Featured Research

from universities, journals, and other organizations

Sleep Apnea Increases Risk Of Heart Attack Or Death By 30 Percent

Date:
May 21, 2007
Source:
American Thoracic Society
Summary:
The nighttime breathing disorder known as obstructive sleep apnea increases a person's risk of having a heart attack or dying by 30 percent over a period of four to five years, according to a new study. The more severe the sleep apnea at the beginning of the study, the greater the risk of developing heart disease or dying, the study found.

The nighttime breathing disorder known as obstructive sleep apnea increases a person's risk of having a heart attack or dying by 30% over a period of four to five years, according to a new study.

The more severe the sleep apnea at the beginning of the study, the greater the risk of developing heart disease or dying, the study found.

"While previous studies have shown an association between sleep apnea and heart disease, ours is a large study that allowed us to not only follow patients for five years and look at the association between sleep apnea and the combined outcome of heart attack and death, but also adjust for other traditional risk factors for heart disease," says researcher Neomi Shah, M.D., of Yale University.

"We recommend that patients who experience symptoms of obstructive sleep apnea--excessive daytime sleepiness, or snoring along with breathing pauses--consult their physician," Dr. Shah says. "There is some evidence to make us believe that when sleep apnea is appropriately treated, the risk of heart disease can be lowered."

In obstructive sleep apnea, the upper airway narrows, or collapses, during sleep. Periods of apnea end with a brief partial arousal that may disrupt sleep hundreds of times a night. Obesity is a major risk factor for sleep apnea.

The most effective treatment for sleep apnea is a technique called nasal CPAP, for continuous positive airway pressure, which delivers air through a mask while the patient sleeps, keeping the airway open. It has proved successful in many cases in providing a good night's sleep, preventing daytime accidents due to sleepiness and improving quality of life.

The study included 1,123 patients referred for sleep apnea evaluation. They underwent an overnight sleep study to determine if they had sleep apnea. Over the next four to five years, they were followed to see how many had any heart disease events (heart attack, coronary angiography or bypass surgery) or died.

Sleep apnea triggers the body's "fight or flight" mechanism, which decreases the amount of blood pumped to the heart. Repeated episodes every night for a few years can starve the heart of enough oxygen when it is combined with the body's decreased oxygen intake due to the frequent breathing stoppages during the night, Dr. Shah says.

This research was presented at the American Thoracic Society 2007 International Conference, on Monday, May 21."Obstructive Sleep Apnea is Associated with an Increased Risk of Coronary Artery Disease and Death" (Session B12; Abstract # 1090)


Story Source:

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


Cite This Page:

American Thoracic Society. "Sleep Apnea Increases Risk Of Heart Attack Or Death By 30 Percent." ScienceDaily. ScienceDaily, 21 May 2007. <www.sciencedaily.com/releases/2007/05/070520183533.htm>.
American Thoracic Society. (2007, May 21). Sleep Apnea Increases Risk Of Heart Attack Or Death By 30 Percent. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2007/05/070520183533.htm
American Thoracic Society. "Sleep Apnea Increases Risk Of Heart Attack Or Death By 30 Percent." ScienceDaily. www.sciencedaily.com/releases/2007/05/070520183533.htm (accessed October 2, 2014).

Share This



More Mind & Brain News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pregnancy Spacing Could Have Big Impact On Autism Risks

Pregnancy Spacing Could Have Big Impact On Autism Risks

Newsy (Oct. 1, 2014) A new study says children born less than one year and more than five years after a sibling can have an increased risk for autism. Video provided by Newsy
Powered by NewsLook.com
Stopping School Violence

Stopping School Violence

Ivanhoe (Oct. 1, 2014) A trauma doctor steps out of the hospital and into the classroom to teach kids how to calmly solve conflicts, avoiding a trip to the ER. Video provided by Ivanhoe
Powered by NewsLook.com
Pineal Cysts: Debilitating Pain

Pineal Cysts: Debilitating Pain

Ivanhoe (Oct. 1, 2014) A tiny cyst in the brain that can cause debilitating symptoms like chronic headaches and insomnia, and the doctor who performs the delicate surgery to remove them. Video provided by Ivanhoe
Powered by NewsLook.com
Burning Away Brain Tumors

Burning Away Brain Tumors

Ivanhoe (Oct. 1, 2014) Doctors are 'cooking' brain tumors. Hear how this new laser-heat procedure cuts down on recovery time. Video provided by Ivanhoe
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