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DIZZINESS
Dizziness is nothing more than an altered sense
of position. We gain our sense of position from what we see, what our inner ear
tells us and what we feel. When the brain either receives inaccurate position
information or the brain interprets the position information inaccurately, the
individual will have symptoms.
Symptoms of dizziness vary and may be
described as a sense of spinning, light-headedness, or loss of balance or
equilibrium. The symptoms may be continuous, intermittent or related to
position change. Multiple disorders of the inner ear or its pathways to the
brain may result in these related symptoms. This includes Meniere's Disease,
vestibular neuronitis, labyrinthitis, benign paroxysmal positional vertigo,
superior semicircular canal dehiscence syndrome and tumors such as acoustic
neuroma. Hearing loss may often accompany these disorders.
When these
symptoms are present, the individual should undergo a neurotologic evaluation.
In additions to a thorough history and physical examination, an individual with
symptoms of dizziness may require a hearing test, balance studies, such as
electronystagmography (ENG or VNG), platform posturography and vestibular
evoked myogenic potentials (VEMP), and radiographic imaging such as magnetic
resonace imaging (MRI) and Computerized Tomography (CT). |