近年来的调查研究表明,老年人肺部疾病在所有老年病中发病率及死亡率都呈增高之势,几乎与心脑血管疾病并驾齐驱。贵州省和西藏日喀则地区老年死因回顾调查显示,呼吸系统疾病在老年病死因中名列第一位。随着年龄的增长,老年人呼吸系统逐渐出现组织结构和生理功能的衰退,如脊柱后弯、呼吸肌的萎缩以及胸肺弹性的减弱等,在一定程度上削弱了呼吸功能和肺功能。另外,老年人免疫力和组织再生能力均随年龄增长而有所下降,因而较其他人群更易感染和罹 In recent years, research shows that the incidence of lung disease in the elderly and morbidity in all elderly patients showed an upward trend, almost side by side with cardiovascular and cerebrovascular diseases. A retrospective survey of the causes of death among the elderly in Guizhou and Shigatse areas of Tibet shows that respiratory diseases rank the first place among the causes of death in the elderly. With age, respiratory and pulmonary functions are weakened to a certain degree due to the gradual deterioration of the organizational structure and physiological functions of the elderly respiratory system, such as the posterior of the spine, atrophy of the respiratory muscles, and the weakening of the chest and lung elasticity. In addition, the immunity and tissue regeneration ability of the elderly decline with age and are therefore more susceptible to infection and suffering than other populations