Daytime impairments in older men with obstructive sleep apnea are related to total sleep timeFebruary 02, 2009This study is the first to evaluate the extent to which any associations between obstructive sleep apnea severity and daytime functional impairments were confounded by short sleep duration in a population-based sample of older men Westchester, Ill. - A study in the Feb. 1 issue of the journal SLEEP shows that daytime functional impairments in older men with obstructive sleep apnea (OSA) are largely explained by total sleep time rather than OSA severity. A modest link between OSA severity and daytime sleepiness, measured by the Epworth Sleepiness Scale, was no longer statistically significant after controlling for total sleep time. Neither sleep disturbances, measured by the Pittsburgh Sleep Quality Index, nor sleep-related quality of life, measure by the Functional Outcome of Sleep Questionnaire, were associated with OSA severity; all three measures were modestly associated with total sleep time. According to lead author Dr. Eric J. Kezirian, director of the division of sleep surgery in the department of otolaryngology at the University of California in San Francisco, the study shows that the functional consequences of OSA in older men may differ from those in younger populations and may need to be measured with instruments designed specifically for the demographic. "While the disorder is associated with behavioral and health-related effects that improve with treatment in young and middle-aged adults, there is little evidence concerning its adverse consequences or treatment benefits in older adults," said Kezirian. "This study showed that in a community-dwelling group of older men, the severity of OSA was not associated with daytime sleepiness, sleep symptoms, or sleep-related quality of life, after controlling for sleep duration." Data were collected from 2,849 men with a mean age of 76.4 years. Thirteen percent (365/2849) of participants had an ESS of at least 10, a level commonly considered to be excessive sleepiness. The presence and severity of OSA were measured by in-home polysomnography. Overall the study group demonstrated mild to moderate OSA with an average apnea-hypopnea index (AHI) of 17.0. Forty-three percent had an AHI of 15 or more. Average total sleep time was measured by actigraphy over multiple nights. Thirty-one percent (889/2849) had a short sleep time of less than 360 minutes per night, and the prevalence of short sleep time increased with AHI. Individuals with higher AHI levels also were slightly older than men with lower AHI levels, and they had a higher body mass index, poorer self-reported health status and a higher Geriatric Depression Scale score. Keizirian said that having a better understanding of OSA in older adults will help medical professionals treat the condition more effectively. According to the American Academy of Sleep Medicine, OSA is a sleep-related breathing disorder that involves a decrease or complete halt in airflow despite an ongoing effort to breathe. It occurs when the muscles relax during sleep, causing soft tissue in the back of the throat to collapse and block the upper airway. This leads to partial reductions (hypopneas) and complete pauses (apneas) in breathing that can produce abrupt reductions in blood oxygen saturation. Brief arousals from sleep restore normal breathing but can cause a fragmented quality of sleep. Most people with sleep apnea snore loudly and frequently, and they often experience excessive daytime sleepiness. American Academy of Sleep Medicine |
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| Related Obstructive Sleep Apnea Current Events and Obstructive Sleep Apnea News Articles Improved diet and exercise alone unlikely to cure obstructive sleep apnea in obese patients A study in the Oct. 15 issue of the Journal of Clinical Sleep Medicine found that while a strict diet and exercise program may benefit obese patients with mild to moderate obstructive sleep apnea (OSA), it is unlikely to eliminate the condition. Minimally invasive procedure effective for treating snoring Radiofrequency ablation, a procedure that uses heat to shrink the tissue of the soft palate, is an effective and minimally invasive procedure that can be used to treat patients who snore. Many patients with sleep apnea also suffer from GI tract conditions Patients who suffer from obstructive sleep apnea (OSA) also tend to have additional gastrointestinal (GI) tract conditions, such as gastric reflux and hiatal hernia, which form at the opening in your diaphragm where your food pipe (esophagus) joins your stomach. Stress, fatigue plague patients with allergic rhinitis and obstructive sleep apnea Patients who suffer from both allergic rhinitis and obstructive sleep apnea (OSA) may experience escalated symptoms of stress and fatigue. Severe sleep apnea tied to increased risk of death Moderate to severe obstructive sleep apnea is associated with an increased risk of death from any cause in middle-aged adults, especially men, according to new results from a landmark study supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health (NIH). Obstructive sleep apnea is prevalent in adults with Down syndrome A study in the Aug. 15 issue of the Journal of Clinical Sleep Medicine shows that adults with Down syndrome also frequently suffer from obstructive sleep apnea (OSA). Study finds increased 'sibling risk' of obstructive sleep apnea in children A study in the Aug. 1 issue of the journal SLEEP indicates that children have an increased risk of developing obstructive sleep apnea (OSA) if they have at least one sibling who has been diagnosed with the sleep disorder. Benefits from upper airway surgery for sleep apnea found to equal CPAP Adults who struggle with CPAP treatment for obstructive sleep apnea (OSA) should be considered candidates for reconstructive surgery on the upper airway, because it holds the same quality-of-life (QOL) benefits but with more permanence. Biomarker of breathing control abnormality associated with hypertension and stroke A study in the July 1 issue of the journal SLEEP identified a distinct ECG-derived spectrographic phenotype, designated as narrow-band elevated low frequency coupling (e-LFCNB), that is associated with prevalent hypertension, stroke, greater severity of sleep disordered breathing and sleep fragmentation in patients suffering from obstructive sleep apnea (OSA). CPAP treatment linked to lower mortality in stroke patients with OSA Stroke patients with obstructive sleep apnea (OSA) who undergo treatment with continuous positive airway pressure (CPAP) following their stroke may substantially reduce their risk of death. More Obstructive Sleep Apnea Current Events and Obstructive Sleep Apnea News Articles |
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