Ischemic Dilated Cardiomyopathy (IDCM) --- 1. Definition Ischemic dilated cardiomyopathy is left ventricular dilatation and systolic dysfunction caused by coronary artery disease. It results from chronic myocardial ischemia or multiple infarctions leading to loss of viable myocardium, fibrosis, and remodeling. It is the most common cause of systolic heart failure in developed countries. --- 2. Pathophysiology Chronic ischemia or infarction damages the heart muscle, replacing viable tissue with f