Evidence map›Paper›PMID 38976138›Full record

ArticleGeneral thoracic and cardiovascular surgery2025

Comparison of segmentectomy and wedge resection for cT1cN0M0 non-small cell lung cancer.

Satoshi Takamori, Makoto Endo, Jun Suzuki, Hikaru Watanabe, Satoshi Shiono

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in General thoracic and cardiovascular surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

5 authors.

Satoshi TakamoriDepartment of Surgery II, Faculty of Medicine, Yamagata University, 2-2-2 Iida-Nishi, Yamagata, 990-9585, Japan.
Makoto EndoDepartment of Thoracic Surgery, Yamagata Prefectural Hospital, 1800, Oazaaoyagi, Yamagata, 990-2292, Japan.
Jun SuzukiDepartment of Surgery II, Faculty of Medicine, Yamagata University, 2-2-2 Iida-Nishi, Yamagata, 990-9585, Japan.
Hikaru WatanabeDepartment of Surgery II, Faculty of Medicine, Yamagata University, 2-2-2 Iida-Nishi, Yamagata, 990-9585, Japan.
Satoshi ShionoDepartment of Surgery II, Faculty of Medicine, Yamagata University, 2-2-2 Iida-Nishi, Yamagata, 990-9585, Japan. s-shiono@med.id.yamagata-u.ac.jp.ORCID http://orcid.org/0000-0003-4087-635X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveSublobar resection is considered a standard surgical procedure for early non-small cell lung cancer, although the survival of patients undergoing sublobar resection for clinical T1cN0M0 non-small cell lung cancer remains unclear. This study aimed to compare survival between segmentectomy and wedge resection for clinical T1cN0M0 non-small cell lung cancer.

methodsThis retrospective study included patients who had undergone curative surgery for cT1cN0M0 stage IA3 non-small cell lung cancer. The overall and recurrence-free survival rates of 91 patients who underwent segmentectomy or wedge resection were compared.

resultsThirty-nine (42.9%) and 52 patients (57.1%) were included in the segmentectomy and wedge resection groups, respectively. The median length of follow-up was 6.0 years (95% confidence interval 4.2 - - years) (Kaplan-Meier estimate). The 5 year overall survival rates were not significantly different between the segmentectomy and wedge resection groups (67.7% vs 52.0%, P = 0.132). The 5 year recurrence-free survival rate was worse in the wedge resection group than in the segmentectomy group (66.6% vs 46.9%, P = 0.047). In univariable analysis, spread through air spaces (hazard ratio, 5.889; 95% confidence interval, 2.357-14.715; P < 0.001) was an important prognostic factor for recurrence-free survival in the wedge resection group.

conclusionsThe overall survival of patients who underwent segmentectomy for clinical T1cN0M0 non-small cell lung cancer was not significantly different from that of patients who underwent wedge resection. However, patients with cT1cN0M0 non-small cell lung cancer who underwent wedge resection tended to have a worse recurrence-free survival prognosis than those who underwent segmentectomy.

Indexed as

Carcinoma, Non-Small-Cell LungLung NeoplasmsPneumonectomyAgedDisease-Free SurvivalFemaleHumansKaplan-Meier EstimateMaleMiddle AgedNeoplasm Recurrence, LocalNeoplasm StagingRetrospective StudiesRisk FactorsTime FactorsTreatment OutcomeLung cancerSegmentectomyWedge resection

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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.