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01-02-2010 | Computed Tomography

Evolution of emphysema in relation to smoking

Authors: Massimo Bellomi, Cristiano Rampinelli, Giulia Veronesi, Sergio Harari, Federica Lanfranchi, Sara Raimondi, Patrick Maisonneuve

Published in: European Radiology | Issue 2/2010

Abstract

Purpose

We have little knowledge about the evolution of emphysema, and relatively little is understood about its evolution in relation to smoking habits. This study aims to assess the evolution of emphysema in asymptomatic current and former smokers over 2 years and to investigate the association with subjects’ characteristics. The study was approved by our Ethics Committee and all participants provided written informed consent.

Materials and methods

We measured emphysema by automatic low-dose computed tomography densitometry in 254 current and 282 former smokers enrolled in a lung-cancer screening. The measures were repeated after 2 years. The association between subjects’ characteristics, smoking habits and emphysema were assessed by chi-squared and Wilcoxon tests. Univariate and multivariate odds ratios (OR) with 95% confidence intervals (CI) were calculated for the risk of emphysema worsening according to subjects’ characteristics. We assessed the trend of increasing risk of emphysema progression by smoking habits using the Mantel-Haenszel chi-squared test.

Results

The median percentage increase in emphysema over a 2-year period was significantly higher in current than in former smokers (OR 1.8; 95% CI 1.3–2.6; p < 0.0001). The risk of worsening emphysema (by 30% in 2 years) in current smokers increased with smoking duration (p for trend <0.02).

Conclusion

As emphysema is a known risk factor for lung cancer, its evaluation could be used as a potential factor for identification of a high-risk population. The evaluation of emphysema progression can be added to low-dose CT screening programmes to inform and incite participants to stop smoking.

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Title: Evolution of emphysema in relation to smoking
Authors: Massimo Bellomi
Cristiano Rampinelli
Giulia Veronesi
Sergio Harari
Federica Lanfranchi
Sara Raimondi
Patrick Maisonneuve
Publication date: 01-02-2010
Publisher: Springer-Verlag
Published in: European Radiology / Issue 2/2010
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-009-1548-6

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Evolution of emphysema in relation to smoking

Abstract

Purpose

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Materials and methods

Results

Conclusion

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