Evidence map›Paper›PMID 33855599›Full record

ArticleLangenbeck's archives of surgery2021

A proposal to modify the 8th edition of the UICC staging system for pancreatic adenocarcinoma.

Takatsugu Matsumoto, Takehiro Okabayashi, Kenta Sui, Jiro Kimura, Sojiro Morita, Jun Iwata, Tatsuo Iiyama, Keiichi Kubota, Yasuhiro Shimada

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Article in Langenbeck's archives of surgery, 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
–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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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. FecalGastro hep advances · 2026
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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Takatsugu MatsumotoDepartment of Gastroenterological Surgery, Kochi Health Sciences Center, 2125-1 Ike, Kochi City, Kochi, 781-1555, Japan.
Takehiro OkabayashiDepartment of Gastroenterological Surgery, Kochi Health Sciences Center, 2125-1 Ike, Kochi City, Kochi, 781-1555, Japan. tokabaya@gmail.com.ORCID http://orcid.org/0000-0002-4829-4306
Kenta SuiDepartment of Gastroenterological Surgery, Kochi Health Sciences Center, 2125-1 Ike, Kochi City, Kochi, 781-1555, Japan.
Jiro KimuraDepartment of Gastroenterological Surgery, Kochi Health Sciences Center, 2125-1 Ike, Kochi City, Kochi, 781-1555, Japan.
Sojiro MoritaDepartment of Radiology, Kochi Health Sciences Center, Kochi, Japan.
Jun IwataDepartment of Diagnostic Pathology, Kochi Health Sciences Center, Kochi, Japan.
Tatsuo IiyamaDepartment of Biostatistics, National Center for Global Health and Medicine, Shinjuku, Japan.
Keiichi KubotaDepartment of Surgery, Dokkyo Medical University Hospital, Tochigi, Japan.
Yasuhiro ShimadaDepartment of Clinical Oncology, Kochi Health Sciences Center, Kochi, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to validate and improve the 8th edition of the Union for International Cancer Control (UICC) staging system for pancreatic ductal adenocarcinoma (PDAC).

methodsPrognostic impact of the pathological tumor (pT) and lymph node (pN) stages between the 7th and 8th editions were compared using a single-center cohort of 311 patients who underwent curative pancreatic resection for PDAC.

resultsApplying the 7th edition T staging system resulted in a clustering of pT3 cases (92.3%) and failed to show significant prognostic differences between the three pT stages. However, applying the 8th edition T staging system yielded a more even distribution and resulted in an excellent prognostic separation between the pT stages based on decreases in median survival (month [pT1: 69.4, pT2: 27.6, pT3: 16.7], p=0.001). In pN staging system, the 8th edition provided more precise prognostication in median survival (month [pN0: 41.7, pN1: 25.6, pN2: 14.4], p<0.001). Moreover, in the 8th edition pT2 category, patients with portal vein invasion (PVI) showed significantly worse survival than those without PVI (median survival months [without PVI: 38.2, with PVI: 17.1], p<0.001).

conclusionsThe 8th edition provides a more even distribution among stages and better stage discriminations compared to the 7th edition. The 8th edition pT2 category should be subdivided according to PVI status of the patient to allow for more precise patient prognostication.

Indexed as

AdenocarcinomaCarcinoma, Pancreatic DuctalPancreatic NeoplasmsHumansNeoplasm StagingPrognosisPancreatic cancer;Portal vein invasion;Staging system;TNM classification;Union for International Cancer Control staging system

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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.