Patient EuroSCORE 1 2 3 4 5 6 7 8 9 10 11 12 Patient related risk factors                             Age, > 65 years   x   x   x x   x x x x   Female (%)       x   x x     x       Chronic pulmonary disease       x   x     x         Extracardiac arteriopathy                       x   Neurological dysfunction           x         x     Previous cardiac surgery x x x x x x x x x x x x   Serum creatinine > 200 μmol/l             x     x   x   Active endocarditis                           Critical preoperative state x                       Cardiac-related factors                             Unstable angina                           LV disfunction: moderate or LVEF 30-50% poor or LVEF < 30%     x   x                     x     Recent myocardial infarction (>90 days)                           Pulmonary Hypertension x x   x   x x x x x   x Operation-related risk factors                             Emergency                           Other than isolated CABG                           Surgery on thoracic aorta                           Postinfarct septal rupture                         Score 11 8 6 20 6 25 24 4 6 7 7 10

Table 1: Application of the European scoring system for cardiac operative risk evaluation (EuroSCORE) to our population.