Trial reportAmerican journal of ophthalmology2016
Postoperative Complications in the Ahmed Baerveldt Comparison Study During Five Years of Follow-up.
Trial report in American journal of ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 6 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
84 citing papers in PubMed, 6 syntheses or guidelines pooled it, 185 citations in OpenAlex.
- Outcomes of the Ahmed clearpath glaucoma drainage device in glaucoma: a systematic review.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026Pooled it
- Paul tube implant: a meta-analysis and systematic review evaluating clinical outcomes.Eye (London, England) · 2026Pooled it
- Outcomes of Baerveldt implantation for pediatric glaucoma following surgery: a systematic review and meta-analysis.International ophthalmology · 2025Pooled it
- Ahmed and baerveldt in glaucoma surgery: what is the safest choice? - a systematic review and meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025Pooled it
- Metabolomics in Glaucoma: A Systematic Review.Investigative ophthalmology & visual science · 2021Pooled it
- Aqueous shunts for glaucoma.The Cochrane database of systematic reviews · 2017Pooled it
- Postoperative Complications in the Primary Tube Versus Trabeculectomy Study During 5 Years of Follow-up.Ophthalmology · 2022Trial
- Treatment Outcomes in the Primary Tube Versus Trabeculectomy Study after 5 Years of Follow-up.Ophthalmology · 2022Trial
- Risk Factors for Failure of Tube Shunt Surgery: A Pooled Data Analysis.American journal of ophthalmology · 2022Trial
- A prospective randomized controlled study of Aurolab aqueous drainage implant versus Ahmed glaucoma valve in refractory glaucoma: A pilot study.Indian journal of ophthalmology · 2018Trial
- Intraluminal aspiration for Ahmed glaucoma valve tube obstruction.American journal of ophthalmology case reports · 2026Article
- Endophthalmitis following glaucoma drainage device surgery.Eye (London, England) · 2026Article
- Corneal tomography and endothelial cell density after Paul glaucoma implant surgery.Acta ophthalmologica · 2026Article
- Association between capsulectomy shunt revision and Ahmed glaucoma valve implant exposure--Shanghai Ahmed glaucoma valve implant exposure (AGVIE) study.BMC ophthalmology · 2026Article
- Complications following incisional glaucoma surgery, minimally invasive glaucoma surgery, and cycloablative procedures: a 13-year retrospective review.Digital journal of ophthalmology : DJO · 2026Article
- Clinical Outcomes of Two Versions of the Ahmed Glaucoma Valve FP7 in Glaucoma Patients.Cureus · 2025Article
- Article
- Tacrolimus eye drops treatment for recurrent exposure of the Ahmed glaucoma valve tube.European journal of medical research · 2025Article
- Five-year follow-up with the PreserFlo MicroShunt for open-angle glaucoma.Eye (London, England) · 2025Article
- Long-Term Outcome After Implantation of the Ahmed Glaucoma Valve in Refractory Glaucoma.Cureus · 2025Article
24 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 6 institutions in 4 countries.
Funding
Abstract
purposeTo compare the late complications in the Ahmed Baerveldt Comparison Study during 5 years of follow-up.
designMulticenter, prospective randomized clinical trial.
methodssetting: Sixteen international clinical centers. STUDY POPULATION: Two hundred seventy-six subjects aged 18-85 years with previous intraocular surgery or refractory glaucoma with intraocular pressure of >18 mm Hg.
interventionsAhmed Glaucoma Valve FP7 or Baerveldt Glaucoma Implant BG 101-350.
main outcome measuresLate postoperative complications (beyond 3 months), reoperations for complications, and decreased vision from complications.
resultsLate complications developed in 56 subjects (46.8 ± 4.8 5-year cumulative % ± SE) in the Ahmed Glaucoma Valve group and 67 (56.3 ± 4.7 5-year cumulative % ± SE) in the Baerveldt Glaucoma Implant group (P = .082). The cumulative rates of serious complications were 15.9% and 24.7% in the Ahmed Glaucoma Valve and Baerveldt Glaucoma Implant groups, respectively (P = .034), although this was largely driven by subjects who had tube occlusions in the 2 groups (0.8% in the Ahmed Glaucoma Valve group and 5.7% in the Baerveldt Glaucoma Implant group, P = .037). Both groups had a relatively high incidence of persistent diplopia (12%) and corneal edema (20%), although half of the corneal edema cases were likely due to pre-existing causes other than the aqueous shunt. The incidence of tube erosion was 1% and 3% in the Ahmed Glaucoma Valve and Baerveldt Glaucoma Implant groups, respectively (P = .04).
conclusionsLong-term rates of vision-threatening complications and complications resulting in reoperation were higher in the Baerveldt Glaucoma Implant than in the Ahmed Glaucoma Valve group over 5 years of follow-up.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.