APRV can feel complex, but its core idea is simple. And APRV is explained as CPAP with a release phase. That release phase is where the real advantage comes from. In this Non traditional Modes of Ventilation Springer Nature Link Mechanical Ventilator Support Anesthesia Key Volume Assured Pressure Support Ventilation (VAPSV): A New Approach for Reducing Muscle Workload during Acute Respiratory Failure ScienceDirect