Related Experiment Video
Updated: Jun 30, 2026

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
Published on: December 11, 2019
Smartwatch-Detected Atrial Fibrillation on the Morning After a Nocturnal Sleep-Disordered Breathing Notification: A
Toru Maruyama1, Michinari Hieda2, Mitsuhiro Fukata3
1Cardiology, Haradoi Hospital, Fukuoka, JPN.
Smartwatch ECG detected atrial fibrillation (AF) paroxysms following sleep disturbance alerts. This case suggests a link between nocturnal breathing issues and daily AF, detectable by a single smartwatch.
Area of Science:
- Cardiology
- Sleep Medicine
- Digital Health
Background:
- Smartwatches are increasingly used for screening atrial fibrillation (AF) and sleep-disordered breathing.
- Patient-activated smartwatch ECG recordings are common for AF screening.
- Previous AF paroxysms in a 79-year-old man were documented a decade ago, leading to deferred pulsed field ablation.
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