摘要
１５７例慢性阻塞性肺病（ＣＯＰＤ）患者、５５例正常人的最大吸气口腔压（Ｐｉ＿（ｍａｘ））、平静吸气口腔压（Ｐｉ）以及吸气肌储备功能指标（Ｐｉ／Ｐｉ＿（ｍａｘ））与５项反映气道阻塞的常规肺功能指标的测定结果显示：除轻度ＣＯＰＤ与中度ＣＯＰＤ相比Ｐｉ＿（ｍａｘ）、Ｐｉ／Ｐｉ＿（ｍａｘ）无明显差异外，ＣＯＰＤ各组均随病情严重程度的加重，而致Ｐｉ＿（ｍａｘ）进行性降低，Ｐｉ／Ｐｉ＿（ｍａｘ）增大，表明气道阻塞加重可降低吸气肌力和吸气肌储备功能。Ｐｉ／Ｐｉ＿（ｍａｘ）用于吸气肌功能不全的早期诊断具有一定的临床应用价值。
Measurement of Pi_(max) (maximal staticinspiratory mouth pressure), Pi(static inspiratorymouth pressure)and 5 routine pulmonary functiontests, which inspect the degree of airway obstruction,was done in l57 patients with COPD and 55 normalsubjects. The results indicated that along with the de-terioration of COPD, the Pi_(max) was getting decreasedand the Pi/Pi_(max) was getting increased. In the mild andmoderate COPD groups, however, the Pi and Pi/Pi_(max)showed no statistical significance, which was the onlyexception. Our results suggested that(1)the airwayobstruction could reduce the inspiratory rnusclestrength; and(2)the Pi/Pi_(max) might be useful in clini-cal practice for early diagnosis of inspiratory muscle in-sufficiency.
出处
《华西医科大学学报》
CSCD
1994年第3期296-300,共5页
Journal of West China University of Medical Sciences
关键词
呼吸功能试验
气道阻塞
吸气肌功能
Airway obstruction Inspiratory muscle fuaction Pulmonary function test
