Erythropoietin (EPO) to Protect Renal Function After Cardiac Surgery

The active drug will be given only once after the anesthesia induction and before the start of surgery. The active drug will be diluted to 2000U/kg and given as a single dose of 400U/kg. The dose will be prepared prior to surgery by a independent nurse.

Placebo arm will receive NaCl 9mg/ml with a dose of 0.2 ml/kg. The placebo dose will be prepared prior to the surgery by a independent nurse. The calculated volume will match the volume of the active durg.