MYH7 and cardiac arrhythmia: In patients with DCM, the incidence of a life-threatening arrhythmia (3/4 patients; 75%) in patients harboring LMNA variants was higher than that in patients harboring TTN (0/5 patients; 0%) (p = 0.008) or MYH7 (0/4 patients; 0%; p = 0.02) variants (Fig. 3).