Evidence map›Paper›PMID 35109797›Full record

ArticleBMC ophthalmology2022

Treatment responses for branch retinal vein occlusion predicted by semi-automated fluorescein angiography quantification.

Pei-Wei Huang, Chi-Chun Lai, Yih-Shiou Hwang, Wei-Chi Wu, Cheng-Hsiu Wu, Jerry Chien-Chieh Huang, Yen-Po Chen, Laura Liu, Kuan-Jen Chen, Ling Yeung

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Relationship between ischemic index, leakage index, and macular edema in branch retinal vein occlusion.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  5. Review
  6. 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

10 authors at 3 institutions in 1 country.

Pei-Wei HuangDepartment of Ophthalmology, Keelung Chang Gung Memorial Hospital, No. 222, Maijin Road, Keelung, 204, Taiwan.
Chi-Chun LaiDepartment of Ophthalmology, Keelung Chang Gung Memorial Hospital, No. 222, Maijin Road, Keelung, 204, Taiwan.
Yih-Shiou HwangDepartment of Ophthalmology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Wei-Chi WuDepartment of Ophthalmology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Cheng-Hsiu WuDepartment of Ophthalmology, Keelung Chang Gung Memorial Hospital, No. 222, Maijin Road, Keelung, 204, Taiwan.
Jerry Chien-Chieh HuangDepartment of Ophthalmology, Keelung Chang Gung Memorial Hospital, No. 222, Maijin Road, Keelung, 204, Taiwan.
Yen-Po ChenDepartment of Ophthalmology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Laura LiuDepartment of Ophthalmology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Kuan-Jen ChenDepartment of Ophthalmology, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Ling YeungCollege of Medicine, Chang Gung University, Taoyuan, Taiwan. lingyeung@gmail.com.
Linkou Chang Gung Memorial Hospital · TWKeelung Chang Gung Memorial Hospital · TWChang Gung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundsBranch retinal vein occlusion (BRVO) is one of the most important causes of visual loss in retinal vascular diseases. The aim of this study is to predict the treatment response of anti-vascular endothelial growth factor (anti-VEGF) therapy in BRVO using semi-automated quantified fluorescein angiography (FA) features.

methodsThis retrospective case-control study enrolled patients with BRVO who are receiving anti-VEGF therapy and have been followed up for > 1 year. Those receiving < 5 anti-VEGF injections in the first year were classified as the responsive group, while those receiving ≥5 injections were the refractory group. The FA images were subjected to semi-automated pre-processing. Fluorescein leakages at the 5-min image were represented by mean gray value over parafoveal and perifoveal regions. FA leakages and central retinal thickness (CRT) on optical coherence tomography (OCT) were used for predicting the treatment response and compared using area under receiver operating characteristic curve (AUC).

resultsEighty-nine patients (56 males, 33 females, mean age 62.5 ± 10.9 years) with BRVO were enrolled. Of the 89 eyes, 47 (53%) were in the responsive group and 42 (47%) were in the refractory group. The refractory group had a significantly higher number of anti-VEGF injections in the first year (5.9 ± 1.6 versus 2.4 ± 1.2, p < 0.001) when compared with that of the responsive group. It had thicker pre-treatment CRT (p = 0.011), post-treatment best CRT (p < 0.001) and CRT at 1-year (p < 0.001). It also had a higher mean gray value over the parafoveal (p < 0.001) and the perifoveal (p < 0.001) regions. The mean gray value over perifoveal (AUC 0.846) and parafovel (AUC 0.818) had significantly larger AUC than that of the pre-treatment OCT (AUC 0.653; p = 0.005 and p = 0.016, respectively) when predicting treatment response.

conclusionThe refractory group had a more severe fluorescein leakage over the parafoveal and the perifoveal regions than the responsive group had. Semi-automated quantified FA leakage can be used as a biomarker for the prediction of anti-VEGF treatment response in macular edema due to BRVO.

Indexed as

Retinal Vein OcclusionAgedCase-Control StudiesFemaleFluorescein AngiographyHumansMaleMiddle AgedRetinaRetrospective StudiesAnti-VEGFBranched retinal vein occlusionFluorescence angiographyMacular edema

Identifiers

PMID35109797
PMCPMC8811993
OpenAlexW4210593047

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.