SynthesisBMC ophthalmology2015
Comparison of the Ahmed glaucoma valve with the Baerveldt glaucoma implant: a meta-analysis.
Synthesis in BMC ophthalmology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.
- Efficacy of Ahmed and Baerveldt glaucoma drainage device implantation in the pediatric population: A systematic review and meta-analysis.Survey of ophthalmologyPooled it
- Ahmed glaucoma valve implant for refractory glaucoma in children: A systematic review and meta-analysis.Science progressPooled it
- The long-term surgical outcomes of the Aurolab aqueous drainage implant versus the Ahmed glaucoma valve for refractory pediatric glaucoma in Saudi children.Indian journal of ophthalmology · 2025Article
- Minimally Invasive Tube Surgery (MITS)-A Novel Method in Glaucoma Drainage Device Implantation.Journal of clinical medicine · 2024Article
- Effect of immediate shallow anterior chamber after Ahmed glaucoma valve implantation on intermediate-term intraocular pressure control.Indian journal of ophthalmology · 2022Article
- Conventional glaucoma implants and the new MIGS devices: a comprehensive review of current options and future directions.Eye (London, England) · 2021Review
- Transscleral cyclophotocoagulation with MicroPulseInternational ophthalmology · 2021Observational
- Three-year outcomes of trabeculectomy and Ahmed valve implant in patients with prior failed filtering surgeries.International ophthalmology · 2020Article
- Dynamics of structural reversal in Bruch's membrane opening-based morphometrics after glaucoma drainage device surgery.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2020Article
- Comparison of complications after Ahmed versus Baerveldt implant in glaucoma patients: one year follow-up.International journal of ophthalmology · 2020Article
- Clinical outcomes of Ahmed glaucoma valve in anterior chamber versus ciliary sulcus.Eye (London, England) · 2017Article
- The Choice of Drainage Device in Complicated Glaucomas: Comparing Ahmed and Baerveldt Implants.In vivo (Athens, Greece)Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aims to compare the efficacy and safety of the Ahmed glaucoma valve (AGV) with the Baerveldt glaucoma implant (BGI) in glaucoma patients.
methodsDatabases were searched to identify studies that met pre-stated inclusion criteria, involving randomized controlled clinical trials (RCTs) and non-randomized controlled clinical trials. Treatment effect was analyzed using a random-effect model.
resultsTen controlled clinical trials (1048 eyes) were analyzed, involving two RCTs and eight retrospective comparative studies. Short-term results (6-18 months) and long-term results (>18 months) were analyzed separately. There was no significant difference in the success rate for short-term follow-up between the AGV and BGI groups (5 studies, 714 eyes, odds ratio [OR]: 0.97; 95 % confidence interval [CI]: 0.56, 1.66; P = 0.90). For long-term pooled results (7 studies, 835 eyes), the success rate of AGVs was lower than that of BGIs (OR: 0.73; 95 % CI: 0.54, 0.99, P = 0.04), However, subgroup and sensitivity analyses did not show a significant difference in the success rate between the two groups (P ≥0.05). The AGV group had a higher mean intraocular pressure than the BGI group in short-term (6 studies, 685 eyes, weighted mean difference [WMD]: 2.12 mmHg; 95 % CI: 0.72-3.52; P <0.05) and long-term pooled results (7 studies, 659 eyes, WMD: 1.85 mmHg; 95 % CI: 0.43, 3.28; P = 0.01). The BGI group required fewer glaucoma medications after implantation than the AGV group in two follow-up periods (all P <0.05). The AGV was found to be associated with a significantly lower frequency of total complications (8 studies, 971 eyes, OR: 0.67; 95 % CI: 0.50-0.90; P = 0.007) and severe complications (8 studies, 971 eyes, OR: 0.57; 95 % CI: 0.36-0.91; P = 0.02) than the BGI.
conclusionsThe study showed no significant difference in success rate between the two groups. The BGI was more effective for control of intraocular pressure and required fewer medications than the AGV, but the AGV had lower incidence of total and severe complications than the BGI.
Indexed as
Identifiers
What OpenQuestion holds
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.