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  • Title: [Results of autologous blood donation in orthopedic hip and knee joint replacement].
    Author: Adams HA, Wittschier G, Fuhr R, Baltes-Götz B.
    Journal: Anasthesiol Intensivmed Notfallmed Schmerzther; 1997 May; 32(5):283-90. PubMed ID: 9264615.
    Abstract:
    OBJECTIVE: This study was undertaken to investigate the efficiency of autologous blood donation (ABD) with regard to saving of homologous transfusion, to determine the reasons for exclusion from donations and the rate of incidents during the procedure, and to investigate the quality of autologous fresh frozen plasma (AFFP). METHODS: During an observation period of 4.5 years, all patients scheduled for elective orthopaedic hip and knee replacement were included. A period of 4 years was evaluated retrospectively, and the last half year was evaluated prospectively. RESULTS: Among a collective of 710 patients, 55 (8%) non-donors and 655 (92%) donors with a total number of 1592 ABD were found. Mean age of non-donors with hip surgery was significantly higher than that of donors (72 vs. 64 years), the same was observed in patients with knee surgery (71 vs. 68 years). In the hip surgery group, 11 of 338 patients were non-donors (3%), compared with 44 of 372 patients with knee surgery (12%). In the prospective part of the study, 7% of 121 patients were non-donors. Reasons for exclusion from donation were 5 times of medical and 4 times of organisational nature. In donors for hip surgery, a mean of 3.0 units was collected, compared with 1.9 units in donors for knee surgery. On the day before operation, mean haemoglobin concentrations were similar in donors and non-donors. During ABD, 11 incidents were observed, representing 0.69% of all ABD, 83.5% of 327 donors with hip surgery left the hospital without any transfusion of homologous blood, 16.5 of donors with hip surgery received one or more homologous transfusions, compared with 100% of non-donors (p < 0.001). In knee surgery, 93.3% of donors and 63.6% of non-donors required no homologous blood, whereas 6.7% of donors and 36.4% of non-donors received one or more homologous transfusions (p < 0.001). 529 of 2850 autologous blood units (19%) were not transfused, and 19 of these units were rejected due to technical or organisational problems. In 97 patients with 240 ABD and 240 AFFP, prothrombine time, fibrinogen concentration and AT III in defrosted AFFP exceeded 70% of the values determined before ABD. CONCLUSION: ABD is a safe procedure in almost all, even elderly, patients scheduled for elective orthopaedic hip or knee replacement in both types of operations, ABD reduces the risk of homologous transfusion significantly. A number of 3-4 units is necessary for total hip replacement, whereas 2 units are sufficient for partial or total knee replacement. Haemostatic quality of AFFP meets the requirements of fresh frozen homologous plasma.
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