Effect of MAP on preservation quality of deglycerolized red blood cells

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Effect of MAP on preservation quality of deglycerolized red blood cells

Journal Title: Chinese Journal of Blood Transfusion - Year 2024, Vol 37, Issue 6

Abstract

Objective To observe the effect of deglycerolized red blood cells suspended in MAP on preservation and explore the most effective preservation method. Methods Concentrated red blood cells were prepared by centrifuging 400 mL of whole blood on the third day after collection. 40% compound glycerol solution was added using the ACP 215 automatic blood cell analyzer, and the resulting mixture was stored in an ultra-low temperature refrigerator at -65℃ for 30 days. After thawing and washing, it was equally separated into two bags. The control group received 0.9% sodium chloride solution, while the experimental group received MAP. Both groups were stored at 2-6℃. Hematological parameters, hemolysis indexes and cell metabolism indexes were measured on day 0, 1, 3, 5, 7 and 14 after storage. The quality changes of both groups were observed during the 14-day storage period. Results The quality of red blood cells in both groups was assessed through a panel of quality tests, including volume, hemoglobin content, free hemoglobin content, white blood cell residue, glycerin residue and sterility. These results met the Quality Requirements outlined in the "Quality Requirements of Whole Blood and Component Blood" (GB18469-2012), Hematocrit, red blood cell count, Hb recovery rate after washing and MCV meet the detection limit outlined in the "Expert Consensus on Quality Evaluation Indicators for Frozen Red Blood Cells", and the residual amount of platelets exceeds the detection limit(≤1%). There were no significant differences in RBC, Hct, MCV and hemoglobin between the two groups during the 14 day storage period. The level of free hemoglobin, hemolysis rate and K+ value increased in both groups over time. Significant differences in free hemoglobin were found on day 3, 5, 7 and 14 between the two groups(P<0.05). Hemolysis rate was significantly different on days 3, 5, 7 and 14, while K+ value was significantly different only on day 14(P<0.05). On day 14, the osmotic fragility of red blood cells was higher in the control group than in the experimental group(P<0.05); The ATP and pH values of both groups decreased as storage time increased, and significant differences in ATP and pH value were found on day 3, 5, 7 and on day 1, 3, 5, 7 and 14, respectively(P<0.05). Conclusion Deglycerolized red blood cells suspended in MAP additive solution can extend the storage period of blood to 7 days. This study provides a reference for the formulation of relevant standards.

Authors and Affiliations

Jianhao YANG, Xiaoxuan NIE, Lili ZHANG, Shunwei ZHANG, Yi DU, Yingjie QIU, Qing MA, Bei XU

Keywords

The clinical study of thromboelas-tography combined with coagulation four items and platelet count to guide platelet transfusion in critically ill patients

Objective To explore the clinical value of thromboelas-tography, coagulation four items and platelet count in guiding platelet transfusion in critically ill patients. Methods A total of 188 critically ill patients in Int...

EP ID EP742788
DOI 10.13303/j.cjbt.issn.1004-549x.2024.06.013
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