Evidence map›Paper›PMID 34513462›Full record

ArticleCureus2021

Radiation Therapy for Grade 3 Gliomas: Correlation of MRI Findings With Prognosis.

Masashi Mizumoto, Hsiang-Kuang Liang, Yoshiko Oshiro, Masahide Matsuda, Hidehiro Kohzuki, Takashi Iizumi, Haruko Numajiri, Kei Nakai, Toshiyuki Okumura, Eiichi Ishikawa and 1 more

Open access · diamondAbstract read
In one paragraph

Article in Cureus, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 51% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Review
  2. 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

11 authors at 4 institutions in 2 countries.

Masashi MizumotoRadiation Oncology, University of Tsukuba Hospital, Tsukuba, JPN.
Hsiang-Kuang LiangDepartment of Biomedical Engineering, National Taiwan University, Taipei, TWN.
Yoshiko OshiroDepartment of Radiation Oncology, Tsukuba Medical Center Hospital, Tsukuba, JPN.
Masahide MatsudaNeurosurgery, University of Tsukuba Hospital, Tsukuba, JPN.
Hidehiro KohzukiNeurosurgery, University of Tsukuba Hospital, Tsukuba, JPN.
Takashi IizumiDepartment of Radiation Oncology, Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba, JPN.
Haruko NumajiriDepartment of Radiation Oncology, Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba, JPN.
Kei NakaiDepartment of Radiation Oncology, University of Tsukuba Hospital, Tsukuba, JPN.
Toshiyuki OkumuraDepartment of Radiation Oncology, Proton Medical Research Center, University of Tsukuba Hospital, Tsukuba, JPN.
Eiichi IshikawaNeurosurgery, University of Tsukuba Hospital, Tsukuba, JPN.
Hideyuki SakuraiRadiation Oncology, Tsukuba University, Tsukuba, JPN.
University of Tsukuba Hospital · JPNational Taiwan University Hospital · TWTsukuba Medical Center Hospital · JPUniversity of Tsukuba · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and objective Postoperative radiotherapy is usually indicated for both grade 3 glioma and grade 4 glioblastoma. However, the treatment results and tumor features of grade 3 glioma clearly differ from those of glioblastoma. There is limited information on outcomes and tumor progression for grade 3 glioma. In this study, we evaluate the result of postoperative radiotherapy for grade 3 glioma and focus on the correlation of MRI findings with prognosis. Methods In this study, 99 of 110 patients with grade 3 glioma who received postoperative radiotherapy and were followed up for more than one year were retrospectively analyzed. The total irradiation dose was 60.0 Gy in 30 fractions, and daily temozolomide or two cycles of nimustine (ACNU) was concurrently administered during radiotherapy. The median follow-up period was 46 months (range: 2-151 months). Results In multivariate analysis, pathology [anaplastic oligodendroglioma (AO) vs. anaplastic astrocytoma (AA)], the status of surgical resection (biopsy vs. partial resection or more), and contrast enhancement (enhanced by MRI image or not) were significant factors for overall survival (OS). The five-year OS for AO vs. AA cases were 76.8% vs. 46.1%, total to partial resection vs. biopsy cases were 72.7% vs. 21.0%, and non-enhanced vs. enhanced cases were 82.5% vs. 45.6%, respectively. In multivariate analysis, the status of surgical resection and longer extension of preoperative edema (PE) were significant factors for progression-free survival (PFS). The five-year PFS for the total to partial resection vs. biopsy cases were 52.9% vs. 10.7%, and non-extensive PE vs. extensive PE (EPE) cases were 62.2% vs. 19.1%, respectively. Conclusion Our results suggest that a contrast-enhanced tumor on MRI and a longer PE may also be significantly associated with OS and PFS among grade 3 glioma patients.

Indexed as

gliomagrade 3high grade gliomaradiotherapyrisk factors

Identifiers

PMID34513462
PMCPMC8416380
OpenAlexW3189101600

What OpenQuestion holds

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LicenceCC BY
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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.