Evidence map›Paper›PMID 35008223›Full record

ArticleCancers2021

Survival Benefit of Resection Surgery for Pancreatic Ductal Adenocarcinoma with Liver Metastases: A Propensity Score-Matched SEER Database Analysis.

Thomas M Pausch, Xinchun Liu, Jiaqu Cui, Jishu Wei, Yi Miao, Ulrike Heger, Pascal Probst, Stephen Heap, Thilo Hackert

Open access · goldAbstract read
In one paragraph

Article in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 5 pooled it
2.8field-weighted citation impact, top 7% of its field
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

29 citing papers in PubMed, 5 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
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  6. Article
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  9. Oligometastatic disease in pancreatic cancer: is there a role for curative-intent surgery? A narrative review.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
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  17. Influence of cancer-directed surgery on the prognosis of liver metastases from gastric cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Article
  18. Article
  19. Article
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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

9 authors at 3 institutions in 3 countries.

Thomas M PauschDepartment of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.ORCID 0000-0001-6145-3263
Xinchun LiuDepartment of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.ORCID 0000-0003-3796-9520
Jiaqu CuiDepartment of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.ORCID 0000-0003-4203-1406
Jishu WeiPancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Yi MiaoPancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
Ulrike HegerDepartment of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.
Pascal ProbstDepartment of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.
Stephen HeapStudy Center of the German Society of Surgery, University of Heidelberg, 69120 Heidelberg, Germany.ORCID 0000-0002-9285-2192
Thilo HackertDepartment of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.
Heidelberg University · DEJiangsu Province Hospital · CNGerman Society of Surgery · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Guidelines do not recommend resection surgery for oligometastatic pancreatic ductal adenocarcinoma (PDAC). However, reports in small samples of selected patients suggest that surgery extends survival. Thus, this study aims to gather evidence for the benefits of cancer-directed surgery (CDS) by analyzing a national cohort and identifying prognostic factors that aid the selection of candidates for CDS or recruitment into experimental trials. Data for patients with PDAC and hepatic metastasis were extracted from the population-based Surveillance, Epidemiology, and End Results database (SEER). The bias between CDS and non-CDS groups was minimized with Propensity Score Matching (PSM), and the prognostic role of CDS was investigated by comparing Kaplan-Meier estimators and Cox proportional hazard models. A total of 12,018 patients were extracted from the database, including 259 patients who underwent CDS that were 1:1 propensity score-matched with patients who did not receive CDS. CDS appeared to significantly prolong median overall survival from 5 to 10 months. Multivariate analysis revealed chemotherapy as a protective prognostic, whilst survival was impaired by old age and tumors that were poorly differentiated (Grades III-IV). These factors can be used to select patients likely to benefit from CDS treatment, which may facilitate recruitment into randomized controlled trials.

Indexed as

cancer-directed surgeryliver metastasisoverall survivalpancreatic adenocarcinomaSEER

Identifiers

PMID35008223
PMCPMC8750488
OpenAlexW4200031759

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.