Keywords: CPVT, catecholaminergic polymorphic ventricular tachycardia; Catecholaminergic polymorphic ventricular tachycardia; Child; ECG, electrocardiogram; EST, exercise stress testing; ICD, implantable cardioverter-defibrillator; LCSD, left cardiac sympathetic denervation; PICU, pediatric intensive care unit; PVC, premature ventricular complex; RYR2, ryanodine receptor 2; SUD, sudden unexpected death; Sudden death; VT, ventricular tachycardia.