Why the study?
Use of consumer-grade smart devices for cardiac arrhythmia detection is increasing, requiring physicians to interpret nonmedical-grade device data despite key limitations.
Do consumer-grade smart devices accurately detect atrial fibrillation compared to single-lead electrocardiography?
Do consumer-grade smart devices accurately detect atrial fibrillation compared to single-lead electrocardiography?
Consumer-grade wearables offer high sensitivity and specificity for atrial fibrillation detection but are limited by false positives and access disparities, increasingly requiring physician interpretation.
Device alerts warrant confirmatory testing to curb false positives; leaves open optimal screening role pending prospective validation.
Consumer-grade smart devices, including smartwatches and smartphones, are potentially valuable tools in detecting cardiac arrhythmias, particularly atrial fibrillation, and their use is increasing. These devices, which use photoplethys mography, show remarkably high sensitivity and specificity for detection of atrial fibrillation, with implications for stroke prevention and management in at-risk patients. The ability of the devices to detect atrial fibrillation is being compared with single-lead electrocardiography. Physicians will increasingly be asked to interpret data from these nonmedical-grade devices as they become more common. Limitations include high false-positive rates in certain populations and disparities in access.
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Mohamoud et al. (2024) studied this question.
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