The Relationship Between the Neural Drive and Intrinsic Positive End-expiratory Pressure

To investigate the relation the nreural drive and intrinsic positive end-expiratory pressure(PEEPi) of the chronic obstructive pulmonary disease(COPD) patients with respiratory failure.The diaphragm electromyogram (EMGdi) represents the neural drive to the diaphragm.A multi-pair esophageal electrode catheter was used to record the EMGdi.The PEEPi was assessed by the by the balloon-catheter in the multi-pair esophageal electrode catheter. In present study the PEEPi of COPD patients was increased by increasing the resistance of the respiratory system, the change of the neural drive( EMGdi) was obtained from the a multi-pair esophageal electrode catheter All the signal recorded in the computer. The relation the nreural drive assessed by EMGdi and intrinsic positive end-expiratory pressure(PEEPi) would be analysed.