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Updated: Sep 28, 2026

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
Published on: January 13, 2017
Training course in local anaesthesia of the airway and fibreoptic intubation using course delegates as subjects
V Patil1, G L Barker, R J Harwood
1Department of Anaesthetics, Norfolk and Norwich University Hospital NHS Trust, Colney Lane, Norwich NR4 7UZ, UK.
Background:
We describe a practical method of training anaesthetists in the technique of awake fibreoptic intubation. This is performed on a training course using the delegates as subjects.
Methods:
The first 15 subjects underwent cardiovascular monitoring during airway fibreoptic endoscopy performed by other course members. They were subsequently interrogated by use of a questionnaire.
Results:
Evidence from questionnaires suggests this method of instruction is acceptable in this self-selected group of individuals. Gagging was the commonest unpleasant side-effect of airway endoscopy, although only one delegate rated this as uncomfortable. Fifty-four per cent of subjects found the procedure slightly painful; 46% reported no pain at all. Overall, the procedure was rated as acceptable by 85% of subjects and enjoyable by 15% of subjects. No delegate found endoscopy or intubation distressing. Cardiovascular monitoring revealed pulse rate and arterial pressure changes of less than 25% of baseline values. Paraesthesia developed in one individual and nasal bleeding in two cases, neither of which was clinically significant and did not interfere with endoscopy.
Conclusions:
The use of course delegates as subjects for training was acceptable to anaesthetists and is associated with a low level of discomfort and morbidity.
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