Clinical and Molecular Characterization of Patients With Catecholaminergic Polymorphic Ventricular Tachycardia

Mutations in the cardiac ryanodine receptor gene (RyR2) underlie catecholaminergic polymorphic ventricular tachycardia (CPVT), an inherited arrhythmogenic disease occurring in the structurally intact heart. The proportion of patients with CPVT carrying RyR2 mutations is unknown, and the clinical features of RyR2-CPVT as compared with nongenotyped CPVT are undefined.Patients with documented polymorphic ventricular arrhythmias occurring during...