Featured Research

from universities, journals, and other organizations

Sleep Apnea Patients At Higher Risk For Deadly Heart Disease; Arrhythmia Found To Increase During REM

Date:
November 17, 2006
Source:
Saint Louis University
Summary:
People with sleep apnea could also be at risk for a particular kind of deadly heart arrhythmia, finds Saint Louis University researchers.

People with sleep apnea could also be at risk for a particular kind of deadly heart arrhythmia, finds Saint Louis University researchers. They presented the findings this week at the American Heart Association Scientific Sessions meeting in Chicago.

Related Articles


Researchers looked at 134 patients with coronary heart disease who hadn't been diagnosed with a sleep disorder. In the patients who had a type of an irregular heartbeat called ventricular premature contraction, more than 40 percent also had severe sleep apnea -- and didn't realize it.

"The real worry is that benign arrhythmia can be a harbinger of a much more serious -- and lethal -- heart rhythm disorder," says principal investigator Raj Bhalodia, M.D., of Saint Louis University School of Medicine. "While most people with the mild version of arrhythmia will be just fine, in some people, it's possible it can worsen during the night and lead to sudden death."

The researchers found that sleep apnea -- which is the collapse of the upper windpipe during sleep, leading to decreased levels of oxygen in the blood -- seemed to exacerbate ventricular premature contraction, especially during the dream stage, or REM, of sleep.

"There's less oxygen being pumped through the body in REM than in other stages of sleep, and this can bring on arrhythmia," Bhalodia says. "The brain is less alert, which is why people don't simply wake up to solve the problem."

Bhalodia says he was interested in studying the link between the two disorders because previous research showed that people with sleep apnea who died suddenly from arrhythmia tended to die more during sleep -- unlike other heart disease patients whose sudden death tends to happen the most often in the few hours after waking up.

Sleep apnea is significantly underdiagnosed, says Bhalodia. Symptoms include feeling sleepy during the day and snoring during sleep. Overweight and obese people also are more likely to suffer from sleep apnea.


Story Source:

The above story is based on materials provided by Saint Louis University. Note: Materials may be edited for content and length.


Cite This Page:

Saint Louis University. "Sleep Apnea Patients At Higher Risk For Deadly Heart Disease; Arrhythmia Found To Increase During REM." ScienceDaily. ScienceDaily, 17 November 2006. <www.sciencedaily.com/releases/2006/11/061116121443.htm>.
Saint Louis University. (2006, November 17). Sleep Apnea Patients At Higher Risk For Deadly Heart Disease; Arrhythmia Found To Increase During REM. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2006/11/061116121443.htm
Saint Louis University. "Sleep Apnea Patients At Higher Risk For Deadly Heart Disease; Arrhythmia Found To Increase During REM." ScienceDaily. www.sciencedaily.com/releases/2006/11/061116121443.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Texas Nurse Nina Pham Cured of Ebola

Texas Nurse Nina Pham Cured of Ebola

AFP (Oct. 25, 2014) — An American nurse who contracted Ebola while caring for a Liberian patient in Texas has been declared free of the virus and will leave the hospital. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) — The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) 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