Clinical analysis of 109 cases of isolated fetal pyelectasis and pregnancy outcome
10.3760/cma.j.issn.1007-9408.2015.09.010
- VernacularTitle:胎儿单纯性肾盂扩张的结局——109例临床分析
- Author:
Hao ZHU
;
Chun SHEN
;
Xiaotian LI
- Publication Type:Journal Article
- Keywords:
Pyelectasis;
Ultrasonography,prenatal;
Prognosis
- From:
Chinese Journal of Perinatal Medicine
2015;18(9):683-686
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the prognosis of isolated fetal pyelectasis detected by ultrasound.Methods A total of 109 cases of isolated fetal pyelectasis (renal pelvis anteroposterior diameter ≥ 5 mm by ultrasound screening at any gestational age without structural or chromosome abnormalities) detected by prenatal ultrasound screening from March 2004 to July 2014 in Obstetrics & Gynecology Hospital of Fudan University,were delivered and followed up until neonatal period on chromosome examination,prenatal B ultrasound and outcome of neonates.Receiver operating characteristics curves were plotted and used to predict the optimal critical point of poor prognosis and the warning point of follow-up.Results Among the 109 cases,83 cases tended to have a natural recovery during pregnancy,71 of them had normal renal pelvis.Two of the neonates died,9 cases needed surgical treatment,and 98 cases had normal renal pelvis or need follow-up only.The area under the receiver operating characteristics curves was 0.860 (95％CI:0.860± 1.96 × 0.112).The optimal critical point of poor prognosis was determined at ≥ 11 mm in anteroposterior diameter with sensitivity 81.8％,and specificity 83.7％,and the warning point of prenatal follow-up was at ≥ 7 mm in anteroposterior diameter with sensitivity 100.0％ and specificity 50.0％.Conclusions The prognosis of isolated fetal pyelectasis is mostly good.The fetus with pyelectasis thicker than 7 mm should be followed-up closely during prenatal and neonatal period,and the fetus with pyelectasis thicker than 11 mm is likely to have poor prognosis in neonatal period.
