Evidence map›Paper›PMID 42374598›Full record

ReviewInternational journal of retina and vitreous2026

Visual electrophysiology in carotid endarterectomy: a systematic review.

Sofia Pacheco-Moreira, João Rocha-Neves, Ana Marta, João Miguel Coelho, João Pinheiro-Costa, José P Andrade, André Ferreira

Abstract readReview
In one paragraph

Review in International journal of retina and vitreous, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Sofia Pacheco-Moreira *Faculty of Medicine, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal. aspmoreira@gmail.com.ORCID http://orcid.org/0009-0007-5136-2828
João Rocha-Neves *Department of Biomedicine - Unit of Anatomy, Faculty of Medicine of University of Porto, Porto, Portugal.ORCID http://orcid.org/0000-0002-2656-8935
Ana MartaDepartment of Ophthalmology, Neurosciences Department, Centro Hospitalar Universitário de Santo António, Unidade Local de Saúde de Santo António, Porto, Portugal.ORCID http://orcid.org/0000-0003-3495-4649
João Miguel CoelhoDepartment of Ophthalmology, Neurosciences Department, Centro Hospitalar Universitário de Santo António, Unidade Local de Saúde de Santo António, Porto, Portugal.ORCID http://orcid.org/0000-0003-2261-5682
João Pinheiro-CostaDepartment of Biomedicine - Unit of Anatomy, Faculty of Medicine of University of Porto, Porto, Portugal.ORCID http://orcid.org/0000-0002-7289-4045
José P AndradeFaculty of Medicine, University of Porto, Al. Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.ORCID http://orcid.org/0000-0003-2585-200X
André FerreiraRISE-Health, Faculdade de Medicina, Universidade do Porto, Alameda Prof. Hernâni Monteiro, Porto, 4200-319, Portugal.ORCID http://orcid.org/0000-0001-8577-5128

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo systematically evaluate changes in ocular electrophysiological function following carotid endarterectomy (CEA) and to determine whether electroretinography (ERG) and visual evoked potentials (VEP) can detect postoperative functional recovery of the retina and visual pathways.

methodsA systematic search of MEDLINE, Scopus, and Web of Science was conducted from inception to August 2025. Observational studies assessing electrophysiological outcomes (ERG, VEP, multifocal recordings, or electrooculography [EOG]) before and after CEA in adults with carotid stenosis were included. Study quality was evaluated using the NHLBI Study Quality Assessment Tools. Due to substantial clinical and methodological heterogeneity, a quantitative synthesis was not performed.

resultsFour prospective observational studies were included, involving 95 patients with predominantly severe carotid stenosis (≥ 70%), with one cohort applying a ≥ 60% threshold. Electrophysiological findings were heterogeneous: VEP parameters generally showed no consistent postoperative improvement, whereas ERG demonstrated significant enhancement of oscillatory potentials and a-/b-waves amplitudes in 3 of the 4 included studies. Visual field indices improved in several cohorts, while structural parameters, particularly retinal nerve fiber layer thickness, remained stable. Changes in intraocular pressure were inconsistently reported. Overall methodological quality indicated a moderate-to-high risk of bias, primarily due to small sample sizes, lack of adjustment for confounders, and variability in electrophysiological protocols.

conclusionThe available evidence, while preliminary and exploratory, suggests a possible association between CEA and postoperative changes in electrophysiological parameters, most notably ERG-derived measures. These findings should be interpreted with considerable caution given the small number of studies, limited sample sizes, and substantial methodological heterogeneity. Whether ocular electrophysiology holds clinical utility in the perioperative assessment of carotid disease remains to be established by larger, adequately powered, and standardized prospective studies.

Indexed as

Carotid artery diseaseCarotid stenosisElectroretinographyRetinal ischemiaVisual electrophysiologyVisual evoked potentials

Identifiers

PMID42374598
PMCPMC13584395

What Socratic holds

Textmetadata
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 Socratic graph.