Antidromic atrioventricular reentrant tachycardia Any regular atrial or junctional reentrant tachycardias with: aberration/bundle branch block pre-excitation/bystander accessory pathway Ventricular tachycardia/flutter Irregular Atrial fibrillation or atrial tachycardia with varying block conducted with aberration Antidromic atrioventricular reentrant tachycardia with a variable VA conduction Pre-excited AF Polymorphic VT Torsade de pointes Ventricular fibrillation Procedures with text in italics are classified as cumbersome, while those shown in normal text are easily applicable.A, atrial; H, His; cPPI, corrected postpacing interval; RBBB, right bundle branch block; SA, stimulus to atrium interval; SR, sinus rhythm; TCL, tachycardia cycle length; V, ventricular; VA, ventriculo-atrial.Modified from Katritsis and Josephson. 17