Ischemic cardiomyopathy is best described as cardiomyopathy due to what underlying disease?

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Ischemic cardiomyopathy comes from damage caused by insufficient blood supply to the heart muscle, typically due to coronary artery disease. When arteries are narrowed or blocked, parts of the myocardium endure chronic ischemia or scar after infarction. Scar tissue doesn’t contract well, so overall left ventricular systolic function declines and the ventricle may dilate, producing heart failure symptoms. This link to CAD differentiates it from other cardiomyopathies caused by inflammation (viral myocarditis), toxins (alcohol), or pressure overload (hypertension) rather than by ischemia from coronary disease.