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Updated: Jun 12, 2026

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation
Published on: August 2, 2024
Transnasal route: new approach to endoscopy.
1Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea.
Transnasal esophagogastroduodenoscopy (TN-EGD) offers a safer alternative to traditional upper endoscopy with reduced physiological changes and less discomfort. This minimally invasive technique supports various gastrointestinal procedures without conscious sedation, increasing its clinical utility.
Area of Science:
- Gastroenterology
- Endoscopy
Background:
- Transnasal esophagogastroduodenoscopy (TN-EGD) is an emerging upper gastrointestinal endoscopy technique.
- TN-EGD demonstrates improved patient safety compared to transoral approaches, evidenced by smaller changes in vital signs.
Purpose of the Study:
- To highlight the safety and versatility of TN-EGD.
- To discuss the range of gastrointestinal procedures amenable to TN-EGD.
Main Methods:
- Comparison of physiological changes between TN-EGD and transoral esophagogastroduodenoscopy.
- Review of clinical applications of TN-EGD in various gastrointestinal interventions.
Main Results:
- TN-EGD is associated with significantly smaller alterations in blood pressure, heart rate, and oxygen saturation.
- Reduced pain and gag reflex allow TN-EGD to be performed without conscious sedation.
Conclusions:
- TN-EGD is a safe and effective endoscopic procedure suitable for a wide array of gastrointestinal interventions.
- Wider adoption of TN-EGD can be facilitated by standardized training, guidelines, improved devices, and insurance coverage.
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