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慢性阻塞性肺气肿是呼吸系统的常见病、多发病、由于吸烟、感染、大气污染等有害因素的刺激,引起终末细支气管末端气道的弹性减低,过度膨胀,充气和肺容量增加、并伴有气道壁的破坏。大多数阻塞性肺气肿由慢性支气管炎发展而来。二者临床上统称为慢性阻塞性肺病(COPD)。其中吸烟是最主要的致病因素。如病因持续存在,疾病迁延不愈可并发慢性肺原性心脏病。慢性阻塞性肺气肿常常引起呼吸功能减退、通气、换气功能障碍;发生不同程度的低氧血症和高碳酸血症。慢性支气管炎并
Chronic obstructive pulmonary emphysema is a common respiratory disease, frequently-occurring disease, due to smoking, infection, air pollution and other harmful factors stimulate the end of the bronchial end-stage airway caused by elastic reduction, excessive expansion, inflation and increased lung capacity, And accompanied by damage to the airway wall. Most obstructive pulmonary emphysema developed from chronic bronchitis. Both clinically collectively referred to as chronic obstructive pulmonary disease (COPD). Smoking is the most important causative factor. If the cause persists, the disease can be delayed healing of chronic pulmonary heart disease. Chronic obstructive pulmonary emphysema often causes respiratory dysfunction, ventilation, ventilation dysfunction; varying degrees of hypoxemia and hypercapnia. Chronic bronchitis