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实验室诊断婴幼儿感染人巨细胞病毒的方法学比较 被引量:9

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摘要 目的评价婴幼儿感染人巨细胞病毒(HCMV)检测方法的临床应用价值,为临床提供合理的诊断依据。方法收集正常婴幼儿、确诊及高度怀疑为HCMV感染婴幼儿患者,检测其血常规、尿中病毒包涵体、HCMV-Ig G、HCMV-Ig M和尿HCMV-DNA,并对这些项目进行方法学比较和评价。结果与正常婴幼儿比较,420例尿HCMV-DNA阳性婴幼儿血常规中白细胞总数、淋巴细胞比值均显著升高,并且患儿病毒扩增的Ct值与淋巴细胞总数存在负相关关系。510例送检可疑标本的阳性率为尿HCMV-DNA>HCMV-Ig G>HCMV-Ig M>尿包涵体。以下项目诊断HCMV感染的敏感性为:尿HCMV-DNA>HCMV-Ig G>HCMV-Ig M>尿包涵体,特异性为尿包涵体>HCMV-Ig M>HCMV-Ig G>尿HCMV-DNA。结论从临床角度出发,血常规、HCMV-Ig M、HCMV-Ig G和尿包涵体不适合作为早期HCMV感染的实验室诊断项目,而患儿尿HCMV-DNA的检测,在其敏感性、特异性及临床确诊方面优势明显,可以尽早为诊断婴幼儿感染HCMV提供充分的实验室依据。
出处 《广东医学》 CAS CSCD 北大核心 2014年第20期3218-3220,共3页 Guangdong Medical Journal
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