Evidence map›Paper›PMID 29095931›Full record

ArticlePloS one2017

Long-term clinical outcomes of Ahmed valve implantation in patients with refractory glaucoma.

Chang Kyu Lee, Kyoung Tak Ma, Young Jae Hong, Chan Yun Kim

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

28 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Modified Technique of Ex-PRESSClinical ophthalmology (Auckland, N.Z.) · 2023
    Article
  11. Article
  12. Safety and Efficacy of the PreserfloJournal of clinical medicine · 2022
    Article
  13. Factors associated with vision loss in Black or Hispanic patients 1 year after standalone or combined Ahmed glaucoma valve surgery.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 3 institutions in 1 country.

Chang Kyu LeeDepartment of Ophthalmology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
Kyoung Tak MaJeil Eye Clinic, Soowon, Korea.
Young Jae HongNune Eye Hospital, Seoul, Korea.
Chan Yun KimInstitute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.ORCID http://orcid.org/0000-0002-8373-9999
Nune Eye Hospital · KRUlsan College · KRYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the long-term efficacy of intraocular pressure (IOP) reduction and complications of Ahmed Glaucoma Valve (AGV) implantation in patients with refractory glaucoma.

designRetrospective study. SUBJECTS: The study involved 302 refractory glaucoma patients who underwent AGV implantation and had a minimum follow-up of 6 months between March 1995 and December 2013.

methodsAn operation was defined as successful when (1) the postoperative IOP remained between 5 and 21 mmHg and was reduced 30% compared to the baseline IOP with or without medication, (2) there was no loss of light perception or vision-threatening severe complications, and (3) no additional filtering or aqueous drainage surgery was required. Clinical records were reviewed.

main outcome measuresIOP, anti-glaucoma medications, and complications.

resultsThe mean follow-up period was 62.25 months (range, 6 to 190 months). The cumulative probability of success was 89% at 6 months, 81% at 1 year, 66% at 3 years, 44% at 10 years, and 26% at 15 years. IOP was reduced from a mean of 32.2 ± 10.5 mmHg to 18.6 ± 9.1 mmHg at 1 month, 15.2 ± 7.0 mmHg at 6 months, and 14.2 ± 3.5 mmHg at 15 years. Surgical failures were significantly increased when preoperative IOP was high, and when severe complications occurred after AGV implantation (P < 0.05).

conclusionAGV implantation was successful for IOP control in patients with refractive glaucoma in the long term. However, the success rate of surgery decreased over time. Preoperative high IOP and severe complications related to the operation were significant risk factors for failure.

Indexed as

Treatment OutcomeAdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleGlaucomaGlaucoma Drainage ImplantsHumansInfantIntraocular PressureMaleMiddle AgedYoung Adult

Identifiers

PMID29095931
PMCPMC5667863
OpenAlexW2766141113

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.