Navigation Links
Obstructive sleep apnea raises risk of sudden cardiac death, Mayo Clinic finds

ROCHESTER, Minn. -- People who have obstructive sleep apnea -- when a person stops breathing for periods during sleep -- have a greater risk of sudden cardiac death, according to a study published online today in the Journal of the American College of Cardiology. An estimated 12 million American adults have obstructive sleep apnea, and many of them are undiagnosed, according to the National Heart, Lung and Blood Institute (NHLBI).

In the study, funded by the NHLBI, 10,701 people who participated in sleep studies were followed for an average of 5.3 years for incidence of sudden cardiac death. In that time, 142 patients died of sudden cardiac death. The most common predictors were an age of 60 or older, 20 or more apnea episodes per hour of sleep, and an oxygen saturation below 78 percent during sleep.

"What we found that is new with this study is that if you have sleep apnea, your risk of sudden death increases almost twofold, particularly if you stopped breathing more than 20 times per hour of sleep and if you had severe falls in oxygen saturation during sleep," says senior author Virend Somers, M.D., Ph.D., a Mayo Clinic cardiologist.

When a person is breathing properly, the oxygen saturation level -- when air flows through the lungs -- during sleep is 100 percent, Dr. Somers says. This study showed that if a person is not breathing properly and the oxygen saturation level falls to as low as 78 percent, the risk of sudden cardiac death significantly increases, he says.

Lead author Apoor Gami, M.D., says Mayo Clinic's previous research showed that people with sleep apnea have a much higher risk of sudden cardiac death between midnight and 6 a.m., when people are typically asleep, while people without sleep apnea die more often from sudden cardiac death between 6 a.m. and noon.

"So we knew that sleep apnea changed the time of sudden cardiac death, but we didn't know if it changed the overall risk," Dr. Gami says. "This new study shows that sleep apnea does indeed increase the overall risk of sudden cardiac death independently of other important risk factors.

"The prevalence of obstructive sleep apnea in Western populations is high, and because of the relationship between weight and sleep apnea, the current obesity epidemic is going to further increase the scope of this problem," noted Dr. Gami, formerly at Mayo Clinic and now a cardiologist at Midwest Heart Specialists-Advocate Medical Group in Elmhurst, Ill.

Research has shown that sleep apnea is potentially an important cause of cardiovascular conditions, such as high blood pressure, atrial fibrillation, heart attacks and strokes, Dr. Somers says. Sleep apnea is treatable. In addition to weight loss, physicians also can recommend sleep posture changes and devices, such as a machine that delivers air pressure through a mask placed over the nose while a person sleeps, he says.


Contact: Traci Klein
Mayo Clinic

Related medicine news :

1. Obstructive sleep apnea is associated with diabetic peripheral neuropathy
2. Rhode Island Hospital study: Bariatric patients with obstructive sleep apnea fail to show symptoms
3. Non-invasive treatment for children with obstructive sleep apnea suggested by Ben-Gurion University study
4. Adenotonsillectomy may help resolve obstructive sleep apnea in children with Prader-Willi syndrome
5. Director of the Center for Craniofacial & Dental Sleep Medicine Provides New Cutting Edge Technology for Patients Suffering with Obstructive Sleep Apnea
6. Dr. Kanani, Woodland Hills Dentist: Dangers of Tooth Damage and Obstructive Sleep Disorder
7. Coffee Drinking in Pregnancy Wont Lead to Sleepless Baby: Study
8. Disrupted Sleep May Raise Risk for Obesity, Diabetes: Study
9. Depressed moms behavior may play role in infants sleep problems
10. Depressed Moms May Hinder Babies Sleep
11. Poor Sleep Heightens Ringing Ear Disease Symptoms: Study
Post Your Comments:
(Date:10/13/2017)... ... October 13, 2017 , ... The American Board of Family Medicine's (ABFM) Board ... Chief Executive Officer, succeeding Dr. James C. Puffer upon his retirement. Dr. Newton will ... Dr. Puffer’s retirement at the end of 2018. Upon assuming the role of President ...
(Date:10/13/2017)... ... ... Apple Rehab Shelton Lakes , which specializes in the delivery of sub-acute ... of a disaster drill on October 3rd. , Apple Rehab participated with the Shelton ... well as the Connecticut Long Term Care Mutual Aid Plan (LTC-MAP). The LTC-MAP ...
(Date:10/13/2017)... ... , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has ... least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a ... centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... for healthcare compliance program management, will showcase a range of technology and learning ... Assisted Living (NCAL) Convention and Expo to be held October 14–18, 2017 at ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical ... Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. ... honor of Morris F. Collen, a pioneer in the field of medical informatics, this ...
Breaking Medicine News(10 mins):
(Date:9/28/2017)... , Sept. 28, 2017 Hill-Rom Holdings, ... 2017 earnings conference call and webcast on Friday, November ... a.m. (EDT) and ending at approximately 8:30 a.m. (CDT) ... discussing the company,s 2017 financial performance and guidance for ... opportunities, initiatives to enhance operational performance, and long-range financial ...
(Date:9/27/2017)... 27, 2017  Commended for their devotion to personalized service, ... as number one in the South Florida Business Journal,s 50 ... 5000 yearly list, the national specialty pharmacy has found its ... will soon be honored by SFBJ as the 2017 ... Set to receive his award in October, Bardisa said ...
(Date:9/25/2017)...   Montrium , an industry leader in ... IQPC Trial Master Files & Inspection Readiness Conference ... Clinical Services has selected eTMF Connect ... EastHORN, a leading European contract research organization (CRO), ... to enable greater collaboration with sponsors, improve compliance ...
Breaking Medicine Technology: