Hydronephrosis: Prenatal and Postnatal Evaluation and Management

Dennis B. Liu*, William R. Armstrong, Max Maizels

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

55 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)661-678
Number of pages18
JournalClinics in Perinatology
Issue number3
StatePublished - Sep 2014


  • Antenatal diagnosis
  • Hydronephrosis
  • Obstructive uropathy
  • Radiology
  • Urinary tract infections
  • Vesicoureteral reflux

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology


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