To assess the association between various atrial volumetrics and the 12-month recurrence of atrial fibrillation (AF) after catheter ablation.
Approach:
Key Findings:
Among 199 patients, 45 (22.6%) experienced AA recurrence within 12 months.
All atrial volumetrics were significantly higher in the recurrence group.
Optimal cutoffs for predicting recurrence were identified for various atrial volumes: total LA ≥129.1 mL, LA body ≥112.0 mL, LAA ≥15.3 mL, total RA ≥123.0 mL, RA body ≥82.1 mL, and RAA ≥13.2 mL.
LAA volume ≥15.3 mL and RA body volume ≥82.1 mL were independent predictors of recurrence.
Interpretation:
Most dichotomized atrial volumetrics were associated with 12-month AA recurrence after AFCA.
Limitations:
The study was retrospective and conducted at a single center.
The sample size may limit the generalizability of the findings.
Conclusion:
LAA ≥15.3 mL and RA body ≥82.1 mL were independently associated with recurrence.
