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  • Title: Mild pyelectasis diagnosed by prenatal ultrasound is not a predictor of urinary tract morbidity in childhood.
    Author: Damen-Elias HA, Luijnenburg SE, Visser GH, Stoutenbeek PH, de Jong TP.
    Journal: Prenat Diagn; 2005 Dec; 25(13):1239-47. PubMed ID: 16353272.
    Abstract:
    OBJECTIVES: To determine whether children with prenatally diagnosed mild pyelectasis have more urinary tract morbidity during childhood than children without this finding. METHODS: Case-control study in children with pyelectasis (anteroposterior diameter of the fetal renal pelvis of 5-10 mm). A validated questionnaire was sent to the parents of 208 cases and 416 matched controls. RESULTS: The questionnaire was returned by 146 cases and 250 controls. There was a male predominance in the case group (p = < 0.0001). There was no difference in voiding habits or in prevalence of urinary tract infections (UTI). The prevalence of UTI was high: 11.6% in cases and 10.0% in controls. The only difference was a higher prevalence of constipation in the case group (p = 0.003). Postnatally, 41 children had an ultrasound examination and 16 were referred to a paediatrician or urologist: 3 had persisting pyelectasis, 3 had a recurrent UTI and 1 required surgery (a pyeloplasty). Four of the controls were referred to a paediatrician or urologist: 3 had recurrent UTI and 1 had urinary incontinence. CONCLUSION: Children with a mild fetal pyelectasis do not have more urinary tract morbidity during childhood than children without this finding. Therefore, there seems to be no need for additional investigation after birth.
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