Related Experiment Video
Updated: Sep 4, 2025

Author Spotlight: Advancing Awake Nasotracheal Intubation with Flexible Video Rhino-Laryngoscopes
Published on: August 2, 2024
Alternative Technique for Nasotracheal Intubation Using a Flexible Fiberoptic Scope
Masanori Tsukamoto1, Izumi Kameyama1, Riho Miyajima1
1Department of Dental Anesthesiology, Kyushu University Hospital, Fukuoka, Japan.
A novel nasotracheal intubation technique uses separate nasal passages for the endotracheal tube (ETT) and fiberoptic scope. This allows direct visualization of the ETT tip, preventing laryngeal damage and ensuring safe intubation.
Area of Science:
- Anesthesiology
- Oral and Maxillofacial Surgery
- Airway Management
Background:
- Nasotracheal intubation is crucial in oral maxillofacial surgery for improved surgical access.
- Traditional fiberoptic intubation allows visualization of airway anatomy but not the endotracheal tube (ETT) tip.
- Difficulty advancing the ETT beyond the glottis can occur due to tip impingement.
Purpose of the Study:
- To introduce a novel nasotracheal intubation technique using a fiberoptic scope.
- To enhance the safety and efficiency of nasotracheal intubation in oral surgery.
- To minimize complications associated with endotracheal tube advancement.
Main Methods:
- A new technique involves separate insertion of the ETT and fiberoptic scope into the pharyngeal space via different nasal cavities.
- Continuous observation of the glottis and ETT tip is maintained throughout the advancement process.
- Allows for immediate adjustments (rotation or withdrawal) if resistance is encountered.
Main Results:
- The novel technique enables continuous visualization of the ETT tip as it advances into the trachea.
- Direct visualization helps prevent impingement of the ETT tip on laryngeal structures.
- Facilitates safe and smooth intubation by minimizing contact and allowing prompt corrective actions.
Conclusions:
- This technique provides continuous indirect vision of the ETT during nasotracheal intubation.
- It significantly reduces the risk of laryngeal trauma and facilitates unhindered passage into the glottis.
- Offers a safer and more controlled method for nasotracheal intubation in challenging cases.
Related Concept Videos
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques
Endotracheal Intubation I: Procedure
The ET tube comprises various components, including a standard adaptor to attach a bag-valve-mask (BVM) or ventilator, a cuff, a pilot balloon, and radiopaque markings along its length to measure the insertion distance. The tube sizes...
Suctioning the Nasopharyngeal Airway
Equipment Required
Endotracheal Tube Extubation
Procedure
Extubation removes the endotracheal tube (ETT) from the patient on mechanical ventilation. It requires a well-coordinated, multidisciplinary approach involving physicians, nurses, respiratory therapists, and other healthcare professionals....
Tracheostomy: Procedure and Tubes
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
Endoscopic Studies I: Bronchoscopy and Thoracoscopy
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...

