Similarly, the young man who collapsed immediately after playing football and was diagnosed with LVH could have had a SCD secondary to long QT type 1 (gene KCNQ1) or catecholaminergic polymorphic ventricular tachycardia (CPVT) (gene RyR2)29. Here, KCNQ1 is linked to catecholaminergic polymorphic ventricular tachycardia.