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过去十年中,儿童哮喘死亡率上升,17岁以下喘鸣患者住院率每年增加4.5％,4岁以下的患儿住院率增加更高。随着哮喘发病率上升同时,暴露于空气污染的环境,过度应用吸入β_2拮抗剂,抗炎治疗不足及因贫穷而治疗不够的患者都是促使发病率上升的原因。另外吸入过敏原,病毒感染和被动吸烟可引起气道高反应性。本文就99例急性喘鸣儿(平均年龄2月～16岁)和
In the past 10 years, the mortality rate of asthma in children has risen. The hospitalization rate of asthmatic patients under 17 years of age has increased by 4.5% per year. The hospitalization rate of children under 4 years of age has increased even more. As the incidence of asthma increases, exposure to air pollution, excessive use of inhaled β_2 antagonists, inadequate anti-inflammatory regimens and poorly treated patients are among the reasons contributing to the rise in morbidity. In addition, allergens, viral infections and passive smoking can cause airway hyperresponsiveness. In this paper, 99 cases of acute asthmatic children (average age 2 months to 16 years old) and