Back to Journals » International Journal of Chronic Obstructive Pulmonary Disease » Volume 13

Influence of the type of emphysema in the relationship between COPD and lung cancer

Authors Mouronte-Roibás C, Fernández-Villar A, Ruano-Raviña A, Ramos-Hernández C, Tilve-Gómez A, Rodríguez-Fernández P, Caldera Díaz AC, Vázquez-Noguerol MG, Fernández-García S, Leiro-Fernández V

Received 24 June 2018

Accepted for publication 22 August 2018

Published 29 October 2018 Volume 2018:13 Pages 3563—3570


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Richard Russell

Video abstract presented by Mouronte-Roibás et al.

Views: 352

Cecilia Mouronte-Roibás,1 Alberto Fernández-Villar,1 Alberto Ruano-Raviña,2 Cristina Ramos-Hernández,1 Amara Tilve-Gómez,3 Paula Rodríguez-Fernández,3 Adriana Carolina Caldera Díaz,3 Míriam García Vázquez-Noguerol,3 Sara Fernández-García,1 Virginia Leiro-Fernández1

1Pneumology Department, Álvaro Cunqueiro Hospital, Sanitary Area of Vigo, NeumovigoI+i Investigation Group, Health Research Institute Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain; 2Public Health and Preventive Medicine Department, Medicine School, Santiago de Compostela University, CIBER of Epidemiology and Public Health, Madrid, Spain; 3Radiology Department, Hospital Sanitary Area of Vigo, Health Research Institute Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO, Vigo, Spain

There are no studies analyzing the relationship between emphysema and lung cancer (LC). With this aim and in order to make some comparisons between different clinical variables, we carried out the present study.
Methods: This is a case–control study, patients with COPD and LC being the cases and subjects with stable COPD being the controls. Clinical and functional parameters, as well as the existence of radiological emphysema, were evaluated in a qualitative and quantitative way, using a radiological density of -950 Hounsfield units as a cutoff point in the images. The existence of several different types of emphysema (centrilobular, paraseptal, panacinar, or bullae) was analyzed, allowing patients to have more than one simultaneously. The extent to which lobes were involved was evaluated and the extension of emphysema was graduated for each type and location, following a quantitative scale. Differences between cases and controls were compared by using bivariate and multivariate analyzes with results expressed as OR and 95% CI.
Results: We included 169 cases and 74 controls, 84% men with a FEV1 (%) of 61.7±18.5, with 90.1% non-exacerbators. Most of them (50%) were active smokers and 47.2% were ex-smokers. Emphysema was found in 80.2% of the subjects, the most frequent type being centrilobular (34.4%). The only significantly different factor was the presence of paraseptal emphysema (alone or combined; OR =2.2 [95% CI =1.1–4.3, P = 0.03]), with adenocarcinoma being significantly more frequent in paraseptal emphysema with respect to other types (67.2% vs 32.8%, P =0.03).
Conclusion: Patients with COPD and paraseptal emphysema could be a risk group for the development of LC, especially adenocarcinoma subtype.

Keywords: COPD, emphysema, lung cancer, paraseptal

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]