title: Transcanalicular revision surgery for failed dacryocystorhinostomy.
abstract: OBJECTIVE
  To evaluate the effectiveness of transcanalicular multi diode laser in revision dacryocystorhinostomy and to determine the outcomes.
  
  
  METHODS
  Fifty-three consecutive patients (19 males, 44 females) who were referred for recurrent dacryostenosis with epiphora after a failed primary dacryocystorhinostomy (DCR) operation were included in the study. Patients were assigned to two separate groups on the basis of primary DCR operation: either endonasal dacryocystorhinostomy (END-DCR) or transcanalicular multi diode laser dacryocystorhinostomy (TC-MDL DCR). TC-MDL DCR technique was used for revision surgeries in both groups. The mean age of the patients was 46.5 ± 13.1 (Range, 15 -71) and the average follow-up duration was 12 months.
  
  
  RESULTS
  The success rate was 62% (18/29) in the primarily TC-MDL DCR operated group, and 85.2% (29/34) in the primarily END-DCR operated group respectively. The occlusion of internal ostium with granulation tissue was the leading etiology of unsuccessful surgical outcome in both group 1 and group 2 (42.8% and 28.5% respectively).
  
  
  CONCLUSIONS
  TC-MDL DCR is a minimally invasive surgical method with relatively high success and low complication rates in patients with failed primary DCR requiring revision.
authors.affiliation: Department of Ophthalmology, Medipol University, Faculty of Medicine, Bagcilar/Istanbul, Turkey.
authors.forename: M
authors.initials: M
authors.lastname: Ozsutcu
authors.forename: A
authors.initials: A
authors.lastname: Yenigun
authors.forename: A
authors.initials: A
authors.lastname: Meric
authors.forename: B
authors.initials: B
authors.lastname: Ozucer
authors.forename: R
authors.initials: R
authors.lastname: Dogan
authors.forename: G
authors.initials: G
authors.lastname: Gulkilik
authors.forename: M S
authors.initials: MS
authors.lastname: Kocabora
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003608:Dacryocystorhinostomy; D005260:Female; D006097:Granulation Tissue; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000601:surgery; D053685:Laser Therapy; D054023:Lasers, Semiconductor; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D009301:Nasolacrimal Duct; D009666:Nose; D012086:Reoperation; D017211:Treatment Failure; D055815:Young Adult