The volume of blood loss in the operating room and over the first 24 postoperative hours was not significantly different between the groups of patients:
ALD, 2.3+/-1.8mL/kg and 27+/-19mL/kg;
ASD, 2.4+/-2.0mL/kg and 35+/-28mL/kg;
and P, 5.9+/-10.2 mL/kg and 44+/-39mL/kg;
(p=0.15 and p=0.26, respectively).
Over the first 24 postoperative hours, fewer patients in the ALD and ASD groups received packed red blood cells than P patients (ALD 53%, ASD 89% and P 95%, p=0.001). ALD (median 1, range: 0 - 13) and ASD (median 2, range: 0 - 12) patients had significantly fewer exposures to banked blood component units than P patients (median 6, range: 0 - 11; p=0.001).