Comparing learning curve of McCoy laryngoscope and TAScope for endotracheal intubation by 2nd year anaesthesia residents in simulated difficult airway

This present, prospective, comparative study will be conducted in Department of Anaesthesiology and Critical Care, Pt.BD. Sharma PGIMS, Rohtak.Fourteen 2nd year anaesthesia residents will be randomized into two groups, Group T and Group M of seven residents each using opaque sealed envelope. Seventy patients will be equally randomized into both the groups using computer generated random number sequence.  Each resident will perform 5 intubations each.The study will consist of three parts. Part 1 study will include a video demonstration of the tracheal intubation technique using TAScope or McCoy laryngoscope. Part 2 will consist of extensive manikin training (Laerdal Airway Management Trainer). Each resident will do minimum of 5 intubations with the allocated device. The manikin training will be considered complete when the resident will accomplish three successful intubations in a row. In part 3 resident will be allowed to perform intubation on the anaesthetized patient under the close supervision of the attending anaesthesiologist. Each participant will intubate five anaesthetized patients with allocated laryngoscope , and data related to intubation will be recorded by an independent observer.The primary end points will be time required for modified CL grading, POGO score and intubation difficulty score (IDS) for each device. The secondary end points to be checked will be intubation time and successful placement of the tracheal tube. The additional end points will include the incidence of dental trauma, number of optimization maneuvers required for intubation, arterial oxygen saturation during or after attempts, other minor complications (trauma to lip or oral mucosa and presence of blood on blade).   .