R H是目前44个人类红细胞血型系统中除ABO血型外,最复杂、最富多态性的血型系统,D抗原是其中免疫原性最强的,红细胞上无D抗原为RHD阴性(简称RH-)血型。RH-人群的比例差异较大,欧美人群约占15-17%,非洲人群约占3-10%,我国及其他东南亚人...R H是目前44个人类红细胞血型系统中除ABO血型外,最复杂、最富多态性的血型系统,D抗原是其中免疫原性最强的,红细胞上无D抗原为RHD阴性(简称RH-)血型。RH-人群的比例差异较大,欧美人群约占15-17%,非洲人群约占3-10%,我国及其他东南亚人群比例少约占0.3-0.4%。RH-在我国虽属稀有血型,但根据其人群的分布特点和遗传规律,我国的RH-孕妇分娩RH+胎儿的概率反而极高;且随着我国近年来多胎生育政策的逐步开放,RH-妇女再次妊娠率逐年增加,RH-血的用血需求也相应增加。上述情况增加了母婴RH血型不合的风险,进而增加了胎儿/新生儿免疫溶血性疾病 (简称HDFN)的风险,HDFN发病早、进展快、病情严重、并发症风险高,严重威胁围产儿的生命健康、影响患儿远期生活质量,因此规范RH-孕产妇的围孕期管理尤为重要。但目前我国尚无统一、权威的管理指南,故本文综合了国内外相关文献,总结了围产保健方向的RH-孕产妇的围孕期管理规范要点,供临床产科医生参考,以降低HDFN发生率、围产儿死亡率、提高母婴保健质量。展开更多
Objective:To investigate the phenotype distribution of five antigens of Rh blood group system and the specificity of Rh blood group irregular antibodies in pregnant women with second child.To analyze the relationship ...Objective:To investigate the phenotype distribution of five antigens of Rh blood group system and the specificity of Rh blood group irregular antibodies in pregnant women with second child.To analyze the relationship between Rh blood group antibody and hemolytic disease of the newborn(HDN)in second-child pregnant women,and to provide laboratory basis for the diagnosis and treatment of hemolytic disease of the newborn(Rh-HDN).Methods:500 pregnant women with second child were collected as the study group and 500 pregnant women with first pregnancy as the control group(all pregnant women underwent obstetric examination in the integrated obsteric clinic of our hospital from January 2020 to January 2021).To detectethe Rh blood group antigens(D,C,c,E,e)of the two groups of samples,screene the irregular antibodies,identify the specificity of irregular antibodies,determine the titer and record the hemolytic disease of the newborn of pregnant women with positive Rh blood group antibodies.Results:There were 11 Rh phenotypes in the pregnant women with second child in the study group:CCDee(152cases,30.4%),CcDEe(136cases,27.2%)CcDee(84cases,16.8%),ccDEE(30cases,6%),ccDee(31cases,6.2%),CCDEe(14cases,2.8%),ccDEe(9cases,1.8%),cc dee(18cases,3.6%),CCDEE(2cases,0.4%),CcdEe(12cases,2.4%),Ccdee(6cases,1.2%),CCd ee(6cases,1.2%).A total of 42 cases(8.4%)in the pregnant women with second child were negative for RhD.There were 10 Rh phenotypes in the pregnant women with first pregnancy in the control group:CCDee(144cases,28.8%),CcDEe(138cases,27.6%),CcDee(90cases,18%),ccDEE(42cases,8.4%),ccDee(28cases,5.6%),CCDEe(10cases,2%),ccDEe(8cases,1.6%),cc dee(19cases,3.8%),CCDEE(1cases,0.2%),CcdEe(11cases,2.2%),Ccdee(9cases,1.8%).A total of 39 cases(7.8%)in the pregnant women with first pregnancy were negative for RhD.In the pregnant women with second child in the study group,the positive rate of irregular antibody screening was 4.0%(20/500),and the specificity of Rh blood group antibodies was found as follows:anti-E 1.8%(9/500),anti-D 1.4%(7/500),anti-C 0.4%(2/500)and anti-Ec 0.4%(2/500).The positive rate of irregular antibody screening in the pregnant women with first pregnancy in the control group was 0,and the difference between the two groups was statistically significant(P<0.05).Rh-HDN was found in 10 newborns(2%)of the 20 women with positive irregular antibodies in the pregnant women with second child,and the antibody titer during pregnancy was more than 32.No Rh-HDN occurred in newborns in the pregnant women with first pregnancy,and the difference between the two groups was statistically significant(P<0.05).Conclusion:Pregnancy stimulation can increase the probability of irregular antibodies in pregnant women,and irregular antibodies in Rh blood group can easily cause Rh-HDN,so attention should be paid to routine detection of five antigens of Rh blood group and irregular antibody screening during prenatal examination.It is helpful for the early detection of Rh-blood irregular antibodies and the assessment of fetal or neonatal risk of Rh-HDN.展开更多
Among a total of 29 blood group systems and over 600 different blood group antigens discovered so far, ABO and Rhesus are the most important blood group systems. The most significance rhesus antigen is Rh-D because of...Among a total of 29 blood group systems and over 600 different blood group antigens discovered so far, ABO and Rhesus are the most important blood group systems. The most significance rhesus antigen is Rh-D because of its immunogenicity. The sound knowledge of ABO and Rh-D antigens and its distribution in population is essential for the effective management of blood transfusion services, in population genetic studies, in resolving medico-legal issues and more importantly in compatibility test in blood transfusion practice. Study is aimed to provide data on ABO and Rh-D distribution in Gwalior region (Madhya Pradesh) and its comparison with related studies in India and abroad. Total 90,000 samples in 4 years from January 2004 to December 2007 were grouped for ABO, Rh-D and their subgroups at Blood Bank of Gajra Raja Medical College, along with Emergency Blood Bank, Gwalior, Madhya Pradesh, India. Blood group distribution among these samples showed phenotypes A, B, AB and O as 22.7%, 37.5%, 9% and 30.8% respectively. A2 and A2B were 8.0% and 8.6% respectively. The Rh-D negative phenotype was found 8.9% and DU variants/weaker D was 0.036% among the sample tested. In cord blood samples, the incidence of A2 and A2B were 18.6% and 20.2% respectively.展开更多
目的：回顾性分析Rh（D）阴性患者特殊情况紧急抢救输血应用“配合型输血”的病例资料，探讨应用配合型输血的安全性和有效性。方法对新疆阿克苏地区2014年1月-2015年12月Rh（D）阴性患者特殊情况紧急抢救输血6例应用“配合型输血”（...目的：回顾性分析Rh（D）阴性患者特殊情况紧急抢救输血应用“配合型输血”的病例资料，探讨应用配合型输血的安全性和有效性。方法对新疆阿克苏地区2014年1月-2015年12月Rh（D）阴性患者特殊情况紧急抢救输血6例应用“配合型输血”（病例组）及6例应用同型输血（对照组）的基本资料、红细胞抗体筛查、胆红素、血红蛋白（Hb）、网织红细胞计数（Ret）、红细胞比容（Hct）及住院天数（d）等进行统计分析，探讨配合型输血安全性与有效性。结果病例组与对照组输血后72 h红细胞抗体筛查阴性均未产生抗-D、输血后24 h Hb实际升高值分别为（28.53±10.09）g/L和（21.24±3.13）g/L、无非传染性输血并发症发生，病例组与对照组输血前后各指标的差异无统计学意义。结论 Rh（D）阴性患者特殊情况紧急抢救输血应用“配合型输血”是一种安全有效的临床输血治疗途径，同时对输注Rh（D）阳性红细胞的患者也应建立的规范的追踪、随访及评价体系。展开更多
基金Youth Fund Program of Hainan Provincial Natural Science Fundation of China(No.820QN410)。
文摘Objective:To investigate the phenotype distribution of five antigens of Rh blood group system and the specificity of Rh blood group irregular antibodies in pregnant women with second child.To analyze the relationship between Rh blood group antibody and hemolytic disease of the newborn(HDN)in second-child pregnant women,and to provide laboratory basis for the diagnosis and treatment of hemolytic disease of the newborn(Rh-HDN).Methods:500 pregnant women with second child were collected as the study group and 500 pregnant women with first pregnancy as the control group(all pregnant women underwent obstetric examination in the integrated obsteric clinic of our hospital from January 2020 to January 2021).To detectethe Rh blood group antigens(D,C,c,E,e)of the two groups of samples,screene the irregular antibodies,identify the specificity of irregular antibodies,determine the titer and record the hemolytic disease of the newborn of pregnant women with positive Rh blood group antibodies.Results:There were 11 Rh phenotypes in the pregnant women with second child in the study group:CCDee(152cases,30.4%),CcDEe(136cases,27.2%)CcDee(84cases,16.8%),ccDEE(30cases,6%),ccDee(31cases,6.2%),CCDEe(14cases,2.8%),ccDEe(9cases,1.8%),cc dee(18cases,3.6%),CCDEE(2cases,0.4%),CcdEe(12cases,2.4%),Ccdee(6cases,1.2%),CCd ee(6cases,1.2%).A total of 42 cases(8.4%)in the pregnant women with second child were negative for RhD.There were 10 Rh phenotypes in the pregnant women with first pregnancy in the control group:CCDee(144cases,28.8%),CcDEe(138cases,27.6%),CcDee(90cases,18%),ccDEE(42cases,8.4%),ccDee(28cases,5.6%),CCDEe(10cases,2%),ccDEe(8cases,1.6%),cc dee(19cases,3.8%),CCDEE(1cases,0.2%),CcdEe(11cases,2.2%),Ccdee(9cases,1.8%).A total of 39 cases(7.8%)in the pregnant women with first pregnancy were negative for RhD.In the pregnant women with second child in the study group,the positive rate of irregular antibody screening was 4.0%(20/500),and the specificity of Rh blood group antibodies was found as follows:anti-E 1.8%(9/500),anti-D 1.4%(7/500),anti-C 0.4%(2/500)and anti-Ec 0.4%(2/500).The positive rate of irregular antibody screening in the pregnant women with first pregnancy in the control group was 0,and the difference between the two groups was statistically significant(P<0.05).Rh-HDN was found in 10 newborns(2%)of the 20 women with positive irregular antibodies in the pregnant women with second child,and the antibody titer during pregnancy was more than 32.No Rh-HDN occurred in newborns in the pregnant women with first pregnancy,and the difference between the two groups was statistically significant(P<0.05).Conclusion:Pregnancy stimulation can increase the probability of irregular antibodies in pregnant women,and irregular antibodies in Rh blood group can easily cause Rh-HDN,so attention should be paid to routine detection of five antigens of Rh blood group and irregular antibody screening during prenatal examination.It is helpful for the early detection of Rh-blood irregular antibodies and the assessment of fetal or neonatal risk of Rh-HDN.
文摘Among a total of 29 blood group systems and over 600 different blood group antigens discovered so far, ABO and Rhesus are the most important blood group systems. The most significance rhesus antigen is Rh-D because of its immunogenicity. The sound knowledge of ABO and Rh-D antigens and its distribution in population is essential for the effective management of blood transfusion services, in population genetic studies, in resolving medico-legal issues and more importantly in compatibility test in blood transfusion practice. Study is aimed to provide data on ABO and Rh-D distribution in Gwalior region (Madhya Pradesh) and its comparison with related studies in India and abroad. Total 90,000 samples in 4 years from January 2004 to December 2007 were grouped for ABO, Rh-D and their subgroups at Blood Bank of Gajra Raja Medical College, along with Emergency Blood Bank, Gwalior, Madhya Pradesh, India. Blood group distribution among these samples showed phenotypes A, B, AB and O as 22.7%, 37.5%, 9% and 30.8% respectively. A2 and A2B were 8.0% and 8.6% respectively. The Rh-D negative phenotype was found 8.9% and DU variants/weaker D was 0.036% among the sample tested. In cord blood samples, the incidence of A2 and A2B were 18.6% and 20.2% respectively.
文摘目的：回顾性分析Rh（D）阴性患者特殊情况紧急抢救输血应用“配合型输血”的病例资料，探讨应用配合型输血的安全性和有效性。方法对新疆阿克苏地区2014年1月-2015年12月Rh（D）阴性患者特殊情况紧急抢救输血6例应用“配合型输血”（病例组）及6例应用同型输血（对照组）的基本资料、红细胞抗体筛查、胆红素、血红蛋白（Hb）、网织红细胞计数（Ret）、红细胞比容（Hct）及住院天数（d）等进行统计分析，探讨配合型输血安全性与有效性。结果病例组与对照组输血后72 h红细胞抗体筛查阴性均未产生抗-D、输血后24 h Hb实际升高值分别为（28.53±10.09）g/L和（21.24±3.13）g/L、无非传染性输血并发症发生，病例组与对照组输血前后各指标的差异无统计学意义。结论 Rh（D）阴性患者特殊情况紧急抢救输血应用“配合型输血”是一种安全有效的临床输血治疗途径，同时对输注Rh（D）阳性红细胞的患者也应建立的规范的追踪、随访及评价体系。
