It has three level of EuroSCORE: EuroSCORE 0 - 2 score: low risk EuroSCORE 2 - 5 score: moderate risk EuroSCORE > 5 score: high risk - The association betweenNT-proBNP level with Vasoactive Inotropic Score (VIS) after surgery: IS = dopamin dosage (µg / kg / min) + dobutamin dosage (µg / kg / min) + 100 x epinephrin dosage (µg/kg/min).