Abstract
Previous studies have shown that women with atrial fibrillation (AF) have a higher incidence of recurrence and non-pulmonary vein (non-PV) triggers. However, there remains an incomplete understanding of the impact of gender on AF ablation strategies and outcomes. The purpose of this study was to evaluate the impact of gender on AF ablation outcomes. We analyzed 1568 AF ablations in 1412 patients (34% female) performed at a single tertiary care center between January 2013 and July 2021. Patients were followed for at least 6 months (mean 34 months) for detection of AF recurrence, complications, and emergency department visits/hospitalizations. The effect was assessed by multivariate logistic regression analysis using propensity score matching (PSM). Mean age was 64 years, and mean body mass index (BMI) was 31 kg/m2. Seventy-seven percent of patients underwent de novo ablations. Twenty-seven percent of patients had persistent AF, with a recurrence rate of 37%. There was no difference in AF recurrence when stratified by gender (hazard ratio [HR] 1.15; 95% confidence interval [CI] 0.92-1.43; P >.05) and age. After PSM gender 1:1 (criteria: age, type of AF, hypertension, diabetes mellitus, and BMI; n = 888 patients), there was no difference in AF recurrence or procedure-related complications. Having a history of persistent AF (HR 1.54; 95% CI 1.18-1.99; P = .001) predisposed to recurrence of AF. Persistent AF (HR 2.99; 95% CI 1.94-4.78; P <.001) and age >70 years (HR 1.03; 95% CI 1.02-1.05; P <.001) were associated with the need for additional substrate modification with no difference based on gender. There was no difference in overall safety or efficacy outcomes between genders after AF ablation.
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