毛细支气管炎是婴幼儿常见的下呼吸道感染性疾病,多由病毒感染所致小气管炎性梗阻。临床表现为咳嗽、喘憋、呼吸困难、肺部喘鸣音及细小湿口罗音。解除呼吸道梗阻,改善通气,控制喘憋是提高毛细支气管炎疗效的关键。二羟丙茶碱(喘啶)、氨茶碱治疗毛细支气管炎均有解痉平喘作用, Bronchiolitis is a common lower respiratory tract infection in infants and young children, mostly caused by viral infection, tracheal inflammatory obstruction. Clinical manifestations of cough, wheezing, breathing difficulties, lung wheezing and small wet mouth rales. Relieve airway obstruction, improve ventilation, control wheezing is the key to improve the efficacy of bronchiolitis. Diprophylline (Asthma), aminophylline treatment of bronchiolitis have antispasmodic antiasthmatic effect,