However, in many of the causes that are classified as non-genetic, such as in toxic enolic cardiomyopathy or peripartum cardiomyopathy, there is a shared genetic predisposition with both familial and sporadic idiopathic dilated cardiomyopathy and some of the genes that are implicated in DCM, as TTN truncated variants (TTNtv) and related genes, may also occasion these cardiomyopathies with specific triggers [14,15]. The gene discussed is TTN; the disease is familial dilated cardiomyopathy.