メニエール病に対する内耳麻酔療法について

概要

論文の詳細を見る
Twenty-eight patients (30 ears) with Ménières disease were treated by intratympanic injection of 4% Lidocain. Lidocaine (0.5 ml) was infused into the tympanic cavity transtympanically. These patients had been treated by other conservative medical therapy for at least one month, but had not responded. Examination 6 months later showed that : 1) This method was extremely effective in reducing vertigo. In 24 ears (80.0%) the vertigo disappeared completely, in 2 ears (6.7%) it improved considerably, while in 4 ears it remained unchanged. 2) In 6 ears (20.0%) hearing improved to above 15 dB, and in 24 ears (80.0%) it remained unchanged. We did not find any deterioration of hearing after the therapy. 3) Before the injection all patients had tinnitus. Tinnitus was reduced in 9 ears (30.0%) with comparatively good hearing under 55 dB prior to therapy, but remained unchanged in the other ears. The intratympanic injection of 4 % Lidocaine is not only extremely effective but is also very safe as a therapy for Ménièrs disease. Therefore we consider this therapy worth trying for severe Ménièrs disease before more extreme surgery is considered.