Mild Fetal Hydronephrosis, Gestational Diabetes and Spontaneous Resolution vs Moderate-severe Fetal Hydronephrosis, Obstructive Causes and Worse Postnatal Outcome

Inclusion Criteria

• •Written informed consent.
• •Single pregnancy in normal progression, in presence of single or bilateral fetal hydronephrosis of any grade of severity with or without a gestational diabetes diagnosis and without evidence of other ultrasound detectable abnormalities of the fetus affecting other anatomical districts (cases).
• •Single physiological pregnancy in normal evolution without finding of fetal hydronephrosis and gestational diabetes (controls).
• •Single pregnancy with a diagnosis of gestational diabetes in the absence of fetal hydronephrosis (controls).
• •Having performed at least one prenatal ultrasound at the obstetric ultrasound clinics and obstetric DH of the Foundation.
• •Have been screened for gestational diabetes.