Whiplash Effects on Hypothalamus and the Sympathetic System
The so-called posterior cervical sympathetic syndrome of Barre is a disputed cause of vertigo arising from cervical lesions. Barré (1924) proposed that cervical lesions might irritate the sympathetic vertebral plexus and result in a decreased blood flow to the labyrinth due to constriction of the internal auditory artery. Although numerous clinical reports of Barre syndrome have been published, few objective data exist to support an association between episodic vertigo and cervical sympathetic dysfunction. Since intracranial circulation is autoregulated independently of cervical sympathetic control, it is unlikely that lesions in the vertebrosympathetic plexus could produce focal constriction of the vasculature to the inner ear.
KeywordsMotion Sickness Whiplash Injury Median Longitudinal Fasciculus Corticotropin Release Factor Unilateral Labyrinthectomy
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