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  • Title: Transfusion guidelines for cardiovascular surgery: lessons learned from operations in Jehovah's Witnesses.
    Author: Spence RK, Alexander JB, DelRossi AJ, Cernaianu AD, Cilley J, Pello MJ, Atabek U, Camishion RC, Vertrees RA.
    Journal: J Vasc Surg; 1992 Dec; 16(6):825-9; discussion 829-31. PubMed ID: 1460708.
    Abstract:
    Patients undergoing cardiovascular surgery are among the top users of homologous blood transfusion (HBT). Awareness of the risks of disease transmission and immune system modulation from HBT has prompted us to find alternatives such as autologous predonation (APD) and intraoperative autotransfusion (IAT). However, these latter options are not appropriate for all patients. We reviewed our experience with 59 Jehovah's Witness patients who underwent 63 elective cardiovascular procedures without either HBT or APD to determine the safety of operation without these modalities and to develop revised maximum surgical blood-ordering schedule guidelines for cardiovascular surgery. Estimated blood loss averaged 870 ml, but one third to one half of losses were replaced by IAT. IAT was not needed in lower extremity bypass operations in which the estimated blood loss was less than 150 ml. Three of 59 patients died (5.1%), but only one died of operative bleeding complications. We conclude that (1) elective cardiovascular operations can be done safely without the use of either HBT or APD, (2) HBT is not necessary in leg bypass procedures, and (3) maximum surgical blood-ordering schedule guidelines for HBT in major cardiovascular operations can be reduced to near zero by the use of intraoperative autotransfusion and acceptance of a postoperative hemoglobin nadir of 7.0 gm/dl.
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