Comparison of Direct Vs Indirect Laryngoscopic view by C-MAC Videolaryngoscope

Endotracheal intubation is considered the definitive airway for resuscitation and airway management. The MACINTOSH laryngoscope is the most commonly used device for directly visualizing the structures of larynx and facilitating tracheal intubation. In recent years videolaryngoscopy has played an important role in management of patients with unanticipated difficult airway or failed tracheal intubation. Videolaryngoscopes are relatively new class of airway devices that allow indirect view of laryngeal structures without the necessity of alignment of oral, pharyngeal and tracheal axis.Hence, laryngoscopy performed using videolaryngoscopes has proven to provide superior views compared to direct laryngoscopy in both normal and difficult intubations.

C MAC is one of the most recent macintosh blade based videolaryngoscope and it became commercially available in 2009 March in United States.C MAC videolaryngoscope to our knowledge allows clinician to perform both direct and indirect laryngoscopy with the same blade. therefore it serves as innovation for both difficult airway management and as powerful teaching tool.

This study will be comparing the laryngoscopy views by direct and indirect laryngoscope using C MAC.