The Management of Antenatal Hydronephrosis

Document Type


Publication Date



Antenatal hydronephrosis (ANH) is one of the most common anomalies identified during routine prenatal ultrasonography. Most of the time ANH is self-limiting, but it can also be an indication of underlying urologic pathology. Complications associated with ANH include increased risk of urinary tract infection and decreased renal function. Risk factors that increase the likelihood of complications include a high value for anteroposterior diameter, female gender, the lack of circumcision in males, and the presence of reflux or obstruction. The use of antibiotic prophylaxis in patients with ANH is debatable, but the presence of certain risk factors can help the pharmacist determine the appropriateness of antibiotic use in patients.


This article was originally published in US Pharmacist in 2016.


Jobson Medical Information LLC