Evidence map›Paper›PMID 32185576›Full record

ArticleClinical & experimental metastasis2020

Single-fraction radiosurgery versus fractionated stereotactic radiotherapy in patients with brain metastases: a comparative study.

Maxime Loo, Yvan Pin, Alicia Thierry, Jean-Baptiste Clavier

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Clinical & experimental metastasis, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.8field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

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  3. Radionecrosis risk and local control after CyberKnifeRadiation oncology (London, England) · 2026
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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

4 authors at 1 institution in 1 country.

Maxime LooRadiotherapy Department, Centre Paul Strauss, Strasbourg Cedex, 67065, France. loo.maxime@gmail.com.
Yvan PinRadiotherapy Department, Centre Paul Strauss, Strasbourg Cedex, 67065, France.
Alicia ThierryPublic Health and Statistics Department, Centre Paul Strauss, Strasbourg Cedex, 67065, France.
Jean-Baptiste ClavierRadiotherapy Department, Centre Paul Strauss, Strasbourg Cedex, 67065, France.
Levi Strauss (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To compare the local control and brain radionecrosis in patients with brain metastasis primarily treated by single-fraction radiosurgery (SRS) or hypofractionated stereotactic radiotherapy (HFSRT). Between January 2012 and December 2017, 179 patients with only 1-3 brain metastases (total: 287) primarily treated by SRS (14 Gy) or HFSRT (23.1 Gy in 3 fractions of 7.7 Gy, every other day) were retrospectively analyzed in a single center. Follow-up imaging data were available in 152 patients with 246 lesions. The corresponding Biological Effective Dose (BED) were 33.6 Gy and 40.9 Gy respectively for SRS and HFSRT group, assuming an α/β of 10 Gy. Local control (LC) and risk of radionecrosis (RN) were calculated by the Kaplan-Meier method. The actuarial local control rates at 6 and 12 months were 94% and 88.1% in SRS group, and 87.6% and 78.4%, in HFSRT group (p = 0.06), respectively. Only the total volume of edema was associated with worse LC (p = 0.01, HR 1.02, 95% CI [1.004-1.03]) in multivariate analysis. Brain radionecrosis occurred in 1 lesion in SRS group and 9 in HFSRT group. Median time to necrosis was 5.5 months (range 1-9). Only the volume of GTV was associated with RN (p = 0.02, HR 1.09, 95% CI [1.01-1.18]) in multivariate analysis. Multi-fraction SRT dose of 23.31 Gy in 3 fractions has similar efficacy to single-fraction SRT dose of 14 Gy in patients with brain metastases. A slightly higher occurrence of radionecrosis appeared in HFSRT group.

Indexed as

Dose Fractionation, RadiationAdolescentAdultAgedAged, 80 and overBiopsyBrainBrain NeoplasmsDose-Response Relationship, RadiationFemaleFollow-Up StudiesHumansKaplan-Meier EstimateMaleMiddle AgedNecrosisBiological effective doseBrain metastasesFractionationStereotactic radiotherapy

Identifiers

PMID32185576
OpenAlexW3012208565

What OpenQuestion holds

Textmetadata
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.