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  • Title: Prognostic impact of previous percutaneous coronary intervention in patients with diabetes mellitus and triple-vessel disease undergoing coronary artery bypass surgery.
    Author: Thielmann M, Neuhäuser M, Knipp S, Kottenberg-Assenmacher E, Marr A, Pizanis N, Hartmann M, Kamler M, Massoudy P, Jakob H.
    Journal: J Thorac Cardiovasc Surg; 2007 Aug; 134(2):470-6. PubMed ID: 17662792.
    Abstract:
    OBJECTIVES: In the current era of stent usage, percutaneous coronary intervention is more frequently performed as the initial revascularization strategy in multivessel disease before patients are finally referred to coronary artery bypass grafting. We sought to determine whether previous PCI has a prognostic impact on outcome in patients with diabetes mellitus and triple-vessel disease. METHODS: Between January 2000 and March 2006, 621 consecutive patients with diabetes mellitus and triple-vessel disease undergoing isolated first-time coronary artery bypass grafting as the primary revascularization procedure (group 1) were evaluated for in-hospital mortality and major adverse cardiac events and compared with 128 patients with diabetes mellitus and triple-vessel disease treated during the same time period with previous percutaneous coronary intervention before coronary artery bypass grafting (group 2). RESULTS: All-cause in-hospital mortality was 2.9% in group 1 and 7.8% in group 2 (odds ratio, 2.84; 95% confidence interval, 1.19-6.68; P = .02). In-hospital major adverse cardiac events were identified in 6.1% and 14.1% (odds ratio, 2.51; 95% confidence interval, 1.32-4.73; P < .005), respectively. Risk-adjusted multivariate logistic regression analysis of previous percutaneous coronary intervention significantly correlated with in-hospital mortality (odds ratio, 2.87; 95% confidence interval, 1.29-6.37; P = .03) and major adverse cardiac events (odds ratio, 2.54; 95% confidence interval, 1.39-4.62; P = .01). After computed propensity score matching based on 12 major preoperative risk factors to control selection bias, conditional regression analysis confirmed previous percutaneous coronary intervention to be associated with all-cause in-hospital mortality (odds ratio, 2.97; 95% confidence interval, 1.12-7.86; P = .03) and major adverse cardiac events (odds ratio, 2.46; 95% confidence interval, 1.18-5.15; P = .02) in these patients. CONCLUSION: Previous percutaneous coronary intervention before coronary artery bypass grafting in patients with diabetes mellitus and triple-vessel disease independently increases the risk for in-hospital mortality and major adverse cardiac events.
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