What is an Electrocochleography (EcochG) test?
An EcochG (Electrocochleography) test is a diagnostic procedure used to measure the electrical activity of the inner ear (cochlea) and the auditory nerve in response to sound. It helps evaluate inner ear fluid pressure and function.
Why is an ECoG test done?
An ECoG test is commonly done to help diagnose conditions like Ménière’s disease or other inner ear disorders that may cause dizziness, vertigo, hearing loss, or a feeling of fullness in the ear.
How is an ECoG test performed?
During the test, a small electrode is placed either in the ear canal or on the eardrum. Sounds are delivered through earphones, and the electrical responses of the inner ear are recorded and analyzed.
The test is generally not painful. You may feel slight discomfort if the electrode is placed close to the eardrum, but most people tolerate it well.
What do the results mean?
The results help determine if there is abnormal fluid pressure or dysfunction in the inner ear. This information helps in diagnosing conditions like Ménière’s disease and guiding treatment.