− | Dilated cardiomyopathy (DCM) occurs when there is a progressive reduction in systolic myocardial contractility. Decreased myocardial contractility affects the removal of blood from the ventricle at systole. A larger volume of blood increases the end diastolic pressures causing dilation of the ventricle and the development of '''eccentric hypertrophy'''. | + | Dilated cardiomyopathy (DCM) is characterized by progressive '''systolic dysfunction''' (loss of myocardial contractile function) and '''ventricular dilation''' (eccentric hypertrophy). |