title: Determination of predictive factors of tracheobronchial prosthesis removal: stent brands are crucial.
abstract: OBJECTIVE
  We sought to describe in a retrospective study our experience in the endoscopic management of tracheobronchial stenoses over 20 years and to determine prognostic factors of stent removal.
  
  
  METHODS
  We analyzed the medical records of 166 patients (111 male and 55 female) who underwent the placement of a prosthesis for all causes of tracheobronchial stenosis between 1990 and 2009.
  
  
  RESULTS
  Overall, 34% of the patients had their stents removed. The incidence of complications for the first stent was 0.08 per patient-month. One hundred five patients (63%) had no complications. In univariate analysis, stent removal was significantly linked with the stent brand. In multivariate analysis, taking into account the causes of stenosis, the stent brand appeared to be the only factor that significantly influenced stent removal. Finally, stenosis with more than 1 stent replacement was most prone to repeat endoscopies.
  
  
  CONCLUSIONS
  Even though endoscopic stent placement is a relatively safe and effective treatment for tracheobronchial stenoses, particularly in cases with malignancy, complications led to stent removal in about one third of cases. The type of stent chosen is crucial.
authors.affiliation: Otorhinolaryngology and Cervicofacial Surgery Unit, Hôpital de la Croix-Rousse, Centre Hospitalier Universitaire Lyon , Lyon, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Buiret
authors.forename: Carole
authors.initials: C
authors.lastname: Colin
authors.forename: Guillaume
authors.initials: G
authors.lastname: Landry
authors.forename: Marc
authors.initials: M
authors.lastname: Poupart
authors.forename: Jean-Christian
authors.initials: JC
authors.lastname: Pignat
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001982:Bronchial Diseases / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D002648:Child; D003251:Constriction, Pathologic; D020878:Device Removal; D004724:Endoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012189:Retrospective Studies; D015607:Stents; D014135:Tracheal Stenosis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult