Does percutaneous epicardial radiofrequency ablation successfully treat a right atrial appendage-ventricular accessory pathway after failed endocardial attempts?
Transcutaneous epicardial instrumentation provides a successful alternative for mapping and ablating accessory pathways that fail conventional endocardial approaches.
Ablation of RAA‐Ventricular AP. Ablation of RAA‐Ventricular AP. Epicardial location of accessory AV pathways may be responsible for the failure of conventional endocardial radiofrequency catheter ablation. Transcutaneous epicardiul instrumentation provides access to the normal pericardium with no need for invasive thoracotomy or thoracoscopy. We report the case of successful epicardial mapping and ablation of a rigbt atrial appendage‐ventricular connection using a percutaneous epicardial approacb, after repeated failure of endocardial ablation attempts. ( J Curdiovasc Electrophysiol, Vol. 11, pp. 1170‐1173. October 2000 )
Lam et al. (Sun,) studied this question.