Polymorphic Ventricular Tachycardia Detected With a Smartwatch

“Wearable” devices are a rapidly evolving technology that often can record and store personal healthcare data. We report the case of a 64-year-old woman who presented with a syncopal episode and subsequent cardiac arrest, ultimately requiring a dual-chamber implantable cardioverter defibrillator. Prior to hospitalization, she obtained electrocardiogram recordings using her Apple Watch, due to feeling unwell, and one showed nonsustained polymorphic ventricular tachycardia. Direct-to-consumer electrocardiogram monitors in “wearables” are increasing in popularity and may play a role in the work-up and diagnosis of patients’ symptoms. However, they are not a replacement for healthcare expertise, and their misuse may result in undue anxiety and inappropriate healthcare utilization.