Evidence map›Paper›PMID 34885193›Full record

ReviewCancers2021

Dose-Response Effect and Dose-Toxicity in Stereotactic Radiotherapy for Brain Metastases: A Review.

Maxime Loo, Jean-Baptiste Clavier, Justine Attal Khalifa, Elisabeth Moyal, Jonathan Khalifa

Open access · goldAbstract readReview
In one paragraph

Review in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Effect of different optimization parameters in single isocenter multiple brain metastases radiosurgery.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Biomedical advances and future prospects of high-precision three-dimensional radiotherapy and four-dimensional radiotherapy.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2023
    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

5 authors at 2 institutions in 1 country.

Maxime LooRadiotherapy Department, University Cancer Institute of Toulouse-Oncopôle, 31100 Toulouse, France.
Jean-Baptiste ClavierRadiotherapy Department, Strasbourg Europe Cancer Institute (ICANS), 67033 Strasbourg, France.
Justine Attal KhalifaRadiotherapy Department, University Cancer Institute of Toulouse-Oncopôle, 31100 Toulouse, France.
Elisabeth MoyalRadiotherapy Department, University Cancer Institute of Toulouse-Oncopôle, 31100 Toulouse, France.
Jonathan KhalifaRadiotherapy Department, University Cancer Institute of Toulouse-Oncopôle, 31100 Toulouse, France.
Institut universitaire du cancer de Toulouse Oncopole · FRInstitut de Cancérologie Strasbourg · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For more than two decades, stereotactic radiosurgery has been considered a cornerstone treatment for patients with limited brain metastases. Historically, radiosurgery in a single fraction has been the standard of care but recent technical advances have also enabled the delivery of hypofractionated stereotactic radiotherapy for dedicated situations. Only few studies have investigated the efficacy and toxicity profile of different hypofractionated schedules but, to date, the ideal dose and fractionation schedule still remains unknown. Moreover, the linear-quadratic model is being debated regarding high dose per fraction. Recent studies shown the radiation schedule is a critical factor in the immunomodulatory responses. The aim of this literature review was to discuss the dose-effect relation in brain metastases treated by stereotactic radiosurgery accounting for fractionation and technical considerations. Efficacy and toxicity data were analyzed in the light of recent published data. Only retrospective and heterogeneous data were available. We attempted to present the relevant data with caution. A BED10 of 40 to 50 Gy seems associated with a 12-month local control rate >70%. A BED10 of 50 to 60 Gy seems to achieve a 12-month local control rate at least of 80% at 12 months. In the brain metastases radiosurgery series, for single-fraction schedule, a V12 Gy < 5 to 10 cc was associated to 7.1-22.5% radionecrosis rate. For three-fractions schedule, V18 Gy < 26-30 cc, V21 Gy < 21 cc and V23 Gy < 5-7 cc were associated with about 0-14% radionecrosis rate. For five-fractions schedule, V30 Gy < 10-30 cc, V 28.8 Gy < 3-7 cc and V25 Gy < 16 cc were associated with about 2-14% symptomatic radionecrosis rate. There are still no prospective trials comparing radiosurgery to fractionated stereotactic irradiation.

Indexed as

brain metastasesdose-effect relationfractionationradiosurgerystereotactic radiotherapy

Identifiers

PMID34885193
PMCPMC8657210
OpenAlexW3217080529

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.