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Ear anatomy
Ear anatomy


Definition:

Labyrinthitis is an ear disorder that involves irritation and swelling of the inner ear.

See also: Meniere's disease



Alternative Names:

Bacterial labyrinthitis; Serous labyrinthitis; Neuronitis - vestibular; Vestibular neuronitis; Viral neurolabyrinthitis; Vestibular neuritis



Causes, incidence, and risk factors:

The are likely many causes of labyrinthitis. It commonly occurs after an ear infection ( otitis media ) or an upper respiratory infection . It may also occur after an allergy , cholesteatoma , or taking certain drugs that are dangerous to the inner ear.

During labyrinthitis, the parts of the inner ear become irritated and inflamed. This interferes with their function, which includes the ability to keep your balance.

The following raise your risk for labyrinthitis:

  • Drinking large amounts of alcohol
  • Fatigue
  • History of allergies
  • Recent viral illness, respiratory infection, or ear infection
  • Smoking
  • Stress
  • Use of certain prescription or nonprescription drugs (especially aspirin)


Symptoms:

Signs and tests:

A complete physical and neurological exam should be done. An ear examination may not reveal any problems.

Usually, the diagnosis of layrinthitis does not require other tests. Tests will be done to rule out other causes for your symptoms. These may include:



Treatment:

Labyrinthitis usually goes away within a few weeks. However, symptoms may need treatment. Your doctor may prescribe an antibiotic to treat the infection. Medications that may reduce symptoms include the following:

  • Antihistamines
  • Corticosteroids such as prednisone when symptoms are severe
  • Medicines such as compazine to control nausea and vomiting
  • Medicines to relieve dizziness such as meclizine or scopalamine
  • Sedative-hypnotics such as Valium

To prevent worsening of symptoms during episodes of labyrinthitis, try the following:

  • Keep still and rest when symptoms occur.
  • Gradually resume activity.
  • Avoid sudden position changes.
  • Do not try to read when symptoms occur.
  • Avoid bright lights.

You may need help walking when symptoms occur. Avoid hazardous activities such as driving, operating heavy machinery, and climbing until 1 week after symptoms have disappeared.



Support Groups:



Expectations (prognosis):

If you have severe vomiting, you may be admitted to the hospital.

Severe symptoms usually go away within a week. Most patients are completely better within 2 to 3 months. Continued dizziness is more likely to last in older patients.

Hearing usually returns to normal.



Complications:
  • Injury to self or others during attacks of vertigo
  • Permanent hearing loss (rare)
  • Spread of inflammation to other ear areas or to the brain (rare)


Calling your health care provider:

Call your health care provider if dizziness, vertigo, loss of balance, or other symptoms of labyrinthitis are present. Also call if hearing loss occurs.

Urgent or emergency symptoms include double vision, weakness or paralysis, slurring of speech, convulsions , fainting, persistent vomiting, or vertigo accompanied by fever of more than 101 degrees Fahrenheit.



Prevention:

Prompt treatment of respiratory infections and ear infections may help prevent labyrinthitis.



References:

Polensek SH. Labyrinthitis. In: Ferri FF, ed. Ferri’s Clinical Advisor 2008: Instant Diagnosis and Treatment. 1st ed. Philadelphia, Pa: Mosby Elsevier; 2008.




Review Date: 9/27/2008
Reviewed By: Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. 9/11/08

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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