Keywords: Ablation; ECG, electrocardiogram; HCM, hypertrophic cardiomyopathy; Hypertrophic cardiomyopathy; LV, left ventricle; LVZ, low-voltage zone; NICM, nonischemic cardiomyopathy; Pathology; RF, radiofrequency; RFCA, radiofrequency catheter ablation; VT, ventricular tachycardia; Ventricular tachycardia.