![]() ![]() ( 8) Vertigo or dizziness also accounted for 2.5% of presentations to US emergency department in the years 1995 to 2004. ( 7) In the United States 1.7% of ambulatory medical care visits recorded vertigo or dizziness among the chief complaints. ( 3- 6) A German national telephone health survey followed by structured neurotologic interview identified the lifetime prevalence of vestibular vertigo to be 7.8% with an annual incidence of 1.5%. ( 2)Įpidemiological surveys showed that 20% to 30% of the population may have experienced vertigo or dizziness in their lifetime. ![]() ![]() Even though a consensus has not been reached on the precise definition of vertigo, it is reasonable to infer from the survey results that the overwhelming majority of otologists would recognize vertigo as distinct from other flavors of dizziness, such as presyncopal lightheadedness, disequilibrium, or other unsettling sensations. A narrow focus on spinning may not be sensitive to chronic or milder inner ear pathology, however, where sensation of movement other than spinning might be elicited. Since acute inner ear pathology typically produces a spinning sensation, the more restrictive definition of vertigo renders it a more specific clue for a possible otologic vestibular disorder. ( 1) Whereas 45% of respondents favored restricting vertigo to describe a sensation of spinning or turning only, 40% of respondent favored including any sensation of movement in the definition of vertigo. A survey of the members of the American Otological Society and the American Neurotology Society revealed that 75% of respondents agreed or agreed strongly that the definition of vertigo in clinical practice should be more precise. Effective diagnosis and management of vertigo begins with understanding what the symptom may represent. ![]()
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