Cardiac arrest patients who were intubated had similar outcomes to those who had a supraglottic airway device (e.g., King tube) inserted in the pre-hospital setting.
A literature review of 5 studies and over 300,000 patients with pre-hospital cardiac arrest demonstrated that patients had a better chance at survival with a good neurological outcome with placement of a supraglottic airway (e.g., King tube) or Bag-valve-mask (BVM) ventilation and rapid transport to a hospital vs intubation then transport.