Featured Research

from universities, journals, and other organizations

Novel device quantifies the efficacy of oral appliance therapy for snoring and sleep apnea

Date:
June 13, 2011
Source:
American Academy of Sleep Medicine
Summary:
New research quantified the efficacy of mandibular advancement splints using a self-administered, at-home device to monitor snoring and sleep-disordered breathing.

New research presented on June 11, at the 20th Anniversary Meeting of the American Academy of Dental Sleep Medicine (AADSM) in Minneapolis, Minn., quantified the efficacy of mandibular advancement splints (MAS) using a self-administered, at-home device to monitor snoring and sleep-disordered breathing.

Clinical assessment of MAS efficacy in the treatment of snoring and obstructive sleep apnea (OSA) is based predominantly on subjective reports by the patient and partner, and less commonly, on the apnea hypopnea index (AHI), which is the average number of pauses in breathing that occur per hour of sleep. The current study used the Sonomat, a portable, unobtrusive device that has sensors contained within a mattress overlay. These sensors measure AHI by detecting and recording snoring, breathing and body movements.

Results show that MAS treatment reduced the average AHI from 10.3 events per hour to 3.8 events per hour. The respiratory event movement index (RMI), which records more types of events than AHI, was reduced from 15.9 events per hour to 7.6 events per hour.

There was also a decrease in the percentage of patients who snored from 38 percent without the MAS to 15 percent with the MAS. Snoring decreased overall, but 12 of the 42 subjects still snored for greater than 25 percent of the night, with several having substantial increases in snoring.

"The primary findings in our study were that MAS devices were effective in the treatment of OSA by reducing AHI in moderate and severe OSA patients," said principal investigator and lead author Joachim Ngiam, BDS. "Overall, significant reductions in snoring were found to occur with MAS therapy with greater changes seen in OSA patients."

The study involved data from 42 men and women over two consecutive nights. The subjects slept the first night without the MAS and the second night with the MAS advanced to 70 percent of maximum jaw protrusion.

The researchers also found what appeared to be a devolutionary effect with MAS treatment in attenuating or reversing the progression of a snorer's disease to OSA, as a substantial number of patients transitioned to lower AHI and snoring categories.

Despite favorable reductions in AHI with MAS treatment, snoring may persist and patients may question treatment success, indicating a need for quantification of therapy efficacy.

"Although significant reductions in AHI and snoring were observed, residual snoring may persist or even increase in some patients," said Ngiam. "A significant proportion of patients, 29 percent, still snored greater than 25 percent of total sleep time, with several having substantial increases despite MAS therapy."


Story Source:

The above story is based on materials provided by American Academy of Sleep Medicine. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Sleep Medicine. "Novel device quantifies the efficacy of oral appliance therapy for snoring and sleep apnea." ScienceDaily. ScienceDaily, 13 June 2011. <www.sciencedaily.com/releases/2011/06/110613094042.htm>.
American Academy of Sleep Medicine. (2011, June 13). Novel device quantifies the efficacy of oral appliance therapy for snoring and sleep apnea. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2011/06/110613094042.htm
American Academy of Sleep Medicine. "Novel device quantifies the efficacy of oral appliance therapy for snoring and sleep apnea." ScienceDaily. www.sciencedaily.com/releases/2011/06/110613094042.htm (accessed September 21, 2014).

Share This



More Health & Medicine News

Sunday, September 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Sierra Leone's Nationwide Ebola Curfew Underway

Sierra Leone's Nationwide Ebola Curfew Underway

Newsy (Sep. 20, 2014) Sierra Leone is locked down as aid workers and volunteers look for new cases of Ebola. Video provided by Newsy
Powered by NewsLook.com
Changes Found In Brain After One Dose Of Antidepressants

Changes Found In Brain After One Dose Of Antidepressants

Newsy (Sep. 19, 2014) A study suggest antidepressants can kick in much sooner than previously thought. Video provided by Newsy
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins