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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]
Ménière's disease – causes sensorineural hearing loss in the low frequency range (125 Hz to 1000 Hz). Ménière's disease is characterized by sudden attacks of vertigo, lasting minutes to hours preceded by tinnitus, aural fullness, and fluctuating hearing loss. It is relatively rare and commonly over diagnosed.
[2] [4] [5] Physiologic vertigo may occur following being exposed to motion for a prolonged period such as when on a ship or simply following spinning with the eyes closed. [6] [7] Other causes may include toxin exposures such as to carbon monoxide, alcohol, or aspirin. [8] Vertigo typically indicates a problem in a part of the vestibular ...
Cochlear hydrops preferentially affects the apex of the cochlea where low-frequency sounds are interpreted. Due to the fluid imbalance in this area, parts of the cochlea are stretched or under more tension than usual, which can lead to distortions of sound, changes in pitch perception, or hearing loss, all usually in the low frequencies.
Ménétrier disease is a rare, acquired, premalignant disease of the stomach characterized by massive gastric folds, excessive mucus production with resultant protein loss, and little or no acid production (achlorhydria). The disorder is associated with excessive secretion of transforming growth factor alpha (TGF-α). [1]
Symptoms are repeated, brief periods of vertigo with movement, characterized by a spinning sensation upon changes in the position of the head. [1] This can occur with turning in bed or changing position. [3] Each episode of vertigo typically lasts less than one minute. [3] Nausea is commonly associated. [7] BPPV is one of the most common causes ...
After securing the position of physician-in-chief at the Institute for deaf-mutes, he focused on the diseases of the ear. [2] [3] Menière's studies at the deaf-mute institute helped formulate his paper, On a particular kind of hearing loss resulting from lesions of the inner ear which ultimately led to the recognition of Ménière's disease. [4]
In addition to water, endolymph fluid contains salts such as sodium, potassium, chloride and other electrolytes. If the inner ear is damaged by disease or injury, the volume and composition of the endolymph fluid can change, causing the symptoms of endolymphatic hydrops. [1]
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