A comparison of pulmonary function in bronchial asthma and chronic obstructive bronchitis
AUTOR(ES)
Palmer, K. N. V.
RESUMO
The dynamic and static lung volumes, arterial blood-gas tensions, and single-breath carbonmonoxide transfer factor have been compared in 72 asthmatic and 45 bronchitic patients with airways obstruction of comparable severity to determine which measurements might be used to discriminate between the two diseases. The forced vital capacity, total lung capacity, arterial carbon-dioxide tension, and transfer factor were useful in this respect. Thus, in a patient with airways obstruction the finding of a low% predicted FVC (<70) and a low% predicted Dlco (<50) with a relatively normal% predicted TLC and a raised Paco2 is strongly suggestive of chronic obstructive bronchitis, whereas the finding of a relatively normal% predicted FVC and a high% predicted TLC (>115) with a nearly normal Dlco and a normal or low Paco2 is most compatible with a diagnosis of bronchial asthma.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=472130Documentos Relacionados
- Effect of lung resection for bronchial carcinoma on pulmonary function in patients with and without chronic obstructive bronchitis.
- Bronchial Biopsy in Chronic Bronchitis and Asthma
- Early effects of intravenous terbutaline on cardiopulmonary function in chronic obstructive bronchitis and pulmonary hypertension.
- A comparison of responses to bronchodilator drugs in chronic bronchitis and chronic asthma
- Diagnosis of asthma and chronic obstructive pulmonary disease in general practice.