266 Ch 265. Ventricular Arrhythmias + Sudden Cardiac Death

VT (sustained / non-sustained); VF; torsades de pointes (acquired long QT); ICD for secondary prevention + primary in HFrEF / familial; catheter ablation for refractory VT (scar substrate, idiopathic); SCD = leading cause of cardiac mortality globally (~ 50% of CV deaths); familial / channelopathy SCD (LQTS, Brugada, ARVC, CPVT, HCM) — family screening。