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Updated: Jun 13, 2026

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
Published on: January 13, 2017
Throat spray, sedation or anaesthetic?
1Honorary Professor of Gastroenterology, University of Leeds, Leeds, UK. anthony.axon@btinternet.com
Sedation for digestive endoscopy depends on procedure invasiveness, patient preference, and safety. While many tolerate unsedated upper endoscopy, colonoscopy often requires sedation or anesthesia.
Area of Science:
- Gastroenterology
- Anesthesiology
Background:
- Digestive endoscopy encompasses diverse procedures with varying sedation needs.
- Patient comfort, procedure invasiveness, and operator requirements influence sedation decisions.
Purpose of the Study:
- To introduce the available choices and approaches in endoscopic sedation practice.
- To discuss the factors governing the need for sedation in digestive endoscopy.
Main Methods:
- Review of current practices and literature on endoscopic sedation.
- Discussion of patient-reported tolerance and operator considerations.
Main Results:
- Many patients accept unsedated upper endoscopy with throat spray.
- Fewer patients opt for unsedated colonoscopy, highlighting procedural differences.
- Sedation and general anesthesia present distinct clinical advantages and disadvantages.
Conclusions:
- Sedation choices in digestive endoscopy are multifactorial, balancing patient and procedural needs.
- Understanding these choices is crucial for optimizing patient experience and safety in endoscopic procedures.
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