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A Cross Over Case Control Study of a Vibration Positional Device for Treatment of OSA

OSA Clinical Trial

Official title:
A Cross Over Case Control Study Using a Vibration Positional Device for Treatment of Position Dependent Obstructive Sleep Apnea

Clinical Trial Summary

Positional therapy is considered as a kind of conservative treatment especially for patients with OSA which varies with body positions, and has been reported to be useful in selected cases especially those with positional OSA. Positional OSA is present when the overall apnea hyponea index (AHI) is > 5/hr with a supine AHI being more than 2 times of AHI in other positions, in a symptomatic patient. There will be 2 groups of patients in this study. Group 1 consists of patients with positional OSA who refuse CPAP or tolerate CPAP poorly. They will be provided with a vibration device as treatment, which will be worn on the neck during sleep. This device senses the position of the patient during sleep. It will vibrate when the patient lies supine until the patient turns laterally, thus prevents the patient to lie flat during sleep and reduce the severity of OSA. It will be switched on and off for a period of 15 days alternatively with sleep study performed at the end of each period respectively to determine its efficacy in the on and off mode. There will be a wash out period of 1 week in between the on and off period to remove any residual effect. Group 2 consists of patients with positional OSA who are using dental device but response or tolerated poorly. They will use the vibration device with dental device together as dual therapy, to assess the role of combination therapy. The device will be operated in on and off mode with sleep study being performed in a similar manner as in group 1. Informed consent will be signed. Each participant will have 2 sleep studies performed at home, which will be supported technically by technician visiting their home for hook up of necessary equipment.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02613975
Study type Interventional
Source Chinese University of Hong Kong
Contact
Status Completed
Phase N/A
Start date April 2015
Completion date December 2019
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