Evidence map›Paper›PMID 30507005›Full record

ArticleThoracic cancer2019

Quantitative severity of pulmonary emphysema as a prognostic factor for recurrence in patients with surgically resected non-small cell lung cancer.

Seung Jun Lee, Jung Wan Yoo, Sunmi Ju, Yu Ji Cho, Jong Duk Kim, Sung Hwan Kim, In-Seok Jang, Bae Kwon Jeong, Gyeong-Won Lee, Yi Yeong Jeong and 4 more

Open access · goldAbstract read
In one paragraph

Article in Thoracic cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.4field-weighted citation impact, top 33% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

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  7. New developments in locally advanced nonsmall cell lung cancer.European respiratory review : an official journal of the European Respiratory Society · 2021
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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

14 authors at 2 institutions in 1 country.

Seung Jun LeeDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.ORCID 0000-0002-1849-5086
Jung Wan YooDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Sunmi JuDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Yu Ji ChoDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Jong Duk KimDepartment of Thoracic and Cardiovascular Surgery, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Changwon, South Korea.
Sung Hwan KimDepartment of Thoracic and Cardiovascular Surgery, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Changwon, South Korea.
In-Seok JangDepartment of Thoracic and Cardiovascular Surgery, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Changwon, South Korea.
Bae Kwon JeongDepartment of Radiation Oncology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.ORCID 0000-0001-8015-6061
Gyeong-Won LeeDepartment of Hematology and Oncology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Yi Yeong JeongDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Ho Cheol KimDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Kyungsoo BaeDepartment of Radiology, Gyeongsang National University Changwon Hospital, Changwon, Gyeongsang National University School of Medicine, Jinju, South Korea.
Kyung Nyeo JeonDepartment of Radiology, Gyeongsang National University Changwon Hospital, Changwon, Gyeongsang National University School of Medicine, Jinju, South Korea.ORCID 0000-0003-2267-0366
Jong Deog LeeDivision of Pulmonology and Allergy, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea.
Gyeongsang National University Hospital · KRChangwon National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPulmonary emphysema is a major component of chronic obstructive pulmonary disease and lung cancer. However the prognostic significance of quantitative emphysema severity in patients with lung cancer is unclear. We analyzed whether numerical emphysema value is a prognostic factor for recurrence in patients with surgically resected non-small cell lung cancer.

methodsWe quantified emphysema severity of the whole lung and regional lobes in 45 patients (mean age 68.0 years) using an automated chest computed tomography-based program. Predictive factors for recurrence were investigated using a Cox proportional hazards model. Recurrence-free and overall survival was compared after dichotomization of patients according to whole lung emphysema severity.

resultsThe mean percentage emphysema ratio of the whole lung was 1.21 ± 2.04. Regional lobar emphysema severity was highest in the right middle lobe (1.93 ± 0.36), followed by right upper (1.35 ± 2.50), left upper (1.34 ± 2.12), left lower (1.05 ± 2.52), and right lower (0.78 ± 2.28) lobes. The low severity group showed significantly longer overall survival compared to the high severity group (log-rank test, P = 0.018). Quantitative emphysema severity of the whole lung (hazard ratio 1.36; 95% confidence interval 1.0-1.73) and stage III (hazard ratio 6.17; 95% confidence interval 1.52-25.0) were independent predictors of recurrence after adjusting for age, gender, smoking status, and forced expiratory volume in one second.

conclusionThe severity of whole lung emphysema was independently associated with recurrence. Patients with non-small cell lung cancer and marginal pulmonary emphysema at lower severity survive longer after curative-intent surgery.

Indexed as

PrognosisAgedCarcinoma, Non-Small-Cell LungFemaleHumansKaplan-Meier EstimateLungMaleMiddle AgedNeoplasm Recurrence, LocalProportional Hazards ModelsPulmonary EmphysemaRespiratory Function TestsSmokingTomography, X-Ray ComputedEmphysemanon-small cell lung cancerrecurrencesurgical resectionsurvival

Identifiers

PMID30507005
PMCPMC6397901
OpenAlexW2902644229

What OpenQuestion holds

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LicenceCC BY-NC
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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.