Treatment outcomes in the Tube Versus Trabeculectomy (TVT) study after five years of follow-up.

Journal Article (Journal Article;Multicenter Study)

PURPOSE: To report 5-year treatment outcomes in the Tube Versus Trabeculectomy (TVT) Study. DESIGN: Multicenter randomized clinical trial. SETTINGS: Seventeen clinical centers. STUDY POPULATION: Patients 18 to 85 years of age who had previous trabeculectomy and/or cataract extraction with intraocular lens implantation and uncontrolled glaucoma with intraocular pressure (IOP) ≥18 mm Hg and ≤40 mm Hg on maximum tolerated medical therapy. INTERVENTIONS: Tube shunt (350-mm(2) Baerveldt glaucoma implant) or trabeculectomy with mitomycin C ([MMC]; 0.4 mg/mL for 4 minutes). MAIN OUTCOME MEASURES: IOP, visual acuity, use of supplemental medical therapy, and failure (IOP >21 mm Hg or not reduced by 20%, IOP ≤5 mm Hg, reoperation for glaucoma, or loss of light perception vision). RESULTS: A total of 212 eyes of 212 patients were enrolled, including 107 in the tube group and 105 in the trabeculectomy group. At 5 years, IOP (mean ± SD) was 14.4 ± 6.9 mm Hg in the tube group and 12.6 ± 5.9 mm Hg in the trabeculectomy group (P = .12). The number of glaucoma medications (mean ± SD) was 1.4 ± 1.3 in the tube group and 1.2 ± 1.5 in the trabeculectomy group (P = .23). The cumulative probability of failure during 5 years of follow-up was 29.8% in the tube group and 46.9% in the trabeculectomy group (P = .002; hazard ratio = 2.15; 95% confidence interval = 1.30 to 3.56). The rate of reoperation for glaucoma was 9% in the tube group and 29% in the trabeculectomy group (P = .025). CONCLUSIONS: Tube shunt surgery had a higher success rate compared to trabeculectomy with MMC during 5 years of follow-up in the TVT Study. Both procedures were associated with similar IOP reduction and use of supplemental medical therapy at 5 years. Additional glaucoma surgery was needed more frequently after trabeculectomy with MMC than tube shunt placement.

Full Text

Duke Authors

Cited Authors

  • Gedde, SJ; Schiffman, JC; Feuer, WJ; Herndon, LW; Brandt, JD; Budenz, DL; Tube versus Trabeculectomy Study Group,

Published Date

  • May 2012

Published In

Volume / Issue

  • 153 / 5

Start / End Page

  • 789 - 803.e2

PubMed ID

  • 22245458

Pubmed Central ID

  • PMC4460598

Electronic International Standard Serial Number (EISSN)

  • 1879-1891

Digital Object Identifier (DOI)

  • 10.1016/j.ajo.2011.10.026


  • eng

Conference Location

  • United States