Efficacy of Red Cell Salvage Systems in Open Acetabular Surgery
Table 5
Patients with EBL >400 ml were more likely to have an elevated BMI and received higher volumes of blood when autologous transfusion was provided. The rate of requiring a postoperative allogenic transfusion was higher when EBL >400 ml. The rate of having EBL >400 ml was higher in fractures requiring treatment with an anterior surgical approach. The rate of receiving an autologous transfusion was higher when EBL >400 ml. IL = Ilioinguinal, KL = Kocher-Langenbeck, ASA = American Society of Anesthesiology Score, BMI = body mass index, EBL = estimated blood loss, EF–elementary fracture pattern, AF = associated fracture pattern.
EBL <400
EBL >400
value
Average age
45
45
0.93
Average BMI
27.6
33.2
0.02
ASA <2—ASA >2
20/50–30/50
8/13–5/13
0.16
Preoperative hemoglobin (mg/dl)
11.0
11.2
0.73
Days to surgery
4.16
5.08
0.29
Mean volume of autologous blood transfused (ml)
125
247.5
<0.01
Mean number of preoperative allogenic blood transfusion in units
0.5
0.38
0.68
Mean number of intraoperative allogenic blood transfusion in units
0.38
0.31
0.73
Mean number of postoperative allogenic blood transfusion in units
0.24
1.23
0.18
Rate of preoperative allogenic blood transfusion
9/50
3/13
0.67
Rate of intraoperative allogenic blood transfusion
