The inherited arrhythmogenic diseases associated with the transmembranous ionic channels, anchoring proteins or intracellular calcium regulating proteins are thought to be responsible for sudden cardiac death in infants, children, and young adults who have structurally normal hearts. Recent genetic analyses have identified congenital diseases such as the long-QT syndrome (LQTS), the Jervell and Lange-Nielsen syndrome (JLNS), the Brugada syndrome (BrS), the short-QT syndrome (SQTS), the arrhythmogenic right ventricular cardiomyopathy type 2 (ARVC2), and the catecholamine-induced polymorphic ventricular tachycardia (CPVT) /familial polymorphic ventricular tachycardia (FPVT).