高原地区藏族胎儿颈项透明层正常值调查  

Normal reference of nuchal translucency thickness in plateau Tibetan fetuses

作　　者：周文蓉[1] 刘金艳[1] 周德贤[1] 

机构地区：[1]青海红十字医院超声科,西宁810000

出　　处：《第三军医大学学报》2016年第21期2368-2370,共3页Journal of Third Military Medical University

摘　　要：目的调查青海高原地区藏族单胎胎儿颈项透明层（nuchal translucency,NT）厚度的正常范围是否存在地域及种族差异。方法选择2012年10月至2015年12月在我科行NT检查、世居于我省3 500 m以上海拔高度的青南地区的藏族正常单胎孕妇412例,年龄19-35（25±2）岁,孕周11-13＋6周,胎儿头臀长45-84 mm,孕妇体质量（60±5）kg。签署知情同意书,行产前超声检查,观察胎儿结构及大小是否正常,测量胎儿头臀长及NT厚度。结果纳入研究的藏族单胎胎儿NT厚度测量值正常值参考值95%CI（P2.5,P97.5）为（1.1-3.1）mm,藏族胎儿NT厚度均数为2.1 mm。结论高原地区藏族胎儿NT厚度与平原地区及其他种族间无明显差异。Objective To investigate the normal range of the thickness of nuchal translucency（ NT）in Tibetan fetuses in the single-fetus pregnant women living in the Qinghai plateau. Methods A total of 412 singleton pregnant Tibetan natives who undergoing NT test by ultrasonography in our hospital during October2012 and December 2015 and living in Qinghai South Region（ altitude more than 3 500 m） were subjected in this study. The pregnant women were at an age of 19 to 35（ 25 ± 2）,weighted 50 - 65 kg and had 11 -13＋ 6weeks of gestational age. The fetal head hip length was ranged between 45 and 84 mm. After signed the informed content,the pregnant women were given prenatal ultrasound examination for the fetal structure and size,head hip length and NT thickness. Results The normal range of NT thickness（ 95% CI） was 1. 1 -3. 1 mm in the Tibetan native women,and the median value was 2. 1 mm. Conclusion Our results indicate that there is no difference in the NT thickness between the fetuses living in Tibetan plateau region and those living in plain area and of other nationalities.

关 键 词：高原地区 藏族孕妇 藏族胎儿 颈项透明层厚度 

分 类 号：R195.2[医药卫生—卫生统计学] R339.54[医药卫生—卫生事业管理]