title: Endoscopic dacryocystorhinostomy without silicone stent.
abstract: CONCLUSIONS
  In nasolacrimal duct (NLD) obstruction patients that undergo endoscopic dacryocystorhinostomy (DCR), creation of a patent rhinostomy with adequate epithelialization can be accomplished without a stent. However, in common canalicular obstruction patients, a silicone stent seems to have a beneficial role and to bear more favorable results.
  
  
  OBJECTIVE
  The aim of this study was to evaluate the surgical outcome of endoscopic DCR without the use of a silicone stent.
  
  
  METHODS
  In all, 36 patients (41 eyes) who underwent endoscopic DCR were enrolled in this study. The patients were classified into a DCR with silicone stent group and a DCR without silicone stent group. Then each of the groups was subdivided into common canalicular obstruction group and NLD obstruction group. Surgical outcomes were evaluated by postoperative symptom improvement and patency of the rhinostomy under nasal endoscopic exam.
  
  
  RESULTS
  The epiphora was improved in 84.2% of the silicone stent group and 81.8% of the non-silicone stent group. Categorized by the level of obstruction, in common canalicular obstruction, the success rate was 84.5% (11/13) in the silicone stent group and 57.1% (4/7) in the no stent group. In NLD obstruction, the success rate was 83.0% (5/6) in the silicone stent group and 93.3% (14/15) in the no stent group.
authors.affiliation: Department of Otorhinolaryngology - Head and Neck Surgery, Chungbuk National University, Cheongju, Korea.
authors.forename: Je Yeob
authors.initials: JY
authors.lastname: Yeon
authors.forename: Woo Sub
authors.initials: WS
authors.lastname: Shim
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003608:Dacryocystorhinostomy / Q000379:methods*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000601:surgery*; D012189:Retrospective Studies; D012828:Silicones; D015607:Stents; D016896:Treatment Outcome
chemical_list: D012828:Silicones