Principles of operation
164
Instructions for use Babylog 8000 plus SW 5.n
Monitoring of high-frequency ventilation
As in conventional ventilation, the waveforms for
pressure and flow are measured and can be
displayed. The following are measured specifically
for high-frequency ventilation:
DCO
2
=
VThf
2
x
f
Transport coefficient for CO
2
, which, analogous to
the minute volume in conventional ventilation, is a
measure of high-frequency ventilation.
VThf
Tidal volume of the high-frequency pulses,
averaged over multiple cycles
MVim
Minute volume applied by IMV breaths, measured
on the inspiratory side
VTim
Tidal volume applied by IMV breaths, measured on
the inspiratory side