An ECOG is a test that measures the response to sound within the inner ear. This exam is conducted by placing a recording electrode in proximity to the inner ear.
What is it?
An ECOG is performed to assess the function of the inner ear. This test may be necessary if your doctor is concerned about excess fluid pressure in the ear, which may lead to symptoms such as hearing loss, dizziness, and tinnitus. The test can also be used to evaluate for Meniere’s disease or endolymphatic hydrops.
What should I do to prepare?
The patient should expect to sit still and quiet during the test. It is advised that you do not wear facial makeup to the test.
What happens during the process?
Your forehead will be cleaned, and small electrodes will be taped to your head. Your ear canals will also be cleaned, and foam electrodes will be placed inside. You will be asked to close your eyes as you listen to a series of sounds. The test will proceed with ease if the patient is relaxed. A computer will detect and analyze the electrical response of your cochlea to the sound stimulation.
What are the risks and potential complications?
There should not be any discomfort during the test. Any movements may delay the testing process, so it is important to sit still throughout.
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