
Vertigo. Southern Neurology. Dizziness – is it vertigo ?. Is the dizziness is vertiginous in nature , or more suggestive of near-syncope or non-vestibular dizziness Is the dizziness is affected by movements of the head, if so it suggests a peripheral vertigo
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Southern Neurology
Is the dizziness is vertiginous in nature, or more suggestive of near-syncope or non-vestibular dizziness
Is the dizziness is affected by movements of the head, if so it suggests a peripheral vertigo
Vertigo lasting seconds, which is only precipitated by sudden movements of the head (looking up, suddenly twisting the head, suddenly getting up from a supine position or when suddenly rolling over in bed) suggests benign positional vertigo
The duration of the vertigo provides useful information
Deafness and/or tinnitus suggests peripheral vertigo
Cupulolithiasis theory
Canalithiasis theory
In one U.S. study, the age- and sex-adjusted incidence was 64 per 100,000. Incidence in general population is higher in persons older than 40 years. In a recent study of a group of elderly patients, the incidence was found to be approximately 8%. BPPV may represent a health hazard to the elderly. Estimates suggest that approximately 20% of all falls that result in hospitalization for serious injuries in the elderly are due to vertigo of end-organ origin (most often related to BPPV).
Meniere’s disease 5 cases
Post-surgical 10 cases (including 5 ear surgery)
Ototoxicity 4 cases
Latency
Duration
Fatigability
Localisation
Central
Pure vertical, usually downbeat
Unusual
Persistent
Unusual
Brainstem or cerebellum
Peripheral
Torsional upbeat or horizontal geotropic
Usual
Brief
Usual
Posterior or horizontal semi-circular canal
Nystagmus