• D S Phua and C L Mah.
• Department of Anaesthesia, Changi General Hospital, Singapore. darren_phua@cgh.com.sg
• Anaesthesia. 2012 Apr 1;67(4):402-6.

AbstractThe GlideScope(®) videolaryngoscope is widely utilised in the management of the difficult airway. However, complications such as mucosal injury, palatal and tonsillar perforations have been reported with its use. The Shikani optical stylet has shown promise in aiding difficult intubations. This randomised controlled trial evaluates the Shikani optical stylet as an alternative to the GlideScope videolaryngoscope in patients undergoing anaesthesia, with a simulated difficult airway. Sixty patients were randomised to undergo tracheal intubation with either the GlideScope videolaryngoscope (n = 30) or the Shikani optical stylet (n = 30). All patients had rigid cervical collars applied to simulate a difficult airway. Tracheal intubation was successful in all patients, with first attempt success rates of 97% (29/30) the GlideScope group compared with 93% (28/30) in the Shikani group compared with 93% (28/30) in the Shikani group (p = 0.5). The mean (SD) time to intubation was 64 (37) s when using the GlideScope and 58 (26) s in the Shikani group (p = 0.48). A higher incidence of airway mucosal injury was noted in patients intubated with the GlideScope videolaryngoscope, compared with the Shikani optical stylet (5 vs 0, respectively, p = 0.05). This trial suggests that the Shikani optical stylet is a viable alternative to the GlideScope videolaryngoscope in the management of the difficult airway.Anaesthesia © 2012 The Association of Anaesthetists of Great Britain and Ireland.

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