6.8: 6.8 Volume Assured Pressure Support/Pressure Augmentation
- Page ID
- 101855
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Volume Assured Pressure Support
Volume Assured Pressure Support (VAPS) is described as a dual control mode within a breath, and may also be called Pressure Augmentation depending on the ventilator. We are discussing this mode under spontaneous modes, as a key component of using it in practice, as the patient has the ability to trigger breaths and has a consistent drive to breathe.
Ventilation starts with a patient-triggered pressure support breath, but volume is targeted, so pressure will be adjusted to achieve the target volume. Breaths are patient-triggered, volume targeted, pressure supported and flow cycled. The difference between this mode and other volume targeted dual modes, is that the ventilator makes adjustments within the same breath, as follows: the clinician typically sets a 
target, a minimum 
, set pressure support, inspiratory flow and sensitivity.
If is met before inspiratory flow drops to the preset level for cycle, then the breath is simply a PSV breath. If monitored is less than the target volume, the ventilator maintains the set flow until the volume is delivered and the ventilator switches from flow cycle to volume cycle.
