Evidence map›Paper›PMID 34819660›Full record

SynthesisEye (London, England)2022

Combination intravitreal anti-vascular endothelial growth factor inhibitors and macular laser photocoagulation relative to intravitreal injection monotherapy in macular oedema secondary to retinal vein occlusion: a meta-analysis of randomized controlled trials.

Nishaant Bhambra, Aman P Sayal, Marko M Popovic, Rajeev H Muni, Peter J Kertes

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Eye (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Trial
  2. Review
  3. Observational
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

5 authors at 4 institutions in 1 country.

Nishaant BhambraFaculty of Medicine, McGill University, Montreal, QC, Canada.ORCID 0000-0003-4966-6578
Aman P SayalFaculty of Medicine, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-8045-2247
Marko M PopovicDepartment of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-0370-5968
Rajeev H MuniDepartment of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada.
Peter J KertesDepartment of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada. peter.kertes@sunnybrook.ca.
University of Toronto · CAMcGill University · CASt. Michael's Hospital · CASunnybrook Health Science Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesThis meta-analysis investigates the efficacy and safety of intravitreal anti-VEGF injections (IVI) compared to combination laser photocoagulation and IVI (LPC-IVI) in treating macular oedema secondary to retinal vein occlusion (RVO). SUBJECTS/

methodsA literature search of MEDLINE, EMBASE and Cochrane CENTRAL was conducted from inception until March 2021. Randomized controlled trials that reported relevant efficacy and/or safety parameters following LPC-IVI relative to IVI were included. Meta-analysis was conducted with a random effects model. The primary outcome was best-corrected visual acuity (BCVA), while secondary outcomes were central macular thickness (CMT), central retinal thickness (CRT), central subfield thickness (CST), number of IVIs received, and incidence of adverse events.

resultsA total of 10 studies were included, for which 362 eyes were randomized to LPC-IVI and 365 to IVI. In comparing macular laser photocoagulation with IVI (MLP-IVI) in BRVO patients, no significant differences were seen in final BCVA (p = 0.78) or change in BCVA (p = 0.09) after treatment. Similarly, no significant differences were seen in final CMT (p = 0.54), change in CMT (p = 0.33), final CRT (p = 0.90), change in CRT (p = 0.97), or number of injections required (p = 0.78). The same results were seen in subgroup analyses for macular laser without peripheral laser in BRVO and CRVO patients. Consistent results were observed when considering peripheral LPC-IVI to IVI in BRVO and CRVO.

conclusionsNo significant differences were seen between combination MLP-IVI or peripheral LPC-IVI relative to IVI monotherapy for final BCVA or OCT parameters in macular oedema secondary to RVO.

Indexed as

Macular EdemaRetinal Vein OcclusionAngiogenesis InhibitorsEndothelial Growth FactorsHumansIntravitreal InjectionsLaser CoagulationRandomized Controlled Trials as TopicTomography, Optical CoherenceTreatment OutcomeVascular Endothelial Growth Factor AVisual AcuityAngiogenesis InhibitorsEndothelial Growth FactorsVascular Endothelial Growth Factor A

Identifiers

PMID34819660
PMCPMC9674600
OpenAlexW3215985426

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.