孕中期超声检查显示肾前后径骨盆直径>4mm的婴儿产后肾积水的发生率。

Frequency of postnatal hydronephrosis in infants with a renal anterior-posterior pelvic diameter > 4 mm on midtrimester ultrasound.

作者信息

Chou Ching-Yu, Chen Li-Ching, Cheong Mei-Leng, Tsai Ming-Song

机构信息

Department of Obstetrics and Gynecology, Cathay General Hospital Shinchu Branch, Shinchu, Taiwan.

Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, Cathay General Hospital, Taipei, Taiwan; Department of Obstetrics and Gynecology, Cathay General Hospital, Taipei, Taiwan.

出版信息

Taiwan J Obstet Gynecol. 2015 Oct;54(5):554-8. doi: 10.1016/j.tjog.2015.08.007.

DOI:10.1016/j.tjog.2015.08.007

PMID:26522110

Abstract

OBJECTIVE

To examine the association of antenatal renal pelvic dilatation observed on midtrimester ultrasound screening with the presence of hydronephrosis in newborn infants.

MATERIALS AND METHODS

The records of patients who received fetal ultrasound examination at 18-28 weeks' gestation from May 2008 to March 2012 were retrospectively reviewed. A fetal renal pelvic anterior-posterior (AP) diameter > 4 mm was considered abnormal and ≤ 4 mm was considered normal. On postnatal ultrasound, a renal pelvic AP diameter > 3 mm was considered to indicate hydronephrosis and ≤ 3 mm was considered normal. The association of postnatal hydronephrosis with prenatal pelvic AP diameter was determined using binary logistic regression analysis.

RESULTS

The study comprised 1310 newborn infants: 684 (52.2%) male and 626 (47.8%) female. Multivariate analysis showed a right or left prenatal AP renal pelvic diameter > 4 mm was associated with a higher risk of postnatal hydronephrosis compared with a right and left prenatal AP renal pelvic diameter ≤ 4 mm. Boys had a higher risk for postnatal hydronephrosis than girls (odds ratio = 2.42, p < 0.05).

CONCLUSION

An antenatal renal pelvic AP diameter > 4 mm on midtrimester ultrasound is predictive of postnatal hydronephrosis.

摘要

目的

探讨孕中期超声筛查时观察到的产前肾盂扩张与新生儿肾积水的相关性。

材料与方法

回顾性分析2008年5月至2012年3月期间妊娠18 - 28周接受胎儿超声检查的患者记录。胎儿肾盂前后径（AP）> 4 mm被视为异常，≤ 4 mm被视为正常。产后超声检查时，肾盂AP直径> 3 mm被视为提示肾积水，≤ 3 mm被视为正常。采用二元逻辑回归分析确定产后肾积水与产前肾盂AP直径的相关性。