Retrograde coronary venous ethanol ablation for ventricular tachycardia in a patient with inaccessible substrate due to previous surgery.

Introduction: Catheter-based radiofrequency (RF) ablation is generally regarded as the standard approach for patients with ventricular tachycardia (VT) refractory to antiarrhythmic drug therapy and may be considered as a first-line approach when there is a preference to avoid these agents. Patients with a history of cardiac surgery may have VT substrate inaccessible to catheter ablation due to intervening prosthetic materials or scar.

Methods And Results: This article describes a 55-year-old patient with a history of surgically repaired subvalvular aortic stenosis and subsequent valve-sparing root replacement who presented with sustained VT.