Evidence map›Paper›PMID 30467813›Full record

ArticleJournal of neuro-oncology2019

Surgical management of lower-grade glioma in the spotlight of the 2016 WHO classification system.

Daniel Delev, Dieter Henrik Heiland, Pamela Franco, Peter Reinacher, Irina Mader, Ori Staszewski, Silke Lassmann, Stefan Grau, Oliver Schnell

Abstract read
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In one paragraph

Article in Journal of neuro-oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Interactive Effects of Molecular, Therapeutic, and Patient Factors on Outcome of Diffuse Low-Grade Glioma.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
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  9. Review
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  14. Ultra-Rapid Droplet Digital PCR Enables Intraoperative Tumor Quantification.medRxiv : the preprint server for health sciences · 2024
    Article
  15. Article
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  18. T2-FLAIR mismatch sign correlates withJournal of neuro-oncology · 2023
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  19. Article
  20. Review
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

9 authors.

Daniel DelevDepartment of Neurosurgery, Medical Center, Freiburg, Germany. delev.daniel@gmail.com.ORCID http://orcid.org/0000-0001-9444-0178
Dieter Henrik HeilandDepartment of Neurosurgery, Medical Center, Freiburg, Germany.
Pamela FrancoDepartment of Neurosurgery, Medical Center, Freiburg, Germany.
Peter ReinacherDepartment of Stereotactic and Functional Neurosurgery, Medical Center, Freiburg, Germany.
Irina MaderDepartment of Neuroradiology, Medical Center, Freiburg, Germany.
Ori StaszewskiInstitute of Neuropathology, Freiburg University Medical Center, Freiburg, Germany.
Silke LassmannInstitute of Pathology, University of Freiburg, Freiburg, Germany.
Stefan GrauDepartment of Neurosurgery, University Hospital Cologne, Cologne, Germany.
Oliver SchnellDepartment of Neurosurgery, Medical Center, Freiburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAccording to the 2016 WHO classification lower-grade gliomas consist of three groups: IDH-mutated and 1p/19q co-deleted, IDH-mutated and IDH-wildtype tumors. The aim of this study was to evaluate the impact of surgical therapy for lower-grade gliomas with a particular focus on the molecular subgroups.

methodsThis is a bi-centric retrospective analysis including 299 patients, who underwent treatment for lower-grade glioma between 1990 and 2016. All tumors were re-classified according to the 2016 WHO classification. Data concerning baseline and tumor characteristics, overall survival, different treatment modalities and functional outcome were analyzed.

resultsA total of 112 (37.5%) patients with IDH-mutation and 1p/19q co-deletetion, 86 (28.8%) patients with IDH-mutation and 101 (33.8%) patients with IDH-wildtype tumors were identified. The median overall survival (mOS) differed significantly between the groups (p < 0.001). Surgical resection was performed in 226 patients and showed significantly improved mOS compared to the biopsy group (p = 0.001). Gross total resection (GTR) was associated with better survival (p = 0.007) in the whole cohort as well as in the IDH-mutated and IDH-wildtype groups compared to partial resection or biopsy. IDH-wildtype patients presented a significant survival benefit after combined radio-chemotherapy compared to radio- or chemotherapy alone (p = 0.02). Good clinical status (NANO) was associated with longer OS (p = 0.001).

conclusionThe impact of surgical treatment on the outcome of lower-grade gliomas depends to a great extent on the molecular subtype of the tumors. Patients with more aggressive tumors (IDH-wildtype) seem to profit from more intensive treatment like GTR, multiple resections and combined radio-/chemotherapy.

Indexed as

AdolescentAdultBrain NeoplasmsChildChromosome DeletionChromosomes, Human, Pair 1Chromosomes, Human, Pair 19GliomaHumansIsocitrate DehydrogenaseKaplan-Meier EstimateMiddle AgedMutationRetrospective StudiesTreatment OutcomeWorld Health OrganizationIDH1 protein, humanIDH2 protein, humanIsocitrate Dehydrogenase1p/19qAstrocytomaGross total resectionIDH-mutationLower-grade gliomasOligodendrogliomaWHO-classification

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Registered trials

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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.