Unravelling young COPD and pre-COPD in the general population
Cosio, Borja G (Universitat de les Illes Balears)
Casanova, Ciro (Hospital Universitario Nuestra Señora de Candelaria (Santa Cruz de Tenerife))
Soler-Cataluña, Juan José (Hospital Arnau de Vilanova-Lliria)
Soriano, Joan B.. (Hospital Universitario de la Princesa (Madrid))
García-Rio, Francisco (Hospital Universitario La Paz (Madrid))
de Lucas, Pilar (Hospital General Universitario Gregorio Marañón)
Alfageme, Inmaculada (Hospital Universitario Virgen de Valme (Sevilla, Andalusia))
Rodríguez González-Moro, José Miguel (Universidad de Alcalá)
Sánchez Herrero, María Guadalupe (GSK (Madrid))
Ancochea, Julio (Hospital Universitario de la Princesa (Madrid))
Miravitlles, Marc (Hospital Universitari Vall d'Hebron. Institut de Recerca)
Universitat Autònoma de Barcelona

Data:	2023
Resum:	Chronic obstructive pulmonary disease (COPD) is commonly diagnosed when the airflow limitation is well established and symptomatic. We aimed to identify individuals at risk of developing COPD according to the concept of pre-COPD and compare their clinical characteristics with 1) those who have developed the disease at a young age, and 2) the overall population with and without COPD. The EPISCAN II study is a cross-sectional, population-based study that aims to investigate the prevalence of COPD in Spain in subjects ≥40 years of age. Pre-COPD was defined as the presence of emphysema >5% and/or bronchial thickening by computed chromatography (CT) scan and/or diffusing capacity of the lung for carbon monoxide (D ) <80% of predicted in subjects with respiratory symptoms and post-bronchodilator forced expiratory volume in 1 s/forced vital capacity (FEV/FVC) >0. 70. Young COPD was defined as FEV/FVC <0. 70 in a subject ≤50 years of age. Demographic and clinical characteristics were compared among pre-COPD, young COPD and the overall population with and without COPD. Among the 1077 individuals with FEV/FVC <0. 70, 65 (6. 0%) were ≤50 years of age. Among the 8015 individuals with FEV/FVC >0. 70, 350 underwent both D testing and chest CT scanning. Of those, 78 (22. 3%) subjects fulfilled the definition of pre-COPD. Subjects with pre-COPD were older, predominantly women, less frequently active or ex-smokers, with less frequent previous diagnosis of asthma but with higher symptomatic burden than those with young COPD. 22. 3% of the studied population was at risk of developing COPD, with similar symptomatic and structural changes to those with well-established disease without airflow obstruction. This COPD at-risk population is different from those that develop COPD at a young age. Subjects fulfilling the definition of pre-COPD show similar symptomatic and structural changes to those with well-stablished disease. The fixed ratio of FEV/FVC definition for COPD is missing an important group of patients that have significant disease.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	ERJ Open Research, Vol. 9 (february 2023) , ISSN 2312-0541

DOI: 10.1183/23120541.00334-2022
PMID: 36814553

11 p, 735.0 KB

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