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Modulation of inner ear pressure in experimental endolymphatic hydrops
1Division of Head and Neck Surgery, UCLA Medical Center 90024-1624.
Abstract:
Physiologic study of the guinea pig model of endolymphatic hydrops has been used to better understand the manifestations of Meniere's disease. Quantitative vestibular function testing demonstrates some changes in the hydrops subjects, especially if an additional stress such as postural inversion is imposed. Understanding the hydrodynamic changes on the endolymphatic and perilymphatic fluids by the hydrops condition as well as postural inversion may be useful in explaining the vestibular findings. These pressure effects may alter the micromechanics of the inner ear or possibly induce a relative vascular ischemia. Auditory dysfunction is speculated to occur through similar mechanisms.
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