Evidence map›Paper›PMID 32318943›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2021

Impact of Lymph Nodes Examined on Survival in ypN0 Gastric Cancer Patients: a Population-Based Study.

Zhu MingHua, Zhang KeCheng, Chang ZhenYu, Chen Lin, Wang ChunXi, Yang ZeLong

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In one paragraph

Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
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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

6 authors at 2 institutions in 1 country.

Zhu MingHua *Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.
Zhang KeCheng *Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.
Chang ZhenYuDepartment of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.
Chen LinDepartment of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.
Wang ChunXiDepartment of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China. bjwangcx@126.com.
Yang ZeLongDepartment of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China. bjhappyyzl@163.com.
Chinese People's Liberation Army · CNPeople's Liberation Army No. 150 Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOur aim was to evaluate the prognostic value of the number of lymph nodes examined (eLNs) on survival in ypN0 gastric cancer (GC) patients, and further to define the optimal number of lymph nodes needed to be examined during radical gastrectomy of ypN0 GC patients.

methodsA total of 1127 ypN0 GC patients during 2004-2015 from the Surveillance, Epidemiology, and End Results (SEER) database were included. The number of eLNs cutoff points that determined the greatest actuarial survival difference was calculated by the X-tile program. Univariate and multivariate analyses were performed to assess the impact of eLNs on overall survival (OS).

resultsThe optimal number of eLNs thresholds was determined to be 15 for ypN0 GC patients. Kaplan-Meier analysis revealed that ypN0 GC patients with ≥ 16 eLNs had a significantly better OS than those with ≤ 15 eLNs (5-year OS; 60.8 vs 45.4%, P < 0.001). Similarly, multivariate Cox analysis revealed that ypN0 GC patients with ≥ 16 eLNs experienced a significantly lower hazard of death than those with ≤ 15 eLNs (adjusted HR; 0.73, 95% CI, 0.60-0.90, P = 0.003).

conclusionsThe number of eLNs was an independent predictor of survival for ypN0 GC patients. A minimum of 15 eLNs is recommended as the cutoff point for the evaluation of the quality of postoperative or prognostic stratification in ypN0 GC patients.

Indexed as

Stomach NeoplasmsGastrectomyHumansLymph NodesNeoplasm StagingPrognosisSEER ProgramGastric cancerLymph nodes examinedNeoadjuvant therapyOverall survival

Identifiers

PMID32318943
OpenAlexW3016301476

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.