Comparison of Direct Laryngoscopy, Truview EVO2 and Glidescope in Pediatric Patients

The purpose of this study is to compare the effectiveness of two novel videolaryngoscope systems, the Glidescope and the Truview PCD against standard direct laryngoscopy (DL) in pediatric patients. The investigators primary hypothesis is that the use of videolaryngoscope devices, Glidescope and Truview provide better laryngeal views in pediatric patients as measured by Cormack and ehane (C\&L) (1 to 4, 4 the worst), without increasing the time taken to intubate (TTI), compared with direct laryngoscopy (DL). The investigators secondary hypotheses are that the use of Glidescope and Truview PCD provoke less hemodynamic response and fewer episodes of de-saturation in pediatric patients.