[Comparative performance of Airway Scope, Trueview EVO2, and Fibertech video laryngoscope used by inexperienced medical students in a simulated manikin with normal and difficult airways].

BACKGROUND: Many kinds of video-typed laryngoscopes are widely used for tracheal intubation in many clinical situations. The present study was performed to compare the ease in the use of the Airway Scope (AWS), Trueview EVO2 (TVE), and Fibertech Video Laryngoscope (FVL).
METHODS: Twenty-seven inexperienced medical students used AWS, TVE and FVL in a simulated manikin with normal and difficult airways. We measured the time of tracheal intubation and start of ventilation, performance levels of tracheal intubations, dental clicks, difficulty of tracheal intubation, and ease of tracheal intubation, and performer's liking.
RESULTS: The use of TVE was associated with the longest time to tracheal intubation with dental click and ventilation than the other devices in normal and difficult airways, whereas the performance levels of tracheal intubation were similar among the three devices. VAS score (easy to use) and the degree of liking were lower in AWS than TVE.
CONCLUSIONS: This study suggests that inexperienced medical students would perform tracheal intubation using AWS in a short time without dental click in a simulated manikin.