Mechanisms linking advanced airway management and cardiac arrest outcomes.

Advanced airway management--such as endotracheal intubation (ETI) or supraglottic airway (SGA) insertion--is one of the most prominent interventions in out-of-hospital cardiac arrest (OHCA) resuscitation. While randomized controlled trials are currently in progress to identify the best advanced airway technique in OHCA, the mechanisms by which airway management may influence OHCA outcomes remain unknown. We provide a conceptual model describing potential mechanisms linking advanced airway management with OHCA outcomes.