Featured Research

from universities, journals, and other organizations

Electronic nose could be used to detect sleep apnea

Date:
October 24, 2012
Source:
European Lung Foundation
Summary:
An electronic nose, used to detect the presence of molecules in the breath of a patient, could be used to diagnose obstructive sleep apnea.

An electronic nose, used to detect the presence of molecules in the breath of a patient, could be used to diagnose obstructive sleep apnea.

A new study, published online on October 25, 2012 in the European Respiratory Journal, could make the diagnosis of the condition quick and inexpensive compared to current methods.

The gold standard used to identify sleep apnea is an overnight sleep test. This is technically demanding, time-consuming and cost-intensive.

Electronic nose devices have been shown to distinguish between a number of diseases; they do this by analyzing the pattern of volatile organic compounds in breath samples. This is the first study that has assessed whether the electronic nose could be used to confirm the presence of sleep apnea.

Researchers analyzed the breath of 40 sleep apnea patients and 20 healthy controls. Sleep apnea is associated with inflammation in the upper airways, which the researchers suggested could be detected by analysis of the exhaled breath of the patients. The study also aimed to assess whether the electronic nose could detect the effects of the standard treatment for sleep apnea i.e. continuous positive airway pressure (CPAP).

The researchers performed questionnaires and sleep examinations to confirm sleep apnea in 40 patients. They also collected throat washings from patients to measure any improvement in their condition following treatment with CPAP. The researchers then used a statistical analysis model to calculate the accuracy of the electronic nose.

The results found that the electronic nose could effectively diagnose sleep apnea. The statistical analysis showed that sleep apnea was detected with a sensitivity of 93%.

Lead author, Dr Timm Greulich, from the Marburg Hospital in Germany, said: "This is the first time an electronic nose has been tested in the setting of sleep apnea diagnosis. The electronic nose could be useful in two ways. First, it can rule out the disease in a low prevalence population. Secondly, in a population with a high risk of sleep apnea, the device could be used to help decide who would need to undergo an overnight sleep examination. Following these results, we foresee that the use of an electronic nose could reduce costs by more appropriately selecting patients who require the sleep examination."

European Respiratory Journal Associate Editor, Professor Ramon Farre, commented: "This is an interesting study, adding to a growing body of evidence demonstrating that electronic noses are a future potential tool for the detection of respiratory diseases. Although the results are encouraging, it is important to acknowledge the limitations in this kind of statistical analysis and it is not yet definite proof that this is an accurate diagnostic tool. It is, however, the first study to consider the application of an electronic nose for sleep apnea and we look forward to seeing future research expanding on this important initial research."


Story Source:

The above story is based on materials provided by European Lung Foundation. Note: Materials may be edited for content and length.


Journal Reference:

  1. T. Greulich, A. Hattesohl, A. Grabisch, J. Koepke, S. Schmid, S. Noeske, C. Nell, M. Wencker, R. A. Jorres, C. F. Vogelmeier, U. Kohler, A. R. Koczulla. Detection of obstructive sleep apnoea by an electronic nose. European Respiratory Journal, 2012; DOI: 10.1183/09031936.00091712

Cite This Page:

European Lung Foundation. "Electronic nose could be used to detect sleep apnea." ScienceDaily. ScienceDaily, 24 October 2012. <www.sciencedaily.com/releases/2012/10/121024204851.htm>.
European Lung Foundation. (2012, October 24). Electronic nose could be used to detect sleep apnea. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2012/10/121024204851.htm
European Lung Foundation. "Electronic nose could be used to detect sleep apnea." ScienceDaily. www.sciencedaily.com/releases/2012/10/121024204851.htm (accessed September 23, 2014).

Share This



More Health & Medicine News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Costs Keep Mounting

Ebola Costs Keep Mounting

Reuters - Business Video Online (Sep. 23, 2014) The WHO has warned up to 20,000 people could be infected with Ebola over the next few weeks. As Sonia Legg reports, the implications for the West African countries suffering from the disease are huge. Video provided by Reuters
Powered by NewsLook.com
Ebola Cases Could Reach 1.4 Million Within 4 Months

Ebola Cases Could Reach 1.4 Million Within 4 Months

Newsy (Sep. 23, 2014) Health officials warn that without further intervention, the number of Ebola cases in Liberia and Sierra Leone could reach 1.4 million by January. Video provided by Newsy
Powered by NewsLook.com
WHO: Ebola Cases to Triple in Weeks Without Drastic Action

WHO: Ebola Cases to Triple in Weeks Without Drastic Action

AFP (Sep. 23, 2014) The number of Ebola infections will triple to 20,000 by November, soaring by thousands every week if efforts to stop the outbreak are not stepped up radically, the WHO warned in a study on Tuesday. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
5 Ways Men Can Prevent Most Heart Attacks

5 Ways Men Can Prevent Most Heart Attacks

Newsy (Sep. 23, 2014) No surprise here: A recent study says men can reduce their risk of heart attack by maintaining a healthy lifestyle, which includes daily exercise. 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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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