Evidence map›Paper›PMID 34837132›Full record

ArticleAnnals of surgical oncology2022

Optimal Region of Lymph Node Dissection in Distal Pancreatectomy for Left-Sided Pancreatic Cancer Based on Tumor Location.

Hiroyuki Ishida, Toshiro Ogura, Amane Takahashi, Ryoichi Miyamoto, Shinichi Matsudaira, Katsumi Amikura, Minoru Tanabe, Yoshiyuki Kawashima

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Article in Annals of surgical oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.0field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

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  9. Surgical management of pancreatic ductal adenocarcinoma: a narrative review.Translational gastroenterology and hepatology · 2023
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Hiroyuki IshidaDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Toshiro OguraDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan. mexicouxmal@gmail.com.
Amane TakahashiDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Ryoichi MiyamotoDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Shinichi MatsudairaDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Katsumi AmikuraDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Minoru TanabeDepartment of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and Dental University, Bunkyo ku, Tokyo, Japan.
Yoshiyuki KawashimaDepartment of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan.
Saitama Cancer Center · JPTokyo Medical and Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe optimal lymph node (LN) dissection for left-sided pancreatic cancer based on tumor location has remained unknown. In particular, the efficacy of LN dissection around the common hepatic artery and the celiac axis for distal tumors has not been established. This study was designed to elucidate the frequency and prognostic impact of LN metastasis, focusing on tumor location.

methodsData from 110 patients with invasive pancreatic cancer who underwent distal pancreatectomy between 2007 and 2020 were collected. We used a quantitative value-the distance between the left side of the portal vein and the right side of tumor (DPT)-to define the tumor location. LN stations were divided into two groups: peripancreatic lymph nodes (PLN) and non-PLN. We then analyzed the frequency of LN metastasis based on the tumor location and prognostic factors.

resultsNon-PLN metastasis was observed in 7.3% of patients. Non-PLN metastasis was found only in patients with a DPT < 20 mm. Patients with non-PLN metastasis exhibited a significantly worse prognosis than those with only-PLN metastasis (median survival time: 20.3 vs. 42.5 months, p = 0.048). Multivariate analysis for survival indicated that tumor size > 4 cm (hazard ratio [HR]: 2.23, p = 0.012) and metastasis in the non-PLN region (HR: 3.02, p = 0.015), and inability to undergo adjuvant chemotherapy (HR: 2.81, p = 0.0018) were also associated with poor prognosis.

conclusionsDissection of the non-PLN region can be avoided in selected patients with DPT ≥ 20 mm.

Indexed as

PancreatectomyPancreatic NeoplasmsHumansLymphatic MetastasisLymph Node ExcisionLymph NodesNeoplasm StagingPrognosisRetrospective Studies

Identifiers

PMID34837132
OpenAlexW3217365359

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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.