TITLE:
Left atrial voltage remodeling after pulmonary venous isolation with multipolar radiofrequency ablation
AUTHORS:
Francesco Laurenzi, Piergiuseppe De Girolamo, Augusto Pappalardo, Andrea Avella
KEYWORDS:
Atrial Fibrillation; Pulmonary Vein Isolation; Multipolar Circular Ablation Catheter; Electroanatomic Mapping
JOURNAL NAME:
World Journal of Cardiovascular Diseases,
Vol.3 No.8,
November
18,
2013
ABSTRACT: Purpose: Pulmonary vein isolation (PVI) is the accepted primary endpoint for catheter ablation of atrial fibrillation (AF). The aim of this study was to evaluate the level of PVI by PVAC, a multipolar circular catheter utilizing bipolar/unipolar radiofrequency (RF) energy. Methods: Twenty patients with paroxysmal AF underwent PVAC ablation. PVI was validated by voltage reduction and pacing tests. Before and after RF ablation, left atrium (LA) and PV electroanatomic mapping (EAM) were performed by EnSite NavX system. Voltage abatement was considered for potentials 24mm: 9/20 (45%) vs 11/57 (19%), p