Outcome after prenatal diagnosis of fetal urinary tract abnormalities: A tertiary center experience

Abstract

Objective: With the widespread use of ultrasonography for fetal screening, the detection and management of congenital urinary tractabnormalities has become crucial. In this study, we aimed to describe the clinical approaches in patients with prenatally detected urinary tractabnormalities.Material and Methods: This study is a retrospective, single-center study performed at a perinatology unit of a university hospital, between2010 and 2016. The outcomes of 124 patients who were prenatally diagnosed as having urinary tract abnormalities are reported. Variablesincluded in the analysis were fetal sex, birth week and weight, persistency, and necessity surgery after birth for renal pelvic dilatation. Low-riskrenal pelvic dilatation was determined as an anterior-posterior (AP) diameter of 4-7 mm at 16-28 weeks, 7-10 mm after 28 weeks, whereas highriskdilatation was defined as AP measurements of ≥7 mm at 16-28 weeks, ≥10 mm after 28 weeks, respectively.Results: The majority of patients consisted of male fetuses with bilateral pelviectasis (62.9%, 20.2%, respectively). The mean age was 28.8±6.4years. The mean gestational age at birth was 34.2±7.8 weeks. The mean birth weight was 2593±1253.3 g. The need for surgery was greater inhigh-risk patients than in low-risk patients (58.3% vs. 8.7%) (p