Keywords: Ablation; BrS, Brugada syndrome; Brugada syndrome; Cardiac mapping; ECG, electrocardiogram; Epicardium; Flecainide; ICD, implantable cardioverter-defibrillator; RF, radiofrequency; RV, right ventricle; RVOT, right ventricular outflow tract; VF, ventricular fibrillation; VT, ventricular tachycardia.