Clinical Outcomes of Children With Prenatal Hydronephrosis: Prenatal Hydronephrosis

Background: Fetal hydronephrosis (HY) is a frequent congenital condition that may bedetected by prenatal ultrasound studies. The main underlying abnormalities found in thesecases after birth are ureteropelvic junction stenosis, primary vesicoureteral reflux, megaureter,duplex kidneys, and posterior urethral valves, with uretero-pelvic junction stenosis andprimary vesicoureteral reflux accounting for most cases.Method: Neonates with a prenatal diagnosis of congenital HY born between 2017 and 2020were referred to our center for the appropriate management and follow-up and were includedin this cross-sectional study. Ultrasonographic studies were performed in all these neonatesin the first week of birth. Prenatal HY was categorized as mild, moderate, severe, and highlysevere when the antero-posterior diameter of the renal pelvis was less than 5 mm, between 5mm and 10 mm, between 10 mm and 15 mm, and more than 15 mm, respectively.Results: A total of 164 children with prenatal HY were included in this study. 84 patients(51.2%) had unilateral HY and 80 patients (48.8%) had bilateral HY. Twelve patients hadposterior ureteral valves and 64 patients (39%) had vesical-urethral reflux (VUR). nosignificant relationship was observed between unilateral or bilateral reflux and outcome (Pvalue 0.645).Conclusion: Prenatal screening of HY is vi