Endolymphatic Sac Decompression for Ménière's Disease
The cause of
Ménière's disease is unknown, but it may be related to
a fluid imbalance in the inner ear. This fluid (endolymph) is
contained in a part of the inner ear called the endolymphatic sac.
In endolymphatic sac decompression, a small amount of bone is removed
from inside the ear. This provides more room for the endolymphatic sac when it
swells with too much fluid. By providing more room for the sac to swell,
pressure inside the inner ear is avoided and vertigo does not develop.
An acoustic neuroma is a noncancerous growth that develops on the eighth cranial nerve. Also known as the vestibulocochlear nerve, it connects the inner ear with the brain and has two different parts. One part is involved in transmitting sound; the other helps send balance information from the inner ear to the brain.
Acoustic neuromas -- sometimes called vestibular schwannomas or neurolemmomas -- usually grow slowly over a period of years. Although they do not actually invade the brain, they can...