News tagged with sleep apnea
Is that sleepiness during pregnancy normal or a sign of sleep apnea?
(Medical Xpress) -- Most pregnant women complain of being tired. Some of them however, could be suffering more than normal fatigue associated with their pregnancy; they may have developed obstructive sleep apnea (OSA), a ...
Feb 10, 2012 |
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Sleep breathing machine shows clear benefits in children with sleep apnea
Children and adolescents with obstructive sleep apnea had substantial improvements in attention, anxiety and quality of life after treatment with positive airway pressure (PAP)a nighttime therapy in which a machine ...
Feb 10, 2012 |
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Sleep apnea linked to silent strokes, small lesions in brain
People with severe sleep apnea may have an increased risk of silent strokes and small lesions in the brain, according to a small study presented at the American Stroke Association's International Stroke Conference 2012.
Medicine & Health / Cardiology
Feb 01, 2012 |
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New sleep apnea device may reduce cost, time required for diagnosis
(Medical Xpress) -- UT Arlington bioengineering researchers have designed an innovative, ultrasonic sensor system that can accurately detect whether a person suffers from sleep apnea without the inconvenience or cost associated ...
Jan 05, 2012 |
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Poor sleep linked to increased health and behavior problems in young diabetics
A new study suggests that young diabetics may be struggling to get a good night's sleep, resulting in worse control of their blood sugar, poorer school performance and misbehavior.
Jan 01, 2012 |
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Sleep disorders common among police officers
A survey of police officers indicated that about 40 percent have a sleep disorder, which was associated with an increased risk of adverse health, safety and performance outcomes, according to a study in the December 21 issue ...
Dec 20, 2011 |
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Innovative approaches help sleep apnea sufferers benefit from CPAP
People with obstructive sleep apnea are more likely to stick to prescribed treatment when a partner or parent is involved with their treatment, according to a team of sleep researchers.
Dec 01, 2011 |
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Growth hormone increases bone formation in obese women
In a new study presented today at the annual meeting of the Radiological Society of North America (RSNA), growth hormone replacement for six months was found to increase bone formation in abdominally obese women.
Nov 29, 2011 |
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Hypoglossal nerve stimulation increases airflow during sleep in obstructive sleep apnea
Hypoglossal nerve stimulation (HGNS) produced marked dose-related increases in airflow in obstructive sleep apnea (OSA) patients without arousing them from sleep, according to a new study from the Johns Hopkins Sleep Disorders ...
Nov 25, 2011 |
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Researchers identify molecular mechanism that regulates wakefulness, sleep
Researchers at Boston University School of Medicine (BUSM) have, for the first time, identified an intracellular signaling enzyme that regulates the wake-sleep cycle, which could help lead to the development of more effective ...
Medicine & Health / Neuroscience
Nov 22, 2011 |
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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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The big risk factor for stroke that you may not know you have
A cardiac condition called atrial fibrillation, the most common cardiac arrhythmia, can increase your risk of stroke by 500 percent. That's why Anne B. Curtis, MD, Charles and Mary Bauer Professor and Chair of the University ...
Sep 15, 2011 |
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Poor sleep quality increases risk of high blood pressure
Reduced slow wave sleep (SWS) is a powerful predictor for developing high blood pressure in older men, according to new research in Hypertension: Journal of the American Heart Association.
Aug 29, 2011 |
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Sleep apnea linked to increased risk of dementia in elderly women
characterized by disrupted breathing and sleep and a reduction in the intake of oxygen -- are about twice as likely to develop dementia in the next five years as those without the condition, according to a multi-center study ...
Aug 09, 2011 |
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Compression stockings may reduce OSA in some patients
Wearing compression stockings may be a simple low-tech way to improve obstructive sleep apnea in patients with chronic venous insufficiency, according to French researchers.
Aug 04, 2011 |
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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.