Evidence map›Paper›PMID 32620686›Full record

Observational studyThe British journal of ophthalmology2021

Changes in choroidal structure following intravitreal aflibercept therapy for retinal vein occlusion.

Yoshinori Mitamura, Tserennadmid Enkhmaa, Hiroki Sano, Masanori Niki, Fumiko Murao, Mariko Egawa, Shozo Sonoda, Taiji Sakamoto

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in The British journal of ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
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  5. Investigation of choroidal structure changes after intravitreal anti-VEGF therapy for retinal vein occlusion.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  6. Article
  7. Article
  8. Changes in choriocapillaris structure occurring in idiopathic macular hole before and after vitrectomy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Observational
  9. Article
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  12. Review
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  16. 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

8 authors at 2 institutions in 1 country.

Yoshinori Mitamura *Department of Ophthalmology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan ymitaymitaymita@yahoo.co.jp.ORCID 0000-0002-4813-672X
Tserennadmid Enkhmaa *Department of Ophthalmology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Hiroki SanoDepartment of Ophthalmology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Masanori NikiDepartment of Ophthalmology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Fumiko MuraoDepartment of Ophthalmology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Mariko EgawaDepartment of Ophthalmology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
Shozo SonodaJapan Clinical Retina Study Group (J-CREST Group), Kagoshima, Japan.
Taiji SakamotoJapan Clinical Retina Study Group (J-CREST Group), Kagoshima, Japan.ORCID 0000-0003-0287-3801
Tokushima University · JPKagoshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo examine the choroidal change accompanying retinal vein occlusion (RVO) in detail, we measured changes in choroidal structure after intravitreal aflibercept (IVA) injections for RVO using binarisation of enhanced depth imaging optical coherence tomographic (EDI-OCT) images and assessed associations with clinical outcome.

methodsRetrospective, observational case series. Forty treatment-naïve patients (10 central, 18 major branch and 12 macular branch RVO) were examined by EDI-OCT before and 1, 3 and 6 months after IVA injections. EDI-OCT images were binarised using ImageJ. Subfoveal cross-sectional areas of the luminal, stromal and total choroid over a 1500 µm span were measured and the stromal area to total choroidal area (S/C) ratio was calculated.

resultsCompared to normal contralateral eyes, afflicted eyes at baseline exhibited significantly greater stromal area (p<0.001), total choroidal area (p=0.001) and S/C ratio (p<0.001), but no difference in luminal area (p=0.083). The stromal area, S/C ratio and total choroidal area were significantly reduced in afflicted eyes at 1, 3 and 6 months after IVA (all p<0.006). Baseline S/C ratio was significantly correlated with baseline visual acuity (VA), baseline central retinal thickness (CRT) and VA and CRT improvement at 1, 3 and 6 months post-treatment even after adjusting for the axial length, age and sex (all p<0.012).

conclusionRVO induces substantial oedema of the choroidal stromal area that is detectable by binarisation of EDI-OCT images. This stromal oedema likely stems from high intraocular vascular endothelial growth factor levels. Changes in choroidal structure may be used to assess severity and prognosis of RVO.

Indexed as

Visual AcuityAdultAgedAged, 80 and overAngiogenesis InhibitorsChoroidFemaleFluorescein AngiographyFundus OculiHumansIntravitreal InjectionsMaleMiddle AgedReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsRetinal Vein OcclusionafliberceptAngiogenesis InhibitorsReceptors, Vascular Endothelial Growth FactorRecombinant Fusion ProteinsVascular Endothelial Growth Factor AAngiogenesisChoroidCosmesisImagingImmunologyInflammationMaculaRetinaTreatment Medical

Identifiers

PMID32620686
PMCPMC8077220
OpenAlexW3040579336

What OpenQuestion holds

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LicenceCC BY-NC
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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.