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Asthma and chronic obstructive pulmonary disease(COPD) are the two commonest causes of adultairflow obstruction. The fundamental differences andsimilarities between the pathological mechanisms ofasthma and COPD are well recognized. Both asthma andCOPD involve inflammation of airway, but the patternand distribution of inflammation markedly differ betweentypical patients with asthma and COPD. Chronic lungdisease is now the most important long-term pulmonarycomplication in daily practice, and is associated withprolonged hospitalization and long-term pulmonary andclinical problems.
Both Asthma and chronic obstructive pulmonary disease (COPD) are the two commonest causes of adultairflow obstruction. The fundamental differences andsimilarities between the pathological mechanisms of asthma and COPD are well recognized. Both asthma and COPD are inflammation of airway, but the pattern and distribution of inflammation markedly differ betweentypical 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.