RYR2 and catecholaminergic polymorphic ventricular tachycardia 1: The RYR2 gene mutations are also a cause of arrhythmogenic right ventricular cardiomyopathy (ARVC2) with clinical manifestations similar to CPVT, such as stress‐induced ventricular tachycardia, in addition to ongoing deterioration and fibro–fatty infiltration of the right ventricle.