Triple versus double antithrombotic therapy in patients with atrial fibrillation and stent implantation: A meta-analysis of randomized trials

Abstract

BACKGROUND Appropriate double (DT) and triple (TT) antithrombotic therapy in patients with atrial fibrillation and stent implantation is unclear. AIMS The aim of the study was to perform a meta.analysis of studies comparing DT and TT in patients with atrial fibrillation and stent implantation. METHODS Of the 450 reports, 5 randomized trials were included in the meta.analysis: WOEST, ISAR.REACT, PIONEER AF.PCI, RE.DUAL PCI, and AUGUSTUS, with a total of 9931 patients. RESULTS Treatment efficacy, as assessed by the incidence of major adverse cardiac events, did not differ significantly between both therapeutic strategies: 8.98% for DT vs 8.71% for TT (odds ratio [OR], 1.02; 95% CI, 0.86.1.21). The incidence of hemorrhagic complications was significantly lower in patients treated with DT than TT (13.1% and 21.0%, respectively; OR, 0.57; 95% CI, 0.47.0.70). In over 90% of patients, DT included clopidogrel along with an oral anticoagulant (non.vitamin K antagonist oral anticoagulant or vitamin K antagonist). CONCLUSIONS The results of our meta.analysis are clearly in line with the current trend of the fastest possible reduction in the use of TT in favor of DT. Almost half lower risk of hemorrhagic complications during DT compared with TT, with similar efficacy of the 2 strategies, provides an argument for the wider use of DT in patients with AF and stent implantation.