Clinical evaluation of the Trachospray device for upper airway anaesthesia.

Using a syringe connected to the Trachospray, 2 × 2 ml lidocaine 4% was sprayed through the device into the airway during normal inspiration as the only means of airway anaesthesia. In conclusion, this interventional study demonstrated that the Trachospray provided a fast, adequate level of anaesthesia of the airway, which allows comfortable awake passage through the vocal cords of a flexible bronchoscope in most volunteers. During bronchoscopy, awake fibreoptic tracheal intubation and other awake instrumentations of the airway, it is important to provide comfortable, effective and fast topical anaesthesia of the upper airway. [Extracted from the article]