Related Experiment Video
Updated: May 3, 2026

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
[Influence of nasal obstruction on obstructive sleep apnea syndrome]
1Departrunt of Otorhinolary-ngology, Dalian Municipal Central Hospital, Dalian 116033.
Objective:
To explore the influence of nasal obstruction on obstructive sleep apnea syndrome (OSAS).
Method:
18 patients with OSAS concomitant with nasal obstruction and palatopharyngeal obstruction were only operated on nasal cavity to improve ventilation, followed-up six months.
Result:
12 cases were reported remission, 4 cases efficient, and 6 cases unchanged, apnea and hypopnea index (AHI) decreased from 29.9 +/- 2.1 to 22.8 +/- 2.7, and lowest SaO2 (LoSaO2) increased from (75 +/- 2.9)% to (83.4 +/- 2.3)%. There was no significant difference for body mass index (BMI), but there was significant difference for preoperative AHI between non-effective groups and effective groups.
Conclusion:
Nasal obstruction is an important pathogenic factor. It is a necessary method to prevent OSAS by relieving nasal obstruction earlier and operation on nasal cavity is an effective method for the management of OSAS concomitant with nasal obstruction.
More Related Videos
Related Concept Videos
Factors Affecting Pulmonary Ventilation
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Other Pulmonary Disorders
Anatomy of Respiratory System I: Upper Respiratory Tract
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract....
Administering Oxygen by Nasal Cannula
Nasal Cannulas
A nasal cannula is a lightweight tube split into two prongs placed in the nostrils,...
Suctioning the Nasopharyngeal Airway
Equipment Required
Sleep Apnea
The condition is more prevalent among...

