Background: Prediction of AF recurrence after RF ablation based on pre-procedural factors allows better patient selection and ablation planning. We hypothesized pre-procedural APBs could predict recurrence of AF after RFA. Methods: 140 PAF patients (43% females) undergoing RFA from 2018.01.01 to 2020.1.31 were included. APBs and indices analyzed from 24-hour Holter recording within 1 week of RFA. Recurrence noted at 3 and 12 months. Patients were categorized into LRAF and non-LRAF groups and independent associations computed using x2 test and t-tests. Individual prediction ability was calculated using univariate logistic regression and statistically significant variables incorporated into multivariate regression. Subgroup analysis among 120 patients with APBs was computed to estimate if ABP count and its’ indices could predict ERAF and LRAF. Results: 85.5% LRAF subjects had APBs(mean: 1531±3720/day), whereas 86% NLRAF subjects had APBs(mean: 4370±9915/day). 63.3% (50/92) in LRAF group had p on T APBs opposed to a higher 44% (18/48) in NLRAF group. Only APB count and P on T APB revealed independent association with LRAF (p=0.046 and p=0.042) but not ERAF among 120 patients with APBs. In this subset of patients, APB count negatively predicted LRAF (95% CI=0.69-0.98, P=0.028) and P on T APB positively predicted LRAF (95%CI= 0.211-0.978, P=0.044) but not ERAF in univariate analysis and only P on T APB predicted LRAF in multivariate analysis. Conclusion: In PAF patients undergoing RFA, presence of pre-procedural APB isn’t a risk factor for LRAF. Presence of p on T APBs prior to ablation is a risk factor for LRAF.