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Updated: Mar 23, 2026

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
Published on: December 11, 2019
Interrogation of Patient Smartphone Activity Tracker to Assist Arrhythmia Management
Joshua Rudner1, Carol McDougall2, Vivek Sailam2
1Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, PA.
Abstract:
A 42-year-old man presented to the emergency department (ED) with newly diagnosed atrial fibrillation of unknown duration. Interrogation of the patient's wrist-worn activity tracker and smartphone application identified the onset of the arrhythmia as within the previous 3 hours, permitting electrocardioversion and discharge of the patient from the ED.
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