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Cochlear hydrops. Cochlear hydrops (or cochlear Meniere's or cochlear endolymphatic hydrops) is a condition of the inner ear involving a pathological increase of fluid affecting the cochlea. This results in swelling that can lead to hearing loss or changes in hearing perception. It is a form of endolymphatic hydrops and related to Ménière's ...
Endolymphatic hydrops. Endolymphatic hydrops is a disorder of the inner ear. It consists of an excessive build-up of the endolymph fluid, which fills the hearing and balance structures of the inner ear. Endolymph fluid, which is partly regulated by the endolymph sac, flows through the inner ear and is critical to the function of all sensory ...
0.3–1.9 per 1,000 [ 1] Ménière's disease ( MD) is a disease of the inner ear that is characterized by potentially severe and incapacitating episodes of vertigo, tinnitus, hearing loss, and a feeling of fullness in the ear. [ 3][ 4] Typically, only one ear is affected initially, but over time, both ears may become involved. [ 3]
Electrocochleography (abbreviated ECochG or ECOG) is a technique of recording electrical potentials generated in the inner ear and auditory nerve in response to sound stimulation, using an electrode placed in the ear canal or tympanic membrane. [ 1] The test is performed by an otologist or audiologist with specialized training, and is used for ...
Hydrocephalus is a condition in which an accumulation of cerebrospinal fluid (CSF) occurs within the brain. [ 1] This typically causes increased pressure inside the skull. Older people may have headaches, double vision, poor balance, urinary incontinence, personality changes, or mental impairment.
Differential diagnosis Endolymphatic hydrops , temporomandibular joint dysfunction , superior canal dehiscence syndrome , labyrinthine fistula [ 1 ] Eustachian tube dysfunction ( ETD ) is a disorder where pressure abnormalities in the middle ear result in symptoms.
Epidemiology. This is a very rare tumor, since only about 1 in 35,000 to 40,000 people have VHL, of whom about 10% have endolymphatic sac tumors. Patients usually present in the 4th to 5th decades without an gender predilection. The tumor involves the endolymphatic sac, a portion of the intraosseous inner ear of the posterior petrous bone.
Auditory neuropathy. Auditory neuropathy ( AN) is a hearing disorder in which the outer hair cells of the cochlea are present and functional, but sound information is not transmitted sufficiently by the auditory nerve to the brain. The cause may be several dysfunctions of the inner hair cells of the cochlea or spiral ganglion neuron levels. [1]
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