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  • Title: Changes in red blood cell transfusion practice during the past two decades: a retrospective analysis, with the Mayo database, of adult patients undergoing major spine surgery.
    Author: Wass CT, Long TR, Faust RJ, Yaszemski MJ, Joyner MJ.
    Journal: Transfusion; 2007 Jun; 47(6):1022-7. PubMed ID: 17524092.
    Abstract:
    BACKGROUND: Others have reported significant changes in red blood cell (RBC) transfusion practice during the past two decades during knee, hip, prostate, and carotid surgery. Similar data for patients undergoing major spine surgery, however, are not available. STUDY DESIGN AND METHODS: After institutional review board approval, adult patients undergoing elective major spine surgery were stratified into one of two transfusion-related groups: 1) 1980 to 1985 (i.e., before human immunodeficiency virus screening, early practice group; n = 699) or 2) 1995 to 2000 (i.e., late practice group; n = 610). RESULTS: Patients in the late practice group were older, had greater numbers of preoperative coexisting diseases (e.g., hypertension, cardiac dysrhythmias, coronary artery disease, prior myocardial infarction, diabetes mellitus, renal disease, cerebrovascular disease, and asthma), and were exposed to longer operations (p < 0.01 for each variable). Over time, allogeneic RBC administration significantly decreased, whereas autologous and intraoperative autotransfusion significantly increased. Compared to the early practice group, all perioperative Hb concentrations were significantly lower than the late practice group, yet no significant difference in major morbidity or mortality was observed between groups. CONCLUSION: In this retrospective analysis, significantly lower acceptable perioperative Hb concentrations were observed in older patients having substantially worse baseline comorbidity and exposed to longer major spine operations, without significant change in the incidence of perioperative morbidity or mortality.
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