Clinical Research Directory

Inclusion criteria: * Singleton pregnant women whose fetuses were diagnosed with dilation of the urinary tract as an isolated US finding before the 28th week of pregnancy. Fetal patients with subsequent US control in the third trimester after the 28th week of pregnancy. * Newborns and children with prenatally diagnosed UTD, which, depending on the severity, required a postnatal examination by a pediatric nephrologist within a month after birth and then in his follow-up up to 6 months after birth. Exclusion criteria: * Multiple pregnancies * Urinary tract dilation in fetuses diagnosed in the third trimester * Associated anomalies in fetuses * Aneuploidy * Newborns and children monitored by someone other than a selected pediatric nephrologist Patients who were lost from follow-up