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Congenital constriction of pylorus

Last edited: 4/15/2026

Overview

Congenital constriction band syndrome (CBS) involves fibrous bands that constrict tissues, often affecting limbs but potentially including the gastrointestinal tract, leading to functional impairment and associated anomalies 1.

Diagnosis

  • Presence of fibrous bands constricting limb or gastrointestinal structures 1.
  • Associated anomalies may include pes equinovarus, cleft palate, congenital heart defects 1.
  • Evaluation includes clinical examination and imaging (e.g., ultrasound, MRI) to assess extent of constriction and associated anomalies 1.
  • Management

  • Surgical intervention for constrictive bands to relieve tissue constriction and restore function 1.
  • Management of associated anomalies (e.g., cardiac defects, limb deformities) may require multidisciplinary care 1.
  • No specific drug dosing mentioned for CBS management 1.
  • Special Populations

  • Pediatrics: High prevalence of low birth weight (25%) and prematurity (31%) among affected infants 1.
  • Comorbidities: Presence of multiple congenital anomalies increases complexity of management 1.
  • Key Recommendations

  • Perform comprehensive clinical evaluation including imaging to identify extent of constriction and associated anomalies (Evidence: Moderate 1).
  • Initiate surgical intervention for symptomatic constriction bands to improve functional outcomes (Evidence: Moderate 1).
  • Address associated congenital anomalies through multidisciplinary care tailored to individual patient needs (Evidence: Expert opinion 1).
  • References

    1 Koskimies E, Syvänen J, Nietosvaara Y, Mäkitie O, Pakkasjärvi N. Congenital constriction band syndrome with limb defects. Journal of pediatric orthopedics 2015. link

    Original source

    1. [1]
      Congenital constriction band syndrome with limb defects.Koskimies E, Syvänen J, Nietosvaara Y, Mäkitie O, Pakkasjärvi N Journal of pediatric orthopedics (2015)

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