What Is Sleep Apnea?
(National Heart, Lung, and Blood Institute)

 Sleep apnea (AP-ne-ah) is a common disorder in which you have one or more pauses in breathing or shallow breaths while you sleep. Breathing pauses can last from a few seconds to minutes. They often occur 5 to 30 times or more an hour. Typically, normal breathing then starts again, sometimes with a loud snort or choking sound. Sleep apnea usually is a chronic (ongoing) condition that disrupts your sleep. You often move out of deep sleep and into light sleep when your breathing pauses or becomes shallow. This results in poor sleep quality that makes you tired during the day. Sleep apnea is one of the leading causes of excessive daytime sleepiness.

Overview

Sleep apnea often goes undiagnosed. Doctors usually can't detect the condition during routine office visits. Also, there are no blood tests for the condition. Most people who have sleep apnea don't know they have it because it only occurs during sleep. A family member and/or bed partner may first notice the signs of sleep apnea. The most common type of sleep apnea is obstructive sleep apnea. This most often means that the airway has collapsed or is blocked during sleep. The blockage may cause shallow breathing or breathing pauses. When you try to breathe, any air that squeezes past the blockage can cause loud snoring. Obstructive sleep apnea is more common in people who are overweight, but it can affect anyone. For example, small children may have enlarged tonsil tissues in their throats, which can lead to obstructive sleep apnea.

Outlook

Untreated sleep apnea can:

• Increase the risk of high blood pressure, heart attack, stroke, obesity, and diabetes

• Increase the risk of, or worsen, heart failure

• Make arrhythmias (ah-RITH-me-ahs), or irregular heartbeats, more likely

• Increase the chance of having work-related or driving accidents

Sleep apnea is a chronic condition that requires long-term management. Lifestyle changes, mouthpieces, surgery, and/or breathing devices can successfully treat sleep apnea in many people.

Breathing Devices

CPAP (continuous positive airway pressure) is the most common treatment for moderate to severe sleep apnea in adults. A CPAP machine uses a mask that fits over your mouth and nose, or just over your nose. The machine gently blows air into your throat. The air presses on the wall of your airway. The air pressure is adjusted so that it's just enough to stop the airways from becoming narrowed or blocked during sleep. Treating sleep apnea may help you stop snoring. But not snoring doesn't mean that you no longer have sleep apnea or can stop using CPAP. Sleep apnea will return if CPAP is stopped or not used correctly. Usually, a technician will come to your home to bring the CPAP equipment. The technician will set up the CPAP machine and adjust it based on your doctor's prescription. After the initial setup, you may need to have the CPAP adjusted on occasion for the best results. CPAP treatment may cause side effects in some people. These side effects include a dry or stuffy nose, irritated skin on your face, dry mouth, and headaches. If your CPAP isn't adjusted properly, you may get stomach bloating and discomfort while wearing the mask.