SCN5A and arrhythmogenic right ventricular cardiomyopathy: Furthermore, recent findings also suggest that SCN5A mutations may be present in patients with typical BrS electrocardiogram but also myocardial abnormalities resembling those typical for arrhythmogenic right ventricular cardiomyopathy (ARVC) and in families with dilated cardiomyopathy (DCM) [10].