Department of Ultrasound, West China Second University Hospital, Chengdu, People's Republic of China.
Arch Gynecol Obstet. 2013 Sep;288(3):531-6. doi: 10.1007/s00404-013-2788-x. Epub 2013 Mar 24.
The aim of this study was to determine whether laterality of an absent umbilical artery (AUA) is associated with fetal growth in fetuses with isolated single umbilical artery (SUA).
Fifty singleton pregnancies were studied, including 26 cases with a right AUA and 24 cases with a left AUA in isolated SUA, and 200 singleton pregnancies with a three-vessel cord. Delivery data, including gestational age and birth weight and height, were recorded. Compare the birth weight and height in fetuses between the different sides of an AUA and the three-vessel cord by covariance analysis.
The mean difference was 0.25 kg (SD 0.05; P < 0.05) in birth weight between fetuses with a left AUA and a three-vessel cord. The mean difference was 1.03 cm (SD 0.56; P < 0.05) in birth height between fetuses with a left AUA and a three-vessel cord. No significant differences were observed in birth weight and height between fetuses with a right AUA and those with a three-vessel cord.
Our data suggest that the birth weight and height of fetuses with a left AUA in isolated SUA are lower than those with a three-vessel cord.
本研究旨在探讨孤立性单脐动脉（SUA）胎儿中脐动脉缺如的侧别与胎儿生长之间的关系。
本研究纳入了 50 例单胎妊娠，其中 26 例为右侧脐动脉缺如，24 例为左侧脐动脉缺如，200 例为三血管脐带。记录分娩数据，包括胎龄、出生体重和身高。采用协方差分析比较不同侧别的脐动脉缺如胎儿与三血管脐带胎儿的出生体重和身高。
左侧脐动脉缺如胎儿的出生体重比三血管脐带胎儿平均低 0.25 公斤（标准差 0.05；P < 0.05）。左侧脐动脉缺如胎儿的出生身高比三血管脐带胎儿平均低 1.03 厘米（标准差 0.56；P < 0.05）。右侧脐动脉缺如胎儿的出生体重和身高与三血管脐带胎儿无显著差异。
我们的数据提示孤立性 SUA 中左侧脐动脉缺如胎儿的出生体重和身高低于三血管脐带胎儿。
