Smart watch may improve detection of atrial fibrillation
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- Reviewed by Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

The study followed 473 people with an elevated risk for stroke; their average age was 75. About half wore an Apple Watch with pulse and electrocardiogram (ECG) monitoring for at least 12 hours a day. The others received standard care, which could include using a device that records an ECG on demand or continuously over one to two days.
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About the Author
Julie Corliss, Executive Editor, Harvard Heart Letter
About the Reviewer
Robert H. Shmerling, MD, Senior Faculty Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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