Ventricular Tachycardia, Catecholaminergic Polymorphic, 2, also known as catecholaminergic polymorphic ventricular tachycardia 2, is related to ventricular tachycardia, catecholaminergic polymorphic, 1, with or without atrial dysfunction and/or dilated cardiomyopathy and catecholaminergic polymorphic ventricular tachycardia, and has symptoms including seizures and syncope. An important gene associated with Ventricular Tachycardia, Catecholaminergic Polymorphic, 2 is CASQ2 (Calsequestrin 2), and among its related pathways/superpathways are Beta-Adrenergic Signaling and Dopamine-DARPP32 Feedback onto cAMP Pathway. Affiliated tissues include heart and heart-ventricle, and related phenotypes are syncope and polymorphic ventricular tachycardia