Evidence map›Paper›PMID 37720592›Full record

ArticleTherapeutic advances in chronic disease2023

Effect of postoperative radiotherapy on survival in patients with completely resected and pathologically confirmed stage N2 non-small-cell lung cancer: a systematic review and meta-analysis.

Lin Wang, Wenyu Chen, Xiaofei Xu, Wenbo Chen, Derong Bao, Ye Zhang, Yufen Xu

Abstract read
In one paragraph

Article in Therapeutic advances in chronic disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
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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.

Lin WangDepartment of Oncology, Affiliated Hospital of Jiaxing University, Jiaxing, China.
Wenyu ChenDepartment of Respiratory Medicine, Affiliated Hospital of Jiaxing University, Jiaxing, China.
Xiaofei XuDepartment of Oncology, Affiliated Hospital of Jiaxing University, Jiaxing, China.
Wenbo ChenDepartment of Oncology, Affiliated Hospital of Jiaxing University, Jiaxing, China.
Derong BaoDepartment of Oncology, Affiliated Hospital of Jiaxing University, Jiaxing, China.
Ye ZhangDepartment of General Medicine, Affiliated Hospital of Jiaxing University, No. 1882, Zhonghuan South Road, Nanhu District, Jiaxing, Zhejiang 314001, China.ORCID https://orcid.org/0000-0001-9740-1502
Yufen XuDepartment of Oncology, Affiliated Hospital of Jiaxing University, No. 1882, Zhonghuan South Road, Nanhu District, Jiaxing, Zhejiang 314001, China.ORCID https://orcid.org/0000-0002-0858-5715

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The role of postoperative radiotherapy (PORT) for patients with completely resected stage N2 non-small-cell lung cancer (NSCLC) has been controversial. This study aimed to investigate the efficacy of PORT and prognosis in these patients. Objectives: An updated meta-analysis was conducted in this study to investigate the efficacy of PORT and prognosis in patients with completely resected and pathologically confirmed stage N2 NSCLC. Design: This study is a systematic review and meta-analysis. Data source and methods: Databases were searched up to 2 March 2022. All trials on patients with completely resected and pathologically confirmed stage N2 NSCLC undergoing PORT were screened, and data indicators in the PORT and non-PORT groups were extracted, respectively. The effect of PORT on overall survival (OS), disease-free survival (DFS), local recurrence-free survival (LRFS), and distant metastasis-free survival (DMFS) was estimated. Subgroup and sensitivity analyses were performed. Results: In all, 20 studies involving 6340 patients were finally included. The PORT significantly increased OS [hazard ratio (HR) = 0.77, 95% CI: 0.71-0.84, Conclusion: Our results suggest that in the postoperative treatment of patients with completely resected and pathologically confirmed stage N2 NSCLC, the addition of PORT provides better local recurrence control and survival benefit, but no benefit for distant metastases. The PORT may be incorporated into the postoperative treatment options for some patients with high-risk factors. However, it needs to be validated by more prospective studies in the future. Trail registration: CRD42022314095.

Indexed as

N2non-small-cell lung cancerpostoperative radiotherapysurvival

Identifiers

PMID37720592
PMCPMC10501070

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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.