The predictive values of EuroSCORE of early mortality in coronary artery bypass grafting patients / 中华外科杂志

<p><b>OBJECTIVE</b>To verify the predictive value of EuroSCORE of early mortality in coronary artery bypass grafting (CABG) patients.</p><p><b>METHOD</b>From January 2005 to March 2007, 310 consecutive patients were operated with CABG. Detailed data for the EuroSCORE risk factor were collected and all patients were scored according to the EuroSCORE additive model, retrospectively or prospectively. Expected or predicted mortality was calculated for individual patients using the EuroSCORE algorithms, arranged sequentially in order of predicted score. The population was divided into three clinically relevant risk categories according to the range of predicted mortality rate. Expected mortality was compared to observed or actual mortality for each risk category. Mortality was defined as death from any cause within 30 days of operation or within the same hospital admission.</p><p><b>RESULTS</b>Preoperative overall patients: low-risk group was 25.2% (78/310), middle-risk group was 48.4% (150/310), high-risk group was 26.4% (82/310). In the EuroSCORE model, predicted mortality was 1.4% for low-risk group, 2.7% for middle-risk group, 7.4% for high-risk group, and 3.6% for overall patients. Actual mortality was 0, 1.3% and 3.7% respectively, overall early mortality was 1.6%. Area under the ROC curve was 0.78.</p><p><b>CONCLUSION</b>The EuroSCORE yield good predictive value for hospital mortality of patients undergoing CABG, especially in off-pump CABG.</p>

Assessment of early mortality risk factors undergoing coronary artery bypass graft surgery / 中华外科杂志

<p><b>OBJECTIVE</b>To analyze early mortality risk factors and clinical characteristics in our patients undergoing coronary artery bypass graft (CABG) surgery.</p><p><b>METHODS</b>Clinical data of 310 consecutive patients undergoing CABG from January 2005 to March 2007 were collected. Twenty-two risk factors were evaluated by univariate and multivariate Logistic stepwise regression analysis.</p><p><b>RESULTS</b>Univariate statistical analysis revealed that factors significantly correlated with early death were 12 variables including age, diabetes, neurological dysfunction, old myocardial infarction, acute myocardial infarction, ejection function, left main artery stenosis, emergency procedure, cardiopulmonary bypass time, aortic cross-calming time, and mechanical ventilation time. Logistic stepwise regression analysis showed that emergency procedure, ejection function, age, cardiopulmonary bypass time, and mechanical ventilation time were independent risk factor of early mortality after procedure.</p><p><b>CONCLUSION</b>Emergency procedure, ejection function, age, cardiopulmonary bypass time, and mechanical ventilation time are independent risk factors of early mortality after CABG procedure.</p>