Ablation of Ventricular Tachycardia Using a Non-ventricular Site

A 49 year old man with a non-ischemic cardiomyopathy and a mechanical mitral valve presented with unstable ventricular tachycardia for ablation. Multiple procedural and mapping strategies were considered. Ultimately, the posterior superior process of the left ventricle accessed from the right atrium was a critical target site for ablation.