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Lower Major Bleeding Rates with Direct Oral Anticoagulants in Catheter Ablation of Atrial Fibrillation: an Updated Meta-analysis of Randomized Controlled Studies

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Abstract

Introduction

Catheter ablation (CA) of atrial fibrillation (AF) is an important rhythm control strategy for patients with drug-refractory AF. We aimed to perform an updated meta-analysis of direct oral anticoagulants (DOACs) vs vitamin K antagonists (VKAs) as uninterrupted anticoagulation in patients undergoing AF ablation to assess safety and efficacy of DOAC, after the publication of recent data on edoxaban in CA of AF.

Methods

We performed a meta-analysis of RCTs enrolling patients undergoing AF ablation. We assessed Mantel-Haenszel pooled estimates of risk ratios (RRs) and 95% CIs for thromboembolic events, major bleeding (MB), and non-major bleeding (NMB).

Results

A total of 2118 patients have been included in the analysis. Compared with patients receiving VKA, patients receiving DOACs had a lower, although non-significant, risk of thromboembolic events (RR, 0.40; 95% CI, 0.09–1.76; P = 0.23). MB rates in patients treated with DOACs were statistically significantly lower than VKA (RR, 0.61; 95% CI, 0.39–0.93, P = 0.02). The incidence of NMB was not significantly different (RR, 0.98; 95% CI, 0.83–1.57, p n.s.).

Conclusions

In a meta-analysis of RCTs, an uninterrupted DOACs strategy for CA of AF appears to be superior to uninterrupted VKA in terms of safety; a non-significant trend favoring DOACs in terms of efficacy is also evident.

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Correspondence to Natale Daniele Brunetti.

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AR received speaker honoraria from Boehringer Ingelheim. No other conflict of interest to disclose.

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Brunetti, N.D., Tricarico, L., Tilz, R.R. et al. Lower Major Bleeding Rates with Direct Oral Anticoagulants in Catheter Ablation of Atrial Fibrillation: an Updated Meta-analysis of Randomized Controlled Studies. Cardiovasc Drugs Ther 34, 209–214 (2020). https://doi.org/10.1007/s10557-020-06947-5

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