Nobuko Tachibana1, Yukitoshi Niiyama2, Michiaki Yamakage1. 1. Department of Anesthesiology, Sapporo Medical University School of Medicine, South 1 West 16 Chuo-ku, Sapporo, Hokkaido 060-8556, Japan. 2. Department of Anesthesiology, Sapporo Medical University School of Medicine, South 1 West 16 Chuo-ku, Sapporo, Hokkaido 060-8556, Japan. Electronic address: niiyama@sapmed.ac.jp.
Abstract
STUDY OBJECTIVE: To evaluate whether nasotracheal intubation using a fiberoptic bronchoscope reduces postoperative sore throat. DESIGN: Prospective, double-blinded, randomized, and controlled study. SETTING: Postoperative areas and surgical ward of a university hospital. PATIENTS: Seventy-four patients with American Society of Anesthesiologistsphysical status I-II who were scheduled for elective general anesthesia requiring nasotracheal intubation. INTERVENTIONS: Patients 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. MEASUREMENTS: The 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 RESULTS: The 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. CONCLUSIONS:Fiberoptic 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.
RCT Entities:
STUDY OBJECTIVE: To evaluate whether nasotracheal intubation using a fiberoptic bronchoscope reduces postoperative sore throat. DESIGN: Prospective, double-blinded, randomized, and controlled study. SETTING: Postoperative areas and surgical ward of a university hospital. PATIENTS: Seventy-four patients with American Society of Anesthesiologists physical status I-II who were scheduled for elective general anesthesia requiring nasotracheal intubation. INTERVENTIONS:Patients 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. MEASUREMENTS: The 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 RESULTS: The 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. CONCLUSIONS: Fiberoptic 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.