Abstract
Current consensus guidelines suggest direct oral anticoagulants (DOACs) are interrupted periprocedurally for catheter ablation (CA) of atrial fibrillation (AF). However, this may predispose patients to thromboembolic complications. This study investigates the safety of CA for AF on uninterrupted DOACs compared to uninterrupted warfarin. This was a single-center, retrospective study of consecutive patients undergoing CA for AF. All patients were heparinized prior to transseptal puncture with a target-activated clotting time (ACT) of 300-350 seconds. Patients who had procedures performed on continuous DOAC were compared to those on continuous warfarin. Clinical, procedural data, and complications occurring up to 3 months were analyzed from a prospective registry with additional review of electronic health records. A total of 1,884 procedures were performed over 28 months: 761 (609 patients) on uninterrupted warfarin and 1,123 (900 patients) on uninterrupted DOAC (rivaroxaban 64%, apixaban 32%, and dabigatran 4%). There was no difference in the composite endpoint of death, thromboembolism, or major bleeding complication (2.2% vs 1.4%, P = 0.20). There was no difference in the complications comprising this, including tamponade, hem...Continue Reading
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