Stroke victims who have obstructive sleep apnea die sooner than stroke victims who do not have sleep apnea or who have central sleep apnea, according to Swedish researchers, who will present their findings at the American Thoracic Society’s 2008 International Conference in Toronto on Monday, May 19.
The researchers followed 132 stroke patients over 10 years. Twenty-three of those patients had obstructive sleep apnea; 28 of those patients had central sleep apnea. Those with an obstructive apnea-hypopnea index of 15 or greater were 76 percent more likely to die earlier. Those with a lower apnea-hypopnea index of 10 were also at greater risk of early death.
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Increasingly severe sleep-related breathing disorders in older men appear to be associated with a greater risk of abnormal heart rhythms (arrhythmias), according to a report in the June 22, 2009, issue of Archives of Internal Medicine, one of the JAMA/Archives journals. In addition, different types of breathing problems appear more closely associated with different categories of arrhythmia.
Sleep-disordered breathing is a common condition, according to background information in the article. It causes a number of physiologic events that could be stressful to the cardiovascular system, including inadequate blood oxygen levels at night and activation of the sympathetic nervous system (associated with the body’s fight-or-flight response).
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Stroke victims who have obstructive sleep apnea die sooner than stroke victims who do not have sleep apnea or who have central sleep apnea, according to Swedish researchers.
The researchers followed 132 stroke patients over 10 years. Twenty-three of those patients had obstructive sleep apnea; 28 of those patients had central sleep apnea.
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Trackback URL for this post:
http://awakeinamerica.info/2008/top-news/earlier-death-among-stroke-victims-with-apnea/trackback/