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"Our results could have a substantial impact on our thinking of the risks associated with sleep apnea in women," the study's lead author, Dr. Suzie Bertisch, of Beth Israel Deaconess Medical Center in Boston, said in a news release from the American Thoracic Society.
"From a clinical standpoint, the results could help clinicians provide more proactive treatment for reducing cardiovascular risk in their female [sleep apnea] patients," she added.
Obstructive sleep apnea is a common disorder that causes shallow breathing or repeated pauses in breathing during sleep, according to the U.S. National Heart, Lung, and Blood Institute. The pauses can last a few seconds or minutes. Common signs of sleep apnea include snoring, choking or gasping sounds, morning headaches and excessive daytime sleepiness.
For the current study, researchers examined data from more than 5,400 people who took part in a long-term study of how sleep apnea affects heart health. The average follow-up time in the study was more than 11 years.
The analysis revealed that sleep apnea increases the chance of stroke and that the risk is equally high in women and men.
The study was scheduled for presentation Tuesday at the American Thoracic Society's annual meeting in San Diego. Research presented at meetings is generally considered preliminary until results are published in a peer-reviewed journal.
Bertisch said further research is needed to see if sleep apnea treatment lowers stroke risk in both men and women, and also called for additional studies of sleep apnea in women.
-- Robert Preidt
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SOURCE: American Thoracic Society, news release, May 20, 2014