Watch for hidden atrial fibrillation after unexplained stroke
Part of Brain & nervous system, Heart & circulation clinical trials.
This study uses a smartwatch and a longer heart-monitoring test (a Holter) to find an irregular heart rhythm called atrial fibrillation after a stroke whose cause is unclear. If they detect it, it may help guide better prevention and treatment to reduce future stroke risk.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are age 55 or older
- Your stroke was called “cryptogenic” (no clear cause) after brain imaging, blood-vessel checks, a 24-hour heart monitor, and an echocardiogram
- Your stroke affected the brain’s outer layer (an “acute cortical infarction”) and there is an artery blockage inside the brain (intracranial occlusion)
- Your disability score is less than 4 on the Modified Rankin Scale (you can likely manage daily activities with limited assistance)
- You must not have had a “lacunar” stroke or a transient ischemic attack (TIA) instead of this type of stroke
- You must not already have a known stroke source like atrial fibrillation, other major heart causes, or certain vessel narrowing causes, and you should not have a pacemaker
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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