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Outcome of cochlear implantation in a case of cochlear aplasia with cochlear nerve deficiency
BMJ Case Reports, 2023Cochlear nerve deficiency in cochlear aplasia is a contraindication for cochlear implantation (CI) anticipating poor auditory response. Few authors have reported auditory outcomes even without nerves following CI. This study outlines the audiological outcomes of a patient in early childhood with cochlear aplasia and cochlear nerve deficiency who ...
Bibhu Prasad Hota +3 more
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The management of cochlear nerve deficiency
Cochlear Implants International, 2013The assessment process is critical in deciding whether a profoundly deaf child with cochlear nerve deficiency (CND) will be suitable for a cochlear or auditory brainstem implant (ABI). Magnetic resonance imaging (MRI) using submillimetric T2 weighted gradient echo or turbo spin echo sequences is mandatory for all profoundly deaf children to diagnose ...
Freeman, S R +10 more
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Cochlear implantation in children with cochlear nerve deficiency
International Journal of Pediatric Otorhinolaryngology, 2014The aim of this study was to report on auditory performance after cochlear implantation in children with cochlear nerve deficiency.A retrospective case review was performed. Five patients with pre-lingual profound sensorineural hearing loss implanted in an ear with cochlear nerve deficiency participated in the study.
VINCENTI, Vincenzo +5 more
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Effects of stimulation by cochlear implant on the cochlear nerve
The Laryngoscope, 1989AbstractDegeneration of the cochlear nerve before and after placement of the cochlear implant might influence the efficacy of the device. We examined histological characteristics, including the caliber of the cochlear nerve fibers of the central segment proximal to the porus acusticus, in three profoundly deaf patients.
Guiseppe A. Sfogliano +2 more
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The Cochlear Nerve in Meniere's Disease
Archives of Otolaryngology - Head and Neck Surgery, 1980Cochlear nerves of 11 patients with advanced Meniere's disease were studied by light and electron microscopy. All the nerves appeared normal on light microscopy. In cross sections, the density of myelinated nerve fibers was approximately 20,000 fibers per square millimeter in most cases. In two cases, the density was reduced, about 14,000/sq mm.
Yrjö Collan +2 more
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Asymptomatic Schwannoma of the Cochlear Nerve
Archives of Otolaryngology - Head and Neck Surgery, 1982During systematic study of temporal bone histopathology at The Deafness Foundation, Memphis, we found an unsuspected small schwannoma arising solely from the cochlear nerve, compressing the facial nerve within the internal auditory canal. The primary temporal bone pathologic finding was bilateral otosclerosis.
John J. Shea, Nobuo Ayani
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Pacing and Clinical Electrophysiology, 1987
To simulate through electrical stimulation the auditory nerve excitation patterns produced by a normal ear, it is necessary to control both the spatial and the timing aspects of the neural firing pattern. While the spatiaJ localization, the “place” aspect of stimulation can probably be achieved adequately with either scala tympani or direct eighth ...
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To simulate through electrical stimulation the auditory nerve excitation patterns produced by a normal ear, it is necessary to control both the spatial and the timing aspects of the neural firing pattern. While the spatiaJ localization, the “place” aspect of stimulation can probably be achieved adequately with either scala tympani or direct eighth ...
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Cochlear Processes Reflected in Responses of the Cochlear Nerve
Acta Oto-Laryngologica, 1985The effects of sound frequency, intensity, and duration on responses of cochlear-nerve fibers and inner hair cells (IHCs) are reviewed and compared. The frequency selectivity observed in the nerve is already present in the IHC receptor potential but synaptic transmission appears to influence some other properties of the nerve response.
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The involvement of the cochlear nerve in neurinomas of the eighth cranial nerve [PDF]
Archives of Oto-Rhino-Laryngology, 1989 In view of recent controversies concerning the preservation of hearing in acoustic neurinoma surgery, we examined the courses of the vestibular and cochlear nerve fibers in 12 intact acoustic neurinomas studied in our department. Due to its lack of specificity, the Luxol fast blue stain was found to be inadequate for our study of the nerve fibers.
G. Forton +3 more
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Effect of Cochlear Nerve Electrocautery on the Adult Cochlear Nucleus
Otology & Neurotology, 2015Electrocauterization and subsequent transection of the cochlear nerve induce greater injury to the cochlear nucleus than sharp transection alone.Some studies show that neurofibromatosis Type 2 (NF2) patients fit with auditory brainstem implants (ABIs) fail to achieve speech perception abilities similar to ABI recipients without NF2.
William H. Merwin +7 more
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