Abstract: Application of GlideScope System in Nasotracheal Intubation during Oral and MaxillofacialTumor SurgeryShaoyong YANG, Jincheng LI, Dongyong GUOCorresponding author: Shaoyong YANG, E-mail: shaooyongy@gmail.comDepartment of Anaesthesiology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, ChinaAbstract Objective: To compare the value of Macintosh laryngoscopy (ML) and the GlideScope videolaryngoscope (GL) fornasotracheal intubation in oral and maxillofacial tumor surgery. Methods: A total of 48 patients receiving nasotracheal intubation inelective oral and maxillofacial tumor surgery were randomly divided into GL group and ML group under the condition of local anesthe-sia and awake sedation. Exposure of the glottis, intubation duration, application of Magill forceps and the throat injury were evaluated.A Visual Analog Scale assessing the intubation were recorded. Results: The GL group had impoved exposure of the glottis and shorterintubation duration ( 15~33s, 22s on average) than the ML group ( 16~45s, 28s on average ), with a significant difference ( P = 0.032 ).Nasotracheal intubation was easier with the GL than with ML ( Visual Analog Scale 13 ( 4～22 ) vs 27 ( 10～40 ), P < 0.01 ). The inci-dence of injury during intubation was lower in the GL group. No patients needed Magill forceps in the GL group. Conclusion: Com-pared with ML, GL has superior performance in nasotracheal intubation during oral and maxillofacial tumor surgery under the condi-tion of local anesthesia and awake sedation.Keywords GlideScope videolaryngoscope; Nasotracheal intubation; Maxillofacial tumor surgery