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September 28, 2021 11:20 pm

Apple Watch Can Detect Arrhythmias Other Than AFib, Study Shows

According to new research published this week in American Heart Association Journal, Apple Watch can detect arrhythmias other than Atrial Fibrillation (AFib). The Apple watch irregular pulse detection algorithm was found to have a positive predictive value of 0.84 for the identification of atrial fibrillation (AFib). MyHealthyApple reports: The Apple Heart Study investigated a smartwatch-based irregular pulse notification algorithm to identify AFib. For this secondary analysis, the researchers analyzed participants who received an ambulatory ECG patch after index irregular pulse notification. Among 419,297 participants enrolled in the Apple Heart Study, 450 participant ECG patches were analyzed, with no AF on 297 ECG patches (66%). Non-AF arrhythmias (excluding supraventricular tachycardias [less than] 30 beats and pauses [less than] 3 seconds) were detected in 119 participants (40.1%) with ECG patches without AFib. 76 participants (30.5%) reported subsequent AF diagnoses. In participants with an irregular pulse notification on the Apple Watch and no AF observed on ECG patch, atrial and ventricular arrhythmias, mostly PACs and PVCs, were detected in 40% of participants.

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