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Disruptive Dizziness Among Post-9/11 Veterans With Deployment-Related Traumatic Brain Injury.

Swan AA, Akin FW, Amuan ME, Riska KM, Hall CD, Kalvesmaki A, Padilla S, Crowsey E, Pugh MJ. Disruptive Dizziness Among Post-9/11 Veterans With Deployment-Related Traumatic Brain Injury. The Journal of head trauma rehabilitation. 2022 Jul 1; 37(4):199-212.

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OBJECTIVE: To identify disruption due to dizziness symptoms following deployment-related traumatic brain injury (TBI) and factors associated with receiving diagnoses for these symptoms. SETTING: Administrative medical record data from the Department of Veterans Affairs (VA). PARTICIPANTS: Post-9/11 veterans with at least 3 years of VA care who reported at least occasional disruption due to dizziness symptoms on the comprehensive TBI evaluation. DESIGN: A cross-sectional, retrospective, observational study. MAIN MEASURES: International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis codes of dizziness, vestibular dysfunction, and other postconcussive conditions; neurobehavioral Symptom Inventory. RESULTS: Increased access to or utilization of specialty care at the VA was significant predictors of dizziness and/or vestibular dysfunction diagnoses in the fully adjusted model. Veterans who identified as Black non-Hispanic and those with substance use disorder diagnoses or care were substantially less likely to receive dizziness and vestibular dysfunction diagnoses. CONCLUSIONS: Access to specialty care was the single best predictor of dizziness and vestibular dysfunction diagnoses, underscoring the importance of facilitating referrals to and utilization of specialized, comprehensive clinical facilities or experts for veterans who report disruptive dizziness following deployment-related TBI. There is a clear need for an evidence-based pathway to address disruptive symptoms of dizziness, given the substantial variation in audiovestibular tests utilized by US providers by region and clinical specialty. Further, the dearth of diagnoses among Black veterans and those in more rural areas underscores the potential for enhanced cultural competency among providers, telemedicine, and patient education to bridge existing gaps in the care of dizziness.

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