Evidence map›Paper›PMID 41538116›Full record

ArticleAnnals of surgical oncology2026

Improved Survival with Delayed Surgery at High-Volume Centers Versus Early Surgery at Low-Volume Centers for Pancreatic Cancer.

Sara Sakowitz, Mampei Yamashita, McKensie Hammons, Timothy R Donahue

Abstract readComparative Study
In one paragraph

Article in Annals of surgical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

4 authors.

Sara SakowitzDivision of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
Mampei YamashitaDivision of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
McKensie HammonsDivision of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
Timothy R DonahueDivision of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA. tdonahue@mednet.ucla.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough the relationship between higher surgical volume and improved outcomes for pancreatic operations is well established, centralizing care to high-volume centers (HVC) may prolong the interval from diagnosis to surgery. This study sought to compare outcomes of patients who had longer wait times for upfront surgery for pancreatic cancer (PDAC) at HVCs with those of patients who underwent earlier surgery at low-volume centers (LVCs).

methodsPatients undergoing upfront pancreatic surgery for T1-3N0-2M0 PDAC were identified from the 2004-2023 National Cancer Database. High-volume centers were defined using Leapfrog criteria as centers performing ≥ 20 pancreatic resections/year, with others defined as LVCs. Patients who waited more than 28 days for resection at HVCs were classified as "long wait/high volume," whereas those who underwent surgery in ≤ 14 days at LVCs were classified as "short wait/low volume."

resultsAmong 15,310 patients meeting the inclusion criteria, 9598 (63%) were short wait/low volume and 5712 (37%) were long wait/high volume. In unadjusted analysis, long wait/high volume demonstrated superior 5-year survival (23% vs. 19%, P < 0.001, log-rank). After comprehensive risk adjustment, waiting for surgery at an HVC remained associated with reduced mortality hazard during 5 years of follow-up evaluation (hazard ratio [HR], 0.81; 95% CI, 0.77-0.85; P < 0.001). Considering acute endpoints, the long-wait/high-volume group demonstrated greater likelihood of complete (R0) resection and reduced 30-day mortality, but higher risk of nodal disease and upstaging at resection.

conclusionWaiting for surgery at an HVC is associated with improved acute outcomes and superior overall survival compared with earlier operations at an LVC. These findings assuage concerns regarding the potential longer wait times for surgery associated with centralization of surgical care for PDAC.

Indexed as

Carcinoma, Pancreatic DuctalHospitals, High-VolumeHospitals, Low-VolumePancreatectomyPancreatic NeoplasmsTime-to-TreatmentAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedPrognosisSurvival RateTreatment DelayCentralization of careHigh volume centersLeapfrogPancreatic adenocarcinomaPancreatic cancerSurvival

Identifiers

PMID41538116
PMCPMC13083458

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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.