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Updated: Sep 9, 2025

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
Published on: January 13, 2017
An Alternative and Efficient Topicalization Technique for the Difficult Airway: A Case Series
Rachel H Seet1, Jocelyn Ong2, Avinash Gobindram1
1Anaesthesia and Surgical Intensive Care, Changi General Hospital, Singapore Health Services, Simei, SGP.
This study presents a new, efficient technique for airway topicalization during awake tracheal fiberoptic intubation (ATI) in difficult airway patients. The method improves local anesthetic delivery, ensuring comfort and procedural success.
Area of Science:
- Anesthesiology
- Airway Management
- Medical Devices
Background:
- Effective airway topicalization is crucial for awake tracheal fiberoptic intubation (ATI), especially in difficult airway scenarios.
- Conventional methods frequently provide insufficient anesthesia at the laryngeal inlet, causing patient distress and procedural challenges.
- Excessive local anesthetic (LA) use is common with existing techniques.
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