Central Illustration.

The Unmet Needs for Primary Prevention ICD Therapy in Asia

This illustration shows the unmet needs for primary prevention implantable cardioverter-defibrillator (ICD) therapy in Asia, namely, ICD underuse, a lower rate of ischemic cardiomyopathy, limited data on the optimal cutoff age for ICD indication in nonischemic cardiomyopathy, and the necessity of nonsustained ventricular tachycardia (NSVT) and electrophysiological study (EPS) for an ICD indication for cardiac sarcoidosis. ACC = American College of Cardiology; AHA = American Heart Association; HF = heart failure; JCS = Japanese Circulation Society; LVEF = left ventricular ejection fraction; PM = pacemaker; SCD = sudden cardiac death.