Evidence map›Paper›PMID 33148125›Full record

ArticleTechnology in cancer research & treatment

Distinguish the Role of Radiotherapy From Chemoradiotherapy for Gastric Cancer With Behavior of Metastasis-Indolent in Lymph Node.

Yunfei Zhi, Zhousheng Lin, Jinyuan Ma, Weiming Mou, Xinhua Chen

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In one paragraph

Article in Technology in cancer research & treatment. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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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

2 citing papers in PubMed.

  1. APOL2 Stabilizes Ku80 to Confer NHEJ-Mediated Radioresistance in Gastric Cancer.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
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4 · The record

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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

5 authors.

Yunfei ZhiThe First Clinical Medical School, Southern Medical University, Guangzhou, Guangdong, China.ORCID 0000-0002-0084-6810
Zhousheng LinThe First Clinical Medical School, Southern Medical University, Guangzhou, Guangdong, China.
Jinyuan MaThe Second Clinical Medical School, Southern Medical University, Guangzhou, Guangdong, China.
Weiming MouThe First Clinical Medical School, Southern Medical University, Guangzhou, Guangdong, China.
Xinhua ChenThe First Clinical Medical School, Southern Medical University, Guangzhou, Guangdong, China.ORCID 0000-0002-1879-4318

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough the landmark INT-0116 trial and National Comprehensive Cancer Network (NCCN) guidelines recommended pT3-4Nx gastric cancer (GC) patients to receive chemoradiotherapy, the role of radiotherapy has not been distinguished from chemoradiotherapy.

methodsGC with behavior of metastasis-indolent in lymph node (MILN) being confirmed with more than 15 examined LNs after gastrectomy were identified using the Surveillance, Epidemiology and End Result (SEER) database. The cancer-specific survival (CSS) of subgroups for radiotherapy, chemotherapy, chemoradiotherapy and non-adjuvant-treatment were compared. Propensity score matching (PSM) was performed between radiotherapy and non-radiotherapy subgroups to further distinguish the role of radiotherapy from chemoradiotherapy. Cox regression was performed to identify whether radiotherapy or chemotherapy could independently improve prognosis.

resultsWe identified 690 MILN GC patients in SEER database. 5-year CSS was 71.9% in radiotherapy subgroup and 75.1% in non-radiotherapy subgroup(HR = 1.013, 95% CI = 0.714-1.438, p = 0.940), 75.6% in chemotherapy subgroup and 68.5% in non-chemotherapy subgroup(HR = 0.616, 95% CI = 0.430-0.884, p = 0.008), 52.5% in radiotherapy-alone subgroup and 71.9% in non-adjuvant treatment group (HR = 1.604, 95% CI = 0.575-4.471, p = 0.360), 72.9% in chemoradiotherapy subgroup and 79.5% in chemotherapy-alone subgroup (HR = 1.365, 95% CI = 0.859-2.172, p = 0.185), respectively. Further, PSM markedly improved balance of variables between radiotherapy subgroup and non-radiotherapy subgroup. After PSM, the role of the variables of radiotherapy and chemotherapy in contributing to improving CSS are consistent with that before PSM. Cox regression showed chemotherapy, tumor size, tumor invasiveness and Lauren classification were independent prognostic factors, but not including radiotherapy.

conclusionsChemoradiotherapy confers superior prognosis to MILN GC patients compared with surgery alone might only be attributed to chemotherapy rather than radiotherapy.

Indexed as

ChemoradiotherapyChemotherapy, AdjuvantDisease-Free SurvivalFemaleHumansLymphatic MetastasisLymph NodesMaleMiddle AgedNeoplasm StagingNomogramsPostoperative CarePropensity ScoreRadiotherapy, AdjuvantRetrospective StudiesStomach Neoplasmsadvanced gastric cancerchemoradiotherapychemotherapylymph noderadiotherapy

Identifiers

PMID33148125
PMCPMC7653296

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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.