Study On The Efficiency Of The European System For Cardiac Operative Risk Evaluation (EuroSCORE) In Predicting In-hospital Mortality For The Patients With Percutaneous Coronary Intervention

Background:European System for Cardiac Operative Risk Evaluation (EuroSCORE) is a simple and objected method which has been used widely in evaluating risk factors for cardiac surgery patients in Europe. It can also been used to assessment the mortality in patients with percutaneous coronary intervention (PCI). There is no similar study.Objective:1. We want to investigate the risk factors associated with in-hospital mortality and percutaneous coronary intervention.2. We want to investigate the efficiency of European System for Cardiac Operative Risk Evaluation (EuroSCORE) in predicting in-hospital mortality for patients after percutaneous coronary intervention (PCI).Methods:Retrospective analysis was conducted on the patients who had undergone PCI in our hospital since year 2005 to 2007. Multivariable logistic regression analysis was used to choose the risk factors of the in-hospital mortality of PCI. We used both cumulative EuroSCORE and Logistic EuroSCORE to predict the in-hospital mortality and to analyze the correlation between the predicted mortality and the actual mortality.Results:Multivariable logistic regression analysis showed that female (P=0.013), renal disfunction (P=0.011), cardiogenic shock (P=0.003), PCI defeat (P< 0.01) and the score of EuroSCORE (P< 0.01) were the independent in-hospital mortality predictors of the in-hospital mortality.According to the cumulative EuroSCORE, we divided the patients into three groups, the cumulative EuroSCORE 0-2 were divided into low-risk group,3-5, were divided into mid-risk group,> 6, high-risk group. The actual in-hospital mortality rates were 0%,0.47% and 6.09%. The EuroSCORE model demonstrated an overall relation between the EuroSCORE ranking and the incidence of in-hospital mortality (P< 0.01). The predicted mortality calculated from the Logistic EuroSCORE was higher than the actual rate.Conclusion:The EuroSCORE risk model and the in-hospital mortality were significantly correlated, indicating that the model was a promising method for predicting the in-hospital mortality of PCI patients.