Force dependency of benign paroxysmal positional vertigo in acute traumatic brain injury: a prospective study

In under 40 year olds, traumatic brain injury (TBI) is the most common cause of disability, with vestibular features of dizziness and imbalance found in c. 80% of acute patients,1 and if persistent, affects employment prospects.2 We recently described a new condition called vestibular agnosia (VA), in TBI with both imbalance and loss of vertigo perception from disrupted cortical connectivity .3 VA increases the risk of non-diagnosis of benign paroxysmal positional vertigo (BPPV) sevenfold .3 Hence, we prospectively assessed the frequency and risk factors for BPPV in TBI to identify cases most at risk of BPPV, since patient with acute TBI vertigo reports are unreliable. We assessed: (1) prevalence of BPPV in acute TBI in a West London Major Trauma Centre; (2) factors that predict BPPV in this cohort.

Data were acquired from a Medical Research Council (UK) funded, 3-year prospective study in…

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