• Anaesthesia · Feb 2004

    Randomized Controlled Trial Comparative Study Clinical Trial

    Comparison of the Williams Airway Intubator and Ovassapian Fibreoptic Intubating Airway for fibreoptic orotracheal intubation.

    • K B Greenland, M C Lam, and M G Irwin.
    • Department of Anaesthesiology, Caritas Medical Centre, 111 Wing Hong Street, Shamshuipo, Kowloon, Hong Kong. sleep@netvigator.com
    • Anaesthesia. 2004 Feb 1;59(2):173-6.

    AbstractA randomised study was carried out in 60 anaesthetised patients with no evidence of airway difficulties, to compare the Williams Airway Intubator and the Ovassapian Fibreoptic Intubating Airway for bronchoscopic view and ease of railroading a tracheal tube during fibreoptic orotracheal intubation. The Williams Airway Intubator provided a better view of the glottis (41 (68.3%) unobstructed views) than the Ovassapian Fibreoptic Intubating Airway (15 (25%) unobstructed views; p < 0.0001) and a shorter time was needed to complete bronchoscopy (median (95% CI) difference 4 s (1-7); p = 0.01). Four (6.7%) bronchoscopies failed using the Williams Airway Intubator compared with 26 (43.3%) using the Ovassapian Fibreoptic Intubating Airway (p < 0.0001). Both airways provided similar intubating conditions when the glottis was visible.

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