• J. Am. Coll. Cardiol. · Oct 2013

    Meta Analysis

    Outcomes after complete versus incomplete revascularization of patients with multivessel coronary artery disease: a meta-analysis of 89,883 patients enrolled in randomized clinical trials and observational studies.

    • Santiago Garcia, Yader Sandoval, Henri Roukoz, Selcuk Adabag, Mariana Canoniero, Demetris Yannopoulos, and Emmanouil S Brilakis.
    • Division of Cardiology, Department of Medicine, Minneapolis Veterans Affairs Healthcare System, Minneapolis, Minnesota; Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota. Electronic address: garci205@umn.edu.
    • J. Am. Coll. Cardiol. 2013 Oct 15; 62 (16): 1421-31.

    ObjectivesThis study sought to perform a systematic review and meta-analysis of studies comparing complete revascularization (CR) versus incomplete revascularization (IR) in patients with multivessel coronary artery disease.BackgroundThere are conflicting data regarding the benefits of CR in patients with multivessel coronary artery disease.MethodsWe identified observational studies and subgroup analysis of randomized clinical trials (RCT) published in PubMed from 1970 through September 2012 using the following keywords: "percutaneous coronary intervention" (PCI); "coronary artery bypass graft" (CABG); "complete revascularization"; and "incomplete revascularization." Main outcome measures were total mortality, myocardial infarction, and repeat revascularization procedures.ResultsWe identified 35 studies including 89,883 patients, of whom 45,417 (50.5%) received CR and 44,466 (49.5%) received IR. IR was more common after PCI than after CABG (56% vs. 25%; p < 0.001). Relative to IR, CR was associated with lower long-term mortality (risk ratio [RR]: 0.71, 95% confidence interval [CI]: 0.65 to 0.77; p < 0.001), myocardial infarction (RR: 0.78, 95% CI: 0.68 to 0.90; p = 0.001), and repeat coronary revascularization (RR: 0.74, 95% CI: 0.65 to 0.83; p < 0.001). The mortality benefit associated with CR was consistent across studies irrespective of revascularization modality (CABG: RR: 0.70, 95% CI: 0.61 to 0.80; p < 0.001; and PCI: RR: 0.72, 95% CI: 0.64 to 0.81; p < 0.001) and definition of CR (anatomic definition: RR: 0.73, 95% CI: 0.67 to 0.79; p < 0.001; and nonanatomic definition: RR: 0.57, 95% CI: 0.36 to 0.89; p = 0.014).ConclusionsCR is achieved more commonly with CABG than with PCI. Among patients with multivessel coronary artery disease, CR may be the optimal revascularization strategy.Copyright © 2013 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

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