Evidence map›Paper›PMID 28567586›Full record

SynthesisJournal of neuro-oncology2017

Tumor-related neurocognitive dysfunction in patients with diffuse glioma: a systematic review of neurocognitive functioning prior to anti-tumor treatment.

Emma van Kessel, Anniek E Baumfalk, Martine J E van Zandvoort, Pierre A Robe, Tom J Snijders

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Journal of neuro-oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed, 4 pooled it
11.7field-weighted citation impact, top 1% 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

112 citing papers in PubMed, 4 syntheses or guidelines pooled it, 181 citations in OpenAlex.

  1. Pooled it
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  8. Article
  9. Cancer treatment-related cognitive impairment.Neuro-oncology advances · 2026
    Review
  10. Review
  11. Article
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  13. Symptom network and latent profile analysis in patients after glioma surgery: a cross-sectional study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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  15. Article
  16. Review
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52 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Emma van KesselDepartment of Neurology & Neurosurgery, University Medical Center Utrecht/Brain Center Rudolf Magnus, G03.232, PO Box 85500, 3508 XC, Utrecht, The Netherlands. e.vankessel-2@umcutrecht.nl.ORCID http://orcid.org/0000-0002-6356-436X
Anniek E BaumfalkDepartment of Neurology & Neurosurgery, University Medical Center Utrecht/Brain Center Rudolf Magnus, G03.232, PO Box 85500, 3508 XC, Utrecht, The Netherlands.
Martine J E van ZandvoortDepartment of Neurology & Neurosurgery, University Medical Center Utrecht/Brain Center Rudolf Magnus, G03.232, PO Box 85500, 3508 XC, Utrecht, The Netherlands.
Pierre A RobeDepartment of Neurology & Neurosurgery, University Medical Center Utrecht/Brain Center Rudolf Magnus, G03.232, PO Box 85500, 3508 XC, Utrecht, The Netherlands.
Tom J SnijdersDepartment of Neurology & Neurosurgery, University Medical Center Utrecht/Brain Center Rudolf Magnus, G03.232, PO Box 85500, 3508 XC, Utrecht, The Netherlands.
University Medical Center Utrecht · NLUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Deficits in neurocognitive functioning (NCF) frequently occur in glioma patients. Both treatment and the tumor itself contribute to these deficits. Data about the role of the tumor are scarce, because NCF has mostly been studied postoperatively. We aimed to summarize data on pre-treatment NCF in glioma patients and to determine the overall and domain-specific prevalence of neurocognitive dysfunction. We searched PubMed and Embase according to PRISMA-P protocol for studies that evaluated pre-treatment NCF in glioma patients (1995-November 2016) and extracted information about NCF. We performed analysis of data for two main outcome measures; mean cognitive functioning of the study sample (at group level) and the percentage of impaired patients (at individual level). We included 23 studies. Most studies were small observational prospective cohort studies. In 11 (47.5%) studies, patient selection was based on tumor location. NCF was analyzed at the group level in 14 studies, of which 13 (92.9%) found decreased NCF at group level, compared to normative data or matched controls. The proportion of individuals with decreased NCF was reported in 15 studies. NCF was impaired (in any domain) in 62.6% of the individuals (median; interquartile range 31.0-79.0). Cognitive impairments were more common in patients with high-grade glioma than with low-grade glioma (OR 2.50; 95% CI 1.71-3.66). Cognitive impairment occurs in the majority of treatment-naive glioma patients, suggesting that neurocognitive dysfunction is related to the tumor. However, the literature about pre-treatment NCF in glioma patients is characterized by small-scale studies and strong heterogeneity in patient selection, resulting in high risk of bias.

Indexed as

Brain NeoplasmsCognition DisordersGliomaHumansNeuropsychological TestsBrain tumorCognitionGliomaNeurocognitive functioningNeuropsychology

Identifiers

PMID28567586
PMCPMC5543199
OpenAlexW2617645708

What OpenQuestion holds

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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.