title: [Endoscopic nasal dacryocystorhinostomy: results and advantages over the external approach].
abstract: Dacryocystorhinostomy (DCR) is a procedure used to create a lachrymal drainage pathway into the nasal cavity in order to reestablish the permanent drainage of a previously obstructed excretory system.
  
  
  OBJECTIVE
  to report our results obtained with endoscopic DCR technique, describing its advantages and disadvantages
  
  
  METHODS
  Historic cohort.
  
  
  METHODS
  we retrospectively analyzed thirty-two dacryocystorhinostomies performed at the Otorhinolaryngology Discipline from March 2002 to January 2004 on patients with post-lachrymal sac obstruction confirmed by dacryocystorhinography (DCG). In all cases, the patients were submitted to probing with Crawford probe.
  
  
  RESULTS
  surgery was bilateral in ten of the twenty-two analyzed patients, totaling thirty-two procedures, twenty-nine of which were primary surgeries and three revision procedures after unsuccessful external DCR. Our success rate was 79.12%.
  
  
  CONCLUSIONS
  endoscopic DCR proved to be a safe and low morbidity technique, which also avoids facial scars and maintains the mechanism of the lachrymal pump, with results similar to those obtained with external DCR.
authors.forename: Daniel Salgado
authors.initials: DS
authors.lastname: Küpper
authors.forename: Ricardo Cassiano
authors.initials: RC
authors.lastname: Demarco
authors.forename: Renato
authors.initials: R
authors.lastname: Resende
authors.forename: Wilma Terezinha
authors.initials: WT
authors.lastname: Anselmo-Lima
authors.forename: Fabiana Cardoso P
authors.initials: FC
authors.lastname: Valera
authors.forename: Iracema
authors.initials: I
authors.lastname: Moribe
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003608:Dacryocystorhinostomy / Q000379:methods* / Q000592:standards; D004724:Endoscopy / Q000379:methods* / Q000592:standards; D004812:Epidemiologic Methods; D019793:Fluorescein; D006801:Humans; D007767:Lacrimal Duct Obstruction / Q000175:diagnosis; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000601:surgery*; D012086:Reoperation; D016896:Treatment Outcome
chemical_list: D019793:Fluorescein