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目的探讨慢性非胆脂瘤中耳炎引起的耳蜗瘘管的病因、临床表现、诊断和手术处理。方法结合文献复习,回顾性分析1例非胆脂瘤中耳炎引起的耳蜗瘘管。结果非胆脂瘤中耳炎所致的耳蜗瘘管骨导下降不明显,无眩晕,瘘管实验为阴性。瘘口骨内膜完整,术后骨导均仅有轻度下降。结论机械因素可能不是骨质破坏的必要因素,术前研究全系列高分辨率图像有利于避免漏诊耳蜗瘘管,应尽量清除瘘口的病变上皮或肉芽,通过仔细操作能够保存耳蜗功能。
Objective To investigate the etiology, clinical manifestation, diagnosis and surgical treatment of cochlear fistula caused by otitis media with chronic non cholesteatoma. Methods Combined with the literature review, one case of otitis media caused by otitis media was analyzed retrospectively. Results Non-cholesteatoma caused by otitis media cochlear fistula decreased bone conduction was not obvious, no vertigo, fistula test was negative. Fistula endosteal integrity, postoperative bone conduction were only slightly decreased. Conclusions Mechanical factors may not be necessary for bone destruction. Preoperative study of a full range of high-resolution images is helpful to avoid misdiagnosis of the cochlear fistula, removal of the diseased epithelium or granulation of the fistula as much as possible and preservation of cochlear function through careful manipulation.