Featured Research

from universities, journals, and other organizations

Heart Failure Patients With Sleep Apnea At Greater Risk Of Death, According To Study

Date:
May 15, 2007
Source:
American College Of Cardiology
Summary:
Researchers evaluated the potentially deadly effects of sleep apnea in patients with heart failure. Sleep apnea is a disorder in which the brain fails to send messages to the respiratory muscles, causing breathing to stop for short periods throughout the night.

Researchers from the Veterans Affairs Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, evaluated the potentially deadly effects of sleep apnea in patients with heart failure. Sleep apnea is a disorder in which the brain fails to send messages to the respiratory muscles, causing breathing to stop for short periods throughout the night.

Related Articles


The largest of its kind, the study recruited 88 patients with heart failure to spend 2 nights being evaluated in a sleep laboratory. Researchers documented the number of times breathing completely stopped during sleep (apnea) or became shallow for at least 10 seconds (hypopnea). Patients who experienced 5 or more instances of apnea or hypopnea per hour were diagnosed with clinically important sleep apnea.

Over a follow-up that averaged 51 months, patients with central sleep apnea were far more likely to die than those who breathed normally during sleep. The median survival was 45 months in patients with central sleep apnea, as compared to 90 months in those without a sleep disorder. When multiple patient characteristics were taken into account, only 3 were independently linked to an increased risk of death: central sleep apnea, a poorly functioning right ventricle, and a low blood pressure during relaxation of the heart.

"The results of this study are particularly important because previous studies of survival in patients with heart failure, including those considering the role of angiotensin-converting enzyme inhibitors or beta blockers, have not routinely included sleep studies; therefore, the impact of sleep apnea on survival was not known," the authors noted.


Story Source:

The above story is based on materials provided by American College Of Cardiology. Note: Materials may be edited for content and length.


Cite This Page:

American College Of Cardiology. "Heart Failure Patients With Sleep Apnea At Greater Risk Of Death, According To Study." ScienceDaily. ScienceDaily, 15 May 2007. <www.sciencedaily.com/releases/2007/05/070514182205.htm>.
American College Of Cardiology. (2007, May 15). Heart Failure Patients With Sleep Apnea At Greater Risk Of Death, According To Study. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/2007/05/070514182205.htm
American College Of Cardiology. "Heart Failure Patients With Sleep Apnea At Greater Risk Of Death, According To Study." ScienceDaily. www.sciencedaily.com/releases/2007/05/070514182205.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How Facebook Use Can Lead To Depression

How Facebook Use Can Lead To Depression

Newsy (Mar. 1, 2015) Margaret Duffy of the University of Missouri talks about her study on the social network and the envy and depression that Facebook use can cause. Video provided by Newsy
Powered by NewsLook.com
The Best Foods to Battle Stress

The Best Foods to Battle Stress

Buzz60 (Feb. 26, 2015) If you&apos;re dealing with anxiety, there are a few foods that can help. Krystin Goodwin (@krystingoodwin) has the best foods to tame stress. Video provided by Buzz60
Powered by NewsLook.com
Sleeping Too Much Or Too Little Might Increase Stroke Risk

Sleeping Too Much Or Too Little Might Increase Stroke Risk

Newsy (Feb. 26, 2015) People who sleep more than eight hours per night are 45 percent more likely to have a stroke, according to a University of Cambridge study. Video provided by Newsy
Powered by NewsLook.com
Mayor Says District of Columbia to Go Ahead With Pot Legalization

Mayor Says District of Columbia to Go Ahead With Pot Legalization

Reuters - News Video Online (Feb. 25, 2015) Washington&apos;s mayor says the District of Columbia will move forward with marijuana legalization, despite pushback from Congress. Rough Cut (no reporter narration). Video provided by Reuters
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