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Clinical features of lung cancer in smokers with light and mild chronic obstructive pulmonary disease: a retrospective analysis of Japanese surgical cases.
MedLine Citation:
PMID:  21530296     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objectives: We estimated the influence of chronic obstructive pulmonary disease (COPD) upon the clinicopathological characteristics of lung cancer (LC) in Japanese surgical cases by comparing LC cases in non-COPD smokers. Method: A consecutive cohort comprising 157 COPD patients (78 in Global Initiative for Obstructive Lung Disease-1 (GOLD-1) and 79 in GOLD-2) and 374 non-COPD smoker-LC patients were enrolled in this study. Comparative analyses of the clinicopathological features of these two groups, including clinical outcomes, were performed. Results: By analyzing all cases, we found that LC patients with COPD were older on average, more likely to be male, and heavier smokers than LC patients without COPD. In sub-analysis involving matched patient backgrounds, histological differentiation grade of LC in smokers with COPD was lower than in LC smokers without COPD, although distribution of clinical stages and histological types of LCs did not differ between smokers with and without COPD. The 5-year-survival rate in COPD patients was poorer than in non-COPD smokers in terms of both overall (38% vs 54%) and cancer-related mortality (45% vs 63%). By single-variant risk analysis, COPD became a prognostic factor. Conclusion: We concluded from our analysis that COPD-related LC may have a higher malignant potential than LC in non-COPD smokers, as the histological differentiation grade and clinical outcomes were poorer.
Authors:
Ryoichi Kondo; Kazuo Yoshida; Takashi Eguchi; Nobutaka Kobayashi; Gaku Saito; Kazutoshi Hamanaka; Takayuki Shiina; Makoto Kurai
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-27
Journal Detail:
Title:  European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery     Volume:  -     ISSN:  1873-734X     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804069     Medline TA:  Eur J Cardiothorac Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved.
Affiliation:
Departments of Thoracic Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
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