[Speech perception ability in a patient with a 8-channel auditory brainstem implant].
Auditory brainstem implant (ABI) is a central prosthesis that directly stimulates the cochlear nucleus in the brainstem for those who have interrupted auditory nerves and cannot benefit from the cochlear implantation. Speech perception in a recipient of the Nuclues 8 channel ABI, the first in Japan, is reported. A 25-year-old man with bilateral acoustic nerve tumors postlingually deafened due to tumor resection received auditory sensations with 5 channels. The correct answer using a coding strategy, SPEAK, was 35% for 5 vowels and 36% for 5 monosyllables. The use of ABI also improved his lip-reading ability on monosyllables and open-set words. This indicated that he benefited from ABI, although it was limited. Even after 1 year and 3 months of follow-up, he had no serious side effects such an infection or implant rejection.
Kumakawa
K
K
Depertment of Otolaryngology, Toranomon Hospital, Tokyo.
Motizuki
Y
Y
Takahashi
N
N
Takeda
H
H
Muto
N
N
Yamane
M
M
Seki
Y
Y
Takemori
S
S
Komatsuzaki
A
A
D000328:Adult; D017626:Cochlear Nucleus; D004567:Electrodes, Implanted; D006801:Humans; D008297:Male; D013067:Speech Perception / Q000502:physiology*