News tagged with sleep apnea

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

created Dec 27, 2010 | popularity 4.4 / 5 (9) | comments 9

8 hours -- or else

Americans are sleeping less than ever, according to a new National Sleep Foundation poll. Some people are losing sleep because of the economy. Some are staying up too late and getting up too early. Some have disorders such ...

Medicine & Health / Health

created Mar 27, 2009 | popularity 4.3 / 5 (8) | comments 2

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 ...

Medicine & Health / Diseases, Conditions, Syndromes

created Aug 01, 2009 | popularity 4.5 / 5 (4) | comments 1

Sleep apnea thickens blood vessels, increases heart disease risk

Obstructive sleep apnea, or periodic interruptions in breathing throughout the night, thickens sufferers' blood vessels. Moreover, it increases the risk of several forms of heart and vascular disease.

Biology / Cell & Microbiology

created May 04, 2009 | popularity 5 / 5 (3) | comments 0

Sleep apnea occurring during REM sleep is significantly associated with type 2 diabetes

A multi-ethnic study in Journal of Clinical Sleep Medicine reports that there is a statistically significant relationship between obstructive sleep apnea (OSA) episodes occurring during rapid eye movement (REM) sleep and ty ...

Medicine & Health / Health

created Jun 15, 2009 | popularity 5 / 5 (3) | comments 0

Arousal frequency in heart failure found to be a unique sleep problem

A study in the Jan. 1 issue of the journal Sleep demonstrates that the frequent arousals from sleep that occur in heart failure patients with central sleep apnea (CSA) may reflect the presence of another underlying arousal ...

Medicine & Health / Diseases, Conditions, Syndromes

created Jan 01, 2009 | popularity 4 / 5 (3) | comments 0

Severe breathing disorders during sleep are associated with an increased risk of dying

Severe breathing disorders during sleep are associated with an increased risk of dying from any cause according to research published this week in the open access journal PLoS Medicine. The study finds that the increased risk o ...

Medicine & Health / Diseases, Conditions, Syndromes

created Aug 17, 2009 | popularity 4 / 5 (3) | comments 0

Sleep apnea patients using oral appliance therapy show high efficacy and compliance

According to new research that will be presented on Saturday, June 5, at the 19th Annual Meeting of the American Academy of Dental Sleep Medicine, between 31 and 53 months after beginning oral appliance therapy, the sleep ...

Medicine & Health / Sleep apnea

created Jun 05, 2010 | popularity 4 / 5 (3) | comments 0

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

created Oct 04, 2010 | popularity 5 / 5 (2) | comments 0

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.

Medicine & Health / Diseases, Conditions, Syndromes

created Oct 05, 2009 | popularity 4 / 5 (2) | comments 0

The association between sleep disturbances and reduced quality of life varies by race

A study in the April 15 issue of the Journal of Clinical Sleep Medicine shows that having a sleep disturbance is associated with clinically meaningful reductions in health-related quality of life, and the magnitude of thi ...

Medicine & Health / Health

created Apr 15, 2010 | popularity 4 / 5 (2) | comments 0

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 ...

Medicine & Health / Health

created Sep 01, 2010 | popularity 4 / 5 (2) | comments 0

Less costly, more accessible and as effective: Simplified treatment for sleep apnea

Diagnosing and treating obstructive sleep apnea may soon become much less expensive and arduous, thanks to new research showing that a simplified program using experienced nurses, home ambulatory diagnosis and auto-titrating ...

Medicine & Health / Diseases, Conditions, Syndromes

created Mar 06, 2009 | popularity 3.5 / 5 (2) | comments 0

Study is first to find that CPAP therapy restores brain tissue in adults with sleep apnea

Obstructive sleep apnea patients had reductions of grey-matter volume at baseline but showed significant grey-matter volume increase after three months of CPAP therapy, according to a research abstract that will be presented ...

Medicine & Health / Sleep apnea

created Jun 07, 2010 | popularity 3.5 / 5 (2) | comments 0

Study helps explain connection between sleep apnea, stroke and death

Obstructive sleep apnea decreases blood flow to the brain, elevates blood pressure within the brain and eventually harms the brain's ability to modulate these changes and prevent damage to itself, according to a new study ...

Medicine & Health / Medical research

created Jan 06, 2009 | popularity 5 / 5 (1) | comments 0

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.