Self-expanding stent made of polyester mesh with silicon coating (Polyflex) in the treatment of inoperable tracheal stenoses

J Bras Pneumol. May-Jun 2007;33(3):241-7. doi: 10.1590/s1806-37132007000300003.
[Article in English, Portuguese]

Abstract

Objective: To evaluate the Polyflex stent in terms of its efficacy, ease of implantation, and complications in patients with tracheobronchial affections.

Methods: This was a prospective study, in which sixteen patients with inoperable tracheal stenosis secondary to orotracheal intubation (n = 12), neoplasia (n = 3), or Wegener's granulomatosis (n = 1) were monitored. Of these patients, eleven were women, and five were men. The mean age was 42.8 years (range, 21-72 years). Patients were submitted to implantation of a total of 21 Polyflex stents. All procedures were carried out in the operating room under general anesthesia, and the stents were implanted via suspension laryngoscopy using the stent applicator.

Results: Stents were implanted and symptoms were resolved in all cases. The stents remained in place for a mean period of 7.45 months, ranging from 2 to 18 months. The complications observed in the immediate postoperative period were dysphonia (in two patients, 12.5%) and odynophagia (in two patients, 12.5%). Late complications were cough (in ten patients, 62.5%), migration (in seven patients, 43.75%), granuloma formation (in two patients, 12.5%), and pneumonia (in one patient, 6.25%).

Conclusion: The Polyflex stent is easily implanted, easily removed, well tolerated by patients and effective in resolving symptoms. However, its use is associated with a high rate of migration, especially in patients with post-orotracheal intubation stenosis.

Publication types

  • Evaluation Study

MeSH terms

  • Adult
  • Aged
  • Cough / etiology
  • Female
  • Follow-Up Studies
  • Foreign-Body Migration / etiology
  • Humans
  • Male
  • Middle Aged
  • Prospective Studies
  • Silicones*
  • Stents / adverse effects
  • Stents / standards*
  • Time Factors
  • Tracheal Stenosis / etiology
  • Tracheal Stenosis / therapy*
  • Treatment Outcome

Substances

  • Silicones