Navigation Links
Sleep Apnea Seems to Wear Down the Brain
Date:1/15/2009

Repeated blood flow changes may be at the root of higher stroke risk, study says

THURSDAY, Jan. 15 (HealthDay News) -- Repeated surges and drops in blood pressure and blood flow in the brain might make people with sleep apnea more prone to have a stroke and die in their sleep, a new study says.

The Yale University School of Medicine study found that obstructive sleep apnea causes a decreased blood flow to the brain during episodes. When this happens, the organ's blood pressure rises. And when it happens repeatedly, the brain's ability to protect itself in such situations eventually wears down.

An earlier study by the Yale team found that people with sleep apnea are three times more likely to have a stroke or die than people of similar health who don't have the breathing disorder.

More than 18 million Americans have been diagnosed with sleep apnea, a condition in which the upper airway becomes blocked so that breathing is hampered or even ceases. This causes blood oxygen levels to drop and blood pressure to rise, but order is restored when the person momentarily awakens. The cycle repeats itself throughout the night.

The study found that those with sleep apnea had lower cerebral blood flow velocity and notably lower blood oxygen levels during sleep than did people without the condition. They also took longer to recover from a drop in blood pressure and to re-establish normal blood flow to the brain. This, the researchers said, points to problems with cerebral autoregulation -- the process in which the brain regulates blood flow to meet its needs.

The findings were published in the December 2008 issue of the Journal of Applied Physiology.

Sleep apnea can be treated in several ways, including use of an airway pressurization mask -- a method known to normalize cerebral autoregulation.

More information

The U.S. National Heart, Lung, and Blood Institute has more about sleep apnea.



-- Kevin McKeever



SOURCE: The American Physiological Society, news release, Jan. 6, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Doctors Urged to Screen Diabetics for Sleep Apnea
2. Welsh Laboratory Discovers Natural Antidote for Sleep Disturbance Caused by Cell Phones; Don't Disturb Me! Asphalia for Natural Sleep
3. Dr. Mitchell L. Petusevsky, M.D., F.C.C.P. Meets Growing Demand for the Treatment of Sleep and Pulmonary Disorders
4. Holiday Weight Gain May Contribute to Sleep Apnea Extra Pounds May Produce Severe Problems for Adults
5. Sleep Disorder Could Signal Neurological Disease
6. Proper Sleep May Help Clear Arteries
7. Cure for Sleep Deprivation and Weakened Immune Systems: Treadmill Desk
8. Later school start times may improve sleep in adolescents and decrease risk of auto accidents
9. Data mining of inpatient records reveals the disease pattern of obstructive sleep apnea
10. AmericInn Hotels Partners With Nationally Recognized Sleep Expert Dr. Christopher Drake, Announces Launch of Sleep Better America Campaign
11. To Sleep, Perchance to Remember
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sleep Apnea Seems to Wear Down the Brain 
(Date:6/28/2017)... , ... June 28, 2017 , ... ... announce that its 50ml Liquid Stevia Sweet Drops™ have received the Non-GMO Project ... verification process from the Non-GMO Project, the only third-party verification for non-GMO foods ...
(Date:6/28/2017)... ... 28, 2017 , ... Anyone with a remote control has seen the never-ending twists on the ... flipper will get rich in no time. But what about the buyers of the ... the buyer of a flipped house. An email recently sent to Gary Case said, ...
(Date:6/28/2017)... ... June 28, 2017 , ... American Farmer proudly announces the participation of ... winning television series, scheduled to broadcast fourth quarter 2017. American Farmer airs Tuesdays at ... supplier of garden pea seed. As demand grew, the small company located in Moscow, ...
(Date:6/28/2017)... Cincinnati, OH (PRWEB) , ... June 28, 2017 ... ... residents of Hamilton County and the surrounding regions access to insurance assistance and ... conjunction with Matthew 25: Ministries to assist families in the region facing financial ...
(Date:6/27/2017)... ... June 27, 2017 , ... Nearly ... to survey data released today by the American Society for Dermatologic Surgery ... indicates the percentage of consumers considering a cosmetic medical procedure has doubled since ...
Breaking Medicine News(10 mins):
(Date:5/26/2017)... International plc (NASDAQ: ENDP ) announced today that ... Company in a fireside chat at Goldman Sachs, 38 th ... at 10:40 a.m. PT / 1:40 p.m. ET. The conference ... Palos Verdes, CA. A live webcast ... the Company,s website at http://www.endo.com/investors/overview . Participants should allow ...
(Date:5/24/2017)... , May 24, 2017  ivWatch LLC ... Equipment Manufacturer (OEM) Board to enable seamless integration ... patient monitoring systems, infusion pumps and other devices. ... will be able to help health care customers ... reduced risks related to IV therapy. ...
(Date:5/22/2017)... VALLEY COTTAGE, N.Y. , May 22, 2017 ... natural antiviral treatment Gene-Eden-VIR/Novirin, announces the launch of ... in plain English, the results of a clinical ... after one year treatment with Gene-Eden-VIR/Novirin in individuals ... is important to note that there are no ...
Breaking Medicine Technology: