Prenatal diagnosis of fetal posterior urethral valve by ultrasound
10.3877/cma.j.issn.1672-6448.2017.08.007
- VernacularTitle:产前超声在胎儿后尿道瓣膜诊断中的应用价值
- Author:
Yu WANG
1
;
Ailu CAI
;
dan ZHAO
;
Jingyu LI
;
Zhongying LIN
;
Wei SUN
Author Information
1. 中国医科大学附属盛京医院超声科
- Keywords:
Ultrasonography,prenatal;
Fetus;
Urinary system abnormalities
- From:
Chinese Journal of Medical Ultrasound (Electronic Edition)
2017;14(8):605-608
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of prenatal ultrasound in diagnosis of fetal posterior urethral valve (PUV) and the differential diagnosis of related diseases.Methods The antenatal ultrasonographic manifestations and the outcomes of 14 cases with congenital lower urinary tract obstruction (LUTO) in Shengjing Hospital of China Medical University from December 2014 to December 2016 were analyzed.The ultrasound features and differential diagnosis of fetal posterior urethral valve were summarized and analyzed.Results Fourteen male fetuses with LUTO were prenatally diagnosed.Eleven fetuses were diagnosed as PUV,I as urethral atresia,2 as megacystis and LUTO.Among the fourteen fetuses,11 were confirmed as PUV after delivery,1 as urethral atresia,2 as vesicoureteral reflux (VUR).One case among them was diagnosed as PUV,and latter proved to be VUR.In 2 cases among them,prenatal ultrasound indicated megacystis,but 1 case was proved to be PUV,and 1 case was VUR.The prenatal ultrasound of the PUV fetuses showed enlarged bladder and thickened bladder wall.Most of them were accompanied by the keyhole sign.Conclusion Prenatal ultrasound can assist in the diagnosis of PUV by analyzing the anatomy of the bladder and accompanying malformations,which provides valuable diagnostic information for the clinical practice.
