Comparison of the Incidence of Sore Throat and Hemodynamic Changes in ‎Airway Management by Macintosh, Glideoscope Laryngoscope and ‎Laryngeal Mask Airway Techniques: Randomized Controlled Trial

Background: Studies have shown that postoperative sore throat is the most common complication of tracheal intubation, However, the actual incidence and extent of it are not well documented. Objective: The aim of this study was to evaluate and compare the incidence of sore throat and hemodynamic Changes in Macintosh, Glidescope Laryngoscope and laryngeal mask airway  techniques in elective surgery. Methods: This randomized clinical trial study was performed on 90 patients undergoing elective surgery in Shahid Rajaee Hospital in Qazvin. Patients were randomly divided into three groups and three methods  of  intubation with the Macintosh, Glidescope Laryngoscope and laryngeal mask airway (LMA) were performed in patients. The incidence of sore throat, hemodynamic Changes, intubation time, and number of attempts were compared in three methods and analyzed by appropriate statistical methods. Results: Sore throat incidence was significantly higher in Macintosh group compared to the other two groups (P<.05). Duration of laryngoscopy was significantly longer in group Macintosh compared to group Glidescope (8.2 ± 2.4 vs. 6.8 ± 1.7, P=.02). In terms of hemodynamic variables, only heart rate in the LMA group in the third minute was significantly lower than the other two methods (P= 0.02). Conclusion: Sore throat incidence was higher in Macintosh group  and hemodynamic changes were less in laryngeal mask airway group. LMA seems to be the preferred method in the elderly or in cardiovascular patients. Further studies are needed to confirm these results.