Ventilation parameters during Advanced Life Support in cardiac arrest (CAvent): A multicentre observational cohort study
When assessing CPR quality, remember that BVM ventilation appears to have limited measurable efficacy compared to other methods. If you are documenting ventilation pressures or volumes, be mindful that asynchronous ETT use can lead to high airway pressures. Standardizing how we measure these parameters across different resuscitation scenarios is crucial for interpreting our own practice.
This multicenter observational cohort study compared various ventilation parameters across different manual ventilation modes and airway devices used during cardiopulmonary resuscitation. The authors found considerable variability in these parameters depending on the specific technique employed. Notably, they suggest that bag-valve mask (BVM) ventilations show limited efficacy, whereas asynchronous endotracheal tube (ETT) ventilation tends to generate elevated airway pressures. Furthermore, while spontaneous assisted ventilation (SAD) provided consistent tidal volumes and pressures across modes, this method was associated with increasing leakage over time. Overall, the study underscores a significant need for standardized measurement of these ventilation parameters both in research settings and routine clinical practice.