Evidence map›Paper›PMID 29026971›Full record

ArticleEuropean radiology2018

Is impaired cerebral vasoreactivity an early marker of cognitive decline in multiple sclerosis patients?

Aude Metzger, Emmanuelle Le Bars, Jeremy Deverdun, François Molino, Bénédicte Maréchal, Marie-Christine Picot, Xavier Ayrignac, Clarisse Carra, Luc Bauchet, Alexandre Krainik and 2 more

Open access · greenAbstract readControlled Clinical Trial
PubMed Publisher
In one paragraph

Article in European radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
1.5field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Impaired cerebrovascular reactivity is associated with disability and cognitive performance in relapsing-remitting multiple sclerosis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Observational
  5. Cognitive impairment in multiple sclerosis: from phenomenology to neurobiological mechanisms.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
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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

12 authors at 6 institutions in 2 countries.

Aude MetzgerDepartment of Neurology, University Hospital Center, Gui de Chauliac Hospital, Montpellier, France. audemetzger2@gmail.com.ORCID http://orcid.org/0000-0002-7318-8425
Emmanuelle Le BarsDépartement de Neuroradiologie, Hôpital Gui de Chauliac, Centre Hospitalier Régional Universitaire de Montpellier, Montpellier, France.
Jeremy DeverdunDépartement de Neuroradiologie, Hôpital Gui de Chauliac, Centre Hospitalier Régional Universitaire de Montpellier, Montpellier, France.
François MolinoLaboratoire Charles Coulomb, CNRS UMR 5221, Université de Montpellier, Montpellier, France.
Bénédicte MaréchalAdvanced Clinical Imaging Technology, Siemens Healthcare, HC CEMEA SUI DI, Lausanne, PI, Switzerland.
Marie-Christine PicotDépartement de Biostatistiques, Centre Hospitalier Régional Universitaire de Montpellier, Montpellier, France.
Xavier AyrignacDepartment of Neurology, University Hospital Center, Gui de Chauliac Hospital, Montpellier, France.
Clarisse CarraDepartment of Neurology, University Hospital Center, Gui de Chauliac Hospital, Montpellier, France.
Luc BauchetDépartement de Neurochirurgie, Hôpital Gui de Chauliac, Centre Hospitalier Régional Universitaire de Montpellier, Montpellier, France.
Alexandre KrainikMR Unit CS 10217, University Hospital of Grenoble, Grenoble, France.
Pierre LabaugeDepartment of Neurology, University Hospital Center, Gui de Chauliac Hospital, Montpellier, France.
Nicolas Menjot de ChampfleurDépartement de Neuroradiologie, Hôpital Gui de Chauliac, Centre Hospitalier Régional Universitaire de Montpellier, Montpellier, France.
Centre National de la Recherche Scientifique · FRHôpital Gui de Chauliac · FRCentre Hospitalier Universitaire de Grenoble · FRCentre Hospitalier Universitaire de Montpellier · FRHôpital Orthopédique de la Suisse Romande · CHInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe link between cerebral vasoreactivity and cognitive status in multiple sclerosis remains unclear. The aim of the present study was to investigate a potential decrease of cerebral vasoreactivity in multiple sclerosis patients and correlate it with cognitive status.

methodsThirty-three patients with multiple sclerosis (nine progressive and 24 remitting forms, median age: 39 years, 12 males) and 22 controls underwent MRI with a hypercapnic challenge to assess cerebral vasoreactivity and a neuropsychological assessment. Cerebral vasoreactivity, measured as the cerebral blood flow percent increase normalised by end-tidal carbon dioxide variation, was assessed globally and by regions of interest using the blood oxygen level-dependent technique. Non-parametric statistics tests were used to assess differences between groups, and associations were estimated using linear models.

resultsCerebral vasoreactivity was lower in patients with cognitive impairment than in cognitively normal patients (p=0.004) and was associated with education level in patients (R

conclusionsCognitive impairment in multiple sclerosis may be mediated through decreased cerebral vasoreactivity. Cerebral vasoreactivity could therefore be considered as a marker of cognitive decline in multiple sclerosis. KEY POINTS: • Cerebral vasoreactivity does not differ between multiple sclerosis patients and controls. • Cerebral vasoreactivity measure is linked to cognitive impairment in multiple sclerosis. • Cerebral vasoreactivity is linked to level of education in multiple sclerosis.

Indexed as

AdultBrainCerebrovascular CirculationCognitionCognitive DysfunctionFemaleFunctional NeuroimagingHumansMagnetic Resonance ImagingMaleMiddle AgedMultiple Sclerosis, Relapsing-RemittingNeuropsychological TestsProspective StudiesVasodilationBrain mappingCerebrovascular circulationFunctional neuroimagingMagnetic resonance imagingMultiple sclerosis

Identifiers

PMID29026971
OpenAlexW2762547992

What OpenQuestion 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 OpenQuestion graph.