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哮喘的特点是病程难以预料且变化多样。个体间表现不一,且每次发作亦有所不同。发作间期患者可完全无症状。哮喘发作时,其表现特点为呼吸困难和下呼吸道狭窄所引起的喘息。气道阻塞引起的病理改变特点有支气管痉挛、支气管平滑肌肥大、支气管壁浸润、水肿、粘液腺肥大及粘液分泌增多。近来支持这样一个结论,即哮喘的临床表现及其病理变化可能表示免疫的和/或植物神经系统的失调。【免疫失调】哮喘是一种速发型过敏反
Asthma is characterized by unpredictable and variable disease duration. Individual performance varies, and each attack is also different. Intermission patients can be completely asymptomatic. Asthma attacks, the performance characteristics of dyspnea and lower respiratory tract caused by wheezing. Pathological changes caused by airway obstruction bronchial spasm, bronchial smooth muscle hypertrophy, bronchial wall infiltration, edema, mucus gland hypertrophy and mucus secretion increased. Recent support for the conclusion that the clinical manifestation of asthma and its pathological changes may represent immune and / or disorders of the autonomic nervous system. Immune disorders Asthma is a fast-acting allergic reaction