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 November 20, 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 November 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

UN Says It Will Scale Up Its Ebola Response

UN Says It Will Scale Up Its Ebola Response

AFP (Nov. 20, 2014) UN Resident Coordinator David McLachlan-Karr and WHO representative in the country Daniel Kertesz updated the media on the UN Ebola response on Wednesday. Duration: 00:51 Video provided by AFP
Powered by NewsLook.com
Takata Offers "sincerest Condolences" To Victims of Malfunctioning Airbag

Takata Offers "sincerest Condolences" To Victims of Malfunctioning Airbag

Reuters - US Online Video (Nov. 20, 2014) U.S. Congress hears from a victim and company officials as it holds a hearing on the safety of Takata airbags after reports of injuries. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Obesity Costs Almost As Much As War And Terrorism

Obesity Costs Almost As Much As War And Terrorism

Newsy (Nov. 20, 2014) The newest estimate of the cost of obesity is pretty jarring — $2 trillion. But how did researchers get to that number? Video provided by Newsy
Powered by NewsLook.com
Ebola Crisis Affecting US Adoptions

Ebola Crisis Affecting US Adoptions

AP (Nov. 20, 2014) The Sanborn family had hoped they'd be able to bring home their 5-year-old adopted son from Liberia by now. But Ebola has forced them to wait. The boy is just one of thousands of orphans in West Africa who've been impacted by the deadly virus. (Nov. 20) 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