应用呼吸阻抗图和肺阻抗图探讨肺心病与膈肌疲劳关系

目的探讨肺心病与膈肌疲劳的关系。方法对64例肺心病患者进行呼吸阻抗图和肺阻抗图检测，分组统计膈肌疲劳图形阳性率；并对阳性组和阴性组进行肺阻抗图各参数比较。结果(1)肺心病伴与不伴呼衰组膈肌疲劳图形阳性率分别为75％与21.9％；(2)肺心病伴与不伴心衰组膈肌疲劳图形阳性率分别为80％与46.3％；(3)膈肌疲劳阳性组与阴性组肺阻抗图各参数均值无显著性差异。结论肺心病的呼衰、心衰与膈肌疲劳互为因果，但肺心病严重程度与膈肌疲劳不一定呈平行关系。

Application of impedance pneumoplethysmogram and impedance respirogram to investigate pulmonary heart disease correlation with diaphragmatic muscle fatigue

Objective To investigate correlation of pulmonary heart disease (PHD)with the diaphragmatic muscle fatigue(DMF). Methods Impedance Pneumoplethysmogram(IPG) and Impedance respirogram(IRG) were detected in 64 cases of patients with PHD,and investigate DMF rheogram positive rate,also analysed various parameters of IPG in positive and negative groups. Results (1)The positive rate of DMF.Rheogram in PHD with and without respiratory failure are 75％ and 21.9％ respectively.(2)The positve rate in PHD with and without heart failue are 80％ and 46.3％ respectively.(3)The mean values of various parameters of IPG in positive and negative DMF rheogram have no significant difference.Conclusion Respiratory failure and heart falure in PHD are closely correlated with DMF. However,the occurance of DMF are not parallel with the severity degree of PHD.