title: [Long term clinical outcomes of Baerveldt glaucoma implantation via the pars plana].
abstract: OBJECTIVE
  To present the long-term follow-up results of Baerveldt glaucoma implant (BGI) with a drainage tube from the pars plana in secondary glaucoma patients.
  
  
  METHODS
  The subjects were patients with light perception and secondary glaucoma (> 21 mmHg) who had received more than 2 glaucoma operations: 11 were neovascular glaucoma patients and 5 angle-closure glaucoma patients with peripheral anterior synechia. After vitreous surgery, a BGI plate was fixed at the sclera in the superior temporal equator, and a drainage tube inserted from the pars plana into the vitreous cavity. The successful criteria needed to satisfy the 3 following conditions: 1) vision of more than light perception, 2) IOP > or = 5 mmHg and not higher than 22 mmHg, 3) no need for further glaucoma operations.
  
  
  RESULTS
  The follow-up period was 82.5 months (from 5 to 172 months). Eight patients were judged a success, 4 patients a failure and 4 patients quit for personal reasons. The 10-year success rate was estimated at 72.8%.
  
  
  CONCLUSIONS
  BGI via the pars plana is a useful method for long term IOP lowering effect in secondary glaucoma.
authors.affiliation: Department of Ophthalmology, Showa University School of Medicine, Japan. tueda@med.showa-u.ac.jp
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Ueda
authors.forename: Rui
authors.initials: R
authors.lastname: Hiramatsu
authors.forename: Makoto
authors.initials: M
authors.lastname: Zenno
authors.forename: Ryohei
authors.initials: R
authors.lastname: Koide
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D005901:Glaucoma / Q000601:surgery*; D020327:Glaucoma Drainage Implants; D015812:Glaucoma, Angle-Closure / Q000601:surgery; D015355:Glaucoma, Neovascular / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D015868:Pars Planitis; D016896:Treatment Outcome