• Br J Anaesth · Feb 1997

    Clinical Trial

    The laryngeal mask airway and the tracheal route for drug administration.

    • R Alexander, H Swales, A Pickford, and G B Smith.
    • Department of Anaesthetics, Queen Alexandra Hospital, Cosham, Portsmouth.
    • Br J Anaesth. 1997 Feb 1; 78 (2): 220-1.

    AbstractWe undertook a study to observe if a preformed curved plastic cannula, the Trachojet, could be passed blindly down a laryngeal mask airway into the trachea in 100 anaesthetized patients. Using air aspiration and a fibreoptic scope to confirm placement of the cannula, it passed into the trachea in only 27% of patients. The air aspiration technique used for detecting tracheal cannulation was 100% successful when the cannula was inserted fully. We conclude that it may not be possible to gain access to the trachea with a Trachojet for drug administration if a laryngeal mask airway is used to maintain the patient's airway.

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