摘要
Asthma and chronic obstructive pulmonary disease t（COPD） are the two commonest causes of adultairflow obstruction. The fundamental dltterences anti similarities between the pathological mechanisms of asthma and COPD are well recognized.^1 Both asthma and COPD involve inflammation of airway, but the pattern and distribution of inflammation markedly differ between typical patients with asthma and COPD. Chronic lung disease is now the most important long-term pulmonary complication in daily practice, and is associated with prolonged hospitalization and long-term pulmonary and clinical problems.^2
Asthma and chronic obstructive pulmonary disease t（COPD） are the two commonest causes of adultairflow obstruction. The fundamental dltterences anti similarities between the pathological mechanisms of asthma and COPD are well recognized.^1 Both asthma and COPD involve inflammation of airway, but the pattern and distribution of inflammation markedly differ between typical patients with asthma and COPD. Chronic lung disease is now the most important long-term pulmonary complication in daily practice, and is associated with prolonged hospitalization and long-term pulmonary and clinical problems.^2
