 During CBP and before aortic unclamping, PRC not to be given if hemoglobin is 7gdl. For values less than 5.5gdl, one unit of PRC is transfused and the patient is reevaluated. After weaning from CPB and retransfusion of the salvaged shed blood, transfusion when hemoglobin is 8gdl. During ICU stay, transfusion when hemoglobin is 8gdl. Between 8-10gdl evaluation for transfusion in a multimodal manner. 