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CPAP Breathing Machine

CPAP is a small machine that you use at home every night while you sleep. It increases air pressure in your throat to keep your airway open. When you have sleep apnea, a CPAP can help you sleep better, feel better and avoid future health problems. CPAP stands for "continuous positive airway pressure."

The CPAP machine will have one of the following:

How is continuous positive airway pressure (CPAP) used to treat sleep apnea?

Continuous positive airway pressure (CPAP) is nearly always the first medical treatment for sleep apnea. CPAP is a machine that prevents your airways from closing during sleep.

CPAP can:

  • Decrease daytime sleepiness. If you still feel sleepy during the day while using CPAP at night, tell your doctor.
  • Lower daytime and nighttime blood pressure.

It may take time for you to be comfortable using CPAP. You may find that you want to take off the mask, or you may find it hard to sleep. If you can't get used to CPAP, talk to your doctor. You might be able to try another type of mask or make other adjustments.

Some CPAP devices automatically adjust air pressure or use different air pressures when you breathe in or out. They are easier and more comfortable for some people to use.

Sometimes medicine that helps you stay awake during the day may be used along with CPAP.

If you use CPAP, or another machine to help you breathe, you need to use it every night and while you nap. If you don't use it, your symptoms will return right away.

Why is CPAP used for sleep apnea?

CPAP is usually the best treatment for obstructive sleep apnea. It is the first treatment choice and the most widely used. CPAP:

  • Helps you have more normal sleep, so you feel less sleepy and more alert during the daytime.
  • May help keep heart failure or other heart problems from getting worse.
  • May help lower your blood pressure.

If you have a bed partner, they may also sleep better when you use a CPAP. That's because you aren't snoring or restless.

Your doctor may suggest CPAP if you have:

  • Moderate to severe sleep apnea.
  • Sleep apnea and coronary artery disease (CAD).
  • Sleep apnea and heart failure.
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