Validation of EuroSCORE for Coronary Artery Bypass Grafting at Siriraj Hospital
Chananya Karunasumetta MD*, Pansak Laksanabunsong MD*, Worawong Slisatkorn MD*, Wanchai Wongkornrat MD*, Pranya Sakiyalak MD*, Punnarerk Thongcharoen MD*, Thaworn Subtaweesin MD*, Teeravit Phanchaipetch MD*, Somchai Sriyoschati MD*
Affiliation : * Division of Cardiothoracic Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
Objective : To access the performance of the EuroSCORE when applied to CABG patients at Siriraj hospital.
Material and Method: One thousand five hundred forty nine patients diagnosed with coronary artery disease (CAD) who
underwent isolated CABG between January 2007 and December 2009 was prospectively studied.
Results : The patients included 1,102 men and 447 women and had a mean age of 67 years old. The mean additive score in
expired and survived groups were 9.65 5.14 and 3.87 3.06. In logistic, score were 25.43 26.31 and 4.88 7.88
respectively (p < 0.001). The best cut-off value of EuroSCORE for prediction of a death rate was 6 for additive score and
10 for logistic score. Area under the curve was 0.831 for the additive score and 0.823 for the logistic score. The observed
overall mortality rate was 2.0% while the predict mortality was 5.27%. The difference between observed and predicted
deaths was significant with additive score and logistic score (p < 0.001).
Conclusion : Our results suggest that EuroSCORE is not valid for CABG in Thai patient due to over prediction.
Keywords : Cardiac surgery, CABG, Mortality, Logistic model, Additive model, EuroSCORE
