Novel use of preprocedure imaging for planning and guidance of right atrium–to–left ventricle access for catheter ablation of ventricular tachycardia

Traditional approaches to access the left ventricle (LV) for endocardial catheter ablation of ventricular tachycardia (VT) are not feasible in patients with simultaneous mitral and aortic mechanical valve replacements. Recent data1 have shown that access directly from the right atrium (RA) through the inferior septal process of the LV, site of a so-called Gerbode defect, can be safely performed. In this report, preprocedure imaging was used to...