Identified causes in the survivors of sudden cardiac arrest
| Disease | n (%) |
| Long QT syndrome | 9 (25) |
| LQT 1 | 0 |
| LQT 2 | 3 (8) |
| LQT 3 | 1 (3) |
| Other LQTs | 5 (14) |
| CPVT | 6 (17) |
| Brugada syndrome | 2 (6) |
| ARVC | 2 (6) |
| HCM | 2 (6) |
| LVNC | 2 (6) |
| Others | 4 (11) |
| Idiopathic VF | 9 (25) |
ARVC, arrhythmogenic right ventricular cardiomyopathy; CPVT, catecholaminergic polymorphic ventricular tachycardia; HCM, hypertrophic cardiomyopathy; LQT, long QT; LVNC, left ventricular non-compaction; VF, ventricular fibrillation.