(3) High frequency progressive sensorineural hearing loss is reported to occur in the majority of the patients with diabetes mellitus because of cochlear and eighth nerve
The concept of modiolar hugging electrodes places the contacts of the electrodes closer to the eighth nerve
and spiral ganglia.
Aseptic meningitis, cerebrospinal fluid leak, ataxia, profound ipsilateral hearing loss, and seventh and eighth nerve
deficits are the most common postoperative complications.
Although patients who have NF2 may have multiple cutaneous and subcutaneous neurofibromas as well as spinal cord and brain tumors, the cardinal finding is the presence of bilateral tumors on the vestibular branch of the eighth nerve
Labyrinthectomy and eighth nerve
section are procedures in which the balance and hearing mechanism in the inner ear are destroyed on one side.
In both cases, the patients were in extremely poor physical health and were unable to be successfully rehabilitated; one because of eighth nerve
damage secondary to Kanomycin which resulted in permanent vertigo and complete deafness and in the other case that of a physician with personality problems prior to dialysis- simply a failure to thrive on dialysis despite the best possible management.
DISCUSSION: The head and neck regions accounts for 25 to 45 percent of benign schwannomas, and most of these arise in the eighth nerve
but are relatively uncommon from the seventh or the fifth nerves.
(10) Symptoms are those of eighth nerve
compression, including unilateral hearing loss and vestibular weakness, thus mimicking symptoms of acoustic neuroma.
Further observations in the eighth nerve
in Meniere's disease.
Some reported cases of 13.7 THS had additional involvement of the fifth nerve (commonly the first division) or optic, seventh or eighth nerves
. Sympathetic innervation of the pupil is occasionally affected.
The outer oral hood nerve plexus (OOHNP) is first recognized as several fibers from the left seventh and eighth nerves
, which spread toward the posterior distal margin of the primordial oral hood (Fig.