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Hydronephrosis: prenatal and postnatal evaluation and management

Dennis B Liu1, William R Armstrong2, Max Maizels1

  • 1Ann and Robert H. Lurie Children's Hospital of Chicago, Department of Urology, Northwestern University Feinberg School of Medicine, 225 East Chicago Avenue, Box 24, Chicago, IL 60611, USA.

Clinics in Perinatology
|August 27, 2014
PubMed

Antenatal hydronephrosis (ANH) is one of the most frequently detected abnormalities found on routine prenatal ultrasounds, affecting 1% to 4.5% of all pregnancies. Despite its prevalence, there continues to be uncertainty regarding the clinical impact after birth. Prognosis depends on the severity of the dilation. Expectant prenatal management is the rule with fetal intervention rarely needed in a few select cases. Ureteropelvic junction obstruction and vesicoureteral reflux are the most common postnatal diagnoses. A renal and bladder ultrasound is essential in the follow-up of patients with ANH and helps dictate further investigation with voiding cystourethrography and/or diuretic renography.

Keywords:
Antenatal diagnosisHydronephrosisObstructive uropathyRadiologyUrinary tract infectionsVesicoureteral reflux

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