<unk>  is a condition of the heart that causes dilation and impaired contraction of the left ventricle (or both ventricles). Impaired contraction is defined as a low ejection fraction (< 40%).
Dilated cardiomyopathy
Alcoholic cardiomyopathy
Eosinophilic cardiomyopathy
Restrictive cardiomyopathy
Noncompaction cardiomyopathy
Hypertrophic cardiomyopathy
Stress cardiomyopathy
Cardiac amyloidosis