鼻骨异常联合NT超声在早孕期胎儿染色体异常诊断中的应用价值.docx
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1、鼻骨异常联合NT超声在早孕期胎儿染色体异常诊断中的应用价值郑丽I,袁君I王秋娟2,雷小菲I*1 .陕西省西安市阎良区人民医院心电超声科7100892 .陕西省西安市阎良区人民医院妇产科710089通讯作者:雷小菲,主治医师,邮箱:基金名称:陕西省重点研发计划项目(2021SF-329)【摘要】目的探讨鼻骨异常联合颈项透明层(NT)超声在早孕期胎儿染色体异常诊断中的应用价值。方法选取2018年3月至2022年3月于我院行早孕期产前筛查发现筛查指标异常的80例高危妊娠孕妇为研究对象,均接受鼻骨异常及NT超声检查,以羊水穿刺染色体核型检查结果为金标准,评估鼻骨异常联合NT超声在早孕期胎儿染色体异常诊
2、断中的应用价值。结果80例高危妊娠孕妇中,共检测出15例胎儿染色体异常(18.75%),其中21-三体综合征占46.67%(7/15),18-三体综合征占20.00%(3/15),45,X占6.67%(1/15),21三体嵌合占13.33%(2/15),染色体结构异常占13.33%(2/15);鼻骨异常3例,NT增厚70例,鼻骨异常+NT增厚7例;鼻骨异常联合NT超声对早孕期胎儿染色体异常的阳性预测值为57.14%(4/7),明显高于鼻骨异常单独诊断的33.33%(1/3)和NT超声单独诊断的14.29%(10/70),差异有统计学意义(PV0.05)。结论鼻骨异常联合NT超声在早孕期胎儿染色
3、体异常诊断中的应用价值较高,二者联合检查能够显著提高对胎儿染色体异常的阳性预测值,可作为重要指标应用于早孕期胎儿染色体异常的临床筛查中。【关键词】早孕期;胎儿;染色体异常;鼻骨异常;颈项透明层;超声ApplicationvalueofnasalboneabnormalitiescombinedwithNTultrasoundinthediagnosisoffetalchromosomalabnormalitiesinthefirsttrimesterZheng-Lil,Yuan-Junl,Wang-Qiujuan2,Lei-XiaoFei*1. DepartmentofElectrocardi
4、ography,People,sHospitalofYanliangDistrict,XianCity,ShaanxiProvince,7100892. DepartmentofObstetricsandGynecology,PeoplesHospitalofYanliangDistrict,XianCity,ShaanxiProvince,710089AbstractJObjectiveToinvestigatetheapplicationvalueofnasalboneabnormalitiescombinedwithnuchaltranslucency(NT)ultrasoundinth
5、ediagnosisoffetalchromosomalabnormalitiesinthefirsttrimester.MethodsAtotalof80high-riskpregnantwomenwhowerefoundtohaveabnormalscreeningindicatorsduringthefirst-trimesterprenatalscreeninginourhospitalfromMarch2018toMarch2022wereselectedastheresearchobjects,allofthemreceivednasalboneabnormalitiesandNT
6、ultrasoundexamination,theresultsofamniocentesischromosomalkaryotypewereusedasthegoldstandardtoevaluatenasalboneabnormalities,theapplicationvalueofnasalboneabnormalitiescombinedwithNTultrasoundinthediagnosisoffetalchromosomalabnormalitiesinearlypregnancywasevaluated.ResultsAmongthe80pregnantwomenwith
7、high-riskpregnancy,15fetalchromosomalabnormalitiesweredetected(18.75%),amongwhichtrisomy21accountedfor46.67%(7/15)andtrisomy18accountedfor20.00%(3/15),45,Xaccountedfor6.67%(1/15),trisomy21accountedfor13.33%(2/15),chromosomalstructuralabnormalitiesaccountedfor13.33%(2/15);3casesofnasalboneabnormaliti
8、es,70casesofNTthickening,and7casesofnasalboneabnormality+NTthickening;thepositivepredictivevalueofnasalboneabnormalitycombinedwithNTultrasonographyforfetalchromosomalabnormalitiesinearlypregnancywas57.14%(4/7),whichwassignificantlyhigherthan33.33%(1/3)ofnasalboneabnormalityaloneandNTUltrasoundaloned
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- 异常 联合 NT 超声 早孕 胎儿 染色体 诊断 中的 应用 价值