Evidence map›Paper›PMID 31722726›Full record

SynthesisJournal of cardiothoracic surgery2019

Meta-analysis of segmentectomy versus lobectomy for radiologically pure solid or solid-dominant stage IA non-small cell lung cancer.

Sunyin Rao, Lianhua Ye, Li Min, Guangqiang Zhao, Ya Chen, Yunchao Huang, Jichen Yang, Shouyong Xiao, Run Cao

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of cardiothoracic surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

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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

9 authors.

Sunyin RaoDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
Lianhua YeDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China. Lhye1204@aliyun.com.
Li MinDepartment of Respiratory Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
Guangqiang ZhaoDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
Ya ChenDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
Yunchao HuangDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
Jichen YangDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
Shouyong XiaoDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
Run CaoDepartment of Thoracic Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.

Funding

National Natural Science Foundation of China 81860325
6 · The paper itself

Abstract

objectiveWhether segmentectomy can be used to treat radiologically determined pure solid or solid-dominant lung cancer remains controversial owing to the invasive pathologic characteristics of these tumors despite their small size. This meta-analysis compared the oncologic outcomes after lobectomy and segmentectomy regarding relapse-free survival (RFS) and overall survival (OS) in patients with radiologically determined pure solid or solid-dominant clinical stage IA non-small cell lung cancer (NSCLC).

methodsA literature search was performed in the MEDLINE, EMBASE, and Cochrane Central databases for information from the date of database inception to March 2019. Studies were selected according to predefined eligibility criteria. The hazard ratio (HR) and associated 95% confidence interval (CI) were extracted or calculated as the outcome measure for data combining.

resultsSeven eligible studies published between 2014 and 2018 enrolling 1428 patients were included in the current meta-analysis. Compared with lobectomy, segmentectomy had a significant benefit on the RFS of radiologically determined pure solid or solid-dominant clinical stage IA NSCLC patients (combined HR: 1.46; 95% CI, 1.05-2.03; P = 0.024) and there were no significant differences on the OS of these patients (HR: 1.52; 95% CI, 0.95-2.43; P = 0.08).

conclusionsSegmentectomy leads to lower survival than lobectomy for clinical stage IA NSCLC patients with radiologically determined pure solid or solid-dominant tumors. Moreover, applying lobectomy to clinical stage IA NSCLC patients with radiologically determined pure solid or solid-dominant tumors (≤2 cm) could lead to an even bigger survival advantage. However, there are some limitations in the present study, and more evidence is needed to support the conclusion.

Indexed as

Neoplasm Recurrence, LocalCarcinoma, Non-Small-Cell LungDisease-Free SurvivalHumansLung NeoplasmsNeoplasm StagingPneumonectomySurvival RateLobectomyMeta-analysisNon-small cell lung cancerPrognosisPure solid or solid-dominantSegmentectomy

Identifiers

PMID31722726
PMCPMC6854787

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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.