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Static lung volume should be used to confirm restrictive lung disease

Authors Rasam S, Vanjare N

Received 13 June 2016

Accepted for publication 22 June 2016

Published 8 September 2016 Volume 2016:11(1) Pages 2157—2158


Checked for plagiarism Yes

Editor who approved publication: Dr Richard Russell

Shweta A Rasam, Nitin V Vanjare

Department of Pulmonary Function Laboratory, Chest Research Foundation, Pune, Maharashtra, India

We read the study by Hee Jin Park et al1 with great interest. The authors have investigated the prevalence of comorbidities in Korean chronic obstructive pulmonary disease (COPD) population. We raise our concern regarding the definition of COPD in this study. The study defines COPD as airflow limitation (only pre-spirometry forced expiratory volume in 1 second/forced vital capacity [FEV1/FVC] <70%) in subjects aged ≥40 years. To differentiate, between asthma and COPD, it is essential to do a post bronchodilator spirometry. It would have been wise to report the findings as prevalence of comorbidities in obstructive airway diseases rather than specifically calling it as COPD.

View original paper by Park and colleagues.

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