Smyth G D, Kerr A G
J Otolaryngol. 1976 Oct;5(5):364-70.
An investigation was undertaken to determine what factors improve or worsen bone conduction thresholds following treatment of labyrinthine fistula produced by cholesteatoma. It is suggested that closure of the fistula and reconstruction of normal sound transmitting pathways by ossicular reconstruction produce a favorable mechanical situation to produce this response. In addition there remains the possibility that removal of cholesteatoma matrix may prevent a toxic degeneration of the cochlea at the site of the fistula. Therapy advocated is a two stage combined approach tympanoplasty.
进行了一项调查，以确定在治疗胆脂瘤引起的迷路瘘管后，哪些因素会改善或恶化骨导阈值。有人认为，通过听骨链重建封闭瘘管并重建正常的声音传导途径，会产生有利于产生这种反应的机械状况。此外，清除胆脂瘤基质仍有可能防止瘘管部位的耳蜗发生毒性退变。提倡的治疗方法是两阶段联合鼓室成形术。
