孕妇感染HCMV时IgG抗体亲和力与HCMV DNA联合检测的临床意义

摘要

Objective:This article through the study of HCMV-IgG avidity index (avidity the index,AI) and HCMV-DNA detection,maternal primary infection and secondary infection of a comprehensive evaluation. Designed to prevent and reduce perinatal infections,abortion and neonatal congenital malformations,hearing impairment and mental retardation to provide effective and accurate test data and clinical diagnosis is based on.Method:Using the German Virion/serion enzyme-linked immunosorbent assay (ELISA) quantitative reagent,detected in maternal serum of HCMV IgM and IgG antibodies and IgG avidity;Zhongshan Medical University,Tat RV nucleic acid amplification (PCR) fluorescence quantitative detection maternal serum levels in HCMV-DNA,and the results were analyzed.Result:341 cases of pregnant women,maternal history of poor pregnant women group of HCMV-IgG low affinity sample proportion was significantly higher than the initial pregnancy. The adverse pregnancy history of pregnant women HCMV-DNA positive proportion of the number of cases was significantly higher than the initial pregnancy.Conclusion:341 cases of pregnant women in a certain proportion of HCMV now disease infection,it is recommended that pregnant women especially those with history of adverse pregnancy by as much as possible HCMV-IgG avidity index and HCMV-DNA checks in order to take early measures to avoid due to HCMV infection causes the occurrence of birth defects.%　　目的：本文通过研究HCMV-IgG亲和力指数(avidity index,AI)以及HCMV-DNA的检测,对孕产妇原发性感染及继发性感染进行综合评价。旨在为防止和减少围产期感染、流产及新生儿先天畸形、听力障碍和智力障碍提供有效而准确的检测数据及临床诊断依据。方法：采用德国Virion/serion公司酶联免疫吸附试验(ELISA)定量试剂,检测孕妇血清中HCMV的IgM和IgG抗体、IgG抗体亲和力；采用中山医科大学达安公司RV核酸扩增(PCR)荧光定量检测孕妇血清中HCMV-DNA,并对其结果进行分析。结果：341例孕妇中,HCMV-IgG低亲和力样本孕产史不良孕妇组所占比例显著高于初次妊娠孕妇。孕产史不良孕妇HCMV-DNA阳性例数所占比例显著高于初次妊娠孕妇。结论：341例孕妇中存在一定比例的HCMV现症感染,建议妊娠妇女尤其是有不良孕产史者尽可能同时进行HCMV-IgG亲和力指数及HCMV-DNA检查,以便尽早采取措施,避免由于HCMV感染导致的新生儿出生缺陷的发生。