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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]
A 2018 study from Korea found the chance of progression to Meniere's disease of all participants with SLFHL to be 9.38% with an average progression time of 1.7±1.4 years, but when limited to patients with recurring symptoms "it was confirmed that about half (46.88%) of them progressed to Meniere's disease."
Dizziness affects approximately 20–40% of people at some point in time, while about 7.5–10% have vertigo. [3] About 5% have vertigo in a given year. [10] It becomes more common with age and affects women two to three times more often than men. [10] Vertigo accounts for about 2–3% of emergency department visits in the developed world. [10]
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.
The superior semicircular canal dehiscence syndrome (SSCDS) is a set of hearing and balance symptoms that a rare disease/disorder of the inner ear's superior semicircular canal/duct induces. [ 3 ] [ 4 ] [ 5 ] The symptoms are caused by a thinning or complete absence of the part of the temporal bone overlying the superior semicircular canal of ...
Endolymphatic hydrops may occur as a result of trauma such as a blow to the head, infection, degeneration of the inner ear, allergies, dehydration and loss of electrolytes or in extremely rare circumstances a benign tumor such as an endolymphatic sac tumor. [2]
“In turn, this is expected to reduce the number of neurons that get consumed by the disease i.e., less cell death.” However, the research is still at an early, preclinical stage, she cautioned.
Though the time distinctions are imprecise, diseases can be rapidly progressive (typically days to weeks) or slowly progressive (months to years). The time course of a disease affects whether it is considered acute or chronic. By definition, virtually all slowly progressive diseases are also chronic diseases.
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