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Early pyloric stenosis: a case control study

Marie Demian1, Son Nguyen, Sherif Emil

  • 1Division of Pediatric Surgery, Miller Children's Hospital, Long Beach, California & University of California, Irvine School of Medicine, Orange, CA, USA.

Pediatric Surgery International
|August 22, 2009
PubMed

Insights

Early pyloric stenosis (EPS) in infants is linked to breast feeding and family history. EPS infants have smaller pyloric measurements, potentially delaying diagnosis and treatment, necessitating age-specific sonographic criteria for improved outcomes.

Area of Science:

  • Pediatric Surgery
  • Neonatal Medicine
  • Diagnostic Imaging

Background:

  • Pyloric stenosis (PS) is uncommon in the first two weeks of life, often leading to diagnostic and treatment delays.
  • Early presentation of PS (EPS) requires specific characterization to improve patient outcomes.

Purpose of the Study:

  • To delineate the characteristics of infants with early pyloric stenosis (EPS).
  • To test the hypothesis that EPS patients have smaller pyloric dimensions compared to older patients.
  • To identify factors associated with EPS and its impact on hospital stay.

Main Methods:

  • A case-control study was conducted using a 5-year database of PS patients.
  • EPS patients (admitted 2-14 days) were matched with controls (admitted >4 weeks) by gender, electrolyte status, and surgeon.
  • A pediatric radiologist retrospectively reviewed ultrasounds, comparing demographic, clinical, diagnostic, therapeutic, and outcome data.

Main Results:

  • Sixteen patients (5.8%) presented with EPS.
  • EPS patients showed a higher prevalence of positive family history (31% vs. 0%) and breast milk feeding (75% vs. 31%).
  • Sonography revealed significantly shorter pyloric length (17.1 vs. 20.5 mm) and muscle thickness (3.5 vs. 4.9 mm) in EPS patients.

Conclusions:

  • Infants with EPS are more likely to be breastfed and have a positive family history.
  • EPS is associated with a longer hospital stay.
  • Implementing age-specific sonographic measurements can prevent diagnostic delays and improve outcomes for EPS.
Abstract

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