Serum CA-125 levels showed nosignificant change neither in the no AF recurrence group (9.7 (7.6–13.0) kU/L vs8.7 (6.7–12.8) kU/L; p = 0.104) nor in the recurrence group (11.3(7.8–15.1) kU/L vs 11.0 (7.2–14.0) kU/L; p = 0.681). Here, MUC16 is linked to atrial fibrillation.