The three clinically applicable forms of autotransfusion are preoperative blood collection and storage, hemodilution and autotransfusion, and intraoperative blood salvage.
Preoperative blood collection and storage can be used in patients with a normal hematocrit reading, who are free of substantial coronary or cerebrovascular occlusive disease. Hemodilution and autotransfusion is useful in patients undergoing elective surgery where blood loss greater than 500 ml is predicted. Intraoperative blood salvage is recommended in operations where blood loss exceeds 500 ml; it is especially useful in intra-abdominal vascular operations and in the surgery of trauma.
Couch NP, Laks H, Pilon RN. Autotransfusion in Three Variations. Arch Surg. 1974;108(1):121-122. doi:10.1001/archsurg.1974.01350250107028