Background The King Vision™(KVL) and Airtraq® videolaryngoscopes may reduce the time
to double lumen tube (DLT) intubation compared to the GlideScope® and MacIntosh in
simulated easy and difficult airways. Methods Twenty-one staff anesthesiologists with limited
prior experience in using videolaryngoscopes for DLT intubation were assigned randomly to
insert a DLT using the MacIntosh, GlideScope®, Airtraq® and KVL videolaryngoscopes on
easy and difficult airway simulators in a randomized crossover order. Time to DLT intubation …

Methods Twenty-one staff anaesthesiologists who had limited prior experience in using the
VLs for DLT intubation participated in this randomised crossover study. Following a brief
demonstration and two practice attempts, participants were volunteered to insert a DLT
using the Macintosh, GlideScope®, Airtraq®, and King Vision™ on two high-fidelity easy
and difficult airway simulators in a computer-generated randomized sequence. The primary
endpoint, time to DLT intubation, as well as, the views obtained at laryngoscopy, ease of …