Validation of an algorithm for continuous monitoring of atrial fibrillation using a consumer smartwatch.
Background: Consumer devices with broad reach may be useful in screening for atrial fibrillation (AF) in appropriate populations. However, currently no consumer devices are capable of continuous monitoring for AF.Objective: The purpose of this study was to estimate the sensitivity and specificity of...
| Publicado en: | Heart Rhythm Vol. 18; no. 9; pp. 1482 - 1491 |
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| Autores principales: | , , , , , , , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Sep2021
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=151980034&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 151980034 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15475271 EHI jtl: Heart Rhythm issn: 15475271 maglogo: N pubinfo: dt: Sep2021 vid: 18 iid: 9 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 151980034 151980034 NLM33838317 151980034 10.1016/j.hrthm.2021.03.044 NLM33838317 151980034 ppf: 1482 ppct: 9 formats: tig: atl: Validation of an algorithm for continuous monitoring of atrial fibrillation using a consumer smartwatch. aug: au: Avram, Robert Ramsis, Mattheus Cristal, Ashley D. Nathan, Viswam Zhu, Li Kim, Jacob Kuang, Jilong Gao, Alex Vittinghoff, Eric Rohdin-Bibby, Linnea Yogi, Sara Seremet, Emina Carp, Valerie Badilini, Fabio Pletcher, Mark J. Marcus, Gregory M. Mortara, David Olgin, Jeffrey E. affil: Division of Cardiology, University of California San Francisco, San Francisco, California sug: subj: Monitoring, Physiologic Equipment and Supplies Electrocardiography Methods Plethysmography Equipment and Supplies Atrial Fibrillation Diagnosis Algorithms Telemedicine Equipment and Supplies Equipment Design Retrospective Design Male Aged Female Human Prospective Studies Atrial Fibrillation Physiopathology Comparative Studies Multicenter Studies Evaluation Research Validation Studies Aged: 65+ years Male Female ab: Background: Consumer devices with broad reach may be useful in screening for atrial fibrillation (AF) in appropriate populations. However, currently no consumer devices are capable of continuous monitoring for AF.Objective: The purpose of this study was to estimate the sensitivity and specificity of a smartwatch algorithm for continuous detection of AF from sinus rhythm in a free-living setting.Methods: We studied a commercially available smartwatch with photoplethysmography (W-PPG) and electrocardiogram (W-ECG) capabilities. We validated a novel W-PPG algorithm combined with a W-ECG algorithm in a free-living setting, and compared the results to those of a 28-day continuous ECG patch (P-ECG).Results: A total of 204 participants completed the free-living study, recording 81,944 hours with both P-ECG and smartwatch measurements. We found sensitivity of 87.8% (95% confidence interval [CI] 83.6%-91.0%) and specificity of 97.4% (95% CI 97.1%-97.7%) for the W-PPG algorithm (every 5-minute classification); sensitivity of 98.9% (95% CI 98.1%-99.4%) and specificity of 99.3% (95% CI 99.1%-99.5%) for the W-ECG algorithm; and sensitivity of 96.9% (95% CI 93.7%-98.5%) and specificity of 99.3% (95% CI 98.4%-99.7%) for W-PPG triggered W-ECG with a single W-ECG required for confirmation of AF. We found a very strong correlation of W-PPG in quantifying AF burden compared to P-ECG (r = 0.98).Conclusion: Our findings demonstrate that a novel algorithm using a commercially available smartwatch can continuously detect AF with excellent performance and that confirmation with W-ECG further enhances specificity. In addition, our W-PPG algorithm can estimate AF burden. Further research is needed to determine whether this algorithm is useful in screening for AF in select at-risk patients. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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