• Takuro Sanuki, Shingo Sugioka, Motoko Hirokane, Naotaka Kishimoto, Yoshiko Matsuda, and Junichiro Kotani.
• Department of Anesthesiology, Osaka Dental University, Chuo-ku, Osaka, Japan.
• J Anesth. 2009 Jan 1;23(4):530-3.

PurposeWe tested our hypothesis that a Parker-tipped tracheal tube could improve the reliability of tracheal tube passage as compared to a Murphy-tipped tracheal tube during Airway Scope-assisted intubation in a manikin.MethodsTwenty-seven resident doctors performed Airway Scope-assisted intubations using both tracheal tubes, and the number of times the tracheal tube tip touched the glottis or other laryngeal structures was counted on the Airway Scope monitor.ResultsThe incidence of the tracheal tube tip touching the glottis during Airway Scope-assisted intubation using the Parker-tipped tracheal tube (7.4%; 2 of 27 attempts) was significantly less than that obtained using the Murphy-tipped tracheal tube (33.3%; 9 of 27 attempts; P = 0.039).ConclusionWhen the advancement of a conventional tracheal tube during Airway Scope-assisted intubation is likely to result in collision with the glottis or other laryngeal structures, the selection of a Parker-tipped tracheal tube is a better option.

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