Evidence map›Paper›PMID 41099959›Full record

ArticleAnnals of surgical oncology2026

Association Between Fragmentation of Care and Delivery of Adjuvant Chemotherapy in Patients Traveling to High-Volume Hospitals for Pancreatic Adenocarcinoma.

Alexa J Hughes, Kristen N Kaiser, Emma Holler, Brian M Ruedinger, Anita A Turk, Cary Jo R Schlick, Michael G House, Karl Y Bilimoria, Ryan J Ellis

Abstract read
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. [Centralization of liver surgery in Germany].Chirurgie (Heidelberg, Germany) · 2026
    Review
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.

Alexa J HughesSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Kristen N KaiserSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Emma HollerSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Brian M RuedingerSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Anita A TurkDivision of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
Cary Jo R SchlickSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Michael G HouseSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Karl Y BilimoriaSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA.
Ryan J EllisSurgical Outcomes and Quality Improvement Center (SOQIC), Department of Surgery, Indiana School of Medicine, Indianapolis, IN, USA. ellisrj@iu.edu.

Funding

Surgical Oncology Research Training at Indiana (SORTI)T32CA282070 · NCI · INDIANA UNIVERSITY INDIANAPOLIS · PI KARL Y BILIMORIA, Harikrishna Nakshatri · 2024 to 2026
$1.5M
NCI NIH HHS T32 CA282070
6 · The paper itself

Abstract

backgroundSurgical care for pancreatic ductal adenocarcinoma (PDAC) is increasingly centralized to high-volume hospitals (HVHs), prompting many patients to travel farther for resection. While surgery is centralized, adjuvant chemotherapy is often delivered locally, resulting in care fragmentation. The implications of this separation on chemotherapy receipt and survival are unclear. This study evaluated associations between travel distance, care fragmentation, and receipt of adjuvant chemotherapy in patients undergoing upfront PDAC resection at HVHs and assessed how these factors influenced overall survival.

methodsPatients with non-metastatic PDAC who underwent upfront resection at HVHs (≥20 pancreatectomies/year) were identified from the National Cancer Database (2007-2021). The cohort was stratified by adjuvant chemotherapy receipt, travel distance (deciles D1-D10), and care fragmentation. Multivariable logistic regression assessed factors associated with chemotherapy receipt; Cox proportional hazards models evaluated survival.

resultsAmong 17,807 patients treated at 97 HVHs, 10,200 (57%) received adjuvant chemotherapy. Patients traveling ≥14 miles (≥D4) were less likely to receive adjuvant chemotherapy (D4 odds ratio [OR] 0.85; 95% confidence interval [CI] 0.73-0.99; P=0.04). Patients experiencing care fragmentation were more likely to receive adjuvant therapy (64.3% vs. 54.4%, OR 1.51; 95% CI 1.35-1.69; P<0.001). Travel ≥20 miles (≥D5) was associated with higher mortality (hazards ratio [HR] 1.12; 95% CI 1.02-1.23; P=0.01). Conversely, receipt of adjuvant chemotherapy (HR 0.77; 95% CI 0.73-0.81; P<0.001) and fragmented care (HR 0.89; 95% CI 0.84-0.93; P<0.001) were associated with improved survival.

conclusionsLonger travel distance was associated with lower chemotherapy receipt and worse survival. Care fragmentation was linked to improved treatment access and survival, underscoring the need for coordinated cross-institutional care.

Indexed as

Carcinoma, Pancreatic DuctalDelivery of Health CareHealth Services AccessibilityHospitals, High-VolumePancreatic NeoplasmsTravelAgedChemotherapy, AdjuvantFemaleFollow-Up StudiesHumansMaleMiddle AgedPancreatectomyPrognosisSurvival RateAdjuvant chemotherapyCare fragmentationHealth care accessHigh-volume hospitalsPancreatic ductal adenocarcinomaTravel distance

Identifiers

PMID41099959
PMCPMC12765744

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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.