Results 181 to 190 of about 24,567 (236)

The bony cochlear nerve canal in children with absent or hypoplastic cochlear nerves

International Journal of Pediatric Otorhinolaryngology, 2011
To correlate presence and size of the bony cochlear nerve canal [BCNC] with size of the internal auditory meatus [IAM] on CT in children with absent or hypoplastic cochlear nerves [CNs] as compared to age matched controls.This retrospective case-notes review was based in the departments of Cochlear Implantation and Neuroradiology at a tertiary ...
Waheeda, Pagarkar, Roxana, Gunny, Dawn E, Saunders, Wai, Yung, Kaukab, Rajput   +4 more
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Cochlear or Nerve Stimulation

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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The management of cochlear nerve deficiency

Cochlear Implants International, 2013
The 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, Stivaros, S M, Ramsden, R T, O'Driscoll, M P, Nichani, J R, Bruce, I A, Green, K M, Henderson, L A, Rutherford, S A, King, Andrew; id_orcid 0000-0002-6546-7248, Lloyd, S K   +10 more
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Asymptomatic Schwannoma of the Cochlear Nerve

Archives of Otolaryngology - Head and Neck Surgery, 1982
During 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.
N, Ayani, J J, Shea
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The Cochlear Nerve in Meniere's Disease

Archives of Otolaryngology - Head and Neck Surgery, 1980
Cochlear 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.
J, Ylikoski, Y, Collan, T, Palva
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Cochlear nerve of the alligator lizard

Journal of Comparative Neurology, 1985
AbstractThe innervation of the auditory organ of the alligator lizard is described. Patterns of distribution of the nerve fibers were studied at the light microscopic level with the horseradish peroxidase technique, and the types of synaptic contacts with hair cells were studied at the transmission electron microscopic level with standard techniques ...
M J, Mulroy, T G, Oblak
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Cochlear Processes Reflected in Responses of the Cochlear Nerve

Acta Oto-Laryngologica, 1985
The 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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Cochlear Implantation in Children With Cochlear Nerve Absence or Deficiency

Otology & Neurotology, 2011
To evaluate speech perception after cochlear implantation in children with cochlear nerve absence or deficiency.A retrospective case review was performed to identify children who underwent cochlear implantation with cochlear nerve absence or deficiency.
Joe Walter, Kutz, Kenneth H, Lee, Brandon, Isaacson, Timothy N, Booth, Melissa H, Sweeney, Peter S, Roland   +5 more
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Degeneration behaviour of the cochlear nerve

Archiv f�r Klinische und Experimentelle Ohren- Nasen- und Kehlkopfheilkunde, 1971
On the basis of the degeneration behaviour two different types of cochlear afferent neurons can be distinguished. About 95% of all cochlear neurons are of the common type I with large myelinated spiral ganglion cells. They show complete retrograde degeneration after transsection of the cochlear nerve and they are exclusively connected to the inner hair
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Effect of Cochlear Nerve Electrocautery on the Adult Cochlear Nucleus

Otology & Neurotology, 2015
Electrocauterization 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.
Claire E, Iseli, William H, Merwin, Cristine, Klatt-Cromwell, Kendall A, Hutson, Matthew G, Ewend, Oliver F, Adunka, Douglas C, Fitzpatrick, Craig A, Buchman   +7 more
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