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Related Experiment Videos

Improved endoscopic stenting for malignant dysphagia using Tygon plastic prostheses

S Bohnacker1, F Thonke, M Hinner

  • 1Dept. of Endoscopic Surgery, University Hospital Eppendorf, Hamburg, Germany.

Endoscopy
|September 24, 1998
PubMed
Summary
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This study shows that modified Tygon plastic stents can be safely and effectively used to treat malignant esophageal stenosis, even near the upper esophageal sphincter (UES). The technique avoids perforation and achieves good palliation, with reintervention rates comparable to metal stents.

Area of Science:

  • Gastroenterology
  • Interventional Endoscopy
  • Oncology

Background:

  • Malignant esophageal stenosis poses treatment challenges, with conventional plastic stents carrying a risk of perforation, especially near the upper esophageal sphincter (UES).
  • Self-expandable metal stents have low procedure-related complication rates but similar late complication rates requiring retreatment.
  • This study evaluates a modified Tygon plastic stent technique for palliative treatment.

Purpose of the Study:

  • To describe a stent placement technique using modified Tygon plastic stents for malignant esophageal stenosis.
  • To evaluate the safety and efficacy of this technique, particularly for lesions near the UES.
  • To compare outcomes with existing treatment modalities.

Main Methods:

  • Prospective study of 71 consecutive patients with incurable malignant esophageal stenosis over two years.

Related Experiment Videos

  • Individually tailored Tygon plastic stents (9-14 mm diameter) were used.
  • Stepwise bougienage was performed prior to stent placement, which was done endoscopically without fluoroscopic monitoring.

    • Main Results:

    • Technical success was achieved in all patients, with no procedure-related perforations, hemorrhage, or respiratory issues.
    • 89% of patients achieved improved or stabilized dysphagia, allowing oral nutrition.
    • 27% of patients required reinterventions, mainly for dysphagia or nutritional issues; reintervention rates were comparable to self-expanding metal stents.

    Conclusions:

    • Modified Tygon plastic stents can be safely placed using stepwise bougienage, even for lesions near the UES.
    • Effective palliation of dysphagia is achievable, with perforation avoided.
    • The reintervention rates are comparable to those of self-expanding metal stents, offering a viable alternative.