An international panel of experts on DCM genetics evaluated published evidence on 51 genes relevant to DCM, and they summarized that 12 genes (BAG3, DES, FLNC, LMNA, MYH7, PLN, RBM20, SCN5A, TNNC1, TNNT2, TTN) had definitive or strong evidence, and 7 genes (ACTC1, ACTN2, JPH2, NEXN, TNNI3, TPM1, VCL) had moderate evidence (9). Here, TTN is linked to familial dilated cardiomyopathy.