Evidence map›Paper›PMID 34522998›Full record

ReviewAnnals of surgical oncology2022

Does the Volume-Outcome Association in Pancreas Cancer Surgery Justify Regionalization of Care? A Review of Current Controversies.

Alexandra W Acher, Sharon M Weber, Timothy M Pawlik

Abstract readReview
PubMed Publisher
In one paragraph

Review in Annals of surgical oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.0field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 28 citations in OpenAlex.

  1. Assessing the interplay of operative volume at the hospital and surgeon level for pancreatic cancer.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2026
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  12. Could global surgery overcome a decline in surgical cases?Annals of medicine and surgery (2012) · 2022
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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

3 authors at 2 institutions in 1 country.

Alexandra W AcherDivision of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
Sharon M WeberDivision of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
Timothy M PawlikDepartment of Surgery, The Ohio State University College of Medicine, The James Comprehensive Cancer Center, Columbus, OH, USA. Tim.Pawlik@osumc.edu.ORCID http://orcid.org/0000-0002-7994-9870
University of Wisconsin–Madison · USThe Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIncreasing hospital or surgeon volume is associated with improved outcomes among patients with pancreatic cancer. Promotion of regionalized care is based on this volume-outcome association. However, other research has exposed nuances and complexities inherent to this association that should be considered when promoting regionalized care models. We herein provide a critical review of the literature on the volume-outcome association and a discussion of areas of ongoing controversy.

methodsA PubMed literature search was conducted for the years 1995-2020. Peer reviewed original research studies were selected for critical review based on study design, potential to draw meaningful conclusions from the data, and discussion of current knowledge gaps.

resultsBased on the cumulative published literature, hospital/surgeon volume and patient mortality are inversely related. However, it remains unclear whether volume is a proxy for other more causative variables inherent in high-volume centers. Interpretation of the volume-outcome association is made more difficult to interpret due to the large variation in the definition of high volume, difficulty in isolating the individual impact of surgeon versus hospital volume, challenges in quantifying health system processes related to volume, and the fact that some low-volume centers consistently achieve excellent clinical results. Implementation of true regionalized care models has been rare, likely reflecting both health system and patient level challenges.

conclusionThe volume-outcome association has been consistently demonstrated to be important to the care of patients with pancreas cancer. The underlying mechanism of this association to explain the overall benefit is likely multifactorial. Better understanding of what drives the volume-outcome association may increase access to optimized care for a broader range of hospital systems and patients.

Indexed as

Pancreatic NeoplasmsSurgeonsAbdomenHospitalsHumans

Identifiers

PMID34522998
OpenAlexW3200446716

What OpenQuestion holds

Textmetadata
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.