• Tomoyuki Saito, Takashi Asai, Takerou Arai, Misa Tsuchida, Katsumi Ogawa, and Yasuhisa Okuda.
• Department of Anesthesiology, Dokkyo Medical University Koshigaya Hospital, Koshigaya 343-8555.
• Masui. 2010 Dec 1;59(12):1544-7.

BackgroundTracheal intubation should be performed with great care in the multiple injury patient, particularly when damage to the cervical spine is suspected. The patient with unstable cervical spine requires a neck collar in prehospital area, and medical personnel may be required to perform tracheal intubation. We compared Macintosh laryngoscope with the Airway Scope (AWS), and Coopdeck videolaryngoscope portable VLP-100 (VLP-100) in a manikin model with the presence of a neck collar.MethodsWe conducted a prospective study in 20 medical residents with little prior airway management experience. They inserted the AWS, VLP-100 and Macintosh laryngoscope, in turn, and the view of the glottis at laryngoscopy was graded, using a classification reported by Cormack and Lehane. Tracheal intubation time and the success rate of tracheal intubation (within 120 sec) were also recorded.ResultsThe AWS provided a best view of the glottis, a shorter tracheal intubation time and a higher success rate of tracheal intubation, compared with VLP- 100 and Macintosh laryngoscope.ConclusionsThe AWS may possess advantages over conventional direct laryngoscopes in patients with restricted neck movement.

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