Evidence map›Paper›PMID 30809977›Full record

ArticleBrain and behavior2019

Understanding cognitive functioning in glioma patients: The relevance of IDH-mutation status and functional connectivity.

Jolanda Derks, Shanna Kulik, Pieter Wesseling, Tianne Numan, Arjan Hillebrand, Edwin van Dellen, Philip C de Witt Hamer, Jeroen J G Geurts, Jaap C Reijneveld, Cornelis J Stam and 2 more

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In one paragraph

Article in Brain and behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

  1. Factors affecting cognitive functions of patients with high-grade gliomas: a systematic review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 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

12 authors at 4 institutions in 2 countries.

Jolanda DerksDepartment of Anatomy & Neurosciences, VU University Medical Center, Amsterdam, The Netherlands.ORCID 0000-0002-4300-5579
Shanna KulikDepartment of Anatomy & Neurosciences, VU University Medical Center, Amsterdam, The Netherlands.
Pieter WesselingVUmc CCA Brain Tumor Center Amsterdam, Amsterdam, The Netherlands.
Tianne NumanDepartment of Anatomy & Neurosciences, VU University Medical Center, Amsterdam, The Netherlands.
Arjan HillebrandDepartment of Clinical Neurophysiology and MEG Center, VU University Medical Center, Amsterdam, The Netherlands.
Edwin van DellenDepartment of Psychiatry, University Medical Center Utrecht, Utrecht, The Netherlands.
Philip C de Witt HamerVUmc CCA Brain Tumor Center Amsterdam, Amsterdam, The Netherlands.
Jeroen J G GeurtsDepartment of Anatomy & Neurosciences, VU University Medical Center, Amsterdam, The Netherlands.
Jaap C ReijneveldVUmc CCA Brain Tumor Center Amsterdam, Amsterdam, The Netherlands.
Cornelis J StamDepartment of Clinical Neurophysiology and MEG Center, VU University Medical Center, Amsterdam, The Netherlands.
Martin KleinVUmc CCA Brain Tumor Center Amsterdam, Amsterdam, The Netherlands.
Linda DouwDepartment of Anatomy & Neurosciences, VU University Medical Center, Amsterdam, The Netherlands.
Amsterdam Neuroscience · NLAmsterdam UMC Location Vrije Universiteit Amsterdam · NLUniversity Medical Center Utrecht · NLMassachusetts General Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCognitive deficits occur frequently in diffuse glioma patients, but are limitedly understood. An important marker for survival in these patients is isocitrate dehydrogenase (IDH) mutation (IDH-mut). Patients with IDH-mut glioma have a better prognosis but more often suffer from epilepsy than patients with IDH-wildtype (IDH-wt) glioma, who are generally older and more often have cognitive deficits. We investigated whether global brain functional connectivity differs between patients with IDH-mut and IDH-wt glioma, and whether this measure reflects variations in cognitive functioning in these subpopulations beyond the associated differences in age and presence of epilepsy.

methodsWe recorded magnetoencephalography and tested cognitive functioning in 54 diffuse glioma patients (31 IDH-mut, 23 IDH-wt). Global functional connectivity between 78 atlas regions spanning the entire cortex was calculated in two frequency bands (theta and alpha). Group differences in global functional connectivity were tested, as was their association with cognitive functioning, controlling for age, education, and presence of epilepsy.

resultsPatients with IDH-wt glioma had lower functional connectivity in the alpha band than patients with IDH-mut glioma (p = 0.040, corrected for age and presence of epilepsy). Lower alpha band functional connectivity was associated with poorer cognitive performance (p < 0.034), corrected for age, education, and presence of epilepsy.

conclusionGlobal functional connectivity is lower in patients with IDH-wt diffuse glioma compared to patients with IDH-mut diffuse glioma. Moreover, having lower functional alpha connectivity relates to poorer cognitive performance in patients with diffuse glioma, regardless of age, education, and presence of epilepsy.

Indexed as

AdultBrainBrain NeoplasmsCognitionCognitive DysfunctionEpilepsyFemaleGliomaHumansIsocitrate DehydrogenaseMaleMiddle AgedMutationPrognosisIDH1 protein, humanIsocitrate Dehydrogenasecognitiondiffuse gliomaisocitrate dehydrogenasemagnetoencephalography

Identifiers

PMID30809977
PMCPMC6456787
OpenAlexW2915663776

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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.