Evidence map›Paper›PMID 39928964›Full record

ArticleRadiation oncology journal2025

Feasibility and safety study of ultra-hypofractionated neoadjuvant radiotherapy to margins-at-risk in retroperitoneal sarcoma.

Ru-Xin Wong, Valerie Shi Wen Yang, Clarame Shulyn Chia, Wen Shen Looi, Wen Long Nei, Chin-Ann Johnny Ong

Abstract read
In one paragraph

Article in Radiation oncology journal, 2025. 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
–field-weighted citation impact
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.

  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

6 authors.

Ru-Xin WongDivision of Radiation Oncology, National Cancer Centre Singapore, Singapore.
Valerie Shi Wen YangSingHealth Duke-NUS Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore.
Clarame Shulyn ChiaSingHealth Duke-NUS Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore.
Wen Shen LooiDivision of Radiation Oncology, National Cancer Centre Singapore, Singapore.
Wen Long NeiDivision of Radiation Oncology, National Cancer Centre Singapore, Singapore.
Chin-Ann Johnny OngSingHealth Duke-NUS Oncology Academic Clinical Program, Duke-NUS Medical School, Singapore.

Funding

Clinician Scientist Award MOH-CSAINV22jul-0005National Medical Research Council Clinician Scientist- Individual Research MOH-CIRG21jun-0005NCCS Cancer FundSingHealth Onco-ACP Proton Therapy Research Funds
6 · The paper itself

Abstract

purposeRetroperitoneal sarcomas (RPS) are rare tumors that present unique challenges, often due to late presentation, and the proximity of critical organs makes complete surgical resection challenging. This study aimed to assess the feasibility of neoadjuvant short-course radiotherapy (SCRT) targeting margins-at-risk and to assess its potential impact on outcomes. MATERIALS AND

methodsThis is a single-center, prospective, non-randomized feasibility study. SCRT was administered via image-guided volumetric modulated arc therapy, consisting of 5 fractions of daily radiotherapy followed by immediate surgery. As a starting dose, patients were prescribed 25 Gy in 5 fractions. For the escalation stage, patients were prescribed 30 Gy in 5 fractions. Only the presumed threatened surgical margins were delineated for large tumors.

resultsPatients with either primary or recurrent RPS were recruited. Eight patients underwent SCRT but one patient did not have a resection as planned. Seven patients underwent surgical resection, of whom one passed away 3 months postoperative from a cardiac event. After a median follow-up of 20.5 months for the six postoperative survivors, there were no overt long-term toxicities and one patient relapsed out-of-radiotherapy-field.

conclusionSCRT to RPS with a margin boost followed by immediate surgery is worth investigating. A starting dose of 30 Gy in 5 fractions is recommended for further studies. Longer-term follow-up is necessary.

Indexed as

Neoadjuvant therapyPreoperative proceduresRadiotherapySarcoma

Identifiers

PMID39928964
PMCPMC12010885

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