Figure 4.

Pedigree of 3 overlap syndrome cases who were compound heterozygous for SCN5A mutations. Circles indicate females, squares, males; symbols with diagonal lines represent deceased individuals. Open symbols represent asymptomatic individuals, filled symbols were affected by arrhythmogenic syndromes according to the color code. SSS: sick sinus syndrome; PCCD: progressive cardiac conduction disease; VT: ventricular tachycardia; BrS: Brugada syndrome; LQTS: long QT syndrome; SCD: sudden cardiac death.