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Letteratura scientifica selezionata sul tema "Cochlear nerve pathologies"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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Articoli di riviste sul tema "Cochlear nerve pathologies"

1

Ortmann, Amanda J., and J. Gail Neely. "Sudden Sensorineural Hearing Loss and Delayed Complete Sudden Spontaneous Recovery." Journal of the American Academy of Audiology 23, no. 04 (April 2012): 249–55. http://dx.doi.org/10.3766/jaaa.23.4.3.

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Abstract (sommario):

This is a case report of a 53-yr-old female who experienced sudden sensorineural hearing loss (SSNHL) accompanied by roaring tinnitus in her right ear. The patient’s hearing partially improved in the low frequencies in response to intratympanic injections. Given that her hearing loss did not improve further, the patient was fitted with a hearing aid to mask the tinnitus and restore a sense of balance between the two ears. Approximately 9 mo postonset of the SSNHL, a complete spontaneous recovery of hearing occurred. Such a delayed and complete recovery is highly unusual.This case highlights th

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2

Honjo, Iwao, Eri Naito, Yasushi Natto, Haruo Takahashi, Kazumasa Nishimura, Yosaku Shiomi, and Yasuhiko Sakaguchi. "Surface-Coil Magnetic Resonance Imaging of the Internal Auditory Canal and the Inner Ear Preliminary Report." Annals of Otology, Rhinology & Laryngology 104, no. 10 (October 1995): 776–82. http://dx.doi.org/10.1177/000348949510401005.

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Abstract (sommario):

Parasagittal surface-coil magnetic resonance imaging of the internal auditory canal and the inner ear was performed. We used T2-weighted fast spin-echo sequences to visualize the inner ear and the individual nerves in the internal auditory canal with high contrast in a short acquisition time. Computer-assisted quantitative measurement of the nerves was performed to estimate the cross-sectional areas and the diameters of the nerves. The average diameters of the facial nerve, the cochlear nerve, and the vestibular nerve of normal-hearing individuals were, respectively, 1.1 ± 0.2 mm (mean ± SD),

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3

Kilpatrick, Lauren A., Juhong Zhu, Fu-Shing Lee, and Hainan Lang. "Role of Stromal Cell-Derived Factor-1 Expression in the Injured Mouse Auditory Nerve." Otolaryngology–Head and Neck Surgery 145, no. 6 (September 23, 2011): 1007–15. http://dx.doi.org/10.1177/0194599811416778.

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Abstract (sommario):

Objective. The degeneration of hair cells and spiral ganglion neurons (SGNs) is an important pathologic process in the development of sensorineural hearing loss. In a murine model, predictable and reproducible damage to SGNs occurs through the application of ouabain to the round window. Recent evidence has shown that the chemokine stromal cell–derived factor-1 (SDF-1) is a potent chemoattractant of hematopoietic stem cells (HSCs) and provides trophic support to injured tissues during development and maturation. The hypothesis for the current study is that expression of SDF-1 plays an important

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4

Szilvassy, Judith, Jeno Czigner, Istvan Somogyi, Jozsef Jori, Jozsef G. Kiss, and Zoltan Szilvassy. "Cochlear implantation in a patient with grand mal epilepsy." Journal of Laryngology & Otology 112, no. 6 (June 1998): 567–69. http://dx.doi.org/10.1017/s0022215100141106.

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Abstract (sommario):

AbstractA case is reported in which a Nucleus 22 channel intracochlear implant was used to treat a deaf Hungarian woman (aged 37 years) with a 34-year history of grand mal (GM) epilepsy maintained on carbamazepinediazepam combination therapy who had not benefited from conventional hearing aids. Pre-operative electrical stimulation of the acoustic nerve, however, exhibited a good nerve function with no evidence of abnormal waveforms in the electroencephalogram (EEG). Successful intracochlear insertion of the 22 electrode resulted in a 40 dB hearing improvement at frequencies 250–2000 Hz in the

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5

Seyyedi, Mohammad, Barbara S. Herrmann, Donald K. Eddington, and Joseph B. Nadol. "The Pathologic Basis of Facial Nerve Stimulation in Otosclerosis and Multi-Channel Cochlear Implantation." Otology & Neurotology 34, no. 9 (December 2013): 1603–9. http://dx.doi.org/10.1097/mao.0b013e3182979398.

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6

Baloh, R. W., I. Lopez, K. Beykirch, A. Ishiyama, and V. Honrubia. "Clinical-pathologic correlation in a patient with selective loss of hair cells in the vestibular endorgans." Neurology 49, no. 5 (November 1997): 1377–82. http://dx.doi.org/10.1212/wnl.49.5.1377.

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Abstract (sommario):

We found a selective loss of vestibular hair cells in a patient followed for more than 10 years with imbalance and oscillopsia due to idiopathic progressive loss of vestibular function. Hearing function and cochlear hair cells were normal. The vestibulo-ocular reflex (VOR) gain at high frequencies was relatively maintained despite marked shortening of the dominant VOR time constant (to less than 500 ms). Ultrastructural examination of remaining hair cells showed mitochondrial abnormalities. The ultrashort VOR time constant probably resulted from changes in firing patterns of the primary affere

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7

Møller, Aage R. "Sensorineural Tinnitus: Its Pathology and Probable Therapies." International Journal of Otolaryngology 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/2830157.

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Abstract (sommario):

Tinnitus is not a single disease but a group of different diseases with different pathologies and therefore different treatments. Regarding tinnitus as a single disease is hampering progress in understanding of the pathophysiology of tinnitus and perhaps, more importantly, it is a serious obstacle in development of effective treatments for tinnitus. Subjective tinnitus is a phantom sound that takes many different forms and has similarities with chronic neuropathic pain. The pathology may be in the cochlea, in the auditory nerve, or, most commonly, in the brain. Like chronic neuropathic pain ti

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8

Schwartz, Tyler R., Timothy Logan Lindemann, Gino Mongelluzzo, P. Ashley Wackym, and Arun K. Gadre. "Gray-Scale Inversion on High Resolution Computed Tomography of the Temporal Bone: An Observational Study." Annals of Otology, Rhinology & Laryngology 130, no. 10 (February 25, 2021): 1125–31. http://dx.doi.org/10.1177/0003489421996844.

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Abstract (sommario):

Objectives: This is a qualitative study to explore the utility of gray-scale inversion or the “invert” function of high-resolution computed tomography (HRCT) scans in the diagnosis of temporal bone anatomy and pathology. Methods: This is a case series describing an innovative application of an existing image processing tool to visualize temporal bone anatomy and pathology. Illustrative patients at a tertiary referral center with otologic symptoms and findings leading to HRCT scans of the temporal bone were included. Diagnostic HRCT scans were evaluated utilizing the gray-scale inversion functi

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9

Jain, Sachin, Kinshuk Chatterjee, M. Aftab, Dinesh Kumar, Ramsiya Singh, and Ved P. Upadhyay. "Comparative study of the efficacy of oral caroverine versus oral Gingko biloba in the treatment of cochlear synaptic tinnitus." International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 1 (December 23, 2019): 82. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20195694.

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Abstract (sommario):

<p class="abstract"><strong>Background:</strong> Cochlear synaptic tinnitus (CST), also referred to as sensorineural type III tinnitus, is a type of transformation tinnitus, resulting due to aberrant signal transduction between Inner hair cells and afferent nerve fibres owing to excessive and pathologic glutamate release and subsequent spontaneous receptor depolarization (NMDA and AMPA receptors). Of the various pharmacologic agents used for treatment for CST, <em>Gingko biloba</em> and Caroverine have stood the test of time.</p><p class="abstract">&lt

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10

Guinan, J. J., S. M. Lefler, C. A. Buchman, S. S. Goodman, and J. T. Lichtenhan. "Altered mapping of sound frequency to cochlear place in ears with endolymphatic hydrops provide insight into the pitch anomaly of diplacusis." Scientific Reports 11, no. 1 (May 17, 2021). http://dx.doi.org/10.1038/s41598-021-89902-0.

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Abstract (sommario):

AbstractA fundamental property of mammalian hearing is the conversion of sound pressure into a frequency-specific place of maximum vibration along the cochlear length, thereby creating a tonotopic map. The tonotopic map makes possible systematic frequency tuning across auditory-nerve fibers, which enables the brain to use pitch to separate sounds from different environmental sources and process the speech and music that connects us to people and the world. Sometimes a tone has a different pitch in the left and right ears, a perceptual anomaly known as diplacusis. Diplacusis has been attributed

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Tesi sul tema "Cochlear nerve pathologies"

1

Brown, Daniel. "Origins and use of the stochastic and sound-evoked extracellular activity of the auditory nerve." University of Western Australia. Dept. of Physiology, 2007. http://theses.library.uwa.edu.au/adt-WU2008.0082.

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Abstract (sommario):

[Truncated abstract] The present study investigated whether any of the characteristics of the compound action potential (CAP) waveform or the spectrum of the neural noise (SNN) recorded from the cochlea, could be used to examine abnormal spike generation in the type I primary afferent neurones, possibly due to pathologies leading to abnormal hearing such as tinnitus or tone decay. It was initially hypothesised that the CAP waveform and SNN contained components produced by the local action currents generated at the peripheral ends of the type I primary afferent neurones, and that changes in the

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