Abstract
Endolymphatic sac surgery is one of the most widely accepted techniques used to treat intractable Meniere's disease. In order to improve sac surgery, we have developed some new techniques. A simple mastoidectomy was performed, exposing the endolymphatic sac in the area between the sigmoid sinus and the inferior margin of the posterior semicircular canal. The sac was opened and filled with a mass of prednisolone. A bundle of absorbable gelatin films was then inserted into the sac lumen to expand its volume, followed by gelatin sponges dipped in a high concentration dexamethasone. The short-term results (1-8 months) in 8 patients with intractable Meniere's disease treated with the above techniques, i. e. endolymphatic sac drainage and steroidinsertion surgery are as follows: vertigo was completely controlled, hearing was improved and annoyance due to tinnitus was decreased in all cases.
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