Cardiomyopathy, Dilated, 1v, also known as dilated cardiomyopathy 1v, is related to cardiomyopathy, dilated, 1a, and has symptoms including syncope An important gene associated with Cardiomyopathy, Dilated, 1v is PSEN2 (Presenilin 2). Affiliated tissues include heart and heart-atrium, and related phenotypes are dilated cardiomyopathy and reduced left ventricular ejection fraction