Symptoms:

It is important to emphasize that, often, the person who has obstructive sleep apnea does not remember the episodes of apnea during the night. The main symptoms are usually associated with excessive daytime sleepiness due to poor sleep during the night. Often, family members, especially spouses, witness the periods of no breathing.

A person with obstructive sleep apnea usually snores heavily soon after falling asleep. The snoring continues at a regular pace for a period of time, often becoming louder, but is then interrupted by a long silent period during which there is no breathing. This is followed by a loud snort and gasp, and the snoring returns. This pattern repeats frequently throughout the night.

Symptoms that may be observed include:

• Abnormal daytime sleepiness, including falling asleep at inappropriate times
• Awakening unrefreshed in the morning
• Depression (possibly)
• Episodes of no breathing (apnea)
• Lethargy
• Loud snoring
• Memory difficulties
• Morning headaches
• Personality changes
• Poor concentration
• Restless sleep

Additional symptoms that may be associated with this disease:

• Hyperactive behavior, especially in children
• Leg swelling (if severe)

Signs and tests:

The health care provider will perform a physical exam. This will involve carefully checking your mouth, neck, and throat. You will be asked about your medical history. Often, a survey that asks a series of questions about daytime sleepiness, sleep quality, and bedtime habits is given.

A sleep study (polysomnogram) is used to confirm obstructive sleep apnea.

Other tests that may be performed include:

• Arterial blood gases
• Electrocardiogram (ECG)
• Echocardiogram
• Thyroid function studies