Peer-Reviewed Publication
Circ Arrhythm Electrophysiol2025;18(7):e013565.July 1, 2025Journal Article
Wearable Irregular Heart Rhythm Detection Recurrences and Electrocardiographic Atrial Fibrillation Confirmation: The Fitbit Heart Study.
Steven A Lubitz1,2, Michael V McConnell3,4, Caitlin Selvaggi5, Aparna Krishnamoorthy5, Steven J Atlas2,6, David D McManus7, Sherry Pagoto8, Daniel E Singer2,6, Alexandros Pantelopoulos3, Andrea S Foulkes2,5, Anthony Z Faranesh3
1Cardiac Arrhythmia Service and Cardiovascular Research Center, Boston, MA (S.A.L.).
2Harvard Medical School, Boston, MA (S.A.L., S.J.A., D.E.S., A.S.F.).
3Fitbit LLC (Google LLC), San Francisco, CA (M.V.M.C., A.P., A.Z.F.).
4Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA (M.V.M.C.).
5Biostatistics Center, Boston, MA (C.S., A.K., A.S.F.).
6Division of General Internal Medicine, Massachusetts General Hospital, Boston (S.J.A., D.E.S.).
7Division of Cardiovascular Medicine, Department of Medicine, University of Massachusetts Chan Medical School, Worcester (D.D.M.M.).
8Department of Allied Health Sciences, University of Connecticut, Storrs (S.P.).
Abstract
BACKGROUND: Wrist-worn wearables can detect irregular heart rhythms using photoplethysmography, but ECGs are required to confirm atrial fibrillation (AF). We sought to determine the frequency of a recurrent irregular heart rhythm detection (IHRD; ≥30 minutes of an irregular rhythm), estimate the potential diagnostic yield of different electrocardiographic monitoring strategies for confirming AF, a…
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