Inherited cardiac condition

In this context this refers to a cardiac condition that is genetically determined. Many such conditions predispose to syncope, ventricular arrhythmia and sudden death, including long and short QT syndromes, Brugada syndrome, arrhythmogenic right ventricular cardiomyopathy, catecholaminergic polymorphic ventricular tachycardia, hypertrophic cardiomyopathy, familial dilated cardiomyopathy. Many of these are due to abnormalities in ion channels, which are microscopic pores in cell membranes, important for the normal functioning of the cells.