[TOC]
- Definition: pressure change across alveolar structures required to deliver a tidal volume
- \(\Delta\)P = plateau pressure - PEEP = VT/Respiratory System compliance
- This approach allows us to adjust tidal volume based on the compliance rather than by ideal body weight
- Tidal volume based on ideal body weight may overdistend areas of the lung that are normal due to reduced ventilation-capable parts of the lung (dense consolidation)
- Driving pressure was associated with survival
- \(\Delta\) P \(\geq\) 19 cm H₂O had increased risk of hospital death