Navigation Links
Sleep Disorders Linked to Arrhythmias
Date:6/23/2009

Older men with breathing irregularities are at greater risk of heart-rhythm abnormality: study

TUESDAY, June 23 (HealthDay News) -- Older men who have severe sleep-related breathing problems are at increased risk for abnormal heart rhythms, a U.S. study finds.

The study included 2,911 men who underwent sleep testing between 2003 and 2005. Those who had more episodes of paused or shallow breathing during sleep were more likely to have two types of arrhythmias, found Dr. Reena Mehra and colleagues at Case Western Reserve University School of Medicine in Cleveland.

Obstructive sleep apnea -- which involves the partial or complete blockage of airways and is the most common type of sleep-related breathing disorder -- was associated with irregular heartbeats involving the lower chambers of the heart (ventricles). Central sleep apnea -- caused by a malfunction in brain signals that control breathing muscles -- was more strongly associated with irregular heart rhythms in the heart's upper chambers (atria).

The more severe a man's sleep-disordered breathing, the greater his risk for arrhythmia. The researchers also said "there seems to be a threshold effect such that moderate-to-severe sleep-disordered breathing confers the greatest increased odds of clinically significant arrhythmias independent of self-reported heart failure and cardiovascular disease."

The study also found that hypoxia (deficiency in the amount of oxygen reaching body tissues) may trigger ventricular arrhythmia in older men. In addition, the "strong associations between central sleep apnea and atrial fibrillation [arrhythmia originating in the heart's upper chambers] suggest that central sleep apnea may be a sensitive marker of underlying abnormalities in autonomic or cardiac dysfunction associated with atrial fibrillation."

Further studies are needed to look at the impact of treatments for sleep-disordered breathing on cardiac outcomes, the researchers concluded.

The study appears in the June 22 issue of the Archives of Internal Medicine.

More information

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



-- Robert Preidt



SOURCE: JAMA/Archives journals, news release, June 22, 2009


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

Related medicine news :

1. Help for Struggling CPAP Users Comes to Sleep HealthCenters in Weymouth
2. Michael Simmons, DMD presented a poster at the American Academy of Dental Sleep Medicine Meeting
3. Sleep Training Provides Much-Needed Shut-Eye
4. Lack of Good Sleep Might Be Deadly
5. Sleeping Helps Preserve Important Memories
6. Founder of Snoring Isn't Sexy, LLC Addresses Annual Meeting of the American Academy of Dental Sleep Medicine
7. The CJ Foundation for SIDS Announces SLEEP IN SAFETY, GROW IN STYLE Initiative
8. NUVIGIL Jet Lag Disorder Data Presented at the SLEEP 2009 23rd Annual Meeting of the Associated Professional Sleep Societies
9. Neck Size May Affect Severity of Sleep Apnea
10. Couples in Good Relationships Sleep Better
11. As Sleep Improves, Grades Seem to Go Up
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sleep Disorders Linked to Arrhythmias
(Date:6/25/2016)... ... June 25, 2016 , ... ... issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the ... several important health care topics including advance care planning, healthcare costs and patient ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern Californian, Dr. Omkar Marathe ... from the David Geffen School of Medicine at UCLA. He trained in Internal Medicine ... his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had the ...
(Date:6/24/2016)... ... ... Those who have experienced traumatic events may suffer from a complex set of ... or alcohol abuse, as a coping mechanism. To avoid this pain and suffering, Serenity ... event. , Trauma sufferers tend to feel a range of emotions, from depression, guilt, ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... now offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with ... Damon brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Haute Beauty Network, ... M. Weintraub as a prominent plastic surgeon and the network’s newest partner. ... the most handsome men, look naturally attractive. Plastic surgery should be invisible.” He ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016  Global Blood Therapeutics, Inc. (GBT) (NASDAQ: ... novel therapeutics for the treatment of grievous blood-based ... closing of its previously announced underwritten public offering ... public offering price of $18.75 per share. All ... by GBT. GBT estimates net proceeds from the ...
(Date:6/24/2016)... , June 24, 2016 ... has announced the addition of the " Global ... This report ... provides an updated review, including its applications in various ... total market, which includes three main industries: pharmaceutical and ...
(Date:6/24/2016)... 2016 The Academy of Managed Care Pharmacy ... that would allow biopharmaceutical companies to more easily share ... formulary and coverage decisions, a move that addresses the ... The recommendations address restrictions in the sharing ... drug label, a prohibition that hinders decision makers from ...
Breaking Medicine Technology: