Evidence map›Paper›PMID 34130654›Full record

Observational studyBMC ophthalmology2021

Quantitative analysis of retinal vessel density and thickness changes in diabetes mellitus evaluated using optical coherence tomography angiography: a cross-sectional study.

Xinyue Li, Yu Yu, Xueting Liu, Yan Shi, Xin Jin, Yanyan Zhang, Shuo Xu, Nan Zhang, Li Dong, Sujun Zhou and 4 more

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

20 citing papers in PubMed, 27 citations in OpenAlex.

  1. Observational
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  17. Observational
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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

14 authors at 2 institutions in 1 country.

Xinyue LiEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Yu YuEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Xueting LiuEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Yan ShiEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Xin JinEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Yanyan ZhangEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Shuo XuEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Nan ZhangEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Li DongEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Sujun ZhouEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Yingbin WangEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Yiheng DingEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Zhen SongEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
Hong ZhangEye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, China. zhanghong@hrbmu.edu.cn.
First Affiliated Hospital of Harbin Medical University · CNHarbin Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiabetic retinopathy is the most common microvascular complication of diabetes; however, early changes in retinal microvessels are difficult to detect clinically, and a patient's vision may have begun to deteriorate by the time a problem is identified. Optical coherence tomography angiography (OCTA) is an innovative tool for observing capillaries in vivo. The aim of this study was to analyze retinal vessel density and thickness changes in patients with diabetes.

methodsThis was a retrospective, observational cross-sectional study. Between August 2018 and February 2019, we collected OCTA data from healthy participants and diabetics from the First Affiliated Hospital of Harbin Medical University. Analyzed their retinal vessel density and thickness changes.

resultsA total of 97 diabetic patients with diabetes at different severity stages of diabetic retinopathy and 85 controls were involved in the experiment. Diabetic patients exhibited significantly lower retinal VD (particularly in the deep vascular complexes), thickening of the neurosensory retina, and thinning of the retinal pigment epithelium compared with controls. In the control group, nondiabetic retinopathy group and mild diabetic retinopathy group, superficial VD was significantly correlated with retinal thickness (r = 0.3886, P < 0.0001; r = 0.3276, P = 0.0019; r = 0.4614, P = 0.0024, respectively).

conclusionsPatients with diabetes exhibit ischemia of the retinal capillaries and morphologic changes in vivo prior to vision loss. Therefore, OCTA may be useful as a quantitative method for the early detection of diabetic retinopathy.

Indexed as

Diabetes MellitusDiabetic RetinopathyCross-Sectional StudiesFluorescein AngiographyFundus OculiHumansRetinal VesselsRetrospective StudiesTomography, Optical CoherenceDiabetic retinopathyOCTARetinal thicknessVessel density

Identifiers

PMID34130654
PMCPMC8207746
OpenAlexW3167646782

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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.