Keywords: AV, atrioventricular; Atrioventricular reciprocating tachycardia; CS, coronary sinus; ECG, electrocardiogram; EPS, electrophysiological study; HIS, His bundle; LV, left ventricle; Lateral bypass tract; Orthodromic reciprocating tachycardia; PVC, premature ventricular complex; RA, right atrium; RV, right ventricle; Retrograde conduction; SVT, supraventricular tachycardia; Supraventricular tachycardia; VA, ventriculoatrial.