Change in respiratory system impedance baseline and 5 minutes of ventilation [clinicaltrials_resource:abf55fd11f5d17f763685d02541dd3ae]

FOT measurements: Respiratory system impedance will be computed from the flow and pressure signals measured at the inlet of the tracheal tube. A composite waveform including 5, 11 and 19 Hz will be used as a stimulating signal generated by an A/D-D/A board and amplified by a power amplifier that drives a loudspeaker the output of which is connected to inspiratory line of the ventilator.

Change in respiratory system impedance baseline and 5 minutes of ventilation [clinicaltrials_resource:abf55fd11f5d17f763685d02541dd3ae]

FOT measurements: Respiratory system impedance will be computed from the flow and pressure signals measured at the inlet of the tracheal tube. A composite waveform including 5, 11 and 19 Hz will be used as a stimulating signal generated by an A/D-D/A board and amplified by a power amplifier that drives a loudspeaker the output of which is connected to inspiratory line of the ventilator.