Evidence map›Paper›PMID 31552588›Full record

Observational studyJournal of neuro-oncology2019

Cognitive functioning and predictors thereof in patients with 1-10 brain metastases selected for stereotactic radiosurgery.

Wietske C M Schimmel, Karin Gehring, Patrick E J Hanssens, Margriet M Sitskoorn

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Journal of neuro-oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02953756 (Cognitive Outcome After Gamma Knife Radiosurgery in Patients With 1-10 Brain Metastases), which is not on this map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–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.

NCT02953756 completednot on this map

Cognitive Outcome After Gamma Knife Radiosurgery in Patients With 1-10 Brain Metastases

TypeobservationalSponsorElisabeth-TweeSteden ZiekenhuisRan2015 to 2019Enrolled92ConditionsNeoplasm MetastasesArmsGamma Knife radiosurgery
3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Trial
  2. The impact of financial toxicity on quality of life for survivors of primary brain tumour.Journal of cancer survivorship : research and practice · 2025
    Article
  3. Review
  4. Article
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  6. Review
  7. Review
  8. Article
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  10. Review
  11. Observational
  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

4 authors.

Wietske C M SchimmelGamma Knife Center, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands. w.c.m.schimmel@tilburguniversity.edu.ORCID http://orcid.org/0000-0003-4689-2166
Karin GehringDepartment of Neurosurgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands.ORCID http://orcid.org/0000-0002-6989-1855
Patrick E J HanssensGamma Knife Center, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands.
Margriet M SitskoornDepartment of Neurosurgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands.

Funding

ZonMw 842003006
6 · The paper itself

Abstract

purposeInformation on predictive factors of cognitive functioning in patients with (multiple) brain metastases (BM) selected for radiosurgery may allow for more individual care and may play a role in predicting cognitive outcome after radiosurgery. The aim of this study was to evaluate cognitive performance, and predictors thereof, in patients with 1-10 BM before radiosurgery.

methodsCognition was measured before radiosurgery using a standardized neuropsychological test battery in patients with 1-10 BM (expected survival > 3 months; KPS ≥ 70; no prior BM treatment). Regression formulae were constructed to calculate sociodemographically corrected z scores. Group and individual cognitive functioning was analyzed. Multivariable regression was used to explore potential predictors.

resultsPatients (N = 92) performed significantly worse than controls (N = 104) on all 11 test variables (medium-large effect sizes for 8 variables). Percentages of impairment were highest for information processing (55.3%), dexterity (43.2%) and cognitive flexibility (28.7%). 62% and 46% of patients had impairments in at least two, or three test variables, respectively. Models including combinations of clinical and psychological variables were predictive of verbal memory, psychomotor speed, information processing and dexterity. Neither number nor volume of metastases predicted patients' test performance.

conclusionsAlready before radiosurgery, almost half of the patients suffered from severe cognitive deficits in at least three test variables. At group and individual level, information processing, cognitive flexibility, and dexterity were most affected. These cognitive impairments may impair daily functioning and patients' ability to make (shared) treatment decisions. Both clinical (symptomatic BM; timing of BM diagnosis) and psychological (mental fatigue) characteristics influenced cognitive performance. CLINICAL TRIAL INFORMATION: Cognition and Radiation Study A (CAR-Study A; ClinicalTrials.gov Identifier: NCT02953756; Medical Ethics Committee file number: NL53472.028.15/P1515).

Indexed as

AdultAgedAged, 80 and overBrain NeoplasmsCognitive DysfunctionFemaleHumansLongitudinal StudiesMaleMiddle AgedNeuropsychological TestsPrognosisProspective StudiesRadiosurgeryBrain metastasesCognitive functioningGamma knife radiosurgeryStereotactic radiosurgery

Identifiers

PMID31552588
PMCPMC6856035

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Registered trials

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.