Screening for arrhythmia with the new portable single-lead electrocardiographic device (SnapECG): an application study in community-based elderly population in Nanjing, China.

Aging Clinical and Experimental Research
Jieqiong GuanLina Wang

Abstract

SnapECG is a new handheld single-lead electrocardiograph (ECG) device used for arrhythmia screening, it is widely used in clinical practice but not in primary care. To evaluate the arrhythmia screening value of SnapECG among a community-based population. A cross-sectional community-based study of multistage stratified cluster sampling was conducted from March 1st to April 30th 2019. The sensitivities, specificities and the area under the receiver operating characteristic (AUCROC) curves of the SnapECG and reference 12-lead ECG on arrhythmia were calculated in three age-groups [50-64 years, 65-74 years, and over-75 years]. A total of 2263 participants took part in the arrhythmia screening, these included 1479 aged 50-64 years, 602 aged 65-74 years and 182 aged over-75 years. The SnapECG categorized 1828 (80.8%) as sinus rhythm, 161 (7.1%) as premature atrial/ventricular contractions (PAVs/PCVs), 32 (1.4%) as possible atrial fibrillation (AF), 56 (2.5%) as supraventricular tachycardias or sinus bradycardia (SVT/SB) and 186 (8.2%) as unreadable. SnapECG had 89% sensitivity (95% CI 0.52-1.00) and 99% specificity (95% CI 0.97-0.99) of detecting AF in the 65-74 years age-group. The AUCROC to detect AF was 0.94 for the 65-74 years age...Continue Reading

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