Predictors of ATAs Recurrence
Univariable analysis of seventeen preoperative and perioperative variables was performed to evaluate potential predictors of ATAs recurrence (Table 6). On multivariable Fine-Gray regression, increased preoperative duration of AF (SHR 1.92, 95% CI (1.16, 3.17),p =0.011) and early postoperative ATAs (SHR 2.06, 95% CI (1.06, 4.00), p =0.033) were associated with increased risk of ATAs recurrence. The relationship between AF duration and ATA recurrence is depicted in Figure 3. Despite significance on univariable regression, increased left atrial size was not predictive of future ATAs recurrence on multivariable regression (p =0.116). Number of prior catheter ablations was also not a significant predictor of recurrence (p =0.325).