Evidence map›Paper›PMID 29656189›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2018

Quantitative electroencephalography as a marker of cognitive fluctuations in dementia with Lewy bodies and an aid to differential diagnosis.

Myrto Stylianou, Nicholas Murphy, Luis R Peraza, Sara Graziadio, Ruth Cromarty, Alison Killen, John T O' Brien, Alan J Thomas, Fiona E N LeBeau, John-Paul Taylor

Open access · hybridAbstract read
In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 4 pooled it
4.6field-weighted citation impact, top 5% 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

34 citing papers in PubMed, 4 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Diagnostic utility of electrophysiological markers for early and differential diagnosis of Alzheimer's, Frontotemporal, and Lewy Body dementias: A systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Pooled it
  3. Electroencephalogram in dementia with Lewy bodies: a systematic review.Aging clinical and experimental research · 2021
    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

10 authors at 3 institutions in 1 country.

Myrto StylianouInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: M.Stylianou2@ncl.ac.uk.
Nicholas MurphyInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: Nicholas.Murphy@bcm.edu.
Luis R PerazaInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: luis.peraza-rodriguez@ncl.ac.uk.
Sara GraziadioNIHR Newcastle In Vitro Diagnostics Co-operative, Newcastle Upon Tyne Hospitals Foundation Trust, Newcastle upon Tyne, UK. Electronic address: sara.graziadio@ncl.ac.uk.
Ruth CromartyInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: Ruth.Cromarty@ncl.ac.uk.
Alison KillenInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: alison.killen@ncl.ac.uk.
John T O' BrienDepartment of Psychiatry, University of Cambridge, Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK. Electronic address: john.obrien@medschl.cam.ac.uk.
Alan J ThomasInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: alan.thomas@ncl.ac.uk.
Fiona E N LeBeauInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: fiona.lebeau@ncl.ac.uk.
John-Paul TaylorInstitute of Neuroscience, Newcastle University Medical School, Newcastle University, Newcastle upon Tyne, UK. Electronic address: john-paul.taylor@ncl.ac.uk.
Newcastle University · GBNewcastle upon Tyne Hospitals NHS Foundation Trust · GBUniversity of Cambridge · GB

Funding

Department of Health MIC-2016-014Medical Research Council G0400074Medical Research Council G0502157Medical Research Council G0900652Medical Research Council G1100540Wellcome TrustWellcome Trust BH120812Wellcome Trust BH120878
6 · The paper itself

Abstract

objectiveWe investigated for quantitative EEG (QEEG) differences between Alzheimer's disease (AD), dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD) patients and healthy controls, and for QEEG signatures of cognitive fluctuations (CFs) in DLB.

methodsWe analysed eyes-closed, resting state EEGs from 18 AD, 17 DLB and 17 PDD patients with mild dementia, and 21 age-matched controls. Measures included spectral power, dominant frequency (DF), frequency prevalence (FP), and temporal DF variability (DFV), within defined EEG frequency bands and cortical regions.

resultsDLB and PDD patients showed a leftward shift in the power spectrum and DF. AD patients showed greater DFV compared to the other groups. In DLB patients only, greater DFV and EEG slowing were correlated with CFs, measured by the clinician assessment of fluctuations (CAF) scale. The diagnostic accuracy of the QEEG measures was 94% (90.4-97.9%), with 92.26% (80.4-100%) sensitivity and 83.3% (73.6-93%) specificity.

conclusionAlthough greater DFV was only shown in the AD group, within the DLB group a positive DFV - CF correlation was found. QEEG measures could classify DLB and AD patients with high sensitivity and specificity. SIGNIFICANCE: The findings add to an expanding literature suggesting that EEG is a viable diagnostic and symptom biomarker in dementia, particularly DLB.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBrainCognitionDiagnosis, DifferentialElectroencephalographyFemaleHumansLewy Body DiseaseMaleParkinson DiseaseSensitivity and SpecificityAlzheimer's diseaseCognitive fluctuationsDementia with Lewy bodiesParkinson's disease dementiaQuantitative electroencephalography

Identifiers

PMID29656189
PMCPMC5954167
OpenAlexW2795901230

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.