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Sleep Apnea & Obesity CPAP

Sleep Apnea

Sleep apnea is a debilitating condition that can become progressively worse over time. Untreated, sleep apnea can cause high blood pressure and other cardiovascular disease, memory problems, weight gain, impotency, and headaches. Moreover, untreated sleep apnea may be responsible for job impairment and motor vehicle crashes. Apnea, first clinically described in 1965, has not been on the radar screens of doctors or the public for very long. Doctors have been slow in identifying it in patients. The public has little awareness. Significantly, overweight and obese people are very prone to this condition. In this section you can learn about what apnea is and what can be done about it.


NINDS Sleep Apnea Information Page

Reviewed  07-01-2001  

What is Sleep Apnea?
Sleep apnea is a common disorder in which breathing stops during sleep for 10 seconds or more, sometimes more than 300 times a night. The hallmark of the disorder is excessive daytime sleepiness and compromised quality of life, including significant social and emotional problems. There are two main types of sleep apnea. "Obstructive sleep apnea" may represent cessation of breathing due to mechanical blockage of the airway; "central sleep apnea" appears to be related to a malfunction of the brain’s normal signal to breathe. Symptoms of sleep apnea may include restless sleep, loud, heavy snoring (often interrupted by silence and then gasps), falling asleep while driving and/or during the day (at work, watching TV, etc.), morning headaches, loss of energy, trouble concentrating, irritability, forgetfulness, mood or behavior changes, anxiety or depression, obesity, and decreased interest in sex. Not all people with sleep apnea experience all of these symptoms and not everyone who has these symptoms has sleep apnea. However, it is recommended that people who are experiencing even a few of these symptoms visit their physician for evaluation. Prompt and proper diagnosis of sleep apnea is an important first step to treating the disorder. Problems associated with untreated sleep apnea include hypertension, coronary artery disease, myocardial infarction, stroke, psychiatric problems, impotence, cognitive dysfunction, memory loss, and death.

Is there any treatment?
For mild cases of obstructive sleep apnea, treatment often consists of using methods to avoid sleeping on one’s back. For people with significant nasal congestion, a decongestant therapy may be prescribed. Patients with obstructive and central apnea should avoid central nervous system depressants such as alcoholic beverages, sedatives and narcotics. Weight loss and diet control are encouraged for overweight patients. Many serious cases of obstructive sleep apnea can be relieved by a treatment called nasal continuous positive airway pressure (nasal CPAP). Nasal CPAP uses a mask-like device and pump that work together to keep the airway open with air pressure during each inspiration. Surgery may benefit some patients by eliminating or reducing the narrowing of the airway due to anatomical defects.

What is the prognosis?
Eliminating the obstruction usually reverses the commonly associated pulmonary and systemic hypertension and cardiac problems of obstructive apnea. Untreated, sleep apnea can greatly affect daytime functioning. Sleep apnea sufferers have a tendency to fall asleep during the day, a potentially deadly consequence of the disorder.

What research is being done?
Sleep apnea is currently one of the most active areas of sleep research. NINDS has notified investigators that it is seeking grant applications in both clinical and basic sleep and wakefulness research, including neurological causes and consequences of sleep apnea. Research on sleep apnea is also funded by the National Heart, Lung, and Blood Institute and the National Institute on Aging.

Here is a list of all studies currently seeking patients.

 Organizations

American Sleep Apnea Association
1424 K Street, NW
Suite 302
Washington, DC 20005
asaa@sleepapnea.org
http://www.sleepapnea.org/
Tel: 202-293-3650
Fax: 202-293-3656

National Sleep Foundation
1522 K Street NW
Suite 500
Washington, DC 20005
nsf@sleepfoundation.org
http://www.sleepfoundation.org/
Tel: 202-347-3471 (no public calls please)
Fax: 202-347-3472

National Heart, Lung, and Blood Institute (NHBLI)
National Institutes of Health, DHHS
31 Center Drive, Rm. 4A21 MSC 2480
Bethesda, MD 20892-2480
http://www.nhlbi.nih.gov/
Tel: 301-592-8573/240-629-3255 (TTY) Recorded Info: 800-575-WELL (-9355)

National Institute on Aging (NIA)
National Institutes of Health, DHHS
31 Center Drive, Rm. 5C27 MSC 2292
Bethesda, MD 20892-2292
http://www.nia.nih.gov/
Tel: 301-496-1752 800-222-2225 TTY: 800-222-4225

Related NINDS Publications and Information

Brain Basics: Understanding Sleep
Fact sheet on normal sleep and sleep disorders developed by the National Institute of Neurological Disorders and Stroke (NINDS).


NINDS health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the National Institute of Neurological Disorders and Stroke or any other Federal agency. Advice on the treatment or care of an individual patient should be obtained through consultation with a physician who has examined that patient or is familiar with that patient’s medical history.

All NINDS-prepared information is in the public domain and may be freely copied. Credit to the NINDS or the NIH is appreciated.


Provided by:
The National Institute of Neurological Disorders and Stroke
National Institutes of Health
Bethesda, MD 20892

http://www.ninds.nih.gov/disorders/sleep_apnea/sleep_apnea.htm

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