Abstract
To compare the efficacy and safety between EnSite Array and NavX in atrial fibrillation (AF) ablation, 79 AF patients (paroxysmal/persistent AF=62⁄17) undergoing pulmonary vein antrum isolation (PVAI) using EnSite Array (group A, n=50) or NavX (group N, n=29) were analyzed. In all, after creation of left atrial (LA) geometry and subsequent LA activation/voltage map, electrical PVAI was completed. To deliver radiofrequency energy, non-irrigated 8 mm-tip catheter (NIT) was used in all group A while NIT (n=13) or irrigated 4 mm-tip one (n=16) was used in group N although its efficacy was similar between the 2 catheters. No significant difference was noted in the age, gender, structural heart disease, and RF energy between the 2 groups. Fluoroscopy time was significantly shorter in group N than group A (32±8 vs. 22±11 min: P<0.0001). No complications were noted in all. In conclusion, PVAI using NavX is as safe and useful as Array. The former needs less fluoroscopic time.
