Safety of antithrombotic drugs in patients with atrial fibrillation and non-end-stage chronic kidney disease: Meta-analysis and systematic review.
Thrombosis research(2015)
Abstract
OBJECTIVE:To evaluate the safety of antithrombotic drugs used in patients with both atrial fibrillation (AF) and non-end-stage chronic kidney disease (NECKD).
METHODS:A search was performed for studies on major bleeding outcomes in patients with concurrent AF and NECKD using Medline and Cochrane databases on 19th February, 2015. Fixed- or random-effects meta-analysis was adopted for evaluating pooled effect sizes according to whether heterogeneity existed.
RESULTS:Twelve articles were included for analysis. Three studies evaluated AF patients who took warfarin vs. placebo/antiplatelet drugs in the presence of NECKD. No significant difference in major bleeding risk was observed according to the pooled analysis using the random-effects model (RR: 1.05, 95% CI: 0.74-1.36). The risk of a composite of major bleeding outcomes was reduced by 19% in patients randomized to direct oral anticoagulants (DOACs) compared to dose-adjusted warfarin from pooled data of three randomized controlled trials with regard to AF and NECKD (RR: 0.81, 95% CI: 0.75-0.88). This superiority of DOACs to warfarin maintained until the renal function was severely impaired.
CONCLUSIONS:In patients with AF and NECKD, no significant increase in the incidence of major bleeding outcomes was observed in warfarin use compared with placebo/antiplatelet drugs. DOACs reduced the risk of major bleeding by 19% compared to warfarin and further data-exploration indicated that the risk did not increase as renal function deteriorated during the renal status of mild to moderate impairment.
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