Psv - Siare Morpheus E User Manual

7.4.4 PSV

PSV is an assisted type of ventilation with pre-set pressure support (PS) with
assured safety respiratory rate set by the clinician in case of patient apnoea (RR
bk).
PSV can be used to sustain spontaneous ventilation for patients with
stabilised ventilation needs or who are in weaning phase.
Therefore keep in mind that, in order to have the ventilator's support,
using the PSV, the patient must be able to inhale and therefore you
cannot use this operating mode to ventilate a patient who is sedated or
paralysed.
PSV is a ventilation technique during which, at the beginning of the patient's
spontaneous inspiratory effort, the ventilator provides a constant positive support
pressure (PS) pre-set by the clinician with high-speed flow supply, until the pressure
inside the airway reaches the desired support value.
When the set support pressure is reached (according to T min), the expiration takes
the place of the inspiration (according to Trig E - percentage of the inspiratory flow
peak beyond which the expiration can begin).
This technique saves the patient from the work of breathing, as he only has to reach
the small quota necessary to enable the ventilator trigger (Trig I). This way, the
patient is the one who sets the respiratory rate, the current volume (based on the
physiological characteristics) and the beginning of the inspiratory and expiratory
phases.
MORPHEUS
7-19