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中华妇幼临床医学杂志(电子版) ›› 2022, Vol. 18 ›› Issue (06) : 677 -684. doi: 10.3877/cma.j.issn.1673-5250.2022.06.009

论著

母亲免疫球蛋白G不规则抗体效价及其效价积分对母婴Rh血型不合新生儿溶血病患儿换血治疗的预测分析
郝萧1, 刘兴莉2, 夏小叶1, 刁雪芹1, 姚美雪3,()   
  1. 1济南市血液供保中心,济南 250001
    2山东大学齐鲁儿童医院输血科,济南 250001
    3徐州医科大学公共卫生学院流行病学教研室,徐州 221004
  • 收稿日期:2022-07-20 修回日期:2022-09-14 出版日期:2022-12-01
  • 通信作者: 姚美雪

Predictive analysis of maternal immunoglobulin G irregular antibody titer and titer score on blood exchange transfusion in rhesus maternal-fetal blood group incompatibility hemolytic disease of newborn

Xiao Hao1, Xingli Liu2, Xiaoye Xia1, Xueqin Diao1, Meixue Yao3,()   

  1. 1Jinan Blood Supply and Insurance Center, Jinan 250001, Shandong Province, China
    2Department of Blood Transfusion, Shandong University Qilu Children′s Hospital, Jinan 250001, Shandong Province, China
    3Department of Epidemiology, School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
  • Received:2022-07-20 Revised:2022-09-14 Published:2022-12-01
  • Corresponding author: Meixue Yao
  • Supported by:
    National Natural Science Foundation of China for Youth(81703272); Outstanding Talents Scientific Research Initiation Fund Project of Xuzhou Medical University(D2017013)
引用本文:

郝萧, 刘兴莉, 夏小叶, 刁雪芹, 姚美雪. 母亲免疫球蛋白G不规则抗体效价及其效价积分对母婴Rh血型不合新生儿溶血病患儿换血治疗的预测分析[J/OL]. 中华妇幼临床医学杂志(电子版), 2022, 18(06): 677-684.

Xiao Hao, Xingli Liu, Xiaoye Xia, Xueqin Diao, Meixue Yao. Predictive analysis of maternal immunoglobulin G irregular antibody titer and titer score on blood exchange transfusion in rhesus maternal-fetal blood group incompatibility hemolytic disease of newborn[J/OL]. Chinese Journal of Obstetrics & Gynecology and Pediatrics(Electronic Edition), 2022, 18(06): 677-684.

目的

探讨母亲免疫球蛋白(Ig)G不规则抗体效价及其效价积分对母婴Rh血型不合新生儿溶血病(Rh-HDN)患儿换血治疗的预测效果。

方法

选择2019—2021年,于济南市血液供保中心血型室确诊为Rh-HDN的52例患儿为研究对象。根据其是否接受换血治疗,将其分别纳入换血组(n=28)与未换血组(n=24)。检测2组患儿红细胞计数(RBC)、血红蛋白(Hb)含量、血细胞比容(HCT)、血清总胆红素(TBIL)浓度、ABO血型与其母亲IgG不规则抗体效价及其效价积分,并采用成组t检验或χ2检验进行统计学比较。绘制2组患儿母亲IgG不规则抗体效价及其效价积分预测Rh-HDN患儿换血治疗的受试者工作特征(ROC)曲线,并计算其曲线下面积(AUC)。本研究遵循的程序符合2013年新修订的《世界医学协会赫尔辛基宣言》要求。2组患儿性别构成比等一般临床资料比较,差异均无统计学意义(P>0.05)。

结果

①换血组患儿RBC、Hb含量、HCT均显著低于未换血组患儿,而血清TBIL则显著高于未换血组患儿,并且差异均有统计学意义(t=-7.94、-7.96、-8.80、14.24,P<0.001)。②换血组患儿母亲IgG不规则抗体效价及其效价积分,均显著高于未换血组,并且差异均有统计学意义(Z=-4.91、t=8.72,P<0.001)。③对患儿母亲IgG不规则抗体效价及其效价积分,对2组Rh-HDN患儿换血治疗预测结果进行配对χ2检验比较显示,差异统计学意义(P=0.031)。患儿母亲IgG不规则抗体效价及其效价积分,对预测Rh-HDN患儿换血治疗的AUC分别0.921(95%CI:0.853~0.990,P<0.001)与0.958(95%CI:0.910~1.000,P<0.001),并且差异有统计学意义(Z=2.09,P=0.036)。根据约登指数最大原则,患儿母亲IgG不规则抗体效价及其效价积分,对预测患儿换血治疗的最佳临界值分别为1∶80、57.5分,并且预测2组患儿换血治疗的敏感度分别为71.4%与92.9%,特异度均为87.5%,阳性预测值分别为87.0%与89.7%,阴性预测值分别为72.4%与91.3%。

结论

Rh-HDN患儿母亲IgG不规则抗体效价及其效价积分,对预测患儿换血治疗,均具有一定临床价值,而且母亲IgG不规则抗体效价积分的预测效能,优于母亲IgG不规则抗体效价。

Objective

To investigate the predictive effect of maternal immunoglobulin (Ig)G irregular antibody titer and titer score on blood exchange transfusion in rhesus maternal-fetal blood group incompatibility hemolytic disease of newborn (Rh-HDN).

Methods

From 2019 to 2021, 52 newborns who were diagnosed as Rh-HDN in the Blood Group Room of Jinan Blood Supply and Insurance Center were selected as research subjects. According to whether Rh-HDN newborns received blood exchange transfusion or not, they were divided into exchange transfusion group (n=28) and non-exchange transfusion group (n=24). Their red blood cell count (RBC), level of hemoglobin (Hb), hematocrit (HCT), serum total bilirubin (TBIL) concentration, ABO blood group and maternal IgG irregular antibody titer and titer score were detected, and were statistically compared by independent-samples t test or chi-square test. Receiver operating characteristic (ROC) curve of maternal IgG irregular antibody titer and titer score for predicting blood exchange transfusion of Rh-HDN newborns were drawn, and the area under the curve (AUC) was also calculated. The procedures followed in this study were in line with the requirements of Helsinki Declaration of the World Medical Association revised in 2013. There was no significant difference between two groups in terms of general clinical data, such as gender composition ratio (P>0.05).

Results

①RBC, level of Hb, HCT in exchange transfusion group were significantly lower than those in non-exchange transfusion group, while serum TBIL concentration was significantly higher than that in non-exchange transfusion group, and all the differences were statistically significant (t=-7.94, -7.96, -8.80, 14.24; P<0.001). ②The maternal IgG irregular antibody titer and titer score in exchange transfusion group were significantly higher than those in non-exchange transfusion group, and the differences were statistically significant (Z=-4.91, t=8.72; P<0.001). ③There was statistically significant difference between maternal antibody titer and titer score for predicting blood exchange transfusion of Rh-HDN newborns (P=0.031). AUC of maternal antibody titer and titer score for predicting blood exchange transfusion of Rh-HDN newborns were 0.921 (95%CI: 0.853-0.990, P<0.001) and 0.958 (95%CI: 0.910-1.000, P<0.001), respectively, and the difference was statistically significant (Z=2.09, P=0.036). According to the principle of maximum Youden index, the optimal cut-off values for predicting blood exchange transfusion of Rh-HDN newborns by maternal IgG irregular antibody titer and titer score were 1∶80 and 57.5 points, respectively, and the sensitivities were 71.4% and 92.9%, specificities were 87.5% and 87.5%, positive predictive values were 87.0% and 89.7%, and negative predictive values were 72.4% and 91.3%, respectively.

Conclusions

Maternal IgG irregular antibody titer and titer score of Rh-HDN newborns have certain clinical value in predicting blood exchange transfusion of Rh-HDN newborns, and the predictive efficacy of maternal IgG irregular antibody titer score is better than that of maternal IgG irregular antibody titer.

表1 2组Rh-HDN患儿一般临床资料比较
表2 2组Rh-HDN患儿ABO血型及血液学相关检测指标比较
表3 2组Rh-HDN患儿母亲IgG不规则抗体效价及其效价积分比较
图1 Rh-HDN患儿母亲IgG不规则抗体效价及其效价积分预测患儿换血治疗的ROC曲线注:Rh-HDN为母婴Rh血型不合新生儿溶血病。Ig为免疫球蛋白,ROC曲线为受试者工作特征曲线
表4 患儿母亲IgG不规则抗体效价及其效价积分对Rh-HDN患儿换血治疗预测结果比较(例)
表5 Rh-HDN患儿母亲IgG不规则抗体效价及其效价积分对患儿换血治疗的预测效能比较
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