Figure 3.

Pedigrees of the families. The father of patient 1 (P1) (a) passed away at age 85, his mother is now 86 years, both are not known with cardiological problems. His dizygotic twin sisters have no (cardiac) complaints. The parents of patient 2 (P2) (b) died at age 77 and 74 and both were not known with cardiological problems. His only two sibs died, one at 4 years of age from meningitis, the other one from cancer at age 48. Two sons have no signs of cardiomyopathy at ages 22 and 29, respectively. The youngest is known with sinus bradycardia and a complete right bundle branch block (RBBB) from age 19, but did not show a DCM phenotype with an LVEF of 57% and normal LV dimensions