吸收IgG抗-AB抗体后IgG抗-A/抗-B抗体效价预测ABO-胎儿新生儿溶血病的价值  

The Value of IgG Anti-A/Anti-B Antibody Titersafter Absorption of IgG Anti-AB Antibodiesin Predicting ABO Fetal Neonatal Hemolytic Disease

作　　者：程晨 张怡 陈怡静 骆群 卓海龙 CHENG Chen;ZHANG Yi;CHEN Yi-Jing;LUO Qun;ZHUO Hai-Long(Department of Blood Transfusion,The Fifth Medical Center of PLA General Hospital,Beijing 100071,China)

机构地区：[1]解放军总医院第五医学中心输血医学科,北京100071

出　　处：《中国实验血液学杂志》2024年第6期1903-1908,共6页Journal of Experimental Hematology

基　　金：北京自然科学基金(Z181100001718213)。

摘　　要：目的:分析吸收IgG抗-AB抗体后O型孕妇血浆中IgG抗-A/抗-B抗体效价对ABO-胎儿新生儿溶血病(ABO-HDFN)发生的预判价值。方法:选取2020年2月-2020年9月北京市血液中心母亲血型为O型的新生儿高胆红素血症样本235例,采用微柱凝胶卡检测母亲血浆IgG抗-AB抗体吸收前后IgG抗-A/抗-B抗体效价,并统计ABO-HDFN的发生情况。分析比较IgG抗-AB抗体吸收前后IgG抗-A/B抗体效价变化及不同效价下ABO-HDFN的发生率,并采用受试者工作特征(ROC)曲线分析吸收IgG抗-AB抗体后O型孕妇血浆中IgG抗-A/抗-B抗体效价水平对ABO-HDFN的诊断效能。结果:本研究选取的235例母亲血型为O型的新生儿高胆红素血症样本中,新生儿血型为A型的有127例,其中38例确诊为ABO-HDFN;血型为B型的有108例,其中31例确诊为ABO-HDFN。235例样本吸收IgG抗-AB抗体前后,IgG抗-A/抗-B抗体效价差异显著(P<0.05)。在69例ABO-HDFN确诊病例中,无论是否吸收IgG抗-AB抗体,ABO-HDFN的发生率都会随着IgG抗-A/抗-B抗体效价的升高而升高,但未吸收IgG抗-AB前,抗-A/抗-B抗体效价均≥1∶512,而吸收后抗-A/抗-B抗体效价则出现明显降低,整体下降了3个滴度,均≤1∶512。ROC曲线分析显示,吸收IgG抗-AB抗体前后IgG抗-A/抗-B抗体效价均可作为诊断ABO-HDFN的效能指标;但吸收IgG抗-AB抗体前后IgG抗-A/抗-B抗体效价诊断ABO-HDFN的效能存在一定差异(P<0.05),吸收后的AUC值均大于吸收前,表明吸收IgG抗-AB抗体后IgG抗-A/抗-B抗体效价诊断ABO-HD-FN的效能优于吸收前(P<0.05)。结论:O型产妇血浆吸收IgG抗-AB抗体后测得的IgG抗-A/抗-B抗体效价越高,ABO-HDFN发生率越高;且吸收IgG抗-AB抗体后IgG抗-A/抗-B抗体效价诊断ABO-HDFN效能高于吸收前的诊断效能。Objective:To analyze the diagnostic value of IgG anti-A/anti-B antibody titer in the serum of type O pregnant women after absorption of IgG anti-AB antibody for ABO hemolytic disease of fetus and newborn(ABO-HDFN).Methods:From February 2020 to September 2020,235 samples of neonatal hemolytic disease whose mother′s blood type O from Beijing Blood Center were selected.The titer of IgG anti-A/anti-B antibody in mother′s serum before and after absorption of IgG anti-AB antibody was detected by microcolumn gel card,and the incidence of ABO-HDFN was statistically analyzed.The titer level of IgG anti-A/anti-B antibody and the incidence of ABO-HDFN were compared before and after the absorption of IgG anti-AB antibody,and the diagnostic efficacy of the titer level of IgG anti-A/anti-B antibody in the serum of type O pregnant women after the absorption of IgG anti-A and B antibodies on the incidence of ABO-HDFN was analyzed using the receiver′s work characteristic(ROC)curve.Results:Of the 235 neonatal hyperbilirubinemia samples with maternal blood type O,127 were blood type A,38 of which were diagnosed as ABO-HDFN;108 were blood type B,of which 31 were diagnosed as ABO-HDFN.Before and after absorption of IgG anti-AB antibody,there was a significant difference in the titer of IgG anti-A/anti-B antibody(P<0.05).Among the 69 confirmed cases,the incidence of ABO-HDFN increased with the increase of IgG anti-A/anti-B antibody with or without the IgG anti-AB antibody,but the anti-A/anti-B antibody titer≥1∶512 before the absorption of IgG anti-AB antibody,while the anti-A/anti-B antibody titer decreased significantly,decreasing by three titers,all≤1∶512.The ROC curve shows that the titers of IgG anti-A/anti-B antibodies before and after absorption of IgG anti-AB antibodies can be used as the efficacy indicators for the diagnosis of ABO-HDFN.However,there was a significant difference in the potency of IgG anti-A/anti-B antibody titer for the diagnosis of ABO-HDFN before and after the absorption of IgG anti-AB antibody

关 键 词：ABO-胎儿新生儿溶血病 新生儿高胆红素血症 IgG抗-AB抗体 IgG抗-A/抗-B抗体效价 

分 类 号：R446.6[医药卫生—诊断学] R722.18[医药卫生—临床医学]