Evidence map›Paper›PMID 29149177›Full record

ArticlePloS one2017

New brain lesions with no impact on physical disability can impact cognition in early multiple sclerosis: A ten-year longitudinal study.

D Wybrecht, F Reuter, F Pariollaud, W Zaaraoui, A Le Troter, A Rico, S Confort-Gouny, E Soulier, M Guye, A Maarouf and 3 more

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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

  1. Pooled it
  2. Article
  3. Evaluation of a self-administered iPadJournal of neurology · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Recommendations for cognitive screening and management in multiple sclerosis care.Multiple sclerosis (Houndmills, Basingstoke, England) · 2018
    Review
  11. Review
  12. Review
  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

13 authors.

D WybrechtAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.ORCID http://orcid.org/0000-0003-0397-177X
F ReuterAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
F PariollaudAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
W ZaaraouiAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
A Le TroterAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
A RicoAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
S Confort-GounyAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
E SoulierAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
M GuyeAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
A MaaroufAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
J-P RanjevaAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
J PelletierAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.
B AudoinAix-Marseille Université, CNRS, CRMBM UMR 7339, Marseille, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIn early multiple sclerosis, although brain T2 lesions accrual are hallmark of the disease, only weak correlations were found between T2 lesions accrual and EDSS progression, the disability scale commonly used in multiple sclerosis studies. This may be related to the very poor sensitivity of EDSS to cognitive dysfunctions that may occur and progress from the first stage of the disease. In the present study, we aimed to demonstrate that cognitive deficits progress during the first ten years of MS and are significantly impacted by new T2 lesions.

methodsEDSS and extensive neuropsychological battery (22 measures) exploring memory, attention/speed of information processing and executive functions were assessed at baseline, Year 1 and Year 10 in 26 patients enrolled after their first clinical attack. To limit the bias of test-retest effect, only measures obtained at Year 1 and Year 10 were reported in the analysis. Raw scores of patients were transformed into z-scores using published normative data when available or scores of matched controls. Lesion probability mapping was used to assess the potential relationships between T2 lesions accumulation, cognitive decline and EDSS progression (P<0.05, FWE-corrected).

resultsAt Year 1, 27% of patients showed attention/speed of information processing deficits, 11.5% executive dysfunction and 11.5% memory impairment. During the follow-up, frequency and severity of executive dysfunction increased (from 11.5% of patients at Year 1 to 42% at Year 10, p<0.01) while no significant changes were evidenced for the other cognitive domains. Median EDSS increased from 0.5 [range: 0-3] at Year 1 to 2.5 [range: 0-6.5] at Year 10 (p<0.001). During the ten-year follow-up, lesions accumulation in the left cerebellum and semi-ovale centers was associated with EDSS progression. In contrast, most lesions accumulation in the frontal, parietal and temporal lobes were associated with cognitive decline but had no effect on EDSS progression.

conclusionThe present study provides strong evidence that clinically silent T2 lesions impact cognition in early MS. In daily practice, early prevention of T2 lesions accrual may be useful to limit cognitive decline.

Indexed as

AdolescentAdultCognition DisordersFemaleHumansLongitudinal StudiesMaleMiddle AgedMultiple Sclerosis, Relapsing-RemittingNeuropsychological TestsYoung Adult

Identifiers

PMID29149177
PMCPMC5693435

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.