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ECoG measurement

HNGBIKER hngbiker at aol.com
Wed Apr 3 16:23:17 EST 1996

We have discontinued the use of ECoG in the measurement of inner ear
function relating to hydrops. Typically what we found was that the results
are essentially normal in patients who do not have symptoms of decreased
hearing or measured low-frequency hearing loss when the ECoG is being

For patients who do have low-frequency hearing loss, fullness/pressure,
tinnitus and any other symptom associated with hydrops, then the ECoG
isn't necessary to make the diagnosis. The diagnosis is obvious.

But this would be a nice time to ask those of you who use ECoGs whether
they routinely differentiate SNHL as hydrops? Do they tell you which ear
is active when the patient is episodically vertiginous (usually occurs
from inner ear pathology) when the patient has no other localizing

Howard Gutnick, Ph.D.
Atlantic Coast Ear Specialists, P.C.
Virginia Beach, VA

e-mail HNGBIKER at aol.com

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