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目的 对冰冻红细胞洗涤液进行优化改进,探索应用0.9%NaCl注射液替代中间浓度洗涤液(2%NaCl)的去甘油化洗涤效果.方法 取源于400 ml(2 U)全血的健康献血者悬浮红细胞,-80℃冰冻保存,用血细胞处理仪对解冻红细胞进行去甘油化处理,在原有程序(程序1)基础上,通过洗涤液(3种)、洗液量和洗涤步骤等的优化改进,形成新的洗涤程序(程序2)洗涤冰冻红细胞,并对两种程序洗涤后的冰冻红细胞质量进行评价.结果 两种洗涤程序处理后冰冻红细胞质量各项指标:血红蛋白含量(g)分别为42.18 ±3.35和44.98 ±1.68,游离血红蛋白含量(g/L)分别为0.53 ±0.06和0.45 ±0.05,白细胞残留量(×107)分别为1.92 ±1.04和1.12 ±1.12,晶体渗透压(mOsm)分别为327.0 ±9.06和331.8 ±10.62,无菌实验普通细菌和真菌检测均为阴性.红细胞体外溶血率(%)分别为12.02 ±5.78和14.30 ±5.67,红细胞变形性(%)分别为21.42 ±1.45和21.32 ±0.84,红细胞回收率(%)分别为77.18 ±5.58和79.63 ±2.06,洗涤时间(min)分别为79.60 ±0.55和78.80 ±1.30.经比较,两种洗涤程序处理后冰冻红细胞质量各项指标之间差异均无统计学意义(P>0.05).结论 两种程序洗涤的冰冻红细胞质量均达到国家冰冻解冻去甘油红细胞质量控制要求.“,”Objective To improve the buffer for washing frozen red blood cells(RBCs)and explore the feasibility of replacing the middle buffer of 2% NaCl with 0.9% NaCl solution in the protocol of deglycerolization and the effect was evaluated.Methods Two units of RBCs separated from whole blood of healthy donors were frozen at -80℃.The thawed frozen RBCs were treated with a washing machine.On the basis of the old protocol(protocol 1),the middle buffer of 2%NaCl was replaced,and the usage of washing buffer and the washing steps were adjusted to create a new protocol(protocol 2).The quality of RBCs washed by the two protocols was evaluated.Results According to the results of the detection of RBCs treated by protocol 1 and 2: the hemoglobin contents(g)were 42.18 ±3.35 and 44.98 ±1.68,respectively,free hemoglobin contents(g/L)were 0.53 ±0.06 and 0.45 ±0.05 respectively, the residual amount of white blood cells (×107)was 1.92 ±1.04 and 1.12 ±1.12,and the osmolarities(mOsm)were 327.0 ±9.06 and 331.8 ±10.62 respectively. Sterile experiments were negative for both bacteria and fungi.The hemolysis rates(%)were 12.02 ±5.78 and 14.30 ± 5.67 respectively.The deforming abilities(%)were 21.42 ±1.45 and 21.32 ±0.84 respectively.The RBC recoveries (%)were 77.18 ±5.58 and 79.63 ±2.06 respectively.The processing time(min)was 79.60 ±0.55 and 78.80 ±1.30 respectively.There was no significant difference in the quality of frozen RBCs washed by the old protocol(protocol 1)and the new protocol(protocol 2)(P>0.05).Conclusion The quality of frozen RBCs washed by the two protocols meet national standards.