Quick reference guide | Atlan SW 2.0n 35
Principles of operation
9.1.3 Pressure-controlled ventilation
9.1.3.1 PC
9.1.3.2 PC - CMV
– Pressure-controlled
– Time-controlled
– Machine-triggered
The mandatory breaths are machine-triggered and are not triggered by the patient.
9.1.3.3 PC - SIMV
– Pressure-controlled
– Time-controlled
– Machine-triggered or patient-triggered
– Synchronized inspiration
In PC - SIMV, the patient can breathe spontaneously at any time, while the number of
mandatory breaths is predefined. When synchronization is switched on, the breaths are
adapted to the spontaneous breathing efforts of the patient. If spontaneous breathing effort
by the patient is detected during the inspiratory trigger window, a patient-triggered breath will
be initiated.
9.1.3.4 PC - SIMV / PS
This mode is similar to PC - SIMV, except that the patient's spontaneous breathing at the
PEEP level during the expiratory phase is pressure-supported with ∆Psupp when outside
the trigger window.
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LQVS
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Trigger
Flow
Slope
Slope
Paw
1/RR
∆Psupp
PEEP
Ti
Insp term
Pinsp
Trigger
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