Evidence map›Paper›PMID 24841347›Full record

ArticleAnnals of surgical oncology2014

Impact of extent of surgery on survival in patients with small nonfunctional pancreatic neuroendocrine tumors in the United States.

Lauren Gratian, John Pura, Michaela Dinan, Sanziana Roman, Shelby Reed, Julie Ann Sosa

Registry-linked trialAbstract read
In one paragraph

Article in Annals of surgical oncology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05907824 (Long-term Prognosis Comparison Between Parenchyma-sparing and Oncologic Resections for Non-functional Neuroendocrine Tumors of the Pancreatic Body and Tail ≤ 3cm), which is not on this map. Cited by 80 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed, 6 pooled it
–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.

NCT05907824 unknown statusnot on this mapstarted 2023, after this paper: background citation

Long-term Prognosis Comparison Between Parenchyma-sparing and Oncologic Resections for Non-functional Neuroendocrine Tumors of the Pancreatic Body and Tail ≤ 3cm: a Real-world Data Study

TypeobservationalSponsorFudan UniversityRan2023 to 2023Enrolled800ConditionsNon Functioning Pancreatic Endocrine TumorArmsHistopathological review, long-term prognosis and quality of life follow-up
3 · Its place in the literature

Who cites it

80 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Pancreatic Neuroendocrine Tumors (panNETs): Analysis of Overall Survival of Nonsurgical Management Versus Surgical Resection.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2017
    Pooled it
  7. Article
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  13. Prospective study on stereotactic body radiotherapy for small pancreatic neuroendocrine tumors: tolerance and effectiveness analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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20 more citing papers are in PubMed but not listed here.

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

6 authors.

Lauren GratianDivision of Endocrinology Department of Medicine, Duke University School of Medicine, Durham, NC, USA.
John Pura
Michaela Dinan
Sanziana Roman
Shelby Reed
Julie Ann Sosa

Funding

Women's Cancer Research ProgramP30CA014236 · NCI · DUKE UNIVERSITY · PI JOHN N. NORTON · 1985 to 2026
$174.8M
NCI NIH HHS P30 CA014236
6 · The paper itself

Abstract

backgroundNonfunctional pancreatic neuroendocrine tumors (PNETs) ≤2 cm have uncertain malignant potential, and optimal treatment remains unclear. Objectives of this study were to better understand their malignant potential, determine whether extent of surgery or lymph node dissection is associated with overall survival (OS), and identify other factors associated with OS.

methodsPatients with nonfunctional PNETs ≤2 cm were identified from the National Cancer Data Base (1998 to 2011). Descriptive statistics were used for patient characteristics and surgical resection patterns. Five-year OS was estimated using Kaplan-Meier analyses across extent of surgery and compared using the log-rank test. Cox proportional regression modeling was used to test the association between survival and extent of surgery.

resultsA total of 1854 patients with nonfunctional PNETs ≤2 cm were included. From 1998 to 2011, these tumors increased three-fold as a proportion of all PNETs. Among tumors ≤0.5 cm, 33 % presented with regional lymph node metastases and 11 % with distant metastases. Five-year OS for patients not undergoing surgery was 27.6 % vs. 83.0 % for partial pancreatectomy, 72.3 % for pancreaticoduodenectomy, and 86.0 % for total pancreatectomy (p < 0.01). Multivariate analysis demonstrated no difference in OS based on type of surgery or the addition of regional lymphadenectomy (p = 0.16). Younger age and later year of diagnosis were independently associated with improved survival.

conclusionsSmall nonfunctional PNETs represent an increasing proportion of all PNETs and have a significant risk of malignancy. Survival is improving over time despite older age at diagnosis. Type of surgical resection and the addition of lymph node resection were not associated with OS.

Indexed as

AgedCarcinoma, Small CellCohort StudiesFemaleFollow-Up StudiesHumansLymph Node ExcisionMaleMiddle AgedNeoplasm StagingNeuroendocrine TumorsPancreatectomyPancreatic NeoplasmsPancreaticoduodenectomyPrognosisSurvival Rate

Identifiers

PMID24841347
PMCPMC4510956

What OpenQuestion holds

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Registered trials

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.