APRV in Pandemics Supplemental Data 2020 JAP.docx

Setting APRV using the TCAV Method as Rescue for COVID Patients

As with any mode of mechanical ventilation, the settings for Airway Pressure Release Ventilation (APRV) using the Habashi technique of the Time Controlled Adaptive Ventilation (TCAV) method will be different when applied as a rescue strategy. Although APRV is a form of continuous positive airway pressure (CPAP) and can be used to facilitate early spontaneous breathing, it can also be used in non-spontaneously breathing patients.

There are 4 parameters to set with APRV. Together, the Pressure High (P_High) and the Time High (T_High) create the CPAP Phase. Together, the Pressure Low (P_Low) and T Low (T_Low) create the Release Phase. This document is designed to describe TCAV settings and rationale.