Six-lead device superior to single-lead smartwatch ECG in atrial fibrillation detection

Am Heart J. 2022 Nov:253:53-58. doi: 10.1016/j.ahj.2022.06.010. Epub 2022 Jul 16.

Abstract

This was a head-to-head comparative study on different electrocardiogram (ECG)-based smartwatches and devices for atrial fibrillation detection. We prospectively included 220 patients scheduled for electrical cardioversion and recorded ECGs with 3 different devices (Withings Move ECG, Apple Watch 5, Kardia Mobile 6-leads) as well as the standard 12-lead ECG (gold standard), both before and after cardioversion. All atrial fibrillation detection algorithms had high accuracy (sensitivity and specificity: 91-99%) but were hampered by uninterpretable recordings (20-24%). In cardiologists' interpretation, the 6-lead device was superior (sensitivity 99%, specificity 97%) to both single-lead smartwatches (P < .05) for atrial fibrillation detection.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Atrial Fibrillation* / diagnosis
  • Electric Countershock
  • Electrocardiography
  • Humans
  • Sensitivity and Specificity