Abstract
Neuro-otological studies were made in 84 patients with vertigo or dizziness after head and neck injuries. Patients were classified as traumatic cervical syndrome, simple head injuries, and head injuries with brain stem disorder according to suspected localization.In patients having head injuries with brain stem lesions, equilibrium examination showed the central nervous system disorders, such as gaze-directional gaze nystagmus, failure of fixation suppression, ataxic or saccadic pursuit, diminution of OKN, and abnormal VVOR gain. Nystagmus provocated by neck torsion was frequently observed in patients with traumatic cervical syndrome. So abnormal results in neuro-otological examinations well reflected the condition of the patients with vertigo or dizziness after head and neck injuries. According to our follow-up studies on patients having head injuries with suspected brain stem disorders, there were dizziness and disequilibrium persisted with poor prognosis. However, in the other patients without brain stem disorder the results of equilibrium examinations improved generally.
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