1. A: Pressure (green) and volume (black)/time curve in airway pressure release ventilation (APRV).
A: Pressure (green) and volume (black)/time curve in airway pressure release ventilation (APRV). Shown in the figure: 2 full mandatory breaths (not triggered by muscle effort), and 2 full spontaneous breaths (triggered by muscle effort, in blue) on the top of the mandatory ones. Muscle pressure (blue): the long arrow represents the T high, and the short one represents the T low of the mandatory breath. B: Flow (black) and volume (green)/time curve in APRV. T high is the start of the inspiratory flow to the start of expiratory flow, T low is the start of expiratory flow to the beginning of the next inspiratory flow. The 2 red intersecting lines are at 50% of the peak expiratory flow.
Ehab G Daoud et al. Respir Care 2012;57:
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