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喘息是临床上常见的症状,引起的疾病有支气管哮喘和慢性支气管炎、肺气肿等。在我国长江下游,据14万余城乡居民的统计,支气管哮喘的患病率约占1%左右。慢性支气管炎与肺气肿(包括喘息性支气管炎)的患病率据全国16个省市的分头统计,平均患病率约为4.55%。仅就这两种常见疾病的众多患者来论,应用好平喘药物具有极其重要的实际意义。如何针对不同病情来合理选择与应用平喘药,是提高临床治疗效果的重要措施。哮喘原理概述引起哮喘症状的病理基础是呼吸道的狭窄和通气量的降低。以往可能过多地强调了平滑肌痉挛的作用;事实上,呼气时小气道的陷闭、
Breathing is a common clinical symptoms, caused by bronchial asthma and chronic bronchitis, emphysema and other diseases. According to the statistics of more than 140,000 urban and rural residents in our country’s lower reaches of the Yangtze River, the prevalence of bronchial asthma accounts for about 1%. Prevalence of Chronic Bronchitis and Emphysema (including Asthmatic Bronchitis) According to the statistics of 16 provinces and cities nationwide, the average prevalence rate is about 4.55%. Just for many patients with these two common diseases, the application of antiasthmatic drugs has extremely important practical significance. How to reasonably choose and apply antiasthmatic drugs for different conditions is an important measure to improve the clinical effect. Overview of the Asthma Principle The pathology underlying the symptoms of asthma is the narrowing of the airways and the reduction of ventilation. In the past may be too much emphasis on the role of smooth muscle spasm; in fact, expiratory small airway trap,