Evidence map›Paper›PMID 32026433›Full record

ArticleJournal of neuro-oncology2020

Comparison of two-stage Gamma Knife radiosurgery outcomes for large brain metastases among primary cancers.

Daisuke Ito, Kyoko Aoyagi, Osamu Nagano, Toru Serizawa, Yasuo Iwadate, Yoshinori Higuchi

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.7field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 31 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Daisuke ItoGamma Knife House, Chiba Cerebral and Cardiovascular Center, 575 Tsurumai, Ichihara, Chiba, 2900512, Japan. tiotio1687@yahoo.co.jp.ORCID http://orcid.org/0000-0003-0912-8839
Kyoko AoyagiGamma Knife House, Chiba Cerebral and Cardiovascular Center, 575 Tsurumai, Ichihara, Chiba, 2900512, Japan.
Osamu NaganoGamma Knife House, Chiba Cerebral and Cardiovascular Center, 575 Tsurumai, Ichihara, Chiba, 2900512, Japan.
Toru SerizawaTokyo Gamma Unit Center, Tsukiji Neurological Clinic, Tokyo, Japan.
Yasuo IwadateDepartment of Neurological Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Yoshinori HiguchiDepartment of Neurological Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Chiba Cerebral and Cardiovascular Center · JPChiba University · JPOsaka Neurological Institute · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStereotactic radiosurgery (SRS) is typically considered for patients who cannot undergo surgical resection for large (> 10 cm

methodsWe analyzed 178 patients with 182 large BMs initially treated with two-stage SRS. The primary cancers included breast (BC), non-small cell lung (NSCLC), and gastrointestinal tract cancers (GIC). We analyzed the overall survival (OS), neurological death, systemic death (SD), tumor progression (TP), tumor recurrence (TR), radiation necrosis (RN), and the tumor reduction rate during both stages.

resultsThe median survival time after the first Gamma Knife surgery (GKS) procedure was 6.6 months. Compared with patients with BC and NSCLC, patients with GIC had shorter OS and a higher incidence of SD. Compared with patients with NSCLC and GIC, patients with BC had significantly higher tumor reduction rates in both sessions. TP rates were similar among primary cancer types. There was no association of the tumor reduction rate with tumor control. The overall cumulative incidence of RN was 4.2%; further, the RN rates were similar among primary cancer types.

conclusionsTwo-stage SRS should be considered for BC and NSCLC if surgical resection is not indicated. For BMs from GIC, staged SRS should be carefully considered and adapted to each unique case given its lower tumor reduction rate and shorter OS.

Indexed as

RadiosurgeryAdultAgedAged, 80 and overBrain NeoplasmsBreast NeoplasmsCarcinoma, Non-Small-Cell LungDisease ProgressionFemaleGastrointestinal NeoplasmsHumansKaplan-Meier EstimateMiddle AgedRetrospective StudiesTreatment OutcomeAdaptive radiosurgeryGamma knifeLarge brain metastasesPrimary cancerTumor reduction rateTwo-stage stereotactic radiosurgery

Identifiers

PMID32026433
OpenAlexW3004793034

What OpenQuestion holds

Textmetadata
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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.