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325 Possible Causes for Spiral, canal, cochlea, of

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  • Hereditary Sensory Neuropathy

    The cochlea showed cell loss in the organ of Corti, and spiral ganglia and atrophy of acoustic nerves.[ncbi.nlm.nih.gov] Cough could be triggered by noxious odours or by pressure in the external auditory canal (Arnold's ear-cough reflex).[ncbi.nlm.nih.gov] The cochlea showed cell loss in the organ of Corti, and spiral ganglia and atrophy of acoustic nerves.[ncbi.nlm.nih.gov]

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  • Superior Semicircular Canal Dehiscence

    We hypothesize that the SCD acts as a 'third window' into the inner ear, shunting volume velocity away from the cochlea and through the dehiscent canal, altering cochlear[dspace.mit.edu] , the other semicircular canals work normally.[neuroequilibrium.in] There normally are two windows in the bony capsule, the oval and round windows, which direct the forces associated with sound waves along the spiral basilar membrane (figure[n.neurology.org] Caulk Co.) to prevent release of fluid from the cochlea, and to prevent air leaking into the cochlea.[karger.com]

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  • Cogan Syndrome

    The patient studied during an acute exacerbation showed abnormal MRI signals in the vestibule, semicircular canals, vestibular nerve, and cochlea, which disappeared after[content.iospress.com] Although severe bilateral degeneration of the spiral ganglion neurons was seen, especially on the right, the postoperative word discrimination score was between 50 and 60%[ncbi.nlm.nih.gov] […] ligament, osteoneogenesis of the round window, spiral ganglion cell degeneration, cystic degeneration of the stria vascularis, middle ear effusion, demyelination of the eighth[pmj.bmj.com] The vestibular test battery evaluated both canal and otolith functions.[pediatrics.aappublications.org]

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  • Herpes Simplex Virus 1

    The research of viral DNA within the inner ear is the only direct way to increase our knowledge about the viral role in postnatal damage to the cochlea.[ncbi.nlm.nih.gov] The SVN was 2.4 mm longer than the IVN, and in 65% of the cases, the IVN ran in two separate bony canals, which was not the case for the SVN.[ncbi.nlm.nih.gov] Most HSV infections in newborns are caused by HSV-2 that the infant catches from the mother's birth canal.[health.ny.gov] […] serology or clinical history for congenital infections supports the hypothesis that Herpesviridae, even after acquired postnatal infections, could remain in latent phase in the spiral[ncbi.nlm.nih.gov]

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  • Stapedectomy

    Despite the fact that the prosthesis remains unfixed in the scala vestibuli at the basal turn of the cochlea, the patient has remained nearly asymptomatic in his right ear[ncbi.nlm.nih.gov] A sudden perilymph flow occurs following platinotomy, due to congenital malformation (abnormally wide cochlear aqueduct or internal auditory canal fistula), that causes an[ncbi.nlm.nih.gov] The stria vascularis and spiral ligament may be less than 0.2 mm inferior to the inferior margin of the oval window posteriorly.[ncbi.nlm.nih.gov] Patients who had poor hearing outcomes reported abolition of their tinnitus, suggesting that this was due to the improvement in the fluid mechanics of the cochlea resulting[ncbi.nlm.nih.gov]

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  • Conductive Hearing Loss

    […] levels through attenuation of both the primary tones and the evoked response by the middle ear, as well as through modification of the effective L1-L2 relationship within the cochlea[ncbi.nlm.nih.gov] PATIENTS: Vestibular and/or auditory findings indicative of canal dehiscence and demonstration of superior canal dehiscence on computed tomography of the temporal bone.[ncbi.nlm.nih.gov] METHODS: The CT scans were performed using a 40-section spiral CT scanner in 49 patients with post-traumatic CHL (n 29) and without CHL (n 20).[ncbi.nlm.nih.gov] In cases of high-frequency hearing loss (regardless of the etiology), the response may be dominated by more apical regions of the cochlea at lower intensities and thus have[ncbi.nlm.nih.gov]

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  • Labyrinthitis

    OBJECTIVE: To quantitatively demonstrate and classify the histopathologic changes in the cochlea of the human temporal bones with labyrinthitis ossificans (LO).[ncbi.nlm.nih.gov] […] semicircular canal and lateral semicircular canal calcification in one, four, three and two patients, respectively.[ncbi.nlm.nih.gov] There was a strong negative correlation between the degree of bony occlusion by labyrinthitis ossificans and the normality of the spiral ganglion cell count.[ncbi.nlm.nih.gov] CASE REPORT: The initial examination showed intact lateral semicircular canal (LSC) function. Cerebral MRI results were normal.[ncbi.nlm.nih.gov]

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  • Bacterial Meningitis

    One patient had a normal cochlea, and the positioner could have been the main cause of bacterial spread.[ncbi.nlm.nih.gov] A cortical mastoidectomy was performed in 6 of the 7 surgical patients; the remaining patient underwent a canal-wall-down procedure.[ncbi.nlm.nih.gov] Spiral computed tomography was performed and a three-dimensional reconstruction of the bony cranium was done.[ncbi.nlm.nih.gov] It may be transmitted from mother to newborn as the newborn passes through the birth canal.[merckmanuals.com]

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  • Benign Paroxysmal Positional Vertigo

    Understanding the inner ear The inner ear includes the cochlea and semicircular canals.[patient.info] In the past 2 years, eight patients have undergone posterior semicircular canal occlusion at the Chicago Otology Group.[ncbi.nlm.nih.gov] Implant site preparation is more comfortable for the patient when performed with spiral drills than with continuous malleting of the osteotomes.[ncbi.nlm.nih.gov] They may also have been taking prescription anti-nausea drugs for months, or even years, which may slow the perceived spiraling but don’t stop the vertigo.[nytimes.com]

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  • Presbycusis

    Deficiency in the circulation and perfusion of the cochlea may be a factor in presbycusis.[ncbi.nlm.nih.gov] Your healthcare provider will use a lighted scope (otoscope) to check in the outer ear canal and to look at the ear drum.[hopkinsmedicine.org] Presbycusis subjects exhibited a reduced spiral ganglion cell population.[ncbi.nlm.nih.gov] Damage to the stria results in impaired functioning of the cochlea and hence, hearing loss.[symptoma.com]

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