Evidence map›Paper›PMID 29510611›Full record

ArticleCancer research and treatment2019

Validation of the Eighth American Joint Committee on Cancer Staging System for Distal Bile Duct Carcinoma.

Sun-Young Jun, You-Na Sung, Jae Hoon Lee, Kwang-Min Park, Young-Joo Lee, Seung-Mo Hong

Abstract readValidation Study
In one paragraph

Article in Cancer research and treatment, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–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

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Surgical management of biliary malignancy.Current problems in surgery · 2021
    Article
  17. 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.

Sun-Young JunDepartment of Pathology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.
You-Na SungDepartment of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Jae Hoon LeeDepartment of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Kwang-Min ParkDepartment of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Young-Joo LeeDepartment of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
Seung-Mo HongDepartment of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Funding

Ministry of Science, ICT and Future PlanningNational Research Foundation of Korea 2012R1A1A2003360
6 · The paper itself

Abstract

purposeT category of the eighth edition of the American Joint Committee on Cancer (AJCC) staging system for distal bile duct carcinoma (DBDC) was changed to include tumor invasion depth measurement, while the N category adopted a 3-tier classification system based on the number of metastatic nodes. MATERIALS AND

methodsTo validate cancer staging, a total of 200 surgically resected DBDCs were staged and compared according to the seventh and eighth editions.

resultsT categories included T1 (n=37, 18.5%), T2 (n=114, 57.0%), and T3 (n=49, 24.5%). N categories included N0 (n=133, 66.5%), N1 (n=50, 25.0%), and N2 (n=17, 8.5%). Stage groupings included I (n=33, 16.5%), II (n=150, 75.0%), and III (n=17, 8.5%). The overall 5-year survival rates (5-YSRs) of T1, T2, and T3 were 59.3%, 42.4%, and 12.2%, respectively. T category could discriminate patient survival by both pairwise (T1 and T2, p=0.011; T2 and T3, p < 0.001) and overall (p < 0.001) comparisons. The overall 5-YSRs of N0, N1, and N2 were 47.3%, 17.0%, and 14.7%, respectively. N category could partly discriminate patient survival by both pairwise (N0 and N1, p < 0.001; N1 and N2, p=0.579) and overall (p < 0.001) comparisons. The overall 5-YSRs of stages I, II, and III were 59.0%, 35.4%, and 14.7%, respectively. Stages could distinguish patient survival by both pairwise (I and II, p=0.002; II and III, p=0.015) and overall (p < 0.001) comparisons. On multivariate analyses, T and N categories (p=0.014 and p=0.029) and pancreatic invasion (p=0.006) remained significant prognostic factors.

conclusionThe T andNcategories of the eighth edition AJCC staging system for DBDC accurately predict patient prognosis.

Indexed as

AgedBile Duct NeoplasmsBiliary Tract Surgical ProceduresCholangiocarcinomaFemaleHumansMaleMiddle AgedNeoplasm InvasivenessNeoplasm StagingPrognosisSurvival AnalysisTreatment OutcomeUnited StatesBile ductCholangiocarcinomaExtrahepaticNeoplasmStaging

Identifiers

PMID29510611
PMCPMC6333967

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.