title: Long-term results of endoscopic dilatation for tracheal and subglottic stenosis.
abstract: OBJECTIVE
  The purpose of this study was to assess the long-term results of endoscopic dilatation of airway stenosis and to evaluate predictive factors for favorable results.
  
  
  METHODS
  Fifty-four patients with tracheal and subglottic stenosis who underwent endoscopic dilatation with at least 12 months follow-up were enrolled in this study. We evaluated predictive factors for final treatment outcome such as stenosis length, location, characteristics, procedure type, and the severity of stenosis.
  
  
  RESULTS
  The final outcome of endoscopic dilatation showed a cure rate of 40.7%, improvement rate of 46.3%, and failure rate of 13.0%. Patients with mild stenosis or a shorter stenotic segment and those who underwent a touch-up procedure following tracheal resection with end-to-end anastomosis showed better outcomes. The cure rate of endoscopic dilatation for patients with shorter mild stenosis was 72.2%.
  
  
  CONCLUSIONS
  Endoscopic dilatation may be a primary treatment modality for patients with airway stenosis characterized by mild severity and a short stenotic segment.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Sol Kil
authors.initials: SK
authors.lastname: Oh
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Ki Nam
authors.initials: KN
authors.lastname: Park
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea.
authors.forename: Seung Won
authors.initials: SW
authors.lastname: Lee
keywords: Endoscopic dilatation; Subglottic stenosis; Tracheal stenosis