News tagged with sleep apnea
Catching a breath - wirelessly: Noninvasive method to watch for SIDS, help surgery patients
University of Utah engineers who built wireless networks that see through walls now are aiming the technology at a new goal: noninvasively measuring the breathing of surgery patients, adults with sleep apnea ...
Sep 19, 2011 |
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New tool helps surgeons predict patients' risk of complications after bariatric operations
A new risk calculator can predict the risk of postoperative complications occurring for individual bariatric surgery patients, according to a study published in the March issue of the Journal of the American College of Su ...
Apr 04, 2011 |
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Risk of death is high in older adults with sleep apnea and daytime sleepiness
A study in the April 1 issue of the journal Sleep suggests that the risk of death is more than two times higher in older adults who have sleep apnea and report struggling with excessive daytime sleepiness.
Medicine & Health / Sleep apnea
Apr 01, 2011 |
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Implantable device for sleep apnea studied
For millions of Americans, trying to get a restful night’s sleep is more like a nightmare.
Medicine & Health / Sleep apnea
Mar 29, 2011 |
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ATS issues report recommending research priorities in treatment of sleep apnea
The American Thoracic Society has released a new official report recommending research priorities in incorporating ambulatory management of adults with obstructive sleep apnea (OSA) into healthcare systems. The report identifies ...
Medicine & Health / Sleep apnea
Mar 03, 2011 |
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Study shows that CPAP therapy reduces fatigue, increases energy in patients with sleep apnea
Patients with obstructive sleep apnea often report that they feel like "a new person" after beginning treatment with continuous positive airway pressure therapy. A new study in the Jan. 1 issue of the journal SLEEP provid ...
Medicine & Health / Sleep apnea
Jan 01, 2011 |
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Experiments test if implant can block sleep apnea
(AP) -- Loud snoring may do more than irritate your spouse: It can signal sleep apnea, depriving you of enough zzzz's to trigger a car crash, even a heart attack. Now scientists are beginning to test if an ...
Medicine & Health / Sleep apnea
Dec 27, 2010 |
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Belly fat puts women at risk for osteoporosis
For years, it was believed that obese women were at lower risk for developing osteoporosis, and that excess body fat actually protected against bone loss. However, a study presented today at the annual meeting of the Radiological ...
Nov 30, 2010 |
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Sleep apnea linked to cognitive difficulties and deficits in gray matter
Patients with obstructive sleep apnea (OSA) may blame their daytime difficulties on simple sleepiness, but new research suggests that their brains may be to blame. Specifically, their cognitive challenges may be caused by ...
Medicine & Health / Sleep apnea
Nov 12, 2010 |
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80.5% of hospital patients are at high risk for sleep apnea, study finds
Eighty-one percent of hospital patients are at high risk for obstructive sleep apnea, a Loyola University Health System study has found.
Medicine & Health / Sleep apnea
Nov 04, 2010 |
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Questionnaire helps to identify patients at risk for surgical complications
A simple, eight-item pre-operative questionnaire could help identify patients at risk for complications following surgery, according to a report in the October issue of Archives of Otolaryngology–Head & Neck Surgery, one of ...
Oct 18, 2010 |
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Researchers study sleep apnea and lack of oxygen
According to the National Heart, Lung and Blood Institute, the average sleep apnea sufferer stops breathing and loses oxygen between five and 30 times a night. This lack of oxygen leads to a host of complications, including ...
Medicine & Health / Sleep apnea
Oct 04, 2010 |
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Study finds an increased risk of death in men with insomnia and a short sleep duration
A study in the Sept. 1 issue of the journal Sleep found an elevated risk of death in men with a complaint of chronic insomnia and an objectively measured short sleep duration. The results suggest that public health policy ...
Sep 01, 2010 |
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Identification of a gene essential to newborn babies' first breath
How do mammals prepare themselves in utero for a radical modification to their respiration at the time of birth, when they move abruptly from an aquatic medium to air?
Medicine & Health / Neuroscience
Jul 21, 2010 |
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Obstructive sleep apnea linked with later risk of heart disease
Severe obstructive sleep apnea (OSA) raised the risk of heart failure for middle-aged and older men — and significantly raised the risk of coronary heart disease in men up to age 70, according to research reported in Circulation: Jo ...
Medicine & Health / Sleep apnea
Jul 12, 2010 |
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Sleep apnea
Sleep apnea (or sleep apnoea in British English) is a sleep disorder characterized by pauses in breathing during sleep. Each episode, called an apnea (Greek: ἄπνοια (ápnoia), from α- (a-), privative, πνέειν (pnéein), to breathe), lasts long enough so that one or more breaths are missed, and such episodes occur repeatedly throughout sleep. The standard definition of any apneic event includes a minimum 10 second interval between breaths, with either a neurological arousal (a 3-second or greater shift in EEG frequency, measured at C3, C4, O1, or O2), a blood oxygen desaturation of 3-4% or greater, or both arousal and desaturation. Sleep apnea is diagnosed with an overnight sleep test called a polysomnogram, or a "Sleep Study".
Clinically significant levels of sleep apnea are defined as five or more episodes per hour of any type of apnea (from the polysomnogram). There are three distinct forms of sleep apnea: central, obstructive, and complex (i.e., a combination of central and obstructive) constituting 0.4%, 84% and 15% of cases respectively. Breathing is interrupted by the lack of respiratory effort in central sleep apnea; in obstructive sleep apnea, breathing is interrupted by a physical block to airflow despite respiratory effort. In complex (or "mixed") sleep apnea, there is a transition from central to obstructive features during the events themselves.
Regardless of type, the individual with sleep apnea is rarely aware of having difficulty breathing, even upon awakening. Sleep apnea is recognized as a problem by others witnessing the individual during episodes or is suspected because of its effects on the body (sequelae). Symptoms may be present for years (or even decades) without identification, during which time the sufferer may become conditioned to the daytime sleepiness and fatigue associated with significant levels of sleep disturbance.
For more information about Sleep apnea, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
