Evidence map›Paper›PMID 33194765›Full record

ArticleFrontiers in oncology2020

Stereotactic Radiosurgery for Vestibular Schwannomas: Reducing Toxicity With 11 Gy as the Marginal Prescribed Dose.

Guillaume Dupic, Marie Urcissin, Thierry Mom, Pierre Verrelle, Véronique Dedieu, Ioana Molnar, Youssef El-Ouadih, Vincent Chassin, Michel Lapeyre, Jean-Jacques Lemaire and 2 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
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  4. [ACOUNEU-radiosurgery or hypofractionated radiotherapy for sporadic vestibular schwannoma].Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026
    Article
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  7. Biologically effective dose (BED) value lower than 120 Gy improve outcomes in lung SBRT.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
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  10. Review
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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

12 authors at 2 institutions in 1 country.

Guillaume DupicDepartment of Radiation Oncology, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Marie UrcissinDepartment of Radiation Oncology, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Thierry MomDepartment of Otoneurolaryngology, Clermont-Ferrand Hospital, University of Clermont Auvergne, Clermont-Ferrand, France.
Pierre VerrelleDepartment of Radiation Oncology, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Véronique DedieuDepartment of Medical Physics, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Ioana MolnarDepartment of Clinical Research, UMR 501, Jean Perrin Center, Clermont-Ferrand, France.
Youssef El-OuadihDepartment of Neurosurgery, Clermont-Ferrand Hospital, University of Clermont Auvergne, Clermont-Ferrand, France.
Vincent ChassinDepartment of Medical Physics, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Michel LapeyreDepartment of Radiation Oncology, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Jean-Jacques LemaireDepartment of Neurosurgery, Clermont-Ferrand Hospital, University of Clermont Auvergne, Clermont-Ferrand, France.
Julian BiauDepartment of Radiation Oncology, Jean Perrin Center, University of Clermont Auvergne, Clermont-Ferrand, France.
Toufic KhalilDepartment of Neurosurgery, Clermont-Ferrand Hospital, University of Clermont Auvergne, Clermont-Ferrand, France.
Université Clermont Auvergne · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStereotactic radiosurgery (SRS) is a common treatment option for vestibular schwannomas. Historically, a dose de-escalation of the marginal prescribed dose from 16 Gy to 12-13 Gy has been done to limit toxicity without reducing local control (LC). We aimed to retrospectively report outcomes of Linac-based SRS for vestibular schwannomas treated with different doses.

methodsIncluded in the study were 97 stage 1 (1%), 2 (56%), 3 (21.5%), and 4 (21.5%) vestibular schwannomas treated with Linac-based (Novalis

resultsFollowing SRS, LC at 3, 5, and 10 years was 100%, 98.4%, and 95.6%, respectively [100% for those with ≤ 13 Gy as the marginal prescribed dose (NS)]. Toxicity to the trigeminal nerve was reported in 7.2% of cases (3.3% and 0% for transient and permanent toxicity for 11 Gy). The marginal prescribed dose was the only significant predictive factor in univariate and multivariate analysis (HR = 1.77, 95% CI = 1.07-3.10, p = 0.028). Toxicity to the facial nerve was reported in 6.2% of cases. The marginal prescribed dose was again the only significant predictive factor in univariate and multivariate analysis (HR = 1.31, 95% CI = 0.77-2.23, p = 0.049).

conclusionLinac-based SRS for stages 1-3 vestibular schwannomas provides excellent outcomes: a 10-year LC rate of over 95%, with a permanent facial or trigeminal toxicity rate of under 5%. A marginal prescribed dose of 11 Gy seems to decrease nerve toxicity and facial toxicity in particular, without reducing LC. Prospective studies with longer follow-up are needed.

Indexed as

dose de-escalationefficacy and safetystereotactic radiosurgery (SRS)toxicityvestibular schwannomas (VS)

Identifiers

PMID33194765
PMCPMC7659960
OpenAlexW3097240098

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.