title: [Endoscopic endonasal dacryocystorhinostomy assisted by image guidance system to chronic dacryocystistis].
abstract: OBJECTIVE
  To estimate the value of nasal endoscopic dacryocystorhinostomy combined image guidance system in treating chronic dacryocystistis.
  
  
  METHODS
  Thirteen cases (14 eyes) performed surgeries with nasal endoscopic dacryocystorhinostomy combined image guidance system from January 2010 to August 2013 were retrospectively analyzed. Their clinical data were analyzed and the effect of the surgery was evaluated.
  
  
  RESULTS
  All patients were followed-up for more than half a year. Of all patients,12 eyes were cured, 2 eyes were improved and 0 eyes were noneffective. The total treatment effectiveness was 100%. There was no complication for all cases.
  
  
  CONCLUSIONS
  Nasal endoscopic dacryocystorhinostomy combined image guidance system is an effective and reliable treatment method for chronic dacryocystistis, especially for intraoperative location of lacrimal sac and control of operating process.
authors.forename: Yin
authors.initials: Y
authors.lastname: Li
authors.forename: Weitian
authors.initials: W
authors.lastname: Zhang
mesh_terms: D003608:Dacryocystorhinostomy / Q000379:methods*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009301:Nasolacrimal Duct; D009666:Nose; D012189:Retrospective Studies; D016896:Treatment Outcome