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  • Title: A retrospective audit of blood loss in total hip joint replacement surgery at Middlemore Hospital.
    Author: Gillham M, Mark A.
    Journal: N Z Med J; 1997 Aug 08; 110(1049):294-7. PubMed ID: 9293284.
    Abstract:
    AIMS: To quantify the level of inappropriate red cell transfusion in primary and complex hip replacement surgery. METHODS: Data extraction was by retrospective review of patients records. Calculation of total red cell volume loss was by use of pre and postoperative (day 7) haematocrit levels, patient weight and number of units transfused. Transfusion was accepted as justified only if instituted for a 30% red cell volume loss or loss sufficient to drop the haematocrit below 0.28. RESULTS: Of 104 patients having primary hip joint replacement, 58 were transfused with a total of 157 units of red cells; 37 (24%) of these units were given inappropriately. Of 38 patients having complex hip replacement operations, 32 were transfused with a total of 139 units of red cells; 12 (9%) of these were given inappropriately. CONCLUSIONS: Inappropriate transfusion occurs in hip replacement surgery. A concurrent audit of red cell usage is required to better define the magnitude of the problem. Two unit transfusion is commonly given when one unit would have been sufficient.
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