Patient selection: adult living donor liver transplant
Parameters:
(1) preoperative hematocrit in percent
(2) postoperative hematocrit in percent
(3) estimated blood volume in mL based on body weight and gender (assumed to be constant)
(4) number of units of leukocyte depleted RBCs transfused (assumed volume 213 mL with 70% hematocrit)
(5) volume of Cell Save blood reinfused in mL (assumed hematocrit 55%)
where:
• Cell Saver blood is not really lost since it is recovered.
• Ascites contributes to body weight but not blood volume.
estimated blood volume for males: 75 mL per kg
estimated blood volume for females: 65 mL per kg
lost volume of red blood cells in mL =
= ((estimated blood volume in mL) * ((preoperative hematocrit) – (postoperative hematocrit))) + (volume of transfused donor blood in mL) + (volume of transfused Cell Saver blood in mL)
A volume of red blood cells > 1,000 mL was defined as high.
