title: [Balloon dacryocystoplasty in the treatment of congenital nasolacrimal duct obstruction after previous unsuccessful surgery].
abstract: OBJECTIVE
  To introduce the procedure of balloon dacryocystoplasty and to evaluate its effectiveness and complications as the treatment of congenital nasolacrimal duct obstruction after a previous unsuccessful surgery.
  
  
  METHODS
  Prospective case series. Balloon dacryocystoplasty was performed under general anesthesia in 50 eyes of 31 children with congenital nasolacrimal duct obstruction following previous unsuccessful surgery in Beijing Children's Hospital between May 2008 and October 2009. A probe was introduced through the punctum into the inferior meatus of the nasal cavity. A deflated balloon catheter was introduced anterogradely and the balloon was inflated several times to perform the dilation of the nasolacrimal duct. Treatment success was defined as absence of epiphora and mucous discharge, negative results of fluorescein dye disappearance test (FDDT) and the unobstructed irrigation of the lacrimal system during the follow-up period of 4 - 17 months after tube removal.
  
  
  RESULTS
  Successful operation was reported in 44 of 50 eyes (88.0%; 95% confidence interval 85.5% - 96.9%). Forty of 50 eyes were FDDT 0 - 1(80.0%). Major complications included epistaxis (10 eyes, 20.0%) and lacrimal duct laceration (2 eyes, 4.0%).
  
  
  CONCLUSIONS
  Balloon dacryocystoplasty is a safe, simple and effective procedure for congenital nasolacrimal duct obstruction following previous unsuccessful surgery without disturbing the anatomy of normal lacrimal drainage system.
authors.affiliation: Department of Ophthalmology, Capital Medical University, Beijing, China. ykyg0202@vip.163.com
authors.forename: Gang
authors.initials: G
authors.lastname: Yu
authors.forename: Man
authors.initials: M
authors.lastname: Hu
authors.forename: Qian
authors.initials: Q
authors.lastname: Wu
authors.forename: Wen-hong
authors.initials: WH
authors.lastname: Cao
authors.forename: Yun-wei
authors.initials: YW
authors.lastname: Fan
authors.forename: Qi
authors.initials: Q
authors.lastname: Lin
authors.forename: Wen
authors.initials: W
authors.lastname: Liu
mesh_terms: D000293:Adolescent; D002404:Catheterization; D002648:Child; D002675:Child, Preschool; D005260:Female; D005456:Fluorescent Dyes; D006801:Humans; D007767:Lacrimal Duct Obstruction / Q000151:congenital / Q000628:therapy*; D008297:Male; D011446:Prospective Studies; D016896:Treatment Outcome
chemical_list: D005456:Fluorescent Dyes