[Measurement and clinical significance of inspiratory drive efficacy in patients with chronic obstructive pulmonary disease].
To study the relationship between VT/P0.1 and the function of inspiratory muscles, we performed the measurement of VT/P0.1 (inspiratory drive efficacy), MIP (maximal inspiratory mouth pressure) and MMIF (maximal midinspiratory flow) in 15 normal subjects and 60 patients with chronic obstructive pulmonary disease(COPD). The results indicated that VT/P0.1 decreased with the deterioration of COPD and it correlated highly and positively with MIP and MMIF. These suggest that VT/P0.1 can reflect the function of inspiratory muscles as well as MIP and MMIF can.
Wang
Y
Y
Luo
Y
Y
Yuan
Y
Y
He
T
T
Zeng
J
J
D000368:Aged; D005260:Female; D006801:Humans; D007320:Inspiratory Capacity; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012132:Respiratory Muscles / Q000503:physiopathology; D013990:Tidal Volume