Keywords: CHD, congenital heart disease; Congenital heart disease; HLHS, hypoplastic left heart syndrome; Hypoplastic left heart syndrome; ICD, implantable cardioverter-defibrillator; RV-PA, right ventricle to pulmonary artery; S-ICD, subcutaneous implantable cardioverter-defibrillator; Subcutaneous implantable cardioverter-defibrillator; VT, ventricular tachycardia; Ventricular fibrillation.