Evidence map›Paper›PMID 33743610›Full record

ArticleBMC ophthalmology2021

Risk factors for repeated dexamethasone intravitreal implant therapy for macular edema due to treatment-naïve branch retinal vein occlusion.

Yu-Te Huang, Chun-Ju Lin, Huan-Sheng Chen, Peng-Tai Tien, Chun-Ting Lai, Ning-Yi Hsia, Jane-Ming Lin, Wen-Lu Chen, Yi-Yu Tsai

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 37% 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, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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

9 authors at 3 institutions in 1 country.

Yu-Te HuangDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
Chun-Ju LinDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447. doctoraga@gmail.com.
Huan-Sheng ChenAn-Shin Dialysis Center, NephroCare Ltd., Fresenius Medical Care, Taichung, Taiwan.
Peng-Tai TienDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
Chun-Ting LaiDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
Ning-Yi HsiaDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
Jane-Ming LinDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
Wen-Lu ChenDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
Yi-Yu TsaiDepartment of Ophthalmology, China Medical University Hospital, 2 Yuh-Der Road, Taichung City, Taiwan, 40447.
China Medical University · TWChina Medical University Hospital · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study evaluated the effects of dexamethasone intravitreal implant on treatment-naïve branch retinal vein occlusion (BRVO)-induced macular edema (ME), and the risk factors for earlier repeated treatment.

methodsPatients treated from 2013 to 2016 were enrolled. The patients' demographics, medical history, best-corrected visual acuity (BCVA), and central retinal thickness (CRT) were recorded. Risk factors for repeated treatment were identified using a Cox proportional hazard model and logistic regression.

results29 patients (mean age: 58.64 ± 13.3 years) were included; 44.8% received only one injection, while 55.2% received two or more. The mean initial CRT was 457.8 ± 167.1 μm; the peak CRT and final CRT improved significantly to 248.9 ± 57.9 μm and 329.2 ± 115.1 μm, respectively. The peak BCVA improvement and final improvement were 29.5 ± 23.5 approximate ETDRS letters and 19.8 ± 24.4 letters, respectively, with 62.1% of patients improving by more than 15 letters. Older age, higher initial CRT, and diabetes were the risk factors for multiple injections.

conclusionDexamethasone intravitreal implant results in significant peak CRT and BCVA improvements, while older age, higher initial CRT, and diabetes are risk factors for repeated injections. The optimal retreatment schedule for these patients should be further explored.

Indexed as

Macular EdemaRetinal Vein OcclusionAgedDexamethasoneDrug ImplantsGlucocorticoidsHumansIntravitreal InjectionsMiddle AgedRisk FactorsTomography, Optical CoherenceTreatment OutcomeVisual AcuityDexamethasoneDrug ImplantsGlucocorticoidsAgeBranch retinal vein occlusionCentral retinal thicknessDexamethasone intravitreal implantDiabetesMacular edema

Identifiers

PMID33743610
PMCPMC7981849
OpenAlexW3137286897

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.