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
[An adjustable appliance in treatment of obstructive sleep apnea-hypopnea syndrome]
Xue-mei Gao1, Xiang-long Zeng, Min-kui Fu
1Department of Orthodontics, Peking University School of Stomatology, Beijing 100081, China. xmgao@263.net
Objective:
The research tended to approach applying of adjustable appliance in the treatment of obstructive sleep apnea-hypopnea syndrome (OSAHS).
Methods:
30 OSAHS patients (24 males and 6 females) participated in the adjustable group, with a mean age of (49.9 +/- 9.9) years old. AHI was (33.1 +/- 22.7) per hour. The control group consisted of 30 OSAHS patients wearing ordinary mandibular advancing appliance in the corresponding period, with age, weight and AHI at the same level. Monoblind way was designed to obtain and analyze the therapy differences. Differences in changes of upper airway, mandible and hyoid bone were also analyzed among the doctor-experience position, final adjusted position and original position.
Results:
AHI decreased by 85.5% in the adjustable appliance group. The change in AHI was greater significantly (P = 0.025) in the adjustable group than in the control group. In the final adjusted position, the amount of mandibular advancement was (5.8 +/- 1.4) mm [(71 +/- 26)% of the maximum range of protrusion] and that of bite opening (the distance between upper and lower incisor edges) was (4.6 +/- 1.1) mm.
Conclusions:
The adjustable appliance had shown better therapy effect in OSAHS patients. The final adjusted position provided useful information on determining mandibular position using other appliances.
Related Concept Videos
Sleep Apnea
The condition is more prevalent among...
Mechanical Ventilation III: Noninvasive Ventilation
Noninvasive Positive-Pressure Ventilation (NIPPV)
Cardiopulmonary Resuscitation II: ACLS Airway Management
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
Oxygen Delivering System I: Nasal Cannula and Face Mask
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...