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  • Title: Audit on the efficient use of cross-matched blood in elective total hip and total knee replacement.
    Author: Rogers BA, Johnstone DJ.
    Journal: Ann R Coll Surg Engl; 2006 Mar; 88(2):199-201. PubMed ID: 16551419.
    Abstract:
    INTRODUCTION: This prospective audit studies the use of cross-matched blood in 301 patients over a 1-year period undergoing total knee (TKR) and total hip replacement (THR) surgery in an orthopaedic unit. PATIENTS AND METHODS: Analysis over the first 6 months revealed a high level of unnecessary cross-matched blood. The following interventions were introduced: (i) to cease routine cross-matching for THR; (ii) all patients to have a check full blood count on day 2 after surgery; and (iii) Hb < 8 g/dl to be considered as the trigger for transfusion in patients over 65 years and free from significant co-morbidity. These changes are in accordance with published national guidelines [Anon. Guidelines for the clinical use of red cell transfusions. Br J Haematol 2001; 113: 24-31]. RESULTS: In the next 6 months, the number of units cross-matched but not transfused fell by 96% for THR, and the cross-match transfusion (C:T) ratio reduced from 3.21 to 1.62. Reductions were also observed for the TKR cohort. These results provide evidence of a substantial risk and cost benefit in the use of this limited resource. A telephone survey of 44 hospitals revealed that 20 hospitals routinely cross-matched blood for THR and 11 do so for TKR. CONCLUSIONS: Changes can be made to the Maximum Surgical Blood Ordering Schedules (MSBOS) in other orthopaedic units according to national guidelines.
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