Gender-based Long-term Outcome for Atrial Fibrillation Patients post
Catheter Ablation
Abstract
Background Previous research indicates disparities in atrial
fibrillation (AF) recurrence and complications following catheter
ablation in women; however, long-term outcomes based on gender remain
underexplored. Objective This study evaluated the long-term
rates of AF recurrence and major adverse cardiovascular and
cerebrovascular events (MACCE) following catheter ablation,
investigating gender-related risk factors to inform clinical practice
improvement. Methods We conducted a retrospective analysis
using data from a prospectively observational registry of AF ablation
procedures at our institution from 2015 to 2020. Patients were followed
up for MACCE and AF recurrence. The risk factors of AF recurrence and
MACCE were further explored. Results The study cohort consisted
of 2,293 patients, including 1,441 males and 852 females, and had an
average follow-up duration of 50.36 months. After catheter ablation,
females exhibited a notably higher rate of recurrence compared to males,
with a hazard ratio of 1.305 and a 95% confidence interval ranging from
1.101 to 1.547, which was statistically significant (p=0.0014). Gender
differences in AF recurrence persisted regardless of early versus late
intervention (both p<0.05). No significant difference in MACCE
rates was observed between genders. Independent risk factors for AF
recurrence included female gender, diabetes, left atrial diameter ≥40
mm. Conclusions Gender differences significantly impact the
long-term outcomes of AF recurrence, but not MACCE rates post-catheter
ablation. The study highlights the necessity to integrate gender
considerations into AF management strategies.