单脐动脉的产前超声诊断
Prenatal sonographic diagnosis of single umbilical artery.
作者信息
Wu M H, Chang F M, Shen M R, Yao B L, Chang C H, Yu C H, Hsu C C, Huang K E
机构信息
Department of Obstetrics and Gynecology, National Cheng-Kung University Hospital, Tainan, Taiwan, Republic of China.
出版信息
J Clin Ultrasound. 1997 Oct;25(8):425-30. doi: 10.1002/(sici)1097-0096(199710)25:8<425::aid-jcu3>3.0.co;2-l.
PURPOSE
We evaluated the reliability of prenatal sonography and the usefulness of the umbilical vein and artery diameter ratio, transverse umbilical artery diameter, and systolic-diastolic ratio in detecting single umbilical artery (SUA).
METHODS
In 24 of 6,970 fetuses, SUA was detected using prenatal sonography and confirmed at birth. These cases were retrospectively reviewed.
RESULTS
Four fetuses had major malformations, and 1 had a minor anomaly. Thirteen fetuses with SUA underwent chromosomal analysis, and only 2 had abnormal karyotypes. Most of the SUA fetuses had a normal systolic-diastolic ratio.
CONCLUSIONS
Our retrospective study determined that the prognosis of SUA fetuses is good when there is no concurrent anatomic or chromosomal abnormality. Although some reports claim that the transverse umbilical artery diameter or the ratio between umbilical vein and artery diameters can predict SUA, we found no significant improvement in the recognition of SUA using these parameters.
目的
我们评估了产前超声检查的可靠性，以及脐静脉与动脉直径比、脐动脉横径和收缩期-舒张期比值在检测单脐动脉（SUA）中的作用。
方法
在6970例胎儿中的24例中，通过产前超声检查检测到SUA并在出生时得到证实。对这些病例进行了回顾性研究。
结果
4例胎儿有严重畸形，1例有轻微异常。13例SUA胎儿进行了染色体分析，只有2例核型异常。大多数SUA胎儿的收缩期-舒张期比值正常。
结论
我们的回顾性研究确定，当不存在并发的解剖或染色体异常时，SUA胎儿的预后良好。尽管一些报告称脐动脉横径或脐静脉与动脉直径之比可预测SUA，但我们发现使用这些参数在识别SUA方面并无显著改善。
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