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.

Cureus
|June 29, 2026
PubMed
Summary

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.

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