Evidence map›Paper›PMID 33708845›Full record

ArticleAnnals of translational medicine2021

Skip metastasis in mediastinal lymph node is a favorable prognostic factor in N2 lung cancer patients: a meta-analysis.

Zihuai Wang, Jiahan Cheng, Wenyu Huang, Diou Cheng, Yilin Liu, Qiang Pu, Nathan E Reticker-Flynn, Lunxu Liu

Abstract read
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Article in Annals of translational medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

9 citing papers in PubMed.

  1. Adjuvant alectinib versus crizotinib in completely resectedTranslational lung cancer research · 2026
    Article
  2. Skip N2 Metastasis in Resected Lung Cancer: Prognostic Subclassification by Lymphatic Drainage and Histology.Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia · 2026
    Article
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  8. [Review for N2 Sub-staging in Non-small Cell Lung Cancer].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2022
    Article
  9. Article
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

8 authors.

Zihuai WangDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Jiahan ChengDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Wenyu HuangWest China School of Medicine, Sichuan University, Chengdu, China.
Diou ChengWest China School of Medicine, Sichuan University, Chengdu, China.
Yilin LiuWest China School of Medicine, Sichuan University, Chengdu, China.
Qiang PuDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Nathan E Reticker-FlynnDepartment of Pathology, School of Medicine, Stanford University, Palo Alto, CA, USA.
Lunxu LiuDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSkip metastasis is a common lymph node metastatic pattern in non-small cell lung cancer (NSCLC). The relationship between skip metastasis and specific clinicopathologic factors and the prognostic value of skip metastasis are controversial.

methodsA systematic search and analysis of skip metastasis in NSCLC was conducted in the databases of PubMed, EMBASE, and Web of Science up to Dec 2019. Summarized hazard ratio (HR), mean difference (MD), and odds ratio (OR) with associated 95% confidence intervals (CI) were evaluated to investigating the relationship between skip metastasis and overall survival (OS), disease-free survival (DFS), recurrence-free survival (RFS) and clinicopathological features in NSCLC.

results29 studies with a total of 1,806 skip and 4,670 non-skip N2 patients were included. The upper lobe tumor showed a higher rate of skip metastasis compared with lower lobe one (RR =1.16, 95% CI: 1.00-1.34, P=0.044, I

conclusionsThe results indicate that the presence of skip metastasis is associated with a marked increase in survival of NSCLC patients compared to patients with non-skip N2 metastasis. These results suggest that skip metastasis might be a distinct subgroup for purposes of N staging of NSCLC patients, and intrapulmonary lymph node assessment is needed.

Indexed as

Non-small cell lung cancer (NSCLC)prognosisskip metastasis

Identifiers

PMID33708845
PMCPMC7940896

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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.