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).