Evidence map›Paper›PMID 22416109›Full record

ArticleNeuro-oncology2012

Dynamic imaging response following radiation therapy predicts long-term outcomes for diffuse low-grade gliomas.

Johan Pallud, Jean-François Llitjos, Frédéric Dhermain, Pascale Varlet, Edouard Dezamis, Bertrand Devaux, Raphaëlle Souillard-Scémama, Nader Sanai, Maria Koziak, Philippe Page and 5 more

Abstract read
In one paragraph

Article in Neuro-oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  2. Pooled it
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  6. Tumor Volume Growth Rates and Doubling Times during Active Surveillance of IDH-mutant Low-Grade Glioma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Johan PalludDepartment of Neurosurgery, Sainte-Anne Hospital, Paris, France. johanpallud@hotmail.com
Jean-François Llitjos
Frédéric Dhermain
Pascale Varlet
Edouard Dezamis
Bertrand Devaux
Raphaëlle Souillard-Scémama
Nader Sanai
Maria Koziak
Philippe Page
Michel Schlienger
Catherine Daumas-Duport
Jean-François Meder
Catherine Oppenheim
François-Xavier Roux

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Quantitative imaging assessment of radiation therapy (RT) for diffuse low-grade gliomas (DLGG) by measuring the velocity of diametric expansion (VDE) over time has never been studied. We assessed the VDE changes following RT and determined whether this parameter can serve as a prognostic factor. We reviewed a consecutive series of 33 adults with supratentorial DLGG treated with first-line RT with available imaging follow-up (median follow-up, 103 months). Before RT, all patients presented with a spontaneous tumor volume increase (positive VDE, mean 5.9 mm/year). After RT, all patients demonstrated a tumor volume decrease (negative VDE, mean, -16.7 mm/year) during a mean 49-month duration. In univariate analysis, initial tumor volume (>100 cm(3)), lack of IDH1 expression, p53 expression, high proliferation index, and fast post-RT tumor volume decrease (VDE at -10 mm/year or faster, fast responders) were associated with a significantly shorter overall survival (OS). The median OS was significantly longer (120.8 months) for slow responders (post-RT VDE slower than -10.0 mm/year) than for fast responders (47.9 months). In multivariate analysis, fast responders, larger initial tumor volume, lack of IDH1 expression, and p53 expression were independent poor prognostic factors for OS. A high proliferation index was significantly more frequent in the fast responder subgroup than in the slow responder subgroup. We conclude that the pattern of post-RT VDE changes is an independent prognostic factor for DLGG and offers a quantitative parameter to predict long-term outcomes. We propose to monitor individually the post-RT VDE changes using MRI follow-up, with particular attention to fast responders.

Indexed as

Magnetic Resonance ImagingAdultAgedBrain NeoplasmsDisease-Free SurvivalFemaleGliomaHumansMaleMiddle AgedPredictive Value of TestsPrognosisRetrospective StudiesTreatment OutcomeTumor Burden

Identifiers

PMID22416109
PMCPMC3309865

What OpenQuestion holds

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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.