at San Diego, California and other locations
study started
estimated completion



The purpose of this study is to determine whether early (before NICU discharge) or late (55-60 weeks post-menstrual age) inguinal hernia repair is safer for premature infants who have an inguinal hernia.

Official Title

Timing of Inguinal Hernia Repair in Premature Infants: A Randomized Trial


This is a randomized clinical trial comparing early versus late repair in premature infants with an inguinal hernia (IH) to determine which approach may be safer. Safety in this trial is defined as the freedom from significant adverse events, a reduction in hospital days during the study period, and normal neurodevelopmental testing at 2 years. Costs of each treatment strategy are also important and are being evaluated.


Inguinal Hernia, Premature Birth of Newborn, premature infants, anesthesia safety, neurodevelopmental outcome, preterm infants, neonatal prematurity, Premature Birth, Hernia, IH repair before NICU discharge, IH repair at 55-60 weeks post-menstrual age, Early inguinal hernia (IH) repair, Late inguinal hernia (IH) repair


You can join if…

  • Infant with estimated gestational age at birth of < 37 weeks, 0 days
  • In a NICU at participating site
  • Diagnosed with an IH per the pediatric surgery team
  • Parents and providers willing to randomize the infant

You CAN'T join if...

  • Infant is undergoing another operative procedure and IH repair is planned as a secondary procedure (e.g. fundoplication or G tube is planned, and IH repair is considered a secondary procedure)
  • Known major congenital anomaly that impacts neurodevelopmental outcome or chromosomal abnormality
  • Family unable to return for follow up and later IH repair; or likely unable to monitor IH as outpatient


  • UCSD Rady Children's Hospital
    San Diego California 92123 United States
  • Naval Medical Center San Diego
    San Diego California 92103 United States


in progress, not accepting new patients
Start Date
Completion Date
Vanderbilt University Medical Center
Study Type
Expecting 600 study participants
Last Updated