Pressure Support Ventilation - A New Triggered Venilation Mode for Neonates
Booklet about pressure support ventilation written by Jean Christophe Roze and Thomas Krueger.
Booklet about pressure support ventilation written by Jean Christophe Roze and Thomas Krueger.
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28|29<br />
Onset of<br />
inspiration<br />
End of<br />
inspiration<br />
trigger threshold<br />
automatically<br />
adapted<br />
to leak flow<br />
termination criteria automatically adapted to leak flow<br />
latest termination after set max. T I<br />
leakage flow<br />
t<br />
D-22599-2010<br />
max. T I<br />
(backup T I)<br />
Figure 8: Two safety systems in the Babylog 8000plus prevent inadequate long inspiratory times:<br />
automatic leak flow adapted termination criteria and upper limit of inspiratory time (backup T I)<br />
In the Babylog 8000plus, a compensatory system, involving leak modelling,<br />
automatically adapts the trigger sensitivity level (trigger threshold) and<br />
termination criteria (expiratory trigger level) to the present leak flow. Due to<br />
this automatic leak adaptation autotriggering (autocycling) and inadequate<br />
long inspiratory times can be prevented.<br />
PSV with the Babylog 8000plus works up to leaks of 60% and more. There<strong>for</strong>e,<br />
<strong>Pressure</strong> <strong>Support</strong> <strong>Ventilation</strong> can now also be used in neonates.<br />
As an additional safety feature an upper limit of inspiratory time (backup T I)<br />
can be set by the user, preventing excessively long inspiratory times in case of<br />
failure of breath termination (figure 8).
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