Unusual Location of a Ventricular Tachycardia: Let the Cat Out of the Bag

A 49-year-old woman with an operated Ebstein's anomaly who had a bioprosthetic tricuspid valve (TV) and plication of the atrialized portion of the right ventricle (RV) underwent an ablation for monomorphic ventricular tachycardia (VT). A 3-dimensional electroanatomic map during tachycardia suggested