Predictors of AF recurrence
A univariate Cox proportional hazard regression analysis, including of
the AF duration, LA diameter, EF, LA volume, CHA2DS2-VASc score, LVA/LA
surface area after the PVI, max-DF value, max-%NP value, high-DF sites
overlapping with LVAs, and %NP>50% sites overlapping with
LVAs, indicated that the LVA/LA surface area after the PVI (hazard ratio
[HR] 1.066; confidence interval [CI], 1.017-1.117, P=0.007) and
high-DF sites overlapping with LVAs (HR 1.031; CI, 1.083-5.381, P=
0.031) were significantly associated with AF/AT recurrence. In a
multivariate analysis, the LVA/LA surface area after the PVI (HR 1.079;
CI, 1.026-1.134, P=0.003) and high-DF sites overlapping with LVAs (HR
2.842; CI, 1.238-6.527, P= 0.014) were independent predictors of AF
recurrence.