title: Thermal damage influences endonasal dacryocystorhinostomy success.
abstract: OBJECTIVE
  To compare the success rates of two surgical methods of endonasal dacryocystorhinostomy (DCR) at the stage of ostium creation. In procedure 1, a Colorado needle is used to create the mucosectomy, while in procedure 2 no heated instruments are applied to the mucosa.
  
  
  METHODS
  A total of 173 patients (218 eyes) underwent endonasal DCR between 2006 and 2009. Efficacy was assessed by a fluorescein endoscopic test at 6 months of follow-up.
  
  
  RESULTS
  The success rate in group 2 was higher than in group 1 (91 vs. 81%, p < 0.05).
  
  
  CONCLUSIONS
  We have found a significant difference, which supports that a 'cold' surgical technique may be better than the use of heated instruments.
authors: Institut de Microcirugia Ocular, Barcelona, Spain. martagvilaro@hotmail.com
authors: Marta
authors: M
authors: Garcia Vilaro
authors: LuzMaría
authors: L
authors: Vásquez
authors: Alfonso
authors: A
authors: Marin
authors: Anniken
authors: A
authors: Burés
authors: Ramón
authors: R
authors: Medel
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003608:Dacryocystorhinostomy / Q000379:methods*; D005260:Female; D006801:Humans; D006979:Hyperthermia, Induced; D007440:Intubation; D008297:Male; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000601:surgery*; D010027:Osteotomy / Q000379:methods; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult