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![]() Medical Conditions - Health Conditions
Sleep ApneaTopic OverviewWhat is sleep apnea? Sleep apnea means that your breathing often is blocked or partly blocked during sleep. The problem can be mild to severe, based on how often your lungs don't get enough air. This may happen from 5 to more than 50 times an hour. This topic focuses on obstructive sleep apnea, which is the most common type. A less common type of apnea, called central sleep apnea, can occur in people who have had a stroke, have heart failure, or have a brain tumor or infection. Even though this topic isn't about central sleep apnea, some of the treatments discussed here may also help treat it. Talk with your doctor to find out more about central sleep apnea. What causes obstructive sleep apnea? Blocked or narrowed airways in your nose, mouth, or throat can cause sleep apnea. Your airway can become blocked when your throat muscles and tongue relax during sleep. Sleep apnea can also occur if you have large tonsils or adenoids or a large uvula . During the day, when you are awake and standing up, these may not cause problems. But when you lie down at night, they can press down on your airway, narrowing it and causing sleep apnea. Sleep apnea can also occur if you have a problem with your jawbone. In children, the main cause of sleep apnea is large tonsils or adenoids . Sleep apnea is more likely to occur if you are overweight, use certain medicines or alcohol before bed, or sleep on your back. See pictures of normal and blocked airways during sleep. What are the symptoms? The main symptoms of sleep apnea that you may notice are:
Your bed partner may notice that while you sleep:
Children who have sleep apnea:
But children may not seem very sleepy during the day (a key symptom in adults). The only symptom of sleep apnea in some children may be that they do not grow as quickly as most children their age. Should you worry about sleep apnea? If you have sleep apnea, you may not be sleeping as well as you could. And you may be more likely to end up with serious problems such as:
How is sleep apnea diagnosed? Your doctor will probably examine you and ask about your past health. He or she may also ask you or your sleeping partner about your snoring and sleep behavior and how tired you feel during the day. Your doctor may suggest a sleep study . A sleep study usually takes place at a sleep center, where you will spend the night. Sleep studies find out how often you stop breathing or have too little air flowing into your lungs during sleep. They also find out how much oxygen you have in your blood during sleep. You may have blood tests and X-rays. How is it treated? You may be able to treat mild sleep apnea by making changes in how you live and the way you sleep. For example:
If lifestyle changes do not help sleep apnea, you may be able to use an oral breathing device. These devices help keep your airway open while you sleep. If you have moderate to severe sleep apnea, you may be able to use a machine that helps you breathe while you sleep. This treatment is called continuous positive airway pressure , or CPAP (say “SEE-pap”). Sometimes medicine that helps you stay awake during the day may be used along with CPAP. If your tonsils, adenoids, uvula, or other tissues are blocking your airway, your doctor may suggest surgery to open your airway. Frequently asked questions
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| Decision Points focus on key medical care decisions that are important to many health problems. |
| Sleep apnea: Should I have a sleep study? | |
| Sleep apnea: Should I have surgery? | |
A blockage or narrowing of the airways in your nose, mouth, or throat generally causes obstructive sleep apnea (OSA). This usually occurs when the throat muscles and tongue relax during sleep and partially or completely block the airway. When you stop breathing or have reduced flow of air into your lungs during sleep, the amount of oxygen in your blood decreases briefly.
Obstructive sleep apnea can also occur if you have bone deformities or enlarged tissues in your nose, mouth, or throat. For example, you may have enlarged tonsils . During the day when you are awake and standing up, this may not cause problems. But when you lie down at night, the tonsils can press down on your airway, narrowing it and causing sleep apnea.
See pictures of normal and blocked airways during sleep.
Other factors that may contribute to sleep apnea include:
In children, the main cause of sleep apnea is large tonsils or adenoids .
The most common symptoms of obstructive sleep apnea (OSA) that you may notice include:
Symptoms of sleep apnea that others may notice include:
In children, symptoms of sleep apnea depend on how old the child is:
Children who have sleep apnea nearly always snore. But they may not appear to be excessively sleepy during the day (a key symptom in adults). The only symptom of sleep apnea in some children may be that they do not grow as quickly as they should for their age.
Although rare, in children sleep apnea can cause developmental delays and can cause failure of the right side of the heart ( cor pulmonale ).
Other conditions with symptoms similar to sleep apnea include an underactive thyroid ( hypothyroidism ) and other sleep disorders, such as suddenly falling asleep ( narcolepsy ) or an intense urge to move the legs ( restless legs syndrome ).
Obstructive sleep apnea (OSA) causes your airway to narrow or close off, reducing or stopping breathing for short periods during sleep. If your breathing stops, you may make grunting, gasping, or snorting sounds and restless body movements. As breathing resumes, loud snoring starts. This may happen many times during a night.
How often your breathing is interrupted while you sleep determines the severity of sleep apnea.
When you stop breathing, the oxygen levels in your blood go down and carbon dioxide levels go up. This makes your heart and blood vessels work harder and can affect your heart rate and nervous system . This in turn may lead to other problems including high blood pressure (hypertension) and coronary artery disease (CAD) . Sleep apnea can also make these diseases worse and more difficult to treat. Sleep apnea also raises your risk of having a stroke. 3
Because sleep apnea disturbs your sleep, it can make you very tired during the day. If you have sleep apnea, you may:
Certain factors make it more or less likely that you will have obstructive sleep apnea (OSA). Some of these you cannot change, while others you can.
Factors that you cannot change and that may make it more likely you will have sleep apnea include:
Factors that you may be able to change that will reduce your chances of having sleep apnea include:
Call your doctor if:
Watchful waiting is a wait-and-see approach. If you get better on your own, you will not need treatment. If you get worse, you and your doctor will decide what to do next. Watchful waiting may be right for you if you snore but are not excessively sleepy during the day.
Watchful waiting may not be right if you notice that your sleeping partner snores loudly and heavily, is restless during sleep, and is sleepy during the day. If you think your sleeping partner may have periods when breathing stops, suggest that he or she talk with a doctor.
Health professionals who can check people who have symptoms of obstructive sleep apnea (OSA) include:
If your doctor thinks that you may have sleep apnea, he or she may have you see a specialist who treats sleep disorders. The specialist can help arrange and interpret a sleep study and prescribe treatment for the disease, such as continuous positive airway pressure (CPAP) .
Other health professionals may be able to help you if you have other problems that are caused by sleep apnea. If you:
To prepare for your appointment, see the topic Making the Most of Your Appointment.
Your doctor will examine you and ask you and possibly your sleeping partner questions about your lifestyle, snoring, sleep behavior, and how tired you feel during the day (this is called a medical history). Your doctor may ask you to complete a questionnaire, such as the Epworth Sleepiness Scale. The answers to questions in this questionnaire can help the doctor find out if you have sleep apnea. If your doctor thinks that you may have obstructive sleep apnea (OSA), he or she may suggest sleep studies or other tests.
Other tests that you may have include:
If your sleep apnea has not improved after initial treatment, and if enlarged tissues in your mouth and throat are causing it, your doctor may do one or more tests before suggesting surgery to remove the excess tissue. These tests may include:
To diagnose sleep apnea in children, doctors follow similar steps. According to the American Academy of Pediatrics: 4
You may need sleep tests after your treatment begins, to see how well it is working.
Treatment for obstructive sleep apnea (OSA) includes lifestyle changes, continuous positive airway pressure (CPAP) (to prevent the airway from closing during sleep), the use of dental devices (oral breathing devices) to help keep your airway open, medicine to help you stay awake during the day, and surgery. The goals of treatment are to relieve symptoms such as snoring and excessive daytime sleepiness and prevent other problems, such as high blood pressure . Your doctor will base your treatment on how severe your sleep apnea is.
In general, your doctor will have you try lifestyle changes and CPAP first. Surgery might be a first choice only if the sleep apnea is caused by a blockage that is easily fixed.
You may need to be treated for other health problems before you are treated for sleep apnea. For example, people who also have inflammation of the nasal passages ( rhinitis ) may need to use nose spray to reduce the inflammation. People who have an underactive thyroid gland ( hypothyroidism ) need to take thyroid medicine.
Children have the same treatment options as adults. But surgery (tonsillectomy and adenoidectomy) typically is the first choice because enlarged tonsils or adenoids cause most cases of sleep apnea in children. If surgery is not possible or does not work, children are treated using CPAP.
The first treatment for obstructive sleep apnea (OSA) consists of making lifestyle changes. Your sleep apnea may be helped if you:
All people who have sleep apnea should make these lifestyle changes. They may be all that is needed to relieve mild sleep apnea.
Some people use nasal strips, which widen the nostrils and improve airflow. Although these strips may decrease snoring, they cannot treat sleep apnea.
Continuous positive airway pressure (CPAP) is nearly always the first medical treatment for sleep apnea.
Other medical treatment includes oral breathing devices. These devices reposition your tongue and jaw during sleep, which opens up your airways.
Surgery might be the first treatment only when a blockage can be fixed easily, such as when you have overly large tonsils.
Ongoing treatment for obstructive sleep apnea (OSA) includes using continuous positive airway pressure (CPAP) or an oral breathing device and making changes in your lifestyle. Lifestyle changes include losing weight (if needed), improving sleep habits (such as sleeping on your side and waking up at the same time every morning), avoiding the use of alcohol and certain medicines (especially sleeping pills and sedatives ) before bed, and stopping smoking. Sometimes medicine to help you stay awake during the day is used along with CPAP.
If CPAP is not working, you may need another sleep study to find out whether your CPAP machine needs to be adjusted. You may also need to think about surgery. Surgical choices include:
If your obstructive sleep apnea (OSA) gets worse, talk to your doctor. You may need another complete sleep study, and you may need to adjust your continuous positive airway pressure (CPAP) machine. You may be able to take medicine to help you stay awake during the day. You may also need treatment for problems that sleep apnea may cause, such as high blood pressure .
In some cases, you may need surgery. Surgical options include:
Research shows that continuous positive airway pressure (CPAP) decreases daytime sleepiness, especially in people who have moderate to severe sleep apnea. 8, 5 But CPAP may not work as well for people who have mild sleep apnea. 5
CPAP can lower daytime and nighttime blood pressure. 9
If you use CPAP to treat sleep apnea, you need to use it every night. If you do not use it, your symptoms will return right away.
Treatment of obstructive sleep apnea in people with coronary artery disease lowers the risk of some heart problems. 10
You can help prevent obstructive sleep apnea (OSA) and snoring if you:
You can treat obstructive sleep apnea (OSA) at home if you have mild sleep apnea (5 or fewer apnea episodes an hour). Home treatment for sleep apnea includes:
If you are using a continuous positive airway pressure (CPAP) machine to help you breathe, use it every night. If you don't use it all night, every night, your symptoms will return right away.
Doctors typically do not suggest medicines for the treatment of obstructive sleep apnea (OSA). But medicine can help reduce daytime sleepiness when continuous positive airway pressure (CPAP) is reducing apneas—the number of times you stop breathing at night—but daytime sleepiness continues. 11, 12
The U.S. Food and Drug Administration (FDA) has approved wakefulness-promoting medicines for people who are using CPAP but still have excessive daytime sleepiness:
People with sleep apnea who take wakefulness-promoting medicines should continue using CPAP to treat sleep apnea.
Surgery for obstructive sleep apnea (OSA) is usually not done unless other treatments have failed or you are unable or choose not to use other treatments.
Tonsillectomy and/or adenoidectomy usually is the first choice for children, because enlarged tonsils or adenoids cause most cases of sleep apnea in children. Other types of surgery may be needed to correct birth defects that can cause sleep apnea symptoms.
If you are thinking about having surgery to treat sleep apnea, talk with your doctor about having a sleep study done first. Experts typically suggest that you try continuous positive airway pressure (CPAP) before considering surgery. CPAP is a machine that increases air pressure in the throat and prevents tissues in the airway from collapsing when you breathe in.
In adults, uvulopalatopharyngoplasty (UPPP) is the most common surgery used to treat sleep apnea.
Tracheostomy is used only when all other treatments for severe sleep apnea have failed or when you cannot tolerate other treatments.
A rarely used option is repositioning facial bones (maxillofacial reconstruction) if CPAP or UPPP do not work. This surgery is designed to increase the size of the bones around the tongue and to create pull (traction) on the base of the tongue, which enlarges the airway. You will usually need more than one surgery.
Laser-assisted uvulopalatoplasty uses a laser to perform surgery. It is sometimes used to treat mild to moderate sleep apnea, although not all people benefit. This surgery is not approved by the American Academy of Sleep Medicine to treat sleep apnea. 14
Other treatment choices for obstructive sleep apnea (OSA) include:
Research shows that continuous positive airway pressure (CPAP) decreases daytime sleepiness, especially in people who have moderate to severe sleep apnea. 8, 5 But CPAP may not work as well for people who have mild sleep apnea. 5
If you use CPAP to treat sleep apnea, you need to use it every night. If you do not use it, your symptoms will return right away.
It may take time for you to be at ease when you use CPAP. You may find that you want to take off the mask, or you may find it difficult to sleep while using it. If you cannot get used to it, talk to your doctor. You might be able to try another type of mask or make other adjustments.
Nasal strips to decrease snoring are available in most pharmacies. Nasal strips widen the nostrils and improve airflow. Although these strips may decrease snoring, they cannot treat sleep apnea.
If you are overweight and have sleep apnea, think about getting nutritional counseling to help you lose weight.
| National Institute of Neurological Disorders and Stroke | |
| P.O. Box 5801 | |
| Bethesda, MD 20824 | |
| Phone: | 1-800-352-9424 (301) 496-5751 |
| TDD: | (301) 468-5981 |
| Web Address: | www.ninds.nih.gov |
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The National Institute of Neurological Disorders and Stroke (NINDS), a part of the National Institutes of Health, is the leading U.S. federal government agency supporting research on brain and nervous system disorders. It provides the public with educational materials and information about these disorders. |
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| American Sleep Apnea Association (ASAA) | |
| 1424 K Street NW | |
| Suite 302 | |
| Washington, DC 20005 | |
| Phone: | (202) 293-3650 |
| Fax: | (202) 293-3656 |
| E-mail: | asaa@sleepapnea.org |
| Web Address: | www.sleepapnea.org |
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The American Sleep Apnea Association provides education and support for people who have sleep apnea. |
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| National Heart, Lung, and Blood Institute (NHLBI) | |
| P.O. Box 30105 | |
| Bethesda, MD 20824-0105 | |
| Phone: | (301) 592-8573 |
| Fax: | (240) 629-3246 |
| TDD: | (240) 629-3255 |
| E-mail: | nhlbiinfo@nhlbi.nih.gov |
| Web Address: | www.nhlbi.nih.gov |
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The U.S. National Heart, Lung, and Blood Institute (NHLBI) information center offers information and publications about preventing and treating:
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| National Sleep Foundation | |
| 1522 K Street NW | |
| Suite 500 | |
| Washington, DC 20005 | |
| Phone: | (202) 347-3471 |
| Fax: | (202) 347-3472 |
| E-mail: | nsf@sleepfoundation.org |
| Web Address: | www.sleepfoundation.org |
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The National Sleep Foundation, an independent nonprofit organization, can provide you with brochures on sleep disorders and a list of accredited sleep disorder clinics. |
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Citations
- Malhotra A, White DP (2002). Obstructive sleep apnea. Lancet, 360(9328): 237–245.
- Guilleminault C, Abad VC (2004). Obstructive sleep apnea syndromes. Medical Clinics of North America, 88(3): 611–630.
- Arzt M, et al. (2005). Association of sleep-disordered breathing and the occurrence of stroke. American Journal of Respiratory and Clinical Care Medicine, 172(11): 1447–1451.
- American Academy of Pediatrics (2002). Clinical practice guideline: Diagnosis and management of childhood obstructive sleep apnea. Pediatrics, 109(4): 704–712.
- Hensley M, Ray C (2006). Sleep apnea. Clinical Evidence (15): 1–18.
- Silverberg DS, et al. (2002). Treating obstructive sleep apnea improves essential hypertension and quality of life. American Family Physician, 65(2): 229–236.
- Buchwald H, et al. (2004). Bariatric surgery: A systematic review and meta-analysis. JAMA, 292(14): 1724–1737.
- Giles TL, et al. (2006). Continuous positive airways pressure for obstructive sleep apnoea in adults. Cochrane Database of Systematic Reviews (3).
- Norman D, et al. (2006). Effects of continuous positive airway pressure versus supplemental oxygen on 24-hour ambulatory blood pressure. Hypertension, 47(5): 840–845.
- Milleron O, et al. (2004). Benefits of obstructive sleep apnoea treatment in coronary artery disease: A long-term follow-up study. European Heart Journal, 25(9): 728–734.
- Schwartz JRL, et al. (2003). Modafinil as adjunct therapy for daytime sleepiness in obstructive sleep apnea: A 12-week, open-label study. Chest, 124(6): 2192–2199.
- Hirshkowitz M, et al. (2007). Adjunct armodafinil improves wakefulness and memory in obstructive sleep apnea/hypopnea syndrome. Respiratory Medicine, 101(3): 616–627.
- Sundaram S, et al. (2005). Surgery for obstructive sleep apnoea in adults. Cochrane Database of Systematic Reviews (4).
- Littner M, et al. (2001). Practice parameters for the use of laser-assisted uvulopalatoplasty: An update for 2000. Sleep, 24(5): 603–619.
Other Works Consulted
- Caples SM, et al. (2005). Obstructive sleep apnea. Annals of Internal Medicine, 142(3): 187–197.
- Collop NA, et al. (2007). Clinical guidelines for the use of unattended portable monitors in the diagnosis of obstructive sleep apnea in adult patients. Journal of Clinical Sleep Medicine, 3(7): 737–747.
- Kushida CA, et al. (2006). Practice parameters for the indications for polysomnography and related procedures: An update for 2005. Sleep, 28(4): 499–521.
- Kushida CA, et al. (2006). Practice parameters for the treatment of snoring and obstructive sleep apnea with oral appliances: An update for 2005. Sleep, 29(2): 240–243.
- Kushida CA, et al. (2006). Practice parameters for the use of continuous and bilevel positive airway pressure devices to treat adult patients with sleep-related breathing disorders. Sleep, 29(3): 375–380.
- Morgenthaler TI, et al. (2006). Practice parameters for the medical therapy of obstructive sleep apnea. Sleep, 29(8): 1031–1035.
| Author | Maria Essig |
| Editor | Susan Van Houten, RN, BSN, MBA |
| Associate Editor | Pat Truman, MATC |
| Primary Medical Reviewer | E. Gregory Thompson, MD - Internal Medicine |
| Specialist Medical Reviewer | Mark A. Rasmus, MD - Pulmonary, Critical Care and Sleep Medicine |
| Last Updated | July 9, 2009 |
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