Ablation of the atrioventricular junction - Technique, acute and long-termresults in 115 consecutive patients

Atrioventricular junctional ablation is an attempt to interrupt conduction from the atrium to the ventricle using radiofrequency energy. The objective is to ablate the compact atrioventricular node as high as possible, leavin g a stable ventricular escape rhythm. The compact node is identified in par t by its relation to His recordings and partly through the known anatomy. I n our series of 115 consecutive patients, atrioventricular block was achiev ed from the right side in 96% of patients and the remainder had the atriove ntricular node ablated from the left side. Long-term success, i.e. complete heart block, was achieved in all patients. Complications in this and other series are rare, but there remains concern about sudden death in these pat ients.