Evidence map›Paper›PMID 33717592›Full record

ArticleJournal of thoracic disease2021

The significance of systematic lymph node dissection in surgery for early-stage non-small cell lung cancer patients aged ≤40 years.

Zhi-Yi Guo, Jiang-Hao Ren, Yuan-Yuan Xu, Rui-Jun Liu, Hui Tao, Jia Huang, Qiang Tan

Open access · diamondAbstract read
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Article in Journal of thoracic disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

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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

2 citing papers in PubMed, 4 citations in OpenAlex.

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4 · The record

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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

7 authors at 2 institutions in 1 country.

Zhi-Yi GuoShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Jiang-Hao RenShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Yuan-Yuan XuShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Rui-Jun LiuShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Hui TaoShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Jia HuangShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Qiang TanShanghai Lung Cancer Center, Shanghai Chest Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
Shanghai Chest Hospital · CNShanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSurgery remains the best option for treating early-stage non-small cell lung cancer (NSCLC), and lymph node dissection (LND) is an important step in this approach. However, the extent of LND in the general age population, especially in young patients, is controversial. This retrospective study aimed to investigate the correlation between systematic lymph node dissection (SLND) and prognosis in young (≤40 years) patients with stage IA NSCLC.

methodsClinicopathological data of 191 patients aged ≤40 years who underwent surgical pulmonary resection for stage IA NSCLC between January 2010 and December 2016 were retrospectively collected. Of the patients, 104 received SLND (SLND group), while the other 87 patients underwent sampling or no LND (non-SLND group). The disease-free survival (DFS) and overall survival (OS) curves of the patients from each group were plotted using the Kaplan-Meier method, and the correlations of the patients' clinical factors with prognosis were also analyzed.

resultsThe median follow-up period was 55 months. During follow-up, 7 patients died, and recurrence or metastasis was detected in 16 patients. Kaplan-Meier analysis revealed no difference in DFS (P=0.132) between the SLND and non-SLND group, but a significant difference was found between the groups in OS (P=0.022). Additionally, there was no statistically pronounced difference in OS or DFS between male and female patients. Multivariate survival analysis showed that the type of SLND, as well as tumor size, is an independent prognostic factor for DFS (HR, 3.530; 95% CI, 1.120-11.119; P=0.031) and OS (HR, 13.076; 95% CI, 1.209-141.443; P=0.034).

conclusionsFor young (age ≤40) stage IA NSCLC patients with pathological invasive adenocarcinoma, intraoperative SLND can improve the DFS and OS. Further studies are needed to verify the most optimal degree of LND in young patients.

Indexed as

Early-stage non-small cell lung cancer (early-stage NSCLC)lymph node dissectionprognosisyoung patients

Identifiers

PMID33717592
PMCPMC7947521
OpenAlexW3133875419

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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.