Electronystagmography

Injury	Disease	Nutrition	Poison

Symptoms	Surgery	Test	Special Topic

Overview

Risks

Results

Electronystagmography

Alternative Names:

ENG

Normal Values:

Distinct involuntary eye movements should occur after instillation of cold or hot water into the ear canal.

What abnormal results mean:

If the expected eye movements do not occur, there may be some damage to the nerve of the inner ear.

Any disease or injury that damages the acoustic nerve can cause vertigo. This may include:

Congenital disorders
Trauma
Rubella
Blood vessel disorders with hemorrhage (bleeding), clots, or atherosclerosis of the blood supply of the ear
Cholesteatoma and other ear tumors
Some poisons
Medications that are toxic to the ear nerves, including aminoglycoside antibiotics, some antimalarial drugs, loop diuretics, and salicylates

Additional conditions under which the test may be performed:

Review Date: 4/28/2005
Reviewed By: Chitra R. Uppaluri, M.D., Clinical Assistant Professor of Medicine, Saint Louis University, St. Louis, MO. Review provided by VeriMed Healthcare Network.

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