Evidence map›Paper›PMID 40879775›Full record

ArticleSurgical endoscopy2025

Laparoscopic enucleation vs. pancreatectomy for small pancreatic neuroendocrine neoplasms: long-term functional and oncological outcomes.

Takayuki Miura, Shuichi Aoki, Shimpei Maeda, Masaharu Ishida, Masamichi Mizuma, Kiyoshi Kume, Keigo Murakami, Atsushi Masamune, Toru Furukawa, Takashi Kamei and 1 more

Abstract readComparative Study
In one paragraph

Article in Surgical endoscopy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Observational
  3. 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

11 authors.

Takayuki MiuraDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan. takayuki.miura.c1@tohoku.ac.jp.ORCID http://orcid.org/0000-0002-9744-5537
Shuichi AokiDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
Shimpei MaedaDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
Masaharu IshidaDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
Masamichi MizumaDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
Kiyoshi KumeDepartment of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Keigo MurakamiDepartment of Investigative Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Atsushi MasamuneDepartment of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Toru FurukawaDepartment of Investigative Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan.
Takashi KameiDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
Michiaki UnnoDepartment of Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic surgery is being increasingly used for pancreatic neuroendocrine neoplasms (PanNENs). Although laparoscopic regular pancreatectomy (LRP) is frequently performed, laparoscopic enucleation (LE), a parenchyma-sparing technique, may be better in preserving pancreatic endocrine function. However, limited evidence is available regarding the long-term oncological and endocrine outcomes of these two laparoscopic methods. This study aimed to compare the surgical and prognostic outcomes and endocrine function preservation in patients undergoing LE and LRP for well-differentiated, non-invasive PanNEN.

methodsThis retrospective cohort study included 67 consecutive patients who underwent laparoscopic surgery for small (< 2 cm) well-differentiated PanNEN at Tohoku University Hospital between January 2001 and December 2021. LE was performed for small tumors (< 2 cm) located away (> 3 mm) from the main pancreatic duct. Clinical characteristics, surgical details, tumor characteristics, postoperative complications, recurrence-free survival (RFS), overall survival (OS), and long-term endocrine function were retrospectively analyzed. Kaplan-Meier analysis, Cox regression, and the Mann-Whitney U test were used for statistical comparisons.

resultsThe median follow-up was 78.1 months for LRP and 135.4 months for LE. No significant differences were observed between the two groups in terms of the operative time, blood loss, or postoperative complications. Five-year RFS was excellent and comparable in both groups (LE, 100%, LRP 96.0%; P = 0.313). Notably, LE was associated with a significantly reduced incidence of postoperative new-onset diabetes mellitus (NODM) compared to LRP (5-year cumulative incidence: 9.1% vs. 43.2%; P = 0.0181). Multivariate analysis identified LRP (hazard ratio [HR] = 7.71, 95% confidence interval [CI]:1.03-57.8; P = 0.0469), older age (> 60 years) (HR = 4.49, 95% CI 1.62-12.4; P = 0.0039), and non-functional tumor (HR = 2.78, 95% CI 1.08-7.19; P = 0.0342) as independent predictors of NODM.

conclusionGiven appropriate patient selection, LE of small well-differentiated PanNENs provides comparable oncological outcomes, perioperative safety, and superior long-term endocrine function preservation compared to LRP.

Indexed as

LaparoscopyNeuroendocrine TumorsPancreatectomyPancreatic NeoplasmsAdultAgedFemaleHumansMaleMiddle AgedPostoperative ComplicationsRetrospective StudiesTreatment OutcomeEndocrine insufficiencyLaparoscopic enucleationLaparoscopic regular pancreatectomyPancreatic neuroendocrine neoplasms

Identifiers

PMID40879775
PMCPMC12618291

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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.