Doença pulmonar obstrutiva crônica em mulheres expostas à fumaça de fogão à lenha
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Data
2013
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Resumo
Objective: To identify respiratory symptoms and COPD (forced vital capacity and forced expiratory
volume in one second ratio < 0.70 and belowthe lower limit of normal) in non-smoking
women with history of exposure to wood smoke of at least 80 hours-years. Methods: One hundred sixty nonsmoking women were included. Demographic data and
information about symptoms and other environmental exposures were collected. All
women underwent spirometry and those with COPD also had their lung volumes measured.
Results: The COPD group had greater exposure in years to wood smoke (p = 0.043), greater
length of rural residence (p = 0.042) and the same length of passive smoking (p = 0.297) and
farm work (p = 0.985). Cough (69.8%), sputum (55.8%) and wheezing (67.4%) predominated in
the COPD group (p < 0.001) compared to those without COPD (40.2%, 27.4%, 33, 3%, respectively).
The COPD patients had mild to moderate obstructive disturbance and normal lung
volumes, except that the residual volume and total lung capacity ratio (RV/TLC) > 0.40 in
45%, which correlated negatively with forced expiratory volume in one second (FEV1) and
FEV1/vital forced capacity ratio (FEV1/FVC).
Conclusion: Women with prolonged exposure to wood smoke had predominantly mild to
moderate COPD. Those without COPD had a high prevalence of chronic respiratory symptoms,
justifying clinical and spirometric monitoring.
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Doença pulmonar obstrutiva crônica, Biomassa, Fumaça, Pulmonary disease chronic obstructive, Biomass, Smoke
Citação
MOREIRA, Maria Auxiliadora Carmo; BARBOSA, Maria Alves; JARDIM, José R.; QUEIROZ, Maria Conceição Cam; INÁCIO, Lorine Uchôa. Doença pulmonar obstrutiva crônica em mulheres expostas à fumaça de fogão à lenha. Revista da Associação Médica Brasileira, São Paulo, v. 59, n. 6, p. 607-613, 2013.