外リンパ瘻における平衡障害の予後

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  • Prognosis of Vestibular Symptoms after Perilymphatic Fistula

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Fifty three patients with spontaneous and traumatic perilymph fistulas (PL F) were treated in our institutions from 1988 to 1992. The presence of fistula was confirmed surgically in 20 patients (PLF-conf group). In the remaining 33, it was not found during the operation or was treated simply with bedrest and medication (PLF-susp group). Clinical features and recovery of auditory and vestibular function were compared in these two groups. No difference was noted in the clinical features of the two groups. Hearing recovery in the PLF-conf group was worse (recovery rate 30%) than in the PLF-susp group (recovery rate 69%). On the other hand, there was no significant difference in the recovery from vestibular symptoms between the two groups. Dizziness disappear-ed in all, except in two patients in the PLF-susp group. Central compensation may account for the recovery of vestibular function.

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