title: A modified self-expanding Niti-S stent for the management of benign hypopharyngeal strictures.
abstract: BACKGROUND
  The management of patients with refractory hypopharyngeal strictures after surgery in combination with radiation therapy is disappointing, and nutrition through feeding tubes is often required.
  
  
  OBJECTIVE
  To evaluate the efficacy and safety of a modified self-expanding Niti-S metal stent in the treatment of hypopharyngeal strictures after combined therapy for laryngeal cancer.
  
  
  METHODS
  Case series.
  
  
  METHODS
  A general hospital and a university hospital.
  
  
  METHODS
  Seven consecutive patients were included. One of them did not have laryngectomy.
  
  
  METHODS
  All patients received a modified Niti-S stent.
  
  
  METHODS
  Improvement of dysphagia, avoiding periodic bougienage, and enteral nutrition through feeding tubes.
  
  
  RESULTS
  After placement of the first stent, dysphagia improved in all patients. Six of 7 patients developed stent migration and/or granulomatous tissue ingrowth or overgrowth. Additional stents were placed in all patients after a median of 3 months after the previous stent placement. One patient developed an esophagorespiratory fistula caused by a Polyflex stent. Two patients died of causes unrelated to the stent. The remaining 5 patients remained alive and asymptomatic after a median follow-up of 10 months.
  
  
  CONCLUSIONS
  Periodic stent exchange. Stent placement did not resolve the stricture definitively. We had a limited number of patients and have no long-term outcome data yet.
  
  
  CONCLUSIONS
  The use of this modified Niti-S stent avoids both enteral nutrition through feeding tubes and the need for periodic bougienage in patients with difficult-to-treat benign hypopharyngeal strictures.
authors: Department of Gastroenterology, General Hospital, Sanremo, Italy.
authors: Massimo
authors: M
authors: Conio
authors: Sabrina
authors: S
authors: Blanchi
authors: Rosangela
authors: R
authors: Filiberti
authors: Alessandro
authors: A
authors: Repici
authors: Marco
authors: M
authors: Barbieri
authors: Claudio
authors: C
authors: Bilardi
authors: Peter D
authors: PD
authors: Siersema
mesh_terms: D000368:Aged; D003251:Constriction, Pathologic / Q000601:surgery; D004724:Endoscopy / Q000379:methods; D004867:Equipment Design; D005260:Female; D006801:Humans; D007013:Hypopharynx / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010608:Pharyngeal Diseases / Q000601:surgery*; D015607:Stents; D016896:Treatment Outcome