A flutter ablation success rate12/10/2023 Electrical isolation of the pulmonary vein (PV) is essential for catheter ablation of AF, which traditionally is achieved by radiofrequency catheter ablation (RCA) ( 7). Previous studies have confirmed the effectiveness and safety of catheter ablation in the treatment of paroxysmal atrial fibrillation (PAF) ( 4– 6). In patients who have AF even after medical treatment, catheter ablation is an alternative approach that can reduce complications and improve quality of life ( 2, 3). Preoperative LAAEV is an independent predictor of postoperative recurrence of PAF.Ītrial fibrillation (AF) occurs in 0.71% of the Chinese population aged 35 years or older, and the incidence increases sharply with age ( 1). Multiple Cox regression analysis showed that only LAAEV was predictive of postoperative recurrence of PAF (hazard ratio: 0.979 95% confidence interval: 0.961–0.997).Ĭonclusion: Our study found that there was no statistically significant difference in long-term recurrence rates among the RF, Freeze, and Freeze-plus-RF groups. 53.72 ± 6.52, respectively p = 0.035) were related to postoperative recurrence. 35.00 ± 4.37, respectively p = 0.028), and LA vertical dimension (recurrence vs. 65.59 ± 18.83, respectively, p = 0.003), left atrial (LA) anteroposterior dimension (recurrence vs. Further analysis found that the preoperative left atrial appendage emptying velocity (LAAEV) (recurrence vs. The maintenance rate of sinus rhythm was highest in the Freeze-plus-RF group, but differences among the three groups were not statistically significant. Results: At 48 months (the median follow-up period), the sinus rhythm maintenance rate was 77.4% in the RF group, 72.7% in the Freeze group, and 81.8% in the Freeze-plus-RF group. Predictive factors for the recurrence of AF were also investigated. The recurrence rate of atrial fibrillation (AF) in the three groups was calculated. All patients underwent standardized follow-up. Methods: There were 238 patients involved in this study, including 106 radiofrequency (RF) ablation cases (RF group), 66 cryoablation cases (Freeze group), and 66 cases treated by three-dimensional guided cryoablation combined with radiofrequency ablation (Freeze-plus-RF group). The aim of this study was to observe the long-term recurrence rate of PAF when treated by these three catheter ablation methods, and to explore clinical factors that can potentially predict PAF recurrence following catheter ablation. There have been no reports comparing long-term recurrence rates following radiofrequency ablation, cryoablation, and three-dimensional guided cryoablation plus radiofrequency ablation. However, recurrence of PAF varies between 10 and 30% for radiofrequency ablation. Second Hospital of Hebei Medical University, Shijiazhuang, ChinaĪims: Catheter ablation of paroxysmal atrial fibrillation (PAF) has been shown to be effective and safe.Ling You Xiaohong Zhang Jing Yang Lianxia Wang Yan Zhang Ruiqin Xie *
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