Evidence map›Paper›PMID 40007614›Full record

ArticleAdvances in radiation oncology2025

Lumbosacral Plexopathy After Carbon-ion Radiation Therapy for Postoperative Pelvic Recurrence of Rectal Cancer: Subanalysis of a Prospective Observational Study (GUNMA 0801).

Takuya Kumazawa, Shintaro Shiba, Yuhei Miyasaka, Masahiko Okamoto, Daijiro Kobayashi, Tatsuya Ohno

Abstract read
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Article in Advances in radiation oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

1 citing paper in PubMed.

  1. Review
4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Takuya KumazawaDepartment of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan.
Shintaro ShibaDepartment of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan.
Yuhei MiyasakaDepartment of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan.
Masahiko OkamotoDepartment of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan.
Daijiro KobayashiDepartment of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan.
Tatsuya OhnoDepartment of Radiation Oncology, Graduate School of Medicine, Gunma University, Maebashi, Gunma, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Data are lacking on the risk factors for radiation-induced lumbosacral plexopathy (RILSP) after carbon-ion radiation therapy (CIRT) for pelvic tumors, such as postoperative recurrence of rectal cancer. We investigated the incidence of RILSP and the associated dosimetric parameters using data from a prospective study of CIRT for postoperative pelvic recurrence of rectal cancer (GUNMA 0801). Methods and Materials: The GUNMA 0801 study included 28 patients, of which we analyzed 20 without lumbosacral plexopathy prior to CIRT. The total dose of CIRT was 73.6 Gy (relative biological effectiveness [RBE]) in 16 fractions. The incidence of RILSP and parameters of the dose-volume histogram were evaluated for the lumbosacral plexuses. RILSP was graded according to the Common Terminology Criteria for Adverse Events version 4.0. Results: Median follow-up was 24 months. The incidence of all RILSP (grades 1 and 2) and grade 2 RILSP was 22.5% (9/40) and 10% (4/40) of 40 lumbosacral plexuses in 20 patients, respectively, and no grade ≥ 3 toxicity was observed. Throughout the dose range, the volumes of the irradiated lumbosacral plexuses were significantly higher in patients with RILSP than in patients without RILSP ( Conclusions: We demonstrated the incidence and predictive dosimetric parameters for RILSP after CIRT and showed that D2 cm

Identifiers

PMID40007614
PMCPMC11850167

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