Spontaneous breaths that occur during this mode are indicated by a
color change in the waveform.
SIMV VCV mode settings:
• TV
• RR
• Tinsp
• Tpause
• Psupport
• PEEP
• Pmax
• Trig Window
• Flow Trigger
• End of Breath
• Rise Rate
1
2
T
I
3
4
6
5
AB.91.040
1. Mandatory SIMV breath
2. Spontaneous pressure supported breath
3. Paw
4. Psupport
5. PEEP
6. Time
Figure 11-10 • SIMV VCV waveform
SIMV PCV mode
Synchronized intermittent ventilation with pressure control ventilation
(SIMV PCV) delivers a relatively slow breathing rate with pressure-
controlled breathing. This mode combines mandatory breaths with
spontaneous breath support. If a trigger event occurs within the
synchronized window, a new pressure-controlled breath is initiated. If
a trigger event occurs elsewhere during the expiratory phase, a
support for a spontaneous breath is provided with pressure support
added as set by the clinician.
SIMV PCV mode settings:
• Pinsp
• RR
• Tinsp
11 Specifications and theory of operation
2076152-001 11-29
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