Related Experiment Video
Updated: Jan 1, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Nasal patency as a factor for successful transnasal endoscopy
Toshihiko Nagaya1,2, Ryoji Miyahara1, Kohei Funasaka1
1Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Transnasal endoscopy is convenient but can cause pain. This study found that nasal patency significantly impacts patient comfort, particularly reducing nasal pain during the procedure.
Area of Science:
- Gastroenterology
- Otorhinolaryngology
- Medical Devices
Background:
- Transnasal endoscopy offers safety and convenience but often causes patient discomfort.
- Nasal pain is a significant issue for patients undergoing transnasal endoscopy.
- The relationship between nasal patency and patient discomfort is not well understood.
Purpose of the Study:
- To investigate the association between uncomfortable factors during transnasal endoscopy and nasal patency.
- To determine the clinical significance of nasal patency in transnasal endoscopy.
Main Methods:
- 23 patients undergoing transnasal endoscopy had nasal resistance measured pre-procedure.
- Patients completed a questionnaire assessing pain, nausea, and choking on a visual analogue scale.
- Endoscope insertion side was based on patient preference.
Main Results:
- Nasal pain was the most reported discomfort (45%), followed by nausea (18%) and choking (9%).
- Higher unilateral nasal resistance was significantly correlated with increased nasal pain (P = 0.0135).
- Mean scores for nasal pain, choking, and nausea were 3.0, 1.7, and 1.6, respectively.
Conclusions:
- Nasal pain is the primary challenge during transnasal endoscopy.
- Nasal patency is a clinically significant factor influencing patient pain.
- Optimizing the insertion side based on nasal patency can improve patient tolerance.
More Related Videos
07:30Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
06:13Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
Published on: June 20, 2018
Related Concept Videos
Suctioning the Nasopharyngeal Airway
Equipment Required
Administering Oxygen by Nasal Cannula
Nasal Cannulas
A nasal cannula is a lightweight tube split into two prongs placed in the nostrils,...
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
Nose and Nasal Cavity
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...
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...