Custom dynamic stent for esophageal strictures in children

J Pediatr Surg. 2011 May;46(5):848-53. doi: 10.1016/j.jpedsurg.2011.02.014.

Abstract

Background: Esophageal stenting represents a new strategy to avoid multiple dilations owing to stenosis relapse. Our custom stent improves esophageal motility unlike the widespread self-expandable plastic esophageal stents. The aim of the study was to confirm the efficacy of treatment with silicone custom stents in esophageal stenosis (ES) in pediatric patients.

Methods: A silicone stent of 7-, 9-, or 12.7-mm external diameter is built coaxially on a nasogastric tube that guarantees the correct position. The 2 ends are tailored to allow food passage between stent and esophageal wall. All patients received dexamethasone (2 mg/kg per day) for 3 days and ranitidine/proton-pump inhibitors. Study approval was obtained from our ethical board.

Results: From 1988 to 2010, 79 patients with ES, mean age 35.4 months (3-125 months), underwent esophageal hydrostatic/Savary dilations and custom-stent placement, left in place for at least 40 days. Stenting was effective in 70 (88.6%) of 79 patients. Fifty percent of the patients with effective treatment received only one dilation for stent placement. Fourteen patients received more stents successfully. There was one stent-related major complication.

Conclusion: Our custom stent improves treatment in ES. In caustic injuries, ES stenting represents the first option. In postsurgical ES, we stent after at least 5 dilations.

MeSH terms

  • Antibiotic Prophylaxis
  • Burns, Chemical / therapy
  • Caustics / adverse effects
  • Child
  • Child, Preschool
  • Dexamethasone / administration & dosage
  • Dexamethasone / therapeutic use
  • Dilatation / instrumentation*
  • Equipment Design
  • Esophageal Motility Disorders / prevention & control
  • Esophageal Perforation / etiology
  • Esophageal Stenosis / chemically induced
  • Esophageal Stenosis / etiology
  • Esophageal Stenosis / therapy*
  • Female
  • Humans
  • Infant
  • Intubation, Gastrointestinal
  • Male
  • Postoperative Complications / therapy
  • Proton Pump Inhibitors / administration & dosage
  • Proton Pump Inhibitors / therapeutic use
  • Radiation Injuries / therapy
  • Stents* / adverse effects

Substances

  • Caustics
  • Proton Pump Inhibitors
  • Dexamethasone