Evidence map›Paper›PMID 27714644›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2016

Prognostic Value of Lymph Node Status and Extent of Lymphadenectomy in Pancreatic Neuroendocrine Tumors Confined To and Extending Beyond the Pancreas.

Claudius Conrad, Onur C Kutlu, Arvind Dasari, Jennifer A Chan, Jean-Nicolas Vauthey, David B Adams, Michael Kim, Jason B Fleming, Matthew H G Katz, Jeffrey E Lee

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Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.

  1. Pooled it
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  5. Surgical and Endoscopic Resection of Duodenal Neuroendocrine Tumors Have Similar Disease-Specific Survival Outcome.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
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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

10 authors at 3 institutions in 1 country.

Claudius ConradDepartment of Surgical Oncology, Section of Hepato-Pancreato-Biliary Surgery, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, Houston, TX, 77030, USA. cconrad1@mdanderson.org.
Onur C KutluDivision of Gastrointestinal and Laparoscopic Surgery, Medical University of South Carolina, Charleston, SC, USA.
Arvind DasariDepartment of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Jennifer A ChanDepartment of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
Jean-Nicolas VautheyDepartment of Surgical Oncology, Section of Hepato-Pancreato-Biliary Surgery, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, Houston, TX, 77030, USA.
David B AdamsDivision of Gastrointestinal and Laparoscopic Surgery, Medical University of South Carolina, Charleston, SC, USA.
Michael KimDepartment of Surgical Oncology, Section of Hepato-Pancreato-Biliary Surgery, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, Houston, TX, 77030, USA.
Jason B FlemingDepartment of Surgical Oncology, Section of Hepato-Pancreato-Biliary Surgery, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, Houston, TX, 77030, USA.
Matthew H G KatzDepartment of Surgical Oncology, Section of Hepato-Pancreato-Biliary Surgery, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, Houston, TX, 77030, USA.
Jeffrey E LeeDepartment of Surgical Oncology, Section of Hepato-Pancreato-Biliary Surgery, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, Houston, TX, 77030, USA.
The University of Texas MD Anderson Cancer Center · USMedical University of South Carolina · USHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe impact of lymph node (LN) status and lymphadenectomy (LA) on survival in pancreatic neuroendocrine tumors (pNETs) remains controversial. We evaluated the impact of tumor extension and grade on nodal metastasis and survival.

methodsSurgical pNET patients were queried in the Surveillance Epidemiology and End Results (SEER) database (1998-2012, N = 981). Factors associated with LN status were analyzed by logistic regression and by Cox analyses.

resultsFor T1-T2 tumors, N status was associated only with tumor size. N status (p = 0.001), grade (p < 0.001), age (p = 0.001), and sex (p = 0.007) predicted overall survival (OS). For T3-T4, grade (p < 0.001), sex (p = 0.004), size (p = 0.013), and age (p = 0.007) but not N status (p = 0.789) predicted OS. For T1-T2, disease-specific survival (DSS; p = 0.003) and OS (p = 0.008) were longer for N0 vs N1, while N0 vs NX had similar OS (p = 0.59) and DSS (p = 0.80). While a difference was seen in DSS for NX vs N1 (p = 0.04), no significant difference in OS was seen (p = 0.08). For T3-T4, N status did not affect DSS (p = 0.365) or OS (p = 0.454). For all T groups and any N status, extended LA (≥10 nodes resected) was not associated with OS.

conclusionWhile in T1-T2 pNET N1 status is a predictor of negative OS, similar outcome between NX and N0 supports limited LN resection in selected patients. Extended LA is unlikely to be helpful in T3-T4.

Indexed as

Lymph Node ExcisionAdultAgedAged, 80 and overAge FactorsFemaleHumansLymphatic MetastasisLymph NodesMaleMiddle AgedNeoplasm GradingNeoplasm StagingNeuroendocrine TumorsPancreatic NeoplasmsPrognosisExtend of lymphadenectomyLymph node metastasisLymph node statusPancreatic neuroendocrine tumorpNETPrognosticationSEER

Identifiers

PMID27714644
OpenAlexW2528646730

What OpenQuestion holds

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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.