• Nobuko Tachibana, Yukitoshi Niiyama, and Michiaki Yamakage.
• Department of Anesthesiology, Sapporo Medical University School of Medicine, South 1 West 16 Chuo-ku, Sapporo, Hokkaido 060-8556, Japan.
• J Clin Anesth. 2017 Jun 1; 39: 113-117.

Study ObjectiveTo evaluate whether nasotracheal intubation using a fiberoptic bronchoscope reduces postoperative sore throat.DesignProspective, double-blinded, randomized, and controlled study.SettingPostoperative areas and surgical ward of a university hospital.PatientsSeventy-four patients with American Society of Anesthesiologists physical status I-II who were scheduled for elective general anesthesia requiring nasotracheal intubation.InterventionsPatients were randomized to one of two intubation groups, F (fiberoptic bronchoscope-guided) and M (Macintosh laryngoscope-guided), and after induction of general anesthesia, the patients' tracheas were intubated via the nose.MeasurementsThe intensity of postoperative sore throat was evaluated using a numerical rating score (0=none, 10=severe) at 24 hours postoperatively, and the incidence of nasal mucosal trauma, time to completion of intubation, and hemodynamic responses were recorded and compared between groups.Main ResultsThe numerical rating score value was significantly lower in group F than in group M (P=.0047), but the incidence of nasal mucosal trauma was comparable between the two groups. The median time to completion of intubation was shorter for group F than group M (P<.0001). Hemodynamic responses were not significantly different.ConclusionsFiberoptic bronchoscope-guided intubation is associated with less sore throat after nasotracheal intubation than M intubation. The time to completion of intubation was significantly shorter using the fiberoptic bronchoscope than that using the Macintosh laryngoscope.Copyright © 2016 Elsevier Inc. All rights reserved.

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