First‐attempt awake tracheal intubation success rate using a hyperangulated unchannelled videolaryngoscope vs. a channelled videolaryngoscope in patients with anticipated difficult airway: a randomised controlled trial

There is uncertainty about the optimal videolaryngoscope for awake tracheal intubation in patients with anticipated difficult airway. The use of channelled and unchannelled videolaryngoscopy has been reported, but there is a lack of evidence on which is the best option.