• Am. J. Cardiol. · Jul 2014

    Review

    Meta-analysis of randomized clinical trials comparing bivalirudin versus heparin plus glycoprotein IIb/IIIa inhibitors in patients undergoing percutaneous coronary intervention and in patients with ST-segment elevation myocardial infarction.

    • Ramez Nairooz, Partha Sardar, Hossam Amin, Rajesh V Swaminathan, Luke K Kim, Saurav Chatterjee, and Dmitriy N Feldman.
    • Department of Cardiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas. Electronic address: ramez.nairooz@gmail.com.
    • Am. J. Cardiol. 2014 Jul 15;114(2):250-9.

    AbstractThis study sought to investigate the relative safety and efficacy of bivalirudin versus heparin plus glycoprotein (GP) IIb/IIIa inhibitors in patients undergoing percutaneous coronary intervention (PCI) and in those with ST-segment elevation myocardial infarction (STEMI). The safety of bivalirudin in PCI, particularly in patients with STEMI, continues to be debated. We searched the on-line databases for randomized controlled trials of bivalirudin versus heparin plus GP IIb/IIIa inhibitors. Data on study design, inclusion and exclusion criteria, sample characteristics, and clinical outcomes at 30 days were extracted. A total of 19,856 PCI patients included in 7 randomized trials and 5,820 patients with STEMI included in 2 randomized trials were separately analyzed. At 30 days, bivalirudin use in patients undergoing PCI resulted in similar rates of death, myocardial infarction, repeat revascularization, and stent thrombosis. In patients with STEMI, bivalirudin use resulted in decreased cardiac mortality (risk ratio [RR] 0.70, 95% confidence interval [CI] 0.50 to 0.97, p=0.03) compared with heparin plus GP IIb/IIIa inhibitors but an increase in definite stent thrombosis at 30 days (RR 1.88, 95% CI 1.09 to 3.24, p=0.02) driven by an increase in acute stent thrombosis (RR 5.48, 95% CI 2.30 to 13.07, p=0.0001). Bivalirudin use was associated with a decrease in Thrombolysis In Myocardial Infarction (TIMI) major (RR 0.58, 95% CI 0.46 to 0.74, p<0.0001) and TIMI minor (RR 0.55, 95% CI 0.48 to 0.63, p<0.0001) bleeding rates in PCI patients as well as in a subgroup of patients with STEMI. In conclusion, in PCI patients anticoagulation with bivalirudin results in similar ischemic adverse events and a reduction in TIMI major and minor bleeding at 30 days compared with heparin plus GP IIb/IIIa inhibitors. In patients with STEMI, bivalirudin use is associated with a reduction in TIMI major and minor bleeding and fewer deaths from cardiac causes but an increase in acute and 30-day definite stent thrombosis.Copyright © 2014 Elsevier Inc. All rights reserved.

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