支气管哮喘的病因除特异性体质(atopy)外,气道对交感-肾上腺的调节亦为重要,尤其是运动性哮喘(exercise induced asthma,EIA),过去认为是由于热丢失、乳酸堆积、低氧和低碳酸血症、代谢性酸中毒等。近年来逐渐了解到肺参与内分泌的产生、释放、代谢及灭活过程,EIA 的发病机制尚须进一步研究。 Causes of Bronchial Asthma In addition to atopy, airway regulation of the sympathetic-adrenal gland is also important, particularly exercise induced asthma (EIA), which was previously thought to be due to heat loss, lactic acid accumulation, hypoxia And hypocapnia, metabolic acidosis and so on. In recent years, it is gradually learned that pulmonary involvement in the process of endocrine production, release, metabolism and inactivation needs further study on the pathogenesis of EIA.