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目的 :探讨突发性致死性哮喘SFA的临床特点及其危险因素。方法 :对哮喘患者 2 96例中的突发性致死性哮喘 39例 ,进行了回顾性分析。结果 :2 96例哮喘患者中突发性致死性哮喘占 1.3%。主要危险因素接触大量致敏原为主 ,其他依次为PEF变异率 >30 % ,夜间呼吸困难 ,呼吸道感染等危险因素。结论 :SFA作为支气管哮喘的一种特殊临床类型 ,其主要特点是突然起病、病情迅速恶化、治疗后病情迅速缓解 ,易被误诊。应加强对SFA特点 ,危险因素 ,治疗与监测方法的认识
Objective: To investigate the clinical characteristics and risk factors of SFA in patients with sudden fatal asthma. Methods: A retrospective analysis was performed on 39 cases of sudden fatal asthma in 2 96 cases of asthma. Results: Sudden fatal asthma was found in 1.3% of the 2 96 asthmatic patients. The main risk factors exposed to a large number of allergens, the other followed by PEF mutation rate> 30%, dyspnea at night, respiratory infections and other risk factors. Conclusion: SFA is a special clinical type of bronchial asthma. Its main feature is sudden onset, rapid deterioration of the disease, rapid remission after treatment, easily misdiagnosed. Should strengthen the SFA characteristics, risk factors, treatment and monitoring methods