Effects of Different Manual Airway Maneuvers on Bonfils Intubation Fiberscope-guided Tracheal Intubation

  Objective  To compare the effects of different manual airway maneuvers on Bonfils intubation fiberscope-guided tracheal intubation.

  Methods  Totally 90 adult patients with ASA class Ⅰ-Ⅱ who were planning to undergo elective plastic surgery and requiring orotracheal intubation were allocated into three groups:Group A (routine operation), Group B (chin lift), and Group C (external jaw thrust). After intravenous anesthesia induction, all patients were intubated with Bonfils intubation fiberscope. The number of intubation attempts, duration of each intubation attempt, hemodynamic changes, incidence of intubation-related intraoral injury, and postoperative sore throat and other complaints were recorded.

  Results  All patients were successfully intubated at the first attempt. The duration of intubation was significantly short in Group C (18.9±10.3)s than in Group A (44.6±38.9)s and Group B (33.7±29.4)s (P < 0.05). The hemodynamic changes were similar among three groups. The incidence of postoperative sore throat and hoarseness in Group A, B, and C were 12, 11, and 7 patients, respectively. One patient in Group A suffered from injury to the upper lip.

  Conclusions  Bonfils intubating fiberscope is easy to manipulate with high success rate. Both chin lift and external jaw thrust can shorten intubation time, whereas external jaw thrust can help to achieve the shortest intubation time with minimal injury to oral cavity.