Evidence map›Paper›PMID 30326871›Full record

SynthesisBMC cancer2018

Impact of tumor size on survival of patients with resected pancreatic ductal adenocarcinoma: a systematic review and meta-analysis.

Debang Li, Bin Hu, Yanming Zhou, Tao Wan, Xiaoying Si

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Tumors Are Evolutionary Island-Like Ecosystems.Genome biology and evolution · 2021
    Article
  10. Article
  11. Article
  12. Molecular profiling of ctDNA in pancreatic cancer: Opportunities and challenges for clinical application.Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.] · 2021
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

5 authors.

Debang LiDepartment III of General Surgery, First Hospital of Lanzhou University, Lanzhou, China.
Bin HuDepartment of Clinical Laboratory Medicine, First affiliated Hospital of Xiamen University, Xiamen, China.
Yanming ZhouDepartment of Hepatobiliary & Pancreatovascular Surgery, First affiliated Hospital of Xiamen University, Xiamen, China. zhouymsxy@sina.cn.ORCID http://orcid.org/0000-0002-8684-7485
Tao WanDepartment of Hepatobiliary & Pancreatovascular Surgery, First affiliated Hospital of Xiamen University, Xiamen, China.
Xiaoying SiDepartment of Hepatobiliary & Pancreatovascular Surgery, First affiliated Hospital of Xiamen University, Xiamen, China.

Funding

Major Diseases Joint Research Program of Xiamen City 3502Z20170943Natural Science Foundation of Fujian Province 2015J01561
6 · The paper itself

Abstract

backgroundThe impact of tumor size on prognosis for surgically treated patients with pancreatic ductal adenocarcinoma (PDAC) remains controversial. A systematic review and meta-analysis was performed to evaluate this issue.

methodsRelevant studies published from January 2000 to June 2017 were identified through EMBASE and PUBMED. Data were pooled for meta-analysis using Review Manager 5.3.

resultsTwenty eight observational studies involving a total of 23,945 patients were included. Tumors > 2 cm was associated with poor prognosis: the pooled hazard ratio (HR) estimate for overall survival was 1.52 (95% confidence interval [CI]: 1.41-1.64; P < 0.0001) by univariate analysis and 1.61 (95% CI: 1.35-1.91; P < 0.0001) by multivariate analysis; the pooled HR estimate for disease-free survival was 1.74 (95% CI: 1.46-2.07; P < 0.0001) by univariate analysis and 1.38 (95% CI: 1.12-1.68; P = 0.002) by multivariate analysis. When compared with patients with tumors ≤2 cm, those with the tumors > 2 cm had higher incidences of lymph node metastasis, poor tumor differentiation, lymph vessel invasion, vascular invasion, perineural invasion, and positive intraoperative peritoneal cytology.

conclusionThese data demonstrate that PDAC size > 2 cm is an independent predictive factor for poor prognosis after surgical resection and associated with more aggressive tumor biology.

Indexed as

AdenocarcinomaCarcinoma, Pancreatic DuctalDisease-Free SurvivalHumansObservational Studies as TopicPancreatic NeoplasmsPredictive Value of TestsPrognosisPancreatic ductal adenocarcinomaPrognosisResectionSize

Identifiers

PMID30326871
PMCPMC6192226

What OpenQuestion holds

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Registered trials

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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.