Epsilon wave detected by an Apple Watch Series 5 in a patient with biventricular arrhythmogenic cardiomyopathy

摘要

A 32-year-old man with a family history of sudden cardiac death due to arrhythmogenic cardiomyopathy (ACM) was admitted following a recovered ventricular fibrillation cardiac arrest . A family genetic study had detected that the patient carried a mutation on the desmoplaquin gene.1 Transthoracic echocardiography revealed a moderately dilated right ventricle with distal hypertrabeculation and decreased systolic function. The left ventricle was also dilated and showed impaired global systolic function. A conventional 12-lead electrocardiogram (ECG) was performed showing sinus rhythm, a slight deflection at the end of the QRS in V1–V2, and T-wave inversion in lateral leads (Figure 1). In addition to standard ECG, quasistandard precordial leads were obtained with an Apple Watch Series 5,2 displaying intraventricular nical differences, the resulting tracing is similar to the conventional one.