Int J Arrhythm.  2024 Jun;25(2):11. 10.1186/s42444-024-00118-5.

Systematic review of validation studies for the use of wearable smartwatches in the screening of atrial fibrillation

Affiliations
  • 1Department of Internal Medicine, Northwest Medical Centre, 6200 N La Cholla, Tucson, AZ 85741, USA
  • 2Department of Family and Community Medicine, School of Medicine, University of New Mexico, Albuquerque, NM, USA
  • 3Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM, USA
  • 4Department of Medicine, Bolan University of Medical and Health Sciences, Quetta, Pakistan
  • 5Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA
  • 6PIMA Heart and Vascular, Tucson, AZ, USA

Abstract

Introduction
Atrial fibrillation (AFib) is a common dysrhythmia and a risk factor for stroke and heart failure. Early detection and treatment are key to avoiding complications (especially in sustained AFib). Here, we systematically review the potential of wearable smartwatches (WSWs) to screen for AFib. Method A literature search was conducted, and only those validation studies were shortlisted where the screening ability of WSWs was compared with EKG, and the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy, and Kappa statistic were provided. Result Twelve studies were included with a combined sample size of 1,075,088. Most validation measures of WSWs were above 90% and comparable with KardiaBand by AliveCor (KB), which is an FDA-approved device to detect AFib.
Conclusion
WSWs have the potential to reliably and continuously screen for AFib and detect it in a timely manner. The inconclusive results produced by WSWs are a significant problem. Once the inconclusive results are rectified, WSWs may be used for widespread screening of AFib in those people who are at high risk of developing AFib.

Keyword

Atrial fibrillation; Wearable smartwatches; KardiaBand AliveCor; EKG
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