The results of the treatment of Meniere's disease by intratympanic instillation of gentamicin in 32 patients over a 24-months period were analyzed. The receded vestibular function was found in 96.8% patients, whereas in the remaining 3.2% pronounced vestibular hypofunction was observed. One month after the treatment vertiginous attacks disappeared in all the patients. However, three months after the treatment infrequent episodes of mild degree vertigo and mild unsteadiness that did not require additional intratympanic gentamicin application appeared in 15% of the patients with Meniere's disease. The vertiginous attacks ceased or were pronouncedly reduced in 85% of the patients. The unstable vestibular hypofunction was successfully converted into stabilized, centrally compensated areflexia. Intratympanic gentamicin exerted better results than the other invasive therapies for intractable Meniere's disease.
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