title: Intraoperative autotransfusion.
abstract: The components of an autotransfusion system are supposed to play a major role in the induction of observed blood cell alterations. An animal experimentation was undertaken with a one variable analysis of the influence of each component. The estimated blood volume of dogs was recirculated about 24 times. The effects on the blood of short repeated peritoneal contacts, of the interposition of a polyfilter, of air aspiration, in variable quantities together with blood, and of preventing air aspiration were evaluated. Short peritoneum blood contact did not cause hematological damage and did not induce important hemolysis. Polyfilters did not markedly affect erythrocytes and platelets. Aspiration of air was found to be the most damaging factor for red cells and platelets. Its prevention by an electronical system provided an optimal preservation of red cells and platelets.
mesh_terms: D000388:Air; D000818:Animals; D001772:Blood Cell Count; D001773:Blood Cells / Q000473:pathology*; D001804:Blood Transfusion, Autologous; D004285:Dogs; D007432:Intraoperative Period; D008851:Micropore Filters; D010537:Peritoneum