How to map and ablate parahisian ventricular arrhythmias
Ventricular tachycardia (VT) and premature ventricular contractions (PVCs) originating in the vicinity of the His-bundle region represent 3% –9% of all idiopathic ventricular arrhythmias (VAs).1,2 In addition, patients with cardiomyopathies and scar-related VT may exhibit septal arrhythmogenic substrate involving the parahisian region.3 Catheter ablation of these arrhythmias poses particular challenges because of the risk of inadverten t atrioventricular (AV) block, and a systematic approach is important to improve outcomes and minimize complications.
Source: Heart Rhythm - Category: Cardiology Authors: Andres Enriquez, Carlos Tapias, Diego Rodriguez, Jackson Liang, Francis Marchlinski, Luis Saenz, Fermin Garcia Tags: Hands on Source Type: research