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Frequently Asked Questions: About Sleep Apnea

Here are some frequently asked questions about sleep apnea referenced from the American Academy of Sleep  Medicine.

Sleep Apnea - Overview & Facts

Obstructive sleep apnea is a common and serious sleep disorder that causes you to stop breathing during sleep. The airway repeatedly becomes blocked, limiting the amount of air that reaches your lungs. When this happens, you may snore loudly or making choking noises as you try to breathe. Your brain and body becomes oxygen deprived and you may wake up. This may happen a few times a night, or in more severe cases, several hundred times a night.

In many cases, an apnea, or temporary pause in breathing, is caused by the tissue in the back of the throat collapsing. The muscles of the upper airway relax when you fall asleep. If you sleep on your back, gravity can cause the tongue to fall back. This narrows the airway, which reduces the amount of air that can reach your lungs. The narrowed airway causes snoring by making the tissue in back of the throat vibrate as you breathe.

Sleep apnea can make you wake up in the morning feeling tired or unrefreshed even though you have had a full night of sleep. During the day, you may feel fatigued, have difficulty concentrating or you may even unintentionally fall asleep. This is because your body is waking up numerous times throughout the night, even though you might not be conscious of each awakening.

The lack of oxygen your body receives can have negative long-term consequences for your health. This includes:
•   High blood pressure     
•   Heart disease 
•   Stroke 
•   Pre-diabetes and diabetes 
•   Depression 
   
There are many people with sleep apnea who have not been diagnosed or received treatment. A sleep medicine physician can diagnose obstructive sleep apnea using an in-lab sleep study or a home sleep test.

Sleep Apnea - Symptoms & Risk Factors

Symptoms

The symptom most commonly associated with sleep apnea is snoring. Not everyone who snores has sleep apnea. If snoring is paired with choking or gasping sounds, it is likely to be sleep apnea. Daytime fatigue is another common symptom.

The symptoms of sleep apnea include:
•   Loud or frequent snoring 
•   Choking or gasping while you sleep 
•   Pauses in breathing 
•   Morning headaches 
•   Excessive daytime sleepiness 
•   Insomnia due to difficulty staying asleep 
•   Waking up with dry mouth or a sore throat 
•   Frequent need to urinate during the night 
•   Trouble concentrating 
•   Memory or learning problems 
•   Moodiness, irritability or depression 

Risk Factors 
 A common misconception is that sleep apnea only affects older, overweight men. This widely-held assumption is wrong: anyone can have sleep apnea, regardless of gender, age or body type. If you have any of the following traits you may be at increased risk: 

•   Excess weight – An adult with a BMI of 25 or higher is considered to be overweight. Your risk of sleep apnea increases with
    the amount of excess body weight.
•   Large neck size (>17 inches for men, > 16 inches for women) – A large neck will have more fatty tissue that can block your
    airway. 
•   Older age (40+ for men, 50+ for women) – Sleep apnea occurs more often in older adults, especially people older than 60.
•   Being male – Men have twice the risk having sleep apnea compared to women 
•   Smoker – Smokers have a higher risk of sleep apnea 
•   Hypertensive – High blood pressure is very common in people with sleep apnea 
•   Family history – Sleep apnea can appear more often among family members. This may be a result of either inherited traits or 
    common lifestyles.  

Sleep Apnea – Diagnosis

Physician’s Visit
A board certified sleep medicine physician can diagnose obstructive sleep apnea using an in-lab sleep study or a home sleep test. A board-certified sleep physician has training and expertise in diagnosing and treating sleep apnea. 

Testing
In-lab overnight sleep study

This type of sleep study requires you to stay overnight at a sleep center, in a bed that may resemble a hotel room, or in some cases is an actual hotel room. You will sleep with sensors hooked up to various parts of your body. These record your brain waves, heartbeat, and breathing among other things. Physicians usually recommend this test for more complicated or difficult to diagnose cases, as it is more expensive and requires you to stay overnight.       

Home sleep test 
Some patients with high risk factors for obstructive sleep apnea and no other medical disorders may be appropriate for a home sleep test. This type of sleep study lets you sleep in the comfort of your own home while a machine collects information. The testing equipment differs in that it is less complicated than what is used in an overnight sleep study.

Sleep Apnea – Treatment

Sleep apnea is a serious sleep disorder that needs to be treated. A board certified sleep physician can help you select a treatment plan that is right for you.  

CPAP (Continuous Positive Airway Pressure) 

CPAP is a machine that uses a steady stream of air to gently keep your airway open throughout the night so you are able to breathe. You sleep with a mask with a hose that is attached to a machine kept at the bedside. Masks and machines may vary depending on your treatment and comfort needs. CPAP is the frontline treatment for obstructive sleep apnea and is recommended for all cases.  

Source: http://www.sleepeducation.com/essentials-in-sleep/...