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  • Title: Perisurgical use of epoetin alfa in orthopedic surgery patients.
    Author: Adamson J.
    Journal: Semin Hematol; 1996 Apr; 33(2 Suppl 2):55-8; discussion 59. PubMed ID: 8723584.
    Abstract:
    In order to avoid exposure to allogeneic blood, perisurgical administration of epoetin alfa has been proposed as an alternative to autologous blood (AB) predonation in patients who are unable or unwilling to donate AB prior to elective surgery. The efficacy of perisurgical epoetin alfa to reduce allogeneic blood exposure was investigated in a randomized, double-blind, placebo-controlled study in 200 patients unable to participate in an AB predonation program who were scheduled for orthopedic surgery with expected blood loss > or = 2 units. Epoetin alfa (100 IU/kg or 300 IU/kg) was administered daily by subcutaneous (s.c.) injection, commencing 10 days preoperatively and continuing until day 4 postoperatively (15 doses in total). All patients received oral iron supplementation. Patients treated with epoetin alfa required significantly fewer (P < .001) allogeneic transfusion compared with placebo, and this effect of epoetin alfa was particularly evident in the subgroup of patients with baseline hemoglobin (Hb) levels of more than 10 to < or = 13 g/dL. In terms of the reduction in allogeneic blood exposure, no significant difference was evident between epoetin alfa regimens. Epoetin alfa was well tolerated. Although 15 s.c. doses of epoetin alfa 100 IU/kg appears to be the optimum dosage regimen in patients scheduled for orthopedic surgery, a presurgical simulation study in 24 healthy volunteers suggested that two s.c. doses of epoetin alfa 600 IU/kg in 10 days prior to expected surgery may be a suitable regimen for further study. However, the optimum timing of epoetin alfa administration in relation to surgery remains to be established. A finding consistent to all studies is that adequate iron supplementation (most probably in parenteral form) is necessary to optimize the erythropoietic response to epoetin alfa in the surgical setting.
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