RESUMO
Objective: to compare intubating conditions, success rate, and ease of intubation by anesthesia trainees using Glidescope Videolaryngoscope [GVL] compared to Macintosh laryngoscope [MCL]
Study Design: comparative study
Place and Duration of Study: king Khalid University Hospital, Riyadh, Saudi Arabia, from January 2012 to February 2015
Methodology: eighty adult patients ASA I and II with normal airway, scheduled to undergo elective surgery requiring endotracheal [ET] intubation were enrolled. Patients were randomly divided into 2 groups: GVL and MCL. All intubations were performed by trainee residents having experience of more than 1 year and who had successfully performed more than 50 tracheal intubations with each device. Glottic view based on Cormack and Lehane's [C and L's] score and percentage of glottis opening [POGO] score, time to successful intubation, need of external pressure, and overall difficulty scores were compared using either GVL or MCL
Results: view of glottis based on C and L's classification was better [p < 0.001] and POGO score was higher [88.25 +/- 22.06 vs. 57.25 +/- 29.26, p < 0.001] with GVL compared to MCL. Time to intubate in seconds was [32.90 +/- 8.69 vs. 41.33 +/- 15.29, p = 0.004] and overall difficulty score was less 2.78 +/- 1.39 vs. 4.85 +/- 1.75 [p < 0.001] using GVL compared to MCL
Conclusion: residents found ET intubation to be faster and easier with superior glottic view using GVL compared to MCL in patients with normal airway