There was one patient who developed laryngospasm during the FDAE process.
Only 5.81% of patients who did not pass the positive ventilation test required awake intubation according to our FDAE protocol.
In the FDAE protocol group, the induction time was 36% lower with less variation.
Although the risk of developing laryngospasm and failure of mask ventilation is present during the FDAE process, there is no guarantee that this would not occur under routine practice.
We also assessed if the new approach was superior to routine practice in terms of discomfort, mental stress, anxiety, fear, and unpleasant memories for patients as described previously., Patients undergoing the FDAE approach had much lower recall rates of the induction experience.
Our sample size may be too small to assess the safety of the FDAE approach.
This FDAE approach significantly differs from those of practice guidelines.
Since the main aim of designing the FDAE approach was to assess the ability to obtain adequate facemask ventilation after anesthetic induction in patients with potential difficult airways, supraglottic airway devices were not used as the tools to manage difficult facemask ventilation.