1病历资料患者男,84岁,因“反复咳嗽、咳痰、伴喘息30年,再发1周”于2010-04-14收住入院。患者近30年来每年秋冬季节均有咳嗽、咳痰、气喘,每次持续3个月以上,予抗感染、解痉、平喘等对症治疗后症状能缓解。近1周来再次出现咳嗽、咳白色黏痰,痰量不多,伴胸闷、气急,无畏寒、发热,无夜间端坐呼吸。既往有高血压病史8年,平素口服苯 1 patient data Male patient, 84 years old, because “repeated cough, sputum, with wheezing for 30 years, and then issued a week ” on 2010-04-14 admitted to hospital. Patients in the past 30 years every autumn and winter seasons have cough, expectoration, asthma, each lasting more than 3 months, to anti-infection, antispasmodic, asthma and other symptomatic treatment symptoms can be alleviated. Nearly 1 weeks to cough again, cough white phlegm, phlegm volume is not much, with chest tightness, shortness of breath, no chills, fever, no night sitting breathing. Previous history of hypertension for 8 years, usually oral benzene