,860 adults (mean age, 73 years; 59% women) to map the trajectory of cognitive function before and after a first stroke.

The primary outcome was global cognition, defined as the standardized average of four cognitive domains (language, memory, processing speed, and executive function).

During a mean follow-up of 7.5 years, 1041 (5%) adults (mean age, 79 years) experienced a first stroke, a mean of 4.5 years after study entry.

In adjusted analyses, stroke was associated with a significant acute decline of 0.25 SD in global cognition and a “small but significant” acceleration in the rate of decline of −0.038 SD per year, the authors reported.

Stroke was also associated with acute decline in all individual cognitive domains except for memory, with effect sizes ranging from −0.17 to −0.22 SD. Poststroke declines in Mini-Mental State Examination scores (−0.36 SD) were also noted.

In terms of cognitive trajectory, the rate of decline before stroke in survivors was similar to that seen in peers who didn’t have a stroke (−0.048 and −0.049 SD per year in global cognition, respectively).

The researchers did not identify any vascular risk factors moderating cognitive decline following a stroke, consistent with prior research. However, cognitive decline was significantly more rapid in individuals without stroke, regardless of any future stroke, who had a history of diabetes, hypertension, high cholesterol, cardiovascular disease, depression, smoking, or were APOE4 carriers.

“Targeting modifiable vascular risk factors at an early stage may reduce the risk of stroke but also subsequent risk of stroke-related cognitive decline and cognitive impairment,” the researchers noted.
 

A ‘Major Step’ in the Right Direction

As previously reported by this news organization, in 2023 the American Heart Association (AHA) issued a statement noting that screening for cognitive impairment should be part of multidisciplinary care for stroke survivors.

Commenting for this news organization, Mitchell Elkind, MD, MS, AHA chief clinical science officer, said these new data are consistent with current AHA guidelines and statements that “support screening for cognitive and functional decline in patients both acutely and over the long term after stroke.”

Elkind noted that the 2022 guideline for intracerebral hemorrhage states that cognitive screening should occur “across the continuum of inpatient care and at intervals in the outpatient setting” and provides recommendations for cognitive therapy.

“Our 2021 scientific statement on the primary care of patients after stroke also recommends screening for both depression and cognitive impairment over both the short- and long-term,” said Elkind, professor of neurology and epidemiology at Columbia University Irving Medical Center in New York City.

“These documents recognize the fact that function and cognition can continue to decline years after stroke and that patients’ rehabilitation and support needs may therefore change over time after stroke,” Elkind added.

The authors of an accompanying commentary called it a “major step” in the right direction for the future of long-term stroke outcome assessment.

“As we develop new devices, indications, and time windows for stroke treatment, it may perhaps be wise to ensure trials steer away from simpler outcomes to more complex, granular ones,” wrote Yasmin Sadigh, MSc, and Victor Volovici, MD, PhD, with Erasmus University Medical Center, Rotterdam, the Netherlands.

The study had no commercial funding. The authors and commentary writers and Elkind have declared no conflicts of interest.

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