[Examination of maximum transdiaphragmatic pressure, diaphragm electromyography in patients with obstructive emphysema].
This paper reported the methods and results of maximum transdiaphragmatic pressure (Pdi max) and diaphragm electromyography (EMGdi) in 16 patients with obstructive emphysema. A correlation analysis showed that Pdimax is negatively related to PaCO2, FRC%, and positively to VC, IC, FVC and MVV closely. Diaphragmatic fatigue was induced by inspiratory resistive loaded breathing with the parameters of 60% Pdimax and 5 minutes lasting. The influential effects and clinical value of diaphragm examination were discussed.
Yu
B X
BX
Department of Pulmonary Medicine, General Hospital of PLA, Beijing.
D001784:Blood Gas Analysis; D003964:Diaphragm / Q000503:physiopathology; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure; D011656:Pulmonary Emphysema / Q000503:physiopathology*; D012129:Respiratory Function Tests