[Use of auditory brain stem implant in a patient with bilateral vestibular schwannoma (type 2 neurofibromatosis].
Surgical technique and functional results of implantation of the acoustic implant of the brain stem (BS) are described for a 16-year-old patient with bilateral vestibular shvannoma (neurofibromatosis of type 2). Initially, a large (IV degree) tumor was removed from the left cerebellopontile angle using the translabyrinthine-transcochlear approach. The function of the facial nerve recovered completely. The BS implant was implanted a year later in the course of removing shvannoma from the right cerebellopontile angle using the above approach. The patient received 22-channel implant Nucleus-CI22M. Speech intelligibility improved by 90-100%. BS implantation is today the only effective method of reestablishment of acoustic sensations in patients with bilateral destruction of the acoustic nerves due to bilateral vestibular shvannoma.
Fraysse
B
B
Matsnev
E I
EI
Lazorthes
Y
Y
Sollmann
W
W
Cochard
N
N
D000293:Adolescent; D001933:Brain Stem / Q000601:surgery*; D002530:Cerebellopontine Angle; D003054:Cochlear Implants; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D016518:Neurofibromatosis 2 / Q000601:surgery*; D009464:Neuroma, Acoustic / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D013997:Time Factors