The workup of a paediatric cardiac arrest survivor; ACM, arrhythmogenic cardiomyopathy; AED, automated external defibrillator; BrS, Brugada syndrome; CPVT, catecholaminergic polymorphic ventricular tachycardia; DCM, dilated cardiomyopathy; ECG, electrocardiogram; ERS, early repolarization syndrome; HCM, hypertrophic cardiomyopathy; LGE, late gadolinium enhancement; LQTS, long QT syndrome; MRI, magnetic resonance imaging; QRS, Q wave, R wave, S wave; VF, ventricular fibrillation; VT, ventricular tachycardia; WPW, Wolff-Parkinson-White syndrome.