Survival of Patients with Chronic Obstructive Pulmonary Disease Due to Biomass Smoke and Tobacco

Ramírez‐Venegas, Alejandra; Sansores, Raúl H; Pérez‐Padilla, Rogelio; Regalado, Justino; Velázquez, Alejandra; Sánchez, Candelaría; Mayar, Maria Eugenia

doi:10.1164/rccm.200504-568oc

Cited by 189 publications

(173 citation statements)

References 36 publications

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“…intake > 20 pack-years or exposure to wood smoke > 80 hour-years; history of dyspnea or cough. (4,13,14) The classification in levels of severity was based on FEV 1 . (10) The criterion of exposure to wood smoke > 80 years-age used in this study was based on the levels of exposure considered significant in similar studies.…”

Section: Resultsmentioning

confidence: 99%

“…(10) The criterion of exposure to wood smoke > 80 years-age used in this study was based on the levels of exposure considered significant in similar studies. (13,15) We used the following as exclusion criteria: variation of FEV 1 after bronchodilator use (albuterol 400 µg) ≥ 10%; medical indication of examination for asthma or for other pulmonary diseases other than COPD; and report of occupational exposure to silica or asbestos.…”

Section: Resultsmentioning

confidence: 99%

“…(16) The principal determiners of the selection of a small percentage, lower than 20% of the initial sample, were the retrospective design of the study, insufficient data in the files and the exclusion of patients with asthma and lung diseases other than severity of the obstruction in individuals exposed only to wood smoke, in relation to those exposed only to tobacco smoke. (13,15) In only one of those studies, (15) however, hypoxemia, hypercapnia, and pulmonary hypertension were observed in patients with pronounced bronchial obstruction exposed only to wood smoke. The diffusing capacity of the lung for carbon monoxide in patients with COPD due to wood smoke exposure presented a pattern more suggestive of airway disease than of pulmonary emphysema.…”

Section: Discussionmentioning

confidence: 99%

“…(13) We considered the following as diagnostic criteria for COPD: patients aged 40 years or older; postbronchodilator ratio between forced expiratory volume in one second and forced vital capacity (FEV 1 /FVC) < 70% of the predicted value; tobacco…”

Section: Methodsmentioning

confidence: 99%

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Estudo comparativo de sintomas respiratórios e função pulmonar em pacientes com doença pulmonar obstrutiva crônica relacionada à exposição à fumaça de lenha e de tabaco

et al. 2008

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Comparative study of respiratory symptoms and lung function alterations in patients with chronic obstructive pulmonary disease related to the exposure to wood and tobacco smoke* Estudo comparativo de sintomas respiratórios e função pulmonar em pacientes com doença pulmonar obstrutiva crônica relacionada à exposição à fumaça de lenha e de tabaco AbstractObjective: To describe and analyze clinical symptoms and spirometric alterations of patients with chronic obstructive pulmonary disease (COPD) and history of exposure to wood and tobacco smoke. Methods: We retrospectively evaluated data related to 170 patients distributed into 3 groups: 34 exposed only to wood smoke, 59 patients exposed only to tobacco smoke and 77 patients exposed to both. Results: The groups did not differ significantly in terms of age (p = 0.225) or degree of exposure, considering each type of exposure in isolation or in combination (p = 0.164 and p = 0.220, respectively). Females predominated in the group exposed to wood smoke. There were no differences among the groups regarding respiratory symptoms (p > 0.05), and moderate dyspnea predominated in the three groups (p = 0.141). The group exposed to wood smoke presented higher percentages of forced expiratory volume in one second/forced vital capacity ratio and of forced expiratory volume in one second (p < 0.05). Positive results on bronchodilator testing occurred more frequently in the group exposed to tobacco smoke. The percentage of severe and extremely severe obstruction was significantly higher in the group exposed to tobacco smoke (44.1%) than in that exposed to wood smoke (11.8%; p = 0.006). Conclusions: Respiratory symptoms and pulmonary function alterations consistent with COPD were observed in the groups of patients exposed to wood smoke. However, those alterations were not as significant as the alterations observed in the groups exposed to tobacco smoke. This study emphasizes the importance of prospective studies in evaluating the risk of wood-smoke-related COPD in Brazil, as well as the need for preventive measures in this area.Keywords: Pulmonary disease, chronic obstructive; Smoking; Air pollution, indoor; Smoke. ResumoObjetivo: Descrever e analisar sintomas respiratórios e alterações espirométricas em pacientes portadores de doença pulmonar obstrutiva crônica (DPOC), com história de exposição à fumaça de lenha e de tabaco. Métodos: Foram avaliados retrospectivamente dados de 170 pacientes distribuídos em 3 grupos: 34 pacientes expostos somente à fumaça de lenha, 59 pacientes, somente à de tabaco e 77 pacientes expostos a ambas. Resultados: Os grupos não diferiram quanto a idade (p = 0,225) e grau de exposição, considerando cada tipo de exposição isoladamente ou em associação (p = 0,164 e p = 0,220, respectivamente). No grupo exposto à fumaça de lenha predominou o sexo feminino. Não houve diferença entre os grupos quanto à freqüência dos sintomas respiratórios (p > 0,05), e houve predominância de grau moderado de dispnéia nos três grupos (p = 0,141). O grupo exposto à fumaça de ...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Estudo comparativo de sintomas respiratórios e função pulmonar em pacientes com doença pulmonar obstrutiva crônica relacionada à exposição à fumaça de lenha e de tabaco

et al. 2008

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“…Longitudinal studies of the impact of biomass smoke exposure on the development of COPD are lacking, but one study did follow women with COPD associated with biomass smoke exposure in terms of mortality risk (22). Survival analysis over a 7-year follow-up period, adjusted for baseline FEV 1 , O 2 saturation, body mass index, and age, showed that women with COPD associated with biomass smoke exposure had mortality rates similar to those of men with COPD due to tobacco smoking.…”

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confidence: 99%

When Smoke Gets in Your Lungs

Balmes¹

2010

Proceedings of the American Thoracic Society

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Biomass – An Environmental Concern

Khobragade

2024

Plant Biomass Derived Materials

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Survival of Patients with Chronic Obstructive Pulmonary Disease Due to Biomass Smoke and Tobacco

Abstract: Women exposed domestically to biomass develop chronic obstructive pulmonary disease with clinical characteristics, quality of life, and increased mortality similar in degree to that of tobacco smokers.

Cited by 189 publications

References 36 publications

Estudo comparativo de sintomas respiratórios e função pulmonar em pacientes com doença pulmonar obstrutiva crônica relacionada à exposição à fumaça de lenha e de tabaco

Estudo comparativo de sintomas respiratórios e função pulmonar em pacientes com doença pulmonar obstrutiva crônica relacionada à exposição à fumaça de lenha e de tabaco

When Smoke Gets in Your Lungs

Biomass – An Environmental Concern

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