Evidence map›Paper›PMID 32076560›Full record

ArticleOpen heart2020

Association between hypertension and retinal vascular features in ultra-widefield fundus imaging.

Gavin Robertson, Alan Fleming, Michelle Claire Williams, Emanuele Trucco, Nicola Quinn, Ruth Hogg, Gareth J McKay, Frank Kee, Ian Young, Enrico Pellegrini and 7 more

Open access · goldAbstract read
In one paragraph

Article in Open heart, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Characteristics of laterality in the optic nerve head microcirculation obtained by laser speckle flowgraphy in healthy subjects.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

17 authors at 4 institutions in 1 country.

Gavin RobertsonResearch, Optos plc, Dunfermline, UK.ORCID 0000-0002-9670-930X
Alan FlemingResearch, Optos plc, Dunfermline, UK.
Michelle Claire WilliamsCentre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, Lothian, UK.
Emanuele TruccoThe VAMPIRE Project, Computer Vision and Image Processing Group, School of Science and Engineering, University of Dundee, Dundee, Dundee, UK.
Nicola QuinnCentre for Public Health, Queen's University Belfast, Belfast, Belfast, UK.
Ruth HoggCentre for Public Health, Queen's University Belfast, Belfast, Belfast, UK.
Gareth J McKayCentre for Public Health, Queen's University Belfast, Belfast, Belfast, UK.
Frank KeeCentre for Public Health, Queen's University Belfast, Belfast, Belfast, UK.
Ian YoungCentre for Public Health, Queen's University Belfast, Belfast, Belfast, UK.
Enrico PellegriniResearch, Optos plc, Dunfermline, UK.ORCID 0000-0001-6913-1760
David E NewbyCentre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, Lothian, UK.
Edwin J R van BeekCentre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, Lothian, UK.
Tunde PetoCentre for Public Health, Queen's University Belfast, Belfast, Belfast, UK.
Baljean DhillonThe VAMPIRE Project, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Jano van HemertResearch, Optos plc, Dunfermline, UK.ORCID 0000-0003-0834-7079
Thomas J MacGillivrayEdinburgh Imaging Facility QMRI, University of Edinburgh, Edinburgh, UK.
Northern Ireland Cohort of Longitudinal Ageing
Queen's University Belfast · GBUniversity of Edinburgh · GBDigital Catapult · GBUniversity of Dundee · GB

Funding

Medical Research Council MC_PC_15027Medical Research Council MR/K003364/1
6 · The paper itself

Abstract

Objective: Changes to the retinal vasculature are known to be associated with hypertension independently of traditional risk factors. We investigated whether measurements of retinal vascular calibre from ultra-widefield fundus imaging were associated with hypertensive status. Methods: We retrospectively collected and semiautomatically measured ultra-widefield retinal fundus images from a subset of participants enrolled in an ongoing population study of ageing, categorised as normotensive or hypertensive according to thresholds on systolic/diastolic blood pressure (140/90 mm Hg) measured in a clinical setting. Vascular calibre in the peripheral retina was measured to calculate the nasal-annular arteriole:venule ratio (NA-AVR), a novel combined parameter. Results: Left and right eyes were analysed from 440 participants (aged 50-59 years, mean age of 54.6±2.9 years, 247, 56.1% women), including 151 (34.3%) categorised as hypertensive. Arterioles were thinner and the NA-AVR was smaller in people with hypertension. The area under the receiver operating characteristic curve of NA-AVR for hypertensive status was 0.73 (95% CI 0.68 to 0.78) using measurements from left eyes, while for right eyes, it was 0.64 (95% CI 0.59 to 0.70), representing evidence of a statistically significant difference between the eyes (p=0.020). Conclusions: Semiautomated measurements of NA-AVR in ultra-widefield fundus imaging were associated with hypertension. With further development, this may help screen people attending routine eye health check-ups for high blood pressure. These individuals may then follow a care pathway for suspected hypertension. Our results showed differences between left and right eyes, highlighting the importance of investigating both eyes of a patient.

Indexed as

OphthalmoscopyAutomationBlood PressureFemaleFundus OculiHumansHypertensionImage Interpretation, Computer-AssistedLongitudinal StudiesMaleMiddle AgedPredictive Value of TestsReproducibility of ResultsRetinal DiseasesRetinal VesselsRetrospective Studieshypertensionimaging and diagnosticsmicrovascular disease

Identifiers

PMID32076560
PMCPMC6999694
OpenAlexW2999373591

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.