title: Pulmonary changes on HRCT scans in nonsmoking females with COPD due to wood smoke exposure.
abstract: To identify and characterize alterations seen on HRCT scans in nonsmoking females with COPD due to wood smoke exposure.
  
  
  
  We evaluated 42 nonsmoking females diagnosed with wood smoke-related COPD and 31 nonsmoking controls with no history of wood smoke exposure or pulmonary disease. The participants completed a questionnaire regarding demographic data, symptoms, and environmental exposure. All of the participants underwent spirometry and HRCT of the chest. The COPD and control groups were adjusted for age (23 patients each).
  
  
  
  Most of the patients in the study group were diagnosed with mild to moderate COPD (83.3%). The most common findings on HRCT scans in the COPD group were bronchial wall thickening, bronchiectasis, mosaic perfusion pattern, parenchymal bands, tree-in-bud pattern, and laminar atelectasis (p < 0.001 vs. the control group for all). The alterations were generally mild and not extensive. There was a positive association between bronchial wall thickening and hour-years of wood smoke exposure. Centrilobular emphysema was uncommon, and its occurrence did not differ between the groups (p = 0.232).
  
  
  
  Wood smoke exposure causes predominantly bronchial changes, which can be detected by HRCT, even in patients with mild COPD.
authors.affiliation: Federal University of Goiás School of Medicine, Goiânia, Brazil. helpuol@uol.com.br
authors.forename: Maria Auxiliadora Carmo
authors.initials: MA
authors.lastname: Moreira
authors.forename: Maria Alves
authors.initials: MA
authors.lastname: Barbosa
authors.forename: Maria Conceição de Castro Antonelli Monteiro de
authors.initials: MC
authors.lastname: Queiroz
authors.forename: Kim Ir Sen Santos
authors.initials: KI
authors.lastname: Teixeira
authors.forename: Pedro Paulo Teixeira e Silva
authors.initials: PP
authors.lastname: Torres
authors.forename: Pedro José de
authors.initials: PJ
authors.lastname: Santana Júnior
authors.forename: Marcelo Eustáquio
authors.initials: ME
authors.lastname: Montadon Júnior
authors.forename: José Roberto
authors.initials: JR
authors.lastname: Jardim
mesh_terms: D000328:Adult; D018533:Biomass; D001987:Bronchiectasis / Q000000981:diagnostic imaging* / Q000209:etiology; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000000981:diagnostic imaging* / Q000209:etiology; D012906:Smoke / Q000009:adverse effects*; D013147:Spirometry; D013997:Time Factors; D014057:Tomography, X-Ray Computed
chemical_list: D012906:Smoke