Evidence map›Paper›PMID 30967575›Full record

ArticleScientific reports2019

Impact of systemic vascular risk factors on the choriocapillaris using optical coherence tomography angiography in patients with systemic hypertension.

Jacqueline Chua, Calvin Woon Loong Chin, Bingyao Tan, Si Han Wong, Kavya Devarajan, Thu-Thao Le, Marcus Ang, Tien Yin Wong, Leopold Schmetterer

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
7.5field-weighted citation impact, top 2% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.

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  16. Hypertensive eye disease.Nature reviews. Disease primers · 2022
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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

9 authors at 4 institutions in 2 countries.

Jacqueline ChuaSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.ORCID http://orcid.org/0000-0002-6474-5293
Calvin Woon Loong ChinAcademic Clinical Program, Duke-NUS Medical School, Singapore, Singapore.
Bingyao TanSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.
Si Han WongSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.
Kavya DevarajanSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.
Thu-Thao LeNational Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore.
Marcus AngSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.
Tien Yin WongSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.
Leopold SchmettererSingapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore. leopold.schmetterer@seri.com.sg.
Singapore National Eye Center · SGNational University of Singapore · SGNanyang Technological University · SGNational Heart Centre Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the characteristics of the choriocapillaris flow voids using optical coherence tomography angiography (OCTA) in 85 patients (164 eyes) with hypertension (mean ± SD age, 56 ± 11 years; 45% women; 20% poorly controlled BP; 16% diabetes) who are without ocular diseases and determined possible correlations with systemic vascular risk factors. Data on 24-hour ambulatory blood pressure (BP), serum creatinine, and urine microalbumin/creatinine ratio (MCR) were collected. Estimated glomerular filtration rate (eGFR) was calculated based on CKD-EPI Creatinine Equation. OCTA imaging (6 × 6 mm scans; AngioVue) with quantitative microvascular analysis of the choriocapillaris was performed. Linear regression was used to investigate the association of systemic risk factors with area (percentage), size (pixels) and number of choriocapillaris flow voids. Diabetes (β = 0.33; 95% CI, 0.02 to 0.63) and daytime systolic BP (β = -0.13; 95% CI, -0.24 to -0.02) were associated with areas of flow voids. Age (β = 0.21; 95% CI, 0.06 to 0.36) and daytime diastolic BP (β = -0.18; 95% CI, -0.34 to -0.02) were associated with size of flow voids. Age (β = -21.21; 95% CI, -31.79 to -10.63) and nighttime diastolic BP (β = 13.89; 95% CI, 0.61 to 27.17) were associated with number of flow voids. Kidney parameters were not associated with any features of flow voids. In patients with hypertension, a higher BP appeared to increase blood flow in the choriocapillaris which needs to be considered when using the OCTA to study eye diseases in hypertensives.

Indexed as

AlbuminuriaBlood Flow VelocityBlood PressureBlood Pressure Monitoring, AmbulatoryChoroidComputed Tomography AngiographyCreatinineEye DiseasesFemaleGlomerular Filtration RateHumansHypertensionMacular DegenerationMaleMiddle AgedRisk FactorsCreatinine

Identifiers

PMID30967575
PMCPMC6456612
OpenAlexW2938270359

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.