Evidence map›Paper›PMID 32776301›Full record

ArticleInternational ophthalmology2020

Three-year outcomes of trabeculectomy and Ahmed valve implant in patients with prior failed filtering surgeries.

Nariman Nassiri, Sarah Syeda, Hassan Tokko, Monica Thipparthi, Manuel I Cohen, Chaesik Kim, Faisal Ridha Al-Timimi, Justin R Tannir, Anju Goyal, Mark S Juzych and 2 more

Abstract read
PubMed Publisher
In one paragraph

Article in International ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Safety and Efficacy of the PreserfloJournal of clinical medicine · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Nariman NassiriWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA. nariman.nassiri@wayne.edu.
Sarah SyedaWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Hassan TokkoWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Monica ThipparthiWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Manuel I CohenWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Chaesik KimWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Faisal Ridha Al-TimimiWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Justin R TannirWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Anju GoyalWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Mark S JuzychWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
Bret A HughesWayne State University School of Medicine, Kresge Eye Institute, 4717 St. Antoine Street, Detroit, MI, 48201-1423, USA.
M Roy WilsonWayne State University, Detroit, MI, USA.
Wayne State University · USKresge Eye Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare three-year surgical outcomes of trabeculectomy versus Ahmed valves in patients with prior failed trabeculectomy.

methodsThis is a longitudinal retrospective comparative study of one-hundred twenty adult patients with prior failed trabeculectomy who underwent a repeat trabeculectomy or Ahmed valve implant. Demographic and clinical data were collected up to 3 years on all study participants at the Kresge Eye Institute from 2004 to 2016. Visual acuity, intraocular pressure, number of intraocular pressure reducing medications, and success rates at various time points up to 3 years after repeat surgery were the main outcome variables.

resultsSixty-five and sixty eyes were included in the trabeculectomy and the Ahmed valve groups, respectively. Baseline intraocular pressure significantly decreased in both groups at 3 years (p < 0.01). The number of medications was relatively similar to baseline in both study groups at 3 years (p > 0.05). There was no statistically significant difference between the two groups in visual acuity, percentage of intraocular pressure reduction, number of medications, or success rates at any follow-up time points (p > 0.05 for all). CONCLUSIONS AND RELEVANCE: After 3 years, both trabeculectomy and Ahmed valves significantly reduced intraocular pressure from baseline, but with relatively similar number of medications compared to baseline. There was no significant difference in any outcome measure between trabeculectomy and Ahmed valves at any follow-up time points. These results may suggest neither trabeculectomy or Ahmed valves are superior in patients with previously failed trabeculectomies.

Indexed as

GlaucomaGlaucoma Drainage ImplantsTrabeculectomyAdultFollow-Up StudiesHumansIntraocular PressurePostoperative ComplicationsRetrospective StudiesTreatment OutcomeAhmed valvesGlaucomaTrabeculectomyTube shunts

Identifiers

PMID32776301
OpenAlexW3048921895

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.