Comparison of UESCOPE VL 400, I-VIEW, Airtraq for Tracheal Intubation in Simulated Out-of-Hospital Conditions

In the study, three videolaryngoscopes: UESCOPE VL 400 (Zhejiang UE Medical Corp. Zhejiang, China), I-View™ VL (Intersurgical Ltd, Wokingham, Berkshire, UK), Airtraq sp® (Prodol Meditec S.A, Vizcaya, Spain) were compared with the most widely used, classic Macintosh laryngoscope (HEINE Optotechnik GmbH \& Co. KG, Gilch-ing, Germany) under simulated out-of-hospital conditions by people without clinical experience on a manikin model (Laerdal Airway Management Trainer Stavanger Norway manikin of universal difficulty), while using an endotracheal tube without and with a stylet. Simulated out-of-hospital conditions were created by placing the manikin at floor level. A random selection of 30 students of the third year of Emergency Medicine, full-time first-degree program at the Medical University of Lodz, Poland, were enrolled in the study. The following were assessed: intubation efficiency, time to ventilation (primary endpoints); intubation effort, intubator comfort, tooth damage and visibility of the glottis according to the Cormack-Lehane scale (secondary endpoints).