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本文复习了特发性Bell氏麻痹的各种治疗后,介绍鼓室内注入皮质激素获得良好效果。根据既往颞骨解剖的研究和中耳手术时显微镜下观察发现,面神经鼓室段自然暴露者约50—55％。另外鼓索自面神经垂直段距茎乳孔1—10.9毫米处(75％距茎乳孔>3毫米,6％<1毫米)分出,直接暴露于中耳。因此作者认为在鼓室内注入皮质激素类药物可以直接作用于面神经,较之全身用药更为直接有效,使病变的神经消肿消炎,促进恢复功能。
After reviewing various treatments for idiopathic Bell’s palsy, this article describes the good effects of injecting corticosteroids in the tympanic cavity. According to the previous study of temporal bone anatomy and middle ear surgery under the microscope, we found that the facial nerve tympanic segment of the natural exposure of about 50-55%. In addition, the vertical section of the facial nerve is separated from the stylomastoid foramen ovale at 1 to 10.9 mm (75% from the stylomastoid foramen> 3 mm, 6% <1 mm) and exposed directly to the middle ear. Therefore, the authors believe that injection of corticosteroids in the tympanic cavity can act directly on the facial nerve, compared with the systemic drug more direct and effective, so that lesions of nerve swelling inflammation, promote recovery.