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Vertigo. Vertigo is a condition in which a person has the sensation that they are moving, or that objects around them are moving, when they are not. [ 1] Often it feels like a spinning or swaying movement. [ 1][ 2] It may be associated with nausea, vomiting, perspiration, or difficulties walking. [ 2] It is typically worse when the head is ...
Dizziness is an imprecise term that can refer to a sense of disorientation in space, vertigo, or lightheadedness. [ 1] It can also refer to disequilibrium [ 2] or a non-specific feeling, such as giddiness or foolishness. [ 3] Dizziness is a common medical complaint, affecting 20–30% of persons. [ 4] Dizziness is broken down into four main ...
Benign paroxysmal positional vertigo ( BPPV) is a disorder arising from a problem in the inner ear. [ 3] 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]
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]
The vestibular system, in vertebrates, is a sensory system that creates the sense of balance and spatial orientation for the purpose of coordinating movement with balance. Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of the inner ear in most mammals . As movements consist of rotations and translations ...
1% of people [ 4] Vitiligo ( / ˌvɪtɪˈlaɪɡoʊ /) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. [ 1] The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure. [ 5][ 6] Treatment options include topical medications, light therapy ...
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.
Perivascular space is depicted in the inset box. A perivascular space, also known as a Virchow–Robin space, is a fluid-filled space surrounding certain blood vessels in several organs, including the brain, [ 1] potentially having an immunological function, but more broadly a dispersive role for neural and blood-derived messengers. [ 2]