COPD是以不完全可逆性气流受限为特征的进展性肺疾病, 与肺部对香烟烟雾等有害气体或有害颗粒的异常炎症反应有关。病理改变存在于外周气道、中央气道、肺实质和肺血管系统等, 也可引起肺外的不良效应, 但外周气道病变和功能异常是导致不完全可逆气流受限的主要原因。国内外采用吸入支气管舒张剂后一秒率( FEV1/FVC) 小于70%来进行定性诊断。
Citation: ZHOU Yingying,ZHU Lei. The diagnosis of chronic obstructive lung disease using pulmonary function test is notcompletely the same with the criteria of obstructive ventilatory defect. Chinese Journal of Respiratory and Critical Care Medicine, 2008, 08(5): 323-324. doi: Copy
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