Tracheal intubation for a difficult airway using Airway scope®, KingVision® and McGRATH®: a comparative manikin study of inexperienced personnel

The Airway scope® (AWS), the KingVision® (KV) and the McGRATH® (MG) are new indirect video laryngoscopes designed to facilitate effective and safe tracheal intubation under various conditions. However, there are few comparative studies as for performance in tracheal intubation attempted by inexperienced personnel. The purpose of this study was to evaluate success rates, time to intubation with use of these devices by inexperienced personnel in a simulated manikin difficult airway.