Navigation Links
Sleep Apnea Boosts Death Risk

But it's unclear whether treating the breathing disorder cuts the danger, one expert says

FRIDAY, Aug. 1 (HealthDay News) -- The interrupted nighttime breathing of sleep apnea appears to increase the risk of dying, Australian researchers report.

Earlier studies have linked sleep apnea to increased risk for death. However, these studies were done in sleep centers rather than in the general community. This new study suggests that the risk is present among all people with obstructive sleep apnea.

"This is the first study to demonstrate an independent association between all-cause mortality and sleep apnea in a community-based study," researcher Nathaniel Marshall, a postdoctoral fellow at the Woolcock Institute of Medical Research in Sydney, said in an American Academy of Sleep Medicine news release.

"The size of the increased mortality risk was surprisingly large," Marshall said. "In our particular study, a sixfold increase means that having significant sleep apnea at age 40 gives you about the same mortality risk as somebody aged 57 who doesn't have sleep apnea," he said.

Sleep apnea is a common problem in which one has pauses in breathing or shallow breaths during sleep.

The report was published in the Aug. 1 edition of Sleep.

For the study, Marshall's team collected data on 380 men and women, 40 to 65 years old, who participated in the Busselton Health Study. That study is an ongoing survey of residents in the rural town of Busselton in the state of Western Australia.

Among these people, three had severe obstructive sleep apnea, 18 had moderate sleep apnea, and 77 had mild sleep apnea. The remaining 285 people did not suffer from the condition.

During 14 years of follow-up, about 33 percent of those with moderate to severe sleep apnea died, compared with 6.5 percent of those with mild sleep apnea and 7.7 percent of those without the condition, Marshall's group found.

For patients with mild sleep apnea, the risk of death was not significant and could not be directly tied to the condition, the researchers note.

"Our findings ... remove any reasonable doubt that sleep apnea is a fatal disease," Marshall said. "People who have, or suspect that they have, sleep apnea should consult their physicians about diagnosis and treatment options."

Dr. David M. Claman, director of the Sleep Disorders Center at the University of California, San Francisco, believes this study strengthens the conclusion that severe obstructive sleep apnea does contribute to cardiovascular illness and death.

"This Australian data has additional strengths in that it is a population-based prospective sample with a long period of follow-up," Claman said.

However, the researchers could not assess whether there were any beneficial effects of a common apnea treatment called Continuous Positive Airway Pressure, Claman said. Continuous Positive Airway Pressure (CPAP) treatment blows air into a person's nose to keep the airway from collapsing.

"Further work is needed to see if mild obstructive sleep apnea is associated with adverse effects and if Continuous Positive Airway Pressure treatment reduces cardiovascular risk in larger populations," he said.

In another report in the same issue of the journal, researchers from the University of Wisconsin uncovered findings similar to those in Australia.

In the Wisconsin study, researchers found severe sleep apnea was associated with a threefold increased risk of dying. In addition, for those with moderate to mild sleep apnea, the risk of death was increased 50 percent compared with people without sleep apnea. However, this increased risk was not statistically significant, the researchers report.

"Our findings of significant mortality risk with untreated sleep disordered breathing, in conjunction with prior evidence that Continuous Positive Airway Pressure can effectively treat severe sleep disordered breathing, underscore the immediate need for heightened clinical recognition and treatment of sleep disordered breathing," the researchers concluded.

More information

For more about sleep apnea, visit the U.S. National Library of Medicine.

SOURCES: David M. Claman, M.D., director, University of California San Francisco, Sleep Disorders Center; Aug.1, 2008, Sleep

Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Time to Set Kids Back-to-School Sleep Clocks
2. AASM encourages those student-athletes at risk for developing osa to visit a sleep clinic
3. Sleepless Kids Are Troubled Kids
4. Jefferson specialists studying innovative surgery for effectively treating sleep apnea
5. Work time is the largest influence to the duration of a persons sleep
6. Passive smoking increases sleep disturbance among pregnant women
7. Minorities more likely to have sleep durations associated with increased mortality
8. Lack of sleep among new school-goers leads to behavioral, cognitive problems
9. Work Time Predicts Sleep Time
10. Nicotine in breast milk disrupts infants sleep patterns
11. Pain patients at risk for sleep apnea
Post Your Comments:
Related Image:
Sleep Apnea Boosts Death Risk 
(Date:11/27/2015)... ... 2015 , ... The men and women on this list ... the country. They have overseen financial turnarounds, shown commitment to their community through ... as a whole through their advocacy and professional efforts. , Becker's Hospital Review ...
(Date:11/27/2015)... San Francisco, California (PRWEB) , ... November 27, 2015 , ... ... 1969 Janis Joplin Ann Arbor Michigan boxing style concert posters. This is one of ... 1969 at the Canterbury House at the University of Michigan in Ann Arbor. The ...
(Date:11/26/2015)... ... November 26, 2015 , ... Patients at Serenity Point Recovery, ... together on Thanksgiving Day to share the things that they are most grateful ... Point YouTube channel, patients displayed what they wrote on index cards, describing the ...
(Date:11/26/2015)... ON and Cambridge, ON (PRWEB) , ... November ... ... today the availability of a real-time eReferral system for diagnostic imaging in the ... ultrasounds, X-rays, mammography, BMD and Nuclear Medicine tests directly from their electronic medical ...
(Date:11/26/2015)... ... November 26, 2015 , ... The Catalent Applied Drug Delivery ... to integrate dose form selection in early phase drug development. The first of ... and bringing together the UK’s emerging life sciences companies, corporate partners, and investors, ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... Research and Markets ( ) has announced the ... Type (Dressings, Therapy Devices, Active Wound Care), Application (Surgical ... Geography - Global Forecast to 2020" report to ... --> The purpose of this report is to ... advanced wound care market. It involves deep dive analysis ...
(Date:11/26/2015)... , November 26, 2015 /PRNewswire/ ... --> adds "Global ... and "Investigation Report on China Repaglinide ... 2021 forecasts data and information to ... . --> ...
(Date:11/26/2015)... , Nov. 26, 2015 Research and ... of the "2016 Future Horizons and Growth ... Market: Supplier Shares, Country Segment Forecasts, Competitive Intelligence, ... --> --> ... of the Italian therapeutic drug monitoring market, including ...
Breaking Medicine Technology: