Evidence map›Paper›PMID 34663403›Full record

ArticleJournal of cardiothoracic surgery2021

Risk factors for lymph node metastasis and surgical scope in patients with cN0 non-small cell lung cancer: a single-center study in China.

Bu Jianlong, Zhang Pinyi, Wu Xiaohong, Zhao Su, Pang Sainan, Ning Jinfeng, Xu Shidong

Open access · goldAbstract read
In one paragraph

Article in Journal of cardiothoracic surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.6field-weighted citation impact, top 15% 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, 11 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Bu JianlongDepartment of Thoracic Surgery, Harbin Medical University Cancer Hospital, Nangang District, Harbin, 150081, China.
Zhang PinyiDepartment of Anesthesiology, Harbin Medical University Cancer Hospital, Harbin, China.
Wu XiaohongDepartment of Anesthesiology, Harbin Medical University Cancer Hospital, Harbin, China.
Zhao SuDepartment of Thoracic Surgery, Harbin Medical University Cancer Hospital, Nangang District, Harbin, 150081, China.
Pang SainanDepartment of Thoracic Surgery, Harbin Medical University Cancer Hospital, Nangang District, Harbin, 150081, China.
Ning JinfengDepartment of Thoracic Surgery, Harbin Medical University Cancer Hospital, Nangang District, Harbin, 150081, China. ningjinfenghyd@163.com.
Xu ShidongDepartment of Thoracic Surgery, Harbin Medical University Cancer Hospital, Nangang District, Harbin, 150081, China. xusd163@163.com.
Harbin Medical University · CNThird Affiliated Hospital of Harbin Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is difficult to determine the lymph node metastasis of patients with clinically negative lymph nodes (cN0) non-small cell lung cancer (NSCLC) before surgery. The purpose of this study is to investigate risk factors of lymph node metastasis in cN0 NSCLC, thereby to identify the surgical indications for lymph node dissection in cN0 NSCLC.

methodsWe conducted a retrospective study of patients with tumor size ≤ 30 mm who underwent radical resection of NSCLC. Binary logistic regression analysis was applied to predict risk factors for lymph node metastasis, and subject operating characteristics (ROC) curve was used to evaluate the independent risk factors.

resultsOverall, 44 patients (6.8%) with cN0 NSCLC had lymph node metastasis. Factors of tumor consolidation diameter (p < 0.001) and preoperative serum carcinoembryonic antigen (CEA) level (p = 0.017) are independent risk factors lymph node metastasis in cN0 NSCLC. The ROC curve showed that the cut-off value of consolidation diameter was 16.5 mm, and the area under the curve (AUC) was 0.825 (p < 0.001, 95% CI 0.780-0.870); the cut-off value of serum CEA level was 1.765 μg/L, and the AUC was 0.661 (p < 0.001, 95% CI: 0.568-0.754). Moreover, 8 of 461 patients with tumor parenchyma ≤ 16.5 mm had lymph node metastasis, and 36 of 189 patients with tumor parenchyma > 16.5 mm had lymph node metastasis.

conclusionTumor consolidation diameter and preoperative serum CEA are independent factors to predict cN0 NSCLC with tumor size ≤ 30 mm. For patients with tumor parenchyma > 16.5 mm, the probability of lymph node metastasis is higher and lymph node dissection is recommended. For patients with tumor parenchyma ≤ 16.5 mm, the probability of lymph node metastasis is lower and lymph node sampling is feasible.

Indexed as

Carcinoma, Non-Small-Cell LungLung NeoplasmsChinaHumansLymphatic MetastasisLymph NodesRetrospective StudiesRisk FactorsGround-glass opacity, GGOLymph node metastasisNon-small cell lung cancer, NSCLC

Identifiers

PMID34663403
PMCPMC8522086
OpenAlexW3193510428

What OpenQuestion holds

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LicenceCC BY
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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.