Sakata E, Nakazawa H, Iwashita N
Auris Nasus Larynx. 1984;11(1):11-8. doi: 10.1016/s0385-8146(84)80012-7.
Tinnitus is an otological symptom which is often encountered and is yet difficult to treat. If tinnitus is of cochlear origin then it seems reasonable to assume that a total depression of the cochlear function will abolish cochlear tinnitus. To achieve this depression, transtympanic injections of a local anesthetic (4% Lidocaine) to anesthetize the inner ear and of Decadoron were conducted in a patient suffering from tinnitus. One hundred and sixty-eight patients (220 ears) who had suffered from relatively long-term tinnitus were included in this study. In almost all of the cases the clinical symptoms and the otological findings (i.e., the audiogram and caloric test) indicated that the probable lesion underlying the tinnitus was located within the end organ. In some cases this injection brought a transient (for few days), slight, neurosensorial deafness in the low-frequency range. This auditory disorder, however, was completely restored without sequelae. Our results are summarized as follows: in 76 ears, tinnitus was abolished completely, in 109 ears, tinnitus was considerably ameliorated, in 35 ears, tinnitus was slightly ameliorated or no effect. One hundred and nine patients (138 ears) who had suffered from tinnitus were included in this study. Decadoron was applied to the middle ear cavity by transtympanic injection. Our results are summarized as follows: in 87 ears, tinnitus was abolished, in 39 ears, tinnitus was considerably ameliorated, in 14 ears, tinnitus was slightly ameliorated or no effect.
耳鸣是一种常见但难以治疗的耳科症状。如果耳鸣起源于耳蜗，那么可以合理推测，耳蜗功能的完全抑制将消除耳蜗性耳鸣。为实现这种抑制，对一名耳鸣患者进行了经鼓膜注射局部麻醉剂（4%利多卡因）以使内耳麻醉以及注射地塞米松的操作。本研究纳入了168例（220耳）患有相对长期耳鸣的患者。几乎在所有病例中，临床症状和耳科检查结果（即听力图和冷热试验）表明，耳鸣潜在的病变可能位于终器内。在某些情况下，这种注射会带来短暂的（持续数天）、轻微的低频感音神经性耳聋。然而，这种听觉障碍完全恢复且无后遗症。我们的结果总结如下：76耳耳鸣完全消失，109耳耳鸣明显改善，35耳耳鸣稍有改善或无效果。本研究纳入了109例（138耳）患有耳鸣的患者。通过经鼓膜注射将地塞米松应用于中耳腔。我们的结果总结如下：87耳耳鸣消失，39耳耳鸣明显改善，14耳耳鸣稍有改善或无效果。
