Out-of-hospital cardiac arrest is associated with high mortality, with only approximately 11% of patients surviving to hospital discharge.1 There is a need for robust evidence to guide interventions. One of these interventions is airway management, for which contemporary strategies include bag-valve-mask ventilation, endotracheal intubation, or various types of supraglottic airway devices.2 Supraglottic airway devices are inserted blindly and placed in the hypopharynx such that airflow is provided above the glottis. The precise design and placement depend on the type of supraglottic airway. Although each of these 3 airway strategies have theoretical advantages and disadvantages, there is little evidence to recommend one approach over the other.2,3