Evidence map›Paper›PMID 37493668›Full record

ArticleBMJ open ophthalmology2023

Swept-source optical coherence tomography angiography metrics of retinal ischaemic perivascular lesions in patients being evaluated for carotid artery stenosis and controls.

Michael Drakopoulos, David L Zhang, Brian T Cheng, Saena Arifeen Sadiq, Arnold Nadel, Alessandro Marchese, Mark Eskandari, Rukhsana G Mirza

Abstract read
In one paragraph

Article in BMJ open ophthalmology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

8 authors.

Michael DrakopoulosDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.ORCID 0000-0001-8219-5136
David L ZhangDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Brian T ChengDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Saena Arifeen SadiqDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Arnold NadelDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Alessandro MarcheseDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Mark EskandariDepartment of Surgery, Division of Vascular Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
Rukhsana G MirzaDepartment of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA r-mirza@northwestern.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsRetinal microvascular ischaemia may produce localised middle retinal disruption with corresponding scotoma, a phenomenon termed paracentral acute middle maculopathy (PAMM). Small chronic middle retinal atrophic lesions termed retinal ischaemic perivascular lesions (RIPLs) appear qualitatively similar to PAMM lesions and have recently been hypothesised to result specifically from PAMM. However, no studies have quantitatively demonstrated an ischaemic origin of RIPLs. We quantitatively investigated the pathophysiology of RIPLs and their relationship with PAMM with swept-source optical coherence tomography angiography (SS-OCTA).

methodsA total of 14 controls and 25 patients being evaluated for carotid artery stenosis (CAS) were enrolled. SS-OCTA imaging of each eye was taken. Projection-resolved en face 6 mm × 6 mm superficial capillary plexus (SCP) and deep capillary plexus (DCP) images were quantitatively analysed with two algorithms for changes in vessel linear density (VLD) and vessel tortuosity (VT) at RIPLs relative to both the immediately surrounding macula and the entire macula, as well as between eyes with RIPLs and eyes without RIPLs.

resultsAll controls and 22 of 25 CAS patients were included in the analysis. RIPLs demonstrated a localised decrease in DCP VLD in CAS patients and controls. RIPLs tended to show a localised decrease in SCP VLD in CAS patients but a localised increase in controls. No changes in VT were found. Eyes with RIPLs had VLD and VT similar to their RIPL-free fellow eyes.

conclusionRIPLs are associated with quantifiable local, but not global, ischaemia, supporting the idea of shared pathophysiology with classic PAMM lesions along a continuum of ischaemia severity.

Indexed as

Carotid StenosisRetinal DegenerationFluorescein AngiographyHumansIschemiaRetinal VesselsTomography, Optical CoherenceImagingMaculaPathologyRetina

Identifiers

PMID37493668
PMCPMC10357701

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