Category: Critical Care
Keywords: APRV, TCAV, Mechanical Ventilation (PubMed Search)
Airway Pressure Release Ventilation (APRV) is an "advanced" mode of mechanical ventilation that has long been considered a "rescue" mode of ventilation and has recently garnered much more attention during the COVID pandemic. Given the long boarding times of critical care patients in the ED with widespread improvement in sight, I wanted to send out some great resources that have come out recently delineating the difference in thought process between APRV as a "rescue" mode and as a "primary" mode.
Rory Spiegel of EMNerd and former UMMC CCM fellow has recently given a great talk on APRV and its use as a rescue mode of ventilation. See also Phil Rola's recent paper listed on that webpage.
APRV as a primary mode of ventilation has been used in the STC for years and is often referred to in the literature according to the basic ventilatory philsophy called Time Controlled Adaptive Ventilation. I realize this may be heresy to some and perhaps a curiousity to others. I recommend you take some time to peruse the following resources:
1. Dr. Habashi has done a great deal of work in the basic and translation literature on APRV and TCAV. His recent review dispels many myths and concerns surrounding APRV
Myths and Misconceptions of Airway Pressure Release Ventilation: Getting Past the Noise and on to the Signal - https://www.frontiersin.org/articles/10.3389/fphys.2022.928562/full
2. The TCAV Network has great resources for those who want to do a deeper dive into this topic.
(Can also find their recommended protocols at the Multi Trauma Critical Care education website: https://stcmtcc.com/handouts/)