Incidence and severity of postoperative sore throat: a randomized comparison of Glidescope with Macintosh laryngoscope.

BACKGROUND: Postoperative sore throat (POST) is a common problem following endotracheal (ET) intubation during general anesthesia. The objective was to compare the incidence and severity of POST during routine intubation with Glidescope (GL) and Macintosh laryngoscope (MCL).

METHODS: One hundred forty adult patients ASA I and II with normal airway, scheduled to undergo elective surgery under GA requiring ET intubation were enrolled in this prospective randomized study and were randomly divided in two groups, GL and MCL. Incidence and severity of POST was evaluated at 0, 6, 12 and 24 h after surgery.

RESULTS: At 0 h, the incidence of POST was more in MCL than GL (n = 41 v.s n = 22, P = 0.001), and also at 6 h after surgery (n = 37 v.s n = 23, P = 0.017). Severity of POST was more at 0, 6 and 12 h after surgery in MCL (P < 0.001, P = 0.001, P = 0.004 respectively).

CONCLUSIONS: Routine use of GL for ET tube placement results in reduction in the incidence and severity of POST compared to MCL.

TRIAL REGISRATION: ClinicalTrials.gov NCT02848365 . Retrospectively Registered (Date of registration: July, 2016).