Related Experiment Video
Updated: Aug 18, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
[The effects of body posture on upper airway in OSAHS patients]
Shuhua Li1, Hongjin Shi, Jimin Bao
1Department of Otolaryngology, Shenyang General Hospital of PLA, Shenyang, 110015, China.
Objective:
To explore the effects of body posture on upper airway shapes in OSAHS patients.
Method:
Thirty-one male OSAHS patients were included in the study. The fibre endoscopic photos were taken on palate and lingua region upper airway at normal breath at supine with 30 degree neck flexion, supine and right lateral recumbent position, respectively. The cross section area and the dimensions of palate and lingua region upper airway were studied by running image tools software in computer.
Result:
In OSAHS patients, there were obviously difference in the area and arrowy dimension of palate airway among three posture, and so to in area, arrowy and coronary dimension of lingua airway.
Conclusion:
The study suggests that the body posture changes have obviously influence on upper airway, and the influence is the base of apnea increasing at special posture.
Related Concept Videos
Cardiopulmonary Resuscitation II: ACLS Airway Management
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Suctioning the Oropharyngeal Airway
After assembling the equipment, the nurse should practice hand hygiene and don appropriate PPE according to infection control guidelines to avoid the...
Sleep Apnea
The condition is more prevalent among...
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...