Evidence map›Paper›PMID 31933257›Full record

ArticleJournal of neuro-oncology2020

Salvage gamma knife radiosurgery for active brain metastases from small-cell lung cancer after whole-brain radiation therapy: a retrospective multi-institutional study (JLGK1701).

Kiyoshi Nakazaki, Shoji Yomo, Takeshi Kondoh, Toru Serizawa, Hiroyuki Kenai, Jun Kawagishi, Sonomi Sato, Osamu Nagano, Hitoshi Aiyama, Hideya Kawai and 5 more

Abstract readMulticenter 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 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 9 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

15 authors at 14 institutions in 1 country.

Kiyoshi NakazakiDepartment of Neurosurgery, Brain Attack Center Ota Memorial Hospital, 3-6-28 Okinogami, Fukuyama, Hiroshima, 7200825, Japan. knakazaki@h7.dion.ne.jp.ORCID http://orcid.org/0000-0003-0900-4465
Shoji YomoDepartment of Neurosurgery, Aizawa Hospital, Matsumoto, Nagano, Japan.
Takeshi KondohDepartment of Neurosurgery, Shinsuma General Hospital, Kobe, Hyogo, Japan.
Toru SerizawaTokyo Gamma Unit Center, Tsukiji Neurological Clinic, Tokyo, Japan.
Hiroyuki KenaiDepartment of Neurosurgery, Nagatomi Neurosurgical Hospital, Oita, Japan.
Jun KawagishiJiro Suzuki Memorial GammaHouse, Furukawa Seiryo Hospital, Osaki, Miyagi, Japan.
Sonomi SatoDepartment of Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama, Fukushima, Japan.
Osamu NaganoGamma Knife House, Chiba Cerebral and Cardiovascular Center, Ichihara, Chiba, Japan.
Hitoshi AiyamaKatsuta Hospital Mito GammaHouse, Hitachi-naka, Ibaraki, Japan.
Hideya KawaiDepartment of Neurosurgery, Research Institute for Brain and Blood-Vessels-Akita, Akita, Japan.
Toshinori HasegawaDepartment of Neurosurgery, Komaki City Hospital, Komaki, Aichi, Japan.
Yoshiyasu IwaiDepartment of Neurosurgery, Osaka City General Hospital, Osaka, Japan.
Yasushi NagatomoDepartment of Neurosurgery, Kouseikai Takai Hospital, Tenri, Nara, Japan.
Yoshihisa KidaDepartment of Neurosurgery, Ookuma Hospital, Nagoya, Japan.
Masakazu NishigakiDepartment of Human Health Sciences, School of Medicine, Kyoto University, Kyoto, Japan.
Aizawa Hospital · JPChiba Cerebral and Cardiovascular Center · JPFukuyama Cardiovascular Hospital · JPHitachi (Japan) · JPKomaki City Hospital · JPKuma Hospital · JPKyoto University · JPNagatomi Neurosurgical Hospital · JPOsaka City General Hospital · JPOsaka Neurological Institute · JPResearch Institute for Brain and Blood Vessels Akita · JPSouthern Tohoku General Hospital · JPSuzuki (Japan) · JPTenri Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the efficacy of gamma knife radiosurgery (GKS) for brain metastases (BMs) from small-cell lung cancer after whole-brain radiotherapy (WBRT).

methodsWe retrospectively analyzed the usefulness and safety of GKS in 163 patients from 15 institutions with 1-10 active BMs after WBRT. The usefulness and safety of GKS were evaluated using statistical methods.

resultsThe median age was 66 years, and 79.1% of patients were men. The median number and largest diameter of BM were 2.0 and 1.4 cm, respectively. WBRT was administered prophylactically in 46.6% of patients. The median overall survival (OS) was 9.3 months, and the neurologic mortality was 20.0%. Crude incidences of local control failure and new lesion appearance were 36.6% and 64.9%, respectively. A BM diameter ≥ 1.0 cm was a significant risk factor for local progression (hazard ratio [HR] 2.556, P = 0.039) and neurologic death (HR 4.940, P = 0.031). Leukoencephalopathy at the final follow-up was more prevalent in the therapeutic WBRT group than in the prophylactic group (P = 0.019). The symptom improvement rate was 61.3%, and neurological function was preserved for a median of 7.6 months. Therapeutic WBRT was not a significant risk factor for OS, neurological death, local control, or functional deterioration (P = 0.273, 0.490, 0.779, and 0.560, respectively). Symptomatic radiation-related adverse effects occurred in 7.4% of patients.

conclusionsGKS can safely preserve neurological function and prevent neurologic death in patients with 1-10 small, active BMs after prophylactic and therapeutic WBRT.

Indexed as

RadiosurgeryAdultAgedAged, 80 and overBrain NeoplasmsFemaleHumansLeukoencephalopathiesLung NeoplasmsMaleMiddle AgedRetrospective StudiesSalvage TherapySmall Cell Lung CarcinomaSurvival AnalysisTreatment OutcomeBrain metastasesGamma knife radiosurgeryLeukoencephalopathySmall-cell lung cancerWhole-brain radiation therapy

Identifiers

PMID31933257
OpenAlexW2999938228

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.