The most common inherited heart conditions are cardiomyopathies and channelopathies. Inherited Cardiac Conditions Inherited cardiomyopathies include hypertrophic cardiomyopathy, dilated cardiomyopathy and arrhythmogenic right ventricular cardiomyopathy. Channelopathies arise from abnormal ion channels affecting the flow of ions which can result in abnormal heart rhythms. These include long QT syndrome (LQTS), brugada syndrome, catecholaminergic polymorphic ventricular tachyc