According to the European Society of Cardiology (ESC), cardiomyopathy is defined as a myocardial disorder in which the heart muscle is structurally and functionally abnormal, in the absence of an underlying cause.
1 One of the subtypes, dilated cardiomyopathy (DCM), is characterised by abnormal ventricular enlargement together with impaired systolic function, eventually leading to heart failure. It is the most common indication for cardiac transplantation.
2 DCM can be isolated, but also multiple family members can be affected. About 30% of DCM cases are reported to be familial.
3-7 …