Evidence map›Paper›PMID 27625987›Full record

ArticleNeuroImage. Clinical2016

Fluctuations of spontaneous EEG topographies predict disease state in relapsing-remitting multiple sclerosis.

Markus Gschwind, Martin Hardmeier, Dimitri Van De Ville, Miralena I Tomescu, Iris-Katharina Penner, Yvonne Naegelin, Peter Fuhr, Christoph M Michel, Margitta Seeck

Abstract read
In one paragraph

Article in NeuroImage. Clinical, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing 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

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

  1. Pooled it
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  15. EEG Microstate as a Marker of Adolescent Idiopathic Scoliosis.IEEE open journal of engineering in medicine and biology · 2024
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  17. The effect of acupuncture at theFrontiers in integrative neuroscience · 2023
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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

9 authors.

Markus GschwindDepartment of Neurology, University Hospital Geneva, Geneva, Switzerland; Functional Brain Mapping Laboratory, Department of Neuroscience, Biotech Campus, University of Geneva, Geneva, Switzerland.
Martin HardmeierNeurologic Clinic and Policlinic and Clinical Neurophysiology, Departments of Medicine and Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland.
Dimitri Van De VilleDepartment of Radiology, Center for Biomedical Imaging, University Hospital Geneva, Geneva, Switzerland; Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; Center for Biomedical Imaging, Lausanne and Geneva, Switzerland.
Miralena I TomescuFunctional Brain Mapping Laboratory, Department of Neuroscience, Biotech Campus, University of Geneva, Geneva, Switzerland.
Iris-Katharina PennerDepartment of Cognitive Psychology and Methodology, University of Basel, Basel, Switzerland.
Yvonne NaegelinNeurologic Clinic and Policlinic and Clinical Neurophysiology, Departments of Medicine and Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland.
Peter FuhrNeurologic Clinic and Policlinic and Clinical Neurophysiology, Departments of Medicine and Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland.
Christoph M MichelFunctional Brain Mapping Laboratory, Department of Neuroscience, Biotech Campus, University of Geneva, Geneva, Switzerland; Center for Biomedical Imaging, Lausanne and Geneva, Switzerland.
Margitta SeeckDepartment of Neurology, University Hospital Geneva, Geneva, Switzerland; Functional Brain Mapping Laboratory, Department of Neuroscience, Biotech Campus, University of Geneva, Geneva, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spontaneous fluctuations of neuronal activity in large-scale distributed networks are a hallmark of the resting brain. In relapsing-remitting multiple sclerosis (RRMS) several fMRI studies have suggested altered resting-state connectivity patterns. Topographical EEG analysis reveals much faster temporal fluctuations in the tens of milliseconds time range (termed "microstates"), which showed altered properties in a number of neuropsychiatric conditions. We investigated whether these microstates were altered in patients with RRMS, and if the microstates' temporal properties reflected a link to the patients' clinical features. We acquired 256-channel EEG in 53 patients (mean age 37.6 years, 45 females, mean disease duration 9.99 years, Expanded Disability Status Scale ≤ 4, mean 2.2) and 49 healthy controls (mean age 36.4 years, 33 females). We analyzed segments of a total of 5 min of EEG during resting wakefulness and determined for both groups the four predominant microstates using established clustering methods. We found significant differences in the temporal dynamics of two of the four microstates between healthy controls and patients with RRMS in terms of increased appearance and prolonged duration. Using stepwise multiple linear regression models with 8-fold cross-validation, we found evidence that these electrophysiological measures predicted a patient's total disease duration, annual relapse rate, disability score, as well as depression score, and cognitive fatigue measure. In RRMS patients, microstate analysis captured altered fluctuations of EEG topographies in the sub-second range. This measure of high temporal resolution provided potentially powerful markers of disease activity and neuropsychiatric co-morbidities in RRMS.

Indexed as

Brain MappingElectroencephalographyAdultBrain WavesFemaleHumansLinear ModelsMagnetic Resonance ImagingMaleMiddle AgedMultiple Sclerosis, Relapsing-RemittingNeuropsychological TestsOxygenPredictive Value of TestsPsychiatric Status Rating ScalesOxygenAnnual relapse rateCenter for Epidemiologic Studies Depression ScaleDisease durationExpanded Disability Status ScaleFatigue Scale for Motor and Cognitive FunctionsHigh-density EEGMicrostatesTopographical EEG analysis

Identifiers

PMID27625987
PMCPMC5011177

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Registered trials

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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.