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Sleep surgery, or sleep apnea surgery is a surgery performed to treat sleep disordered breathing. Sleep disordered breathing is a spectrum of disorders that includes snoring, upper airway resistance syndrome, and obstructive sleep apnea. These surgeries are performed by surgeons trained in otolaryngology, oral maxillofacial surgery, or craniofacial surgery. == Definitions == Obstructive sleep apnea or sleep apnea is defined as either cessation of breathing (apnea) for 10 seconds, or a decrease in normal breathing (hypopnea) with an associated desaturation in oxygen and arousal during sleep that lasts at least 10 seconds. In adults, it is typical to have up to 4.9 events per hour. In obstructive sleep apnea, affected individuals are categorized based on how many apneas or hypopneas (apnea-hypopnea index or AHI) or events they have per hour. * Normal: <5 events per hour * Mild: 5 to <15 events per hour * Moderate: 15 to 30 events per hour * Severe: >30 events per hour The Wisconsin Sleep Cohort Study, a longitudinal study of the natural history of obstructive sleep apnea (OSA), found that of a random sample (602 employed men and women, 30–60 years old) the prevalence of OSA (5 or more events/hr) was 9% for women and 24% for men. However, the study found that among sleepy patients in this group, 2% of women and 4% of men met criteria for obstructive sleep apnea syndrome (OSAS). Those who snored habitually, were more likely to have an AHI of 15 or more.〔Young T, Palta M, Dempsey J, Skatrud J, Weber S, Badr S. The occurrence of sleep-disordered breathing among middle-aged adults. The New England journal of medicine. Apr 29 1993;328(17):1230-1235.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sleep surgery」の詳細全文を読む スポンサード リンク
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