Perioperative autotransfusion: haemodilution and red cell salvaging.

We have treated 129 cases of massive haemorrhage during surgery using our combined autotransfusion technique (HAT and SAT). No adverse reactions or complications have been noted and additional homologous blood transfusion has not been required. In addition, circulatory dynamics have been satisfactorily maintained. Although the red cell recycle rate has been maintained at over 85%, the salvaging rate of blood in the operating field has not yet reached 80%. Approximately 30% of the surgical haemorrhage appears to be discarded with surgical sponges or flow out of the operating field. Clearly the cooperation of surgeons is an important factor for success with SAT. Success in autotransfusion may be accomplished by combinations of autotransfusion techniques.