Evidence map›Paper›PMID 25325778›Full record

ArticleJournal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer2015

Cognitive and brain structural changes in a lung cancer population.

Marta Simó, James C Root, Lucía Vaquero, Pablo Ripollés, Josep Jové, Tim Ahles, Arturo Navarro, Felipe Cardenal, Jordi Bruna, Antoni Rodríguez-Fornells

Abstract read
In one paragraph

Article in Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 5 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

71 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Cognitive rehabilitation for cancer-related cognitive dysfunction: a systematic review.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2019
    Pooled it
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  17. Early region-specific impact of adjuvant radiation therapy on cognition and quality of life in adult patients with primary brain tumors.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Article
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  19. Chemotherapy-related cognitive impairment and kidney dysfunction.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Review
  20. Article

11 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

10 authors.

Marta Simó*Cognition and Brain Plasticity Group, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; †Neuro-Oncology Unit, Hospital Universitari de Bellvitge-ICO Duran i Reynals, L'Hospitalet del Llobregat, Barcelona, Spain; ‡Department of Psychiatry and Behavioral Sciences, Neurocognitive Research Laboratory, Memorial Sloan-Kettering Cancer Center, New York, New York; §Radiation Oncology Department, Hospital Germans Trias i Pujol, ICO Badalona, Barcelona, Spain; Departments of ‖Radiation Oncology and ¶Medical Oncology, Lung Cancer Unit, ICO Duran i Reynals, L'Hospitalet del Llobregat, Barcelona, Spain; #Department of Basic Psychology, Campus Bellvitge, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain; and **Catalan Institution for Research and Advanced Studies, ICREA, Barcelona, Spain.
James C Root
Lucía Vaquero
Pablo Ripollés
Josep Jové
Tim Ahles
Arturo Navarro
Felipe Cardenal
Jordi Bruna
Antoni Rodríguez-Fornells

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

introductionNo study has examined structural brain changes specifically associated with chemotherapy in a lung cancer population. The aim of this cross-sectional study was to assess differences in brain structure between small-cell lung cancer patients (C+) following chemotherapy, non-small-cell lung cancer patients (C-) before chemotherapy and healthy controls (HC).

methodsTwenty-eight small-cell lung cancer patients underwent a neuropsychological assessment and a structural magnetic resonance imaging, including T1-weighted and diffusion tensor imaging to examine gray matter density and white matter (WM) integrity, respectively, 1 month following completion of platinum-based chemotherapy. This group was compared with 20 age and education-matched non-small-cell lung cancer patients before receiving chemotherapy and 20 HC.

resultsBoth C+ and C- groups exhibited cognitive impairment compared with the HC group. The C+ group performed significantly worse than HC in verbal fluency and visuospatial subtests; C- performed significantly worse than both C+ and HC in verbal memory. Voxel-based morphometry analysis revealed lower gray matter density in the insula and parahippocampal gyrus bilaterally, and left anterior cingulate cortex in C+ compared with HC. Diffusion tensor imaging indices showed focal decreased WM integrity in left cingulum and bilateral inferior longitudinal fasciculus in the C+ group and more widespread decreased integrity in the C- group compared with the HC group.

conclusionThis study demonstrates that lung cancer patients exhibit cognitive impairment before and after chemotherapy. Before the treatment, C- showed verbal memory deficits as well as a widespread WM damage. Following treatment, the C+ group performed exhibited lower visuospatial and verbal fluency abilities, together with structural gray matter and WM differences in bilateral regions integrating the paralimbic system.

Indexed as

BrainCognition DisordersCross-Sectional StudiesDiffusion Magnetic Resonance ImagingFemaleHumansLung NeoplasmsMaleMiddle AgedNeuropsychological TestsProspective Studies

Identifiers

PMID25325778
PMCPMC5657249

What OpenQuestion holds

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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.