Sistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSPLISBOA, Luiz Augusto FerreiraMEJIA, Omar Asdrubal VilcaMOREIRA, Luiz Felipe PinhoDALLAN, Luis Alberto OliveiraPOMERANTZEFF, Pablo Maria AlbertoDALLAN, Luis Roberto PalmaMASSOTI, Maria Raquel B.JATENE, Fabio B.2014-09-302014-09-302014REVISTA BRASILEIRA DE CIRURGIA CARDIOVASCULAR, v.29, n.1, p.1-8, 20140102-7638https://observatorio.fm.usp.br/handle/OPI/7440Introduction: The most widely used model for predicting mortality in cardiac surgery was recently remodeled, but the doubts regarding its methodology and development have been reported. Objective: The aim of this study was to evaluate the performance of the EuroSCORE II to predict mortality in patients undergoing coronary artery bypass grafts or valve surgery at our institution. Methods: One thousand consecutive patients operated on coronary artery bypass grafts or valve surgery, between October 2008 and July 2009, were analyzed. The outcome of interest was in-hospital mortality. Calibration was performed by correlation between observed and expected mortality by Hosmer Lemeshow. Discrimination was calculated by the area under the ROC curve. The performance of the EuroSCORE II was compared with the EuroSCORE and InsCor (local model). Results: In calibration, the Hosmer Lemeshow test was inappropriate for the EuroSCORE II (P=0.0003) and good for the EuroSCORE (P=0.593) and InsCor (P=0.184). However, the discrimination, the area under the ROC curve for EuroSCORE II was 0.81 [95% CI (0.76 to 0.85), P<0.001], for the EuroSCORE was 0.81 [95% CI (0.77 to 0.86), P<0.001] and for InsCor was 0.79 [95% CI (0.74-0.83), P<0.001] showing up properly for all. Conclusion: The EuroSCORE II became more complex and resemblance to the international literature poorly calibrated to predict mortality in patients undergoing coronary artery bypass grafts or valve surgery at our institution. These data emphasize the importance of the local model.poropenAccessRisk FactorsCardiovascular Surgical ProceduresCoronary Artery BypassMyocardial RevascularizationCoronary DiseaseHeart Valve Diseasesbypass graft-surgerycardiac-surgeryrisk stratificationprognostic modelheart instituteoutcomesvalidationmortalitycohortvalvearticleCopyright SOC BRASIL CIRURGIA CARDIOVASC10.5935/1678-9741.20140004Cardiac & Cardiovascular SystemsSurgery1678-9741