16例冷凝集素造成的血型不合分析

目的 探讨冷凝集素对血型造成的影响及相应的处理效果.方法 采用37℃水浴、吸收放散试验及2-巯基乙醇等方法 消除冷凝集素的影响,并对处理后的红细胞和血清进行正反定型、交叉配血、直接抗人球蛋白实验及间接抗人球蛋白实验等实验.结果 16例患者标本在处理前均呈明显的正反定型不符,交叉配血困难,经鉴定均由冷凝集素造成.经过相应...

Blood type incompatibility caused by cold agglutination: A study of 16 cases

Objective To investigate the effect of cold agglutination on blood group typing. Methods 37℃ water bath, absorption elution test and 2-mercaptoethanol method were used to eliminate the influence of cold agglutination. Forward and reverse blood group typing, cross matching, DAT and IAT experiments were then performed on red blood cells and serum after treatment. Results Before treatment, obvious discrepancy in forward/reverse typing and nontypable cross matching in 16 blood samples were noticed due to cold agglutination. After corresponding treatments, all samples were consistent or negative in forward/reverse typing, cross matching and antibody screening. No adverse reactions to cross matching blood transfusion occurred in patients, and the increase of hemoglobin was in line with the effective standard of transfusion. Conclusion 37℃ water bath, absorption elution test and 2-mercaptoethanol method can be used to eliminate the interference caused by cold agglutination to obtain correct typing results. The strong reactivity caused by cold agglutination in AIHA patients were different from other cases, which deserved our attention.