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  • Title: [Usefulness of reticulocyte hemoglobin equivalent for the safety of pre-operative autologous blood donation].
    Author: Shibayama M, Takami A, Kimura M, Takamichi S, Sakai Y, Wada T.
    Journal: Rinsho Byori; 2011 Jun; 59(6):565-70. PubMed ID: 21815478.
    Abstract:
    Pre-operative autologous blood donation (PABD) provides safe blood for patients at the expense of the risk of iron deficiency anemia that may compromise the patients. The reticulocyte hemoglobin equivalent (RET-He) is an indirect measure of the functional iron available for the erythropoiesis over the previous 2-3 days. The aim of this study was to evaluate the clinical usefulness of RET-He quickly measured by the automated hematology analyzer Sysmex XE-2100 in patients undergoing PABD at our hospital. Receiver-operating characteristic curve analysis revealed that RET-He was reliable in the diagnosis of iron deficiency anemia. Two of 14 patients in the absence of post-PABD iron replacement developed marked anemia with low RET-He levels after PABD, suggesting that this anemia was due to iron deficiency. Of 26 patients receiving post-PABD iron replacement, 8 who had already showed low RET-He levels at PABD developed statistically significant reduction in hemoglobin levels after PABD despite adequate iron replacement, indicating that the 8 patients had iron deficiency prior to PABD. These findings suggest that automated measurement of RET-He may contribute to improve the safety of PABD.
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