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肺气肿是一种进行性加重并严重影响人们生活质量的疾病,属于慢性阻塞性肺疾病[COPD]晚期最常见、最严重的并发症之一。我国七十年代末期普查7800万人,其COPD的平均患病率为4％。1985年美国有66100人死于COPD,占所有致死病因中的第5位。之后,发病率和死亡率仍有明显上升。可见COPD正日渐成为一种严重威胁人们生命的重要疾病之一。而肺气肿是COPD的中间环节,它是慢性支气管炎、哮喘、支气管扩张等发展为肺心病的关键一步,因此有效地治疗肺
Emphysema is a progressive disease that seriously affects people’s quality of life and is one of the most common and serious complications of advanced obstructive pulmonary disease [COPD]. China’s 78 million census in the late seventies, the average prevalence of COPD was 4%. In 1985, 66,100 people died of COPD in the United States, accounting for the fifth of all causes of death. After that, morbidity and mortality still increased significantly. It can be seen that COPD is becoming one of the most important diseases that threaten people’s lives. And emphysema is the intermediate part of COPD, it is chronic bronchitis, asthma, bronchiectasis and other development of pulmonary heart disease is a key step, so the effective treatment of lung