PO-02-038 LESION SIZE PREDICTION MODULE-GUIDED RADIOFREQUENCY ABLATION VERSUS CRYOBALLOON ABLATION FOR PAROXYSMAL ATRIAL FIBRILLATION: A PROPENSITY SCORE MATCHED ANALYSIS

In previous studies show cryoballoon ablation (CBA) and radiofrequency (RFA) are similar results. However, RFA technology has progressed in few years, lesion size assessment module developed to improve durability. The aim of this study was compare clinical outcome guided by prediction second or fourth-generation CBA patients with paroxysmal atrial fibrillation (PAF). We enrolled 1905 PAF (65.2 ± 11.3years, male 68.0%). 205 after who underwent module, Ablation Index Lesion Size Index, 1700 September 2014 August 2020, evaluated retrospectively. performed pulmonary vein isolation followed additional non-pulmonary foci ablation. selected 194 treated (follow-up period 14.1 7.9months) 23.9 12.9months) using propensity score matching. During a follow-up period, tachyarrhythmia recurrence documented 34 (17.5%) 38 (19.6%) CBA. Freedom from without anti-arrhythmic-drugs single procedure 2 groups (1-year Kaplan–Meier survival rate estimates, RFA:84.9% CBA:88.9%, p=0.358). mean total time shorter than (109 45 vs 148 54 minutes, P<0.001), the fluoroscopy (20 18 33 21 P<0.001). proportion slightly higher for (42patients, 21.7%) (36patients, 18.6%), but difference not significant (P=0.447). Similarly, there no left atrium, although more common (CBA: 16 patients, 8.3% RFA: 10 5.2%, p=0.223). [image] And, A 20 32 number people reconnection each (50.0%) 15 (46.9%) CBA, respectively, as percentage(P=0.83). found that treatment PAF, module-guided statistically efficacy still results even today.