Progressive Familial Heart Block, Type Ii, also known as progressive familial heart block type ii, is related to cardiomyopathy, dilated, 1d and progressive familial heart block, type ia, and has symptoms including syncope An important gene associated with Progressive Familial Heart Block, Type Ii is PFHB2 (Progressive Familial Heart Block, Type II). Affiliated tissues include heart, and related phenotypes are sudden cardiac death and atrioventricular block