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Prevalence of urachal remnants in children according to age and their anatomic variants

Masahiro Zenitani1, Satoko Nose2, Takaharu Oue2

  • 1Department of Pediatric Surgery, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya, Hyogo, 663-8501, Japan. zenitani@pedsurg.med.osaka-u.ac.jp.

Pediatric Surgery International
|July 25, 2022
PubMed

Insights

Urachal remnants are common in infants, with a 63.2% prevalence in children under one year old. This study analyzed urachal remnant prevalence and anatomy in pediatric patients undergoing laparoscopic surgery.

Area of Science:

  • Pediatric Surgery
  • Anatomy
  • Urology

Background:

  • Urachal remnants are congenital anomalies with varying presentations.
  • Understanding their prevalence and anatomical variations is crucial for clinical management.

Purpose of the Study:

  • To determine the prevalence of urachal remnants in pediatric patients.
  • To identify anatomical variants of urachal remnants.
  • To correlate prevalence with patient age using laparoscopic visualization.

Main Methods:

  • Retrospective review of 394 pediatric patients undergoing laparoscopic inguinal hernia repair.
  • Patients categorized into age-based groups.
  • Laparoscopic assessment of urachal remnant presence and anatomical features.

Main Results:

  • Urachal remnants identified in 35.5% of patients.
  • Significantly higher prevalence (63.2%) in children under 1 year old.
  • No significant prevalence difference in children aged 1 year or older.
  • 42 cases (10.7%) showed urachal remnants merging with the lateral umbilical ligament.

Conclusions:

  • Nonoperative management is recommended for asymptomatic urachal remnants, particularly in infants under 1 year, due to likely spontaneous resolution.
  • Knowledge of anatomical variants aids in accurate diagnosis and complete surgical excision.
Abstract

Keywords:
Lateral umbilical ligamentPediatricUmbilical arterial cordUrachusVariant

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