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.

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 September 23, 2014 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 September 23, 2014).

Share This



More Mind & Brain News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

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
Food Addiction Might Be Caused By PTSD

Food Addiction Might Be Caused By PTSD

Newsy (Sep. 18, 2014) New research shows that women who suffer from PTSD are three times more likely to develop a food addiction. Video provided by Newsy
Powered by NewsLook.com
Corporal Punishment on Decline, Debate Renews

Corporal Punishment on Decline, Debate Renews

AP (Sep. 16, 2014) Corporal punishment in the United States is on the decline, but there is renewed debate over its use after Minnesota Vikings running back Adrian Peterson was charged with child abuse. (Sept. 16) Video provided by AP
Powered by NewsLook.com
FDA Eyes Skin Shocks Used at Mass. School

FDA Eyes Skin Shocks Used at Mass. School

AP (Sep. 15, 2014) The FDA is considering whether to ban devices used by the Judge Rotenberg Educational Center in Canton, Massachusetts, the only place in the country known to use electrical skin shocks as aversive conditioning for aggressive patients. (Sept. 15) Video provided by AP
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