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Interven??o Coronariana Percutanea prévia como fator de risco para Revasculariza??o Miocárdica

DOI: 10.1590/S0066-782X2012005000057

Keywords: myocardial revascularization, angioplasty, balloon, coronary, risk factors, mortality.

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Abstract:

background: percutaneous coronary intervention (pci) has increased as the initial revascularization strategy in chronic coronary artery disease. consequently, more patients undergoing coronary artery bypass grafting (cabg) have history of coronary stent. objective: evaluate the impact of previous pci on in-hospital mortality after cabg in patients with multivessel coronary artery disease. methods: between may/2007 and june/2009, 1099 consecutive patients underwent cabg on cardiopulmonary bypass. patients with no pci (n=938, 85.3%) were compared with patients with previous pci (n=161, 14.6%). logistic regression models and propensity score matching analysis were used to assess the risk-adjusted impact of previous pci on in-hospital mortality. results: both groups were similar, except for the fact that patients with previous pci were more likely to have unstable angina (16.1% x 9.9%, p=0.019). in-hospital mortality after cabg was higher in patients with previous pci (9.3% x 5.1%, p=0.034) and it was comparable with euroscore and 2000 bernstein-parsonnet risk score. using multivariate logistic regression analysis, previous pci emerged as an independent predictor of postoperative in-hospital mortality (odds ratio 1.94, 95% ci 1.02-3.68, p=0.044) as strong as diabetes (odds ratio 1.86, 95% ci 1.07-3.24, p=0.028). after computed propensity score matching based on preoperative risk factors, in-hospital mortality remained higher among patients with previous pci (odds ratio 3.46, 95% ci 1.10-10.93, p=0.034). conclusions: previous pci in patients with multivessel coronary artery disease is an independent risk factor for in-hospital mortality after cabg.this fact must be considered when pci is indicated as initial alternative in patients with more severe coronary artery disease. (arq bras cardiol. 2012; [online].ahead print, pp.0-0)

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