Key result
Smartwatch detects supraventricular tachycardia missed by an implantable loop recorder in case report.
Why the study?
Wearable devices with single-lead ECG and rhythm analysis algorithms may assist in detecting cardiac arrhythmias missed by implantable loop recorders.
Case Report
Smartwatches with single-lead ECG capabilities may assist in diagnosing cardiac arrhythmias like SVT, potentially detecting events missed by traditional implantable loop recorders.
Smartwatch ECG may complement ILR monitoring for SVT; single case leaves open need for prospective validation.
Wearable devices such as smartwatches are increasingly used worldwide. They use photoplethysmography to estimate heart rate (HR) by detecting pulsatile changes in peripheral blood flow. More recent smart watch models have the ability to record a single-lead electrocardiogram (ECG), which can be manually activated by the wearer. In combination with rhythm analysis algorithms, they can provide direct-to-consumer outputs and may assist in the detection and diagnosis of cardiac arrhythmias.
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Oakley et al. (2026) conducted a case report in Supraventricular tachycardia. Smartwatch vs. Implantable loop recorder was evaluated on Detection of supraventricular tachycardia. A smartwatch successfully detected supraventricular tachycardia that was missed by an implantable loop recorder.
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