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Feasibility and safety of uninterrupted apixaban in patients undergoing radiofrequency ablation for atrial fibrillation

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Abstract

Background

An optimal periprocedural anticoagulation strategy is essential for minimizing bleeding and thromboembolic complications during atrial fibrillation (AF) ablation. Limited data are available on the uninterrupted use of apixaban in patients with AF undergoing catheter ablation. This study aimed to evaluate the safety and efficacy of uninterrupted apixaban in patients undergoing radiofrequency ablation for AF. In particular, we evaluated silent cerebral infarction (CI) during radiofrequency catheter ablation of AF.

Methods

This was a prospective and nonrandomized cohort study. A total of 259 consecutive patients who underwent AF ablation were evaluated; 157 patients received apixaban (Api group), and 102 patients received dose-adjusted (PT-INR 2.0-3.0) warfarin (Wf group). All oral anticoagulants were continued throughout the periprocedural period, including the morning of the procedure. Intravenous heparin was administered during the procedure and neutralized by protamine at the end of the procedure. Sixty-one patients underwent magnetic resonance imaging (MRI) after the procedure to evaluate for silent CI.

Results

Mean age was 66 ± 11 years; there were 91 men (73.7%) and 148 cases of paroxysmal AF (57.1%). No symptomatic CI was observed. Silent CI occurred in 6/61 patients (9.8%). No significant difference was observed between the Api group (4/30 patients, 13.3%) and the Wf group (2/31 patients, 6.5%). There was no significant difference regarding major bleeding events between the Api group (1/157 patients, 0.6%) and the Wf group (2/102 patients, 2.0%).

Conclusions

The safety and efficacy of uninterrupted apixaban for patients undergoing AF ablation were equivalent to warfarin for preventing bleeding and thromboembolic complications.

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Correspondence to Yuki Osaka.

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The authors declare that they have no conflict of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in this study.

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Osaka, Y., Ono, Y., Tao, S. et al. Feasibility and safety of uninterrupted apixaban in patients undergoing radiofrequency ablation for atrial fibrillation. J Interv Card Electrophysiol 58, 35–41 (2020). https://doi.org/10.1007/s10840-019-00563-6

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  • DOI: https://doi.org/10.1007/s10840-019-00563-6

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