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慢性外淋巴瘘是耳硬化镫骨切除术后合并症,可继发脑膜炎、永久性听力丧失、眩晕、耳鸣等症状,因此早期发现瘘管及修补瘘管非常重要。镫骨切除术后如听力不但没有增进反而出现耳鸣、眩晕、耳胀等症状,首先应考虑存在外淋巴瘘的可能性,但这些症状与内淋巴积水酷似,难以鉴别,往往需进行鼓室探查看到前庭窗内有清亮液体外溢时外淋巴瘘的诊断才能成立,但瘘管的确切部位经常不能看清,著者介绍一种新的检查方法。
Chronic external lymphatic fistula is a complication of otomy after otorotomy, secondary to meningitis, permanent hearing loss, dizziness, tinnitus and other symptoms, so the early detection of fistula and fistula repair is very important. Tarsus resection, such as hearing not only did not improve, but tinnitus, dizziness, ear swelling and other symptoms, we should first consider the possibility of external lymphatic fistula, but these symptoms and endolymphatic hydrops are similar, difficult to identify, often require tympanometry To see the vestibular window clear liquid overflow when the diagnosis of external lymphatic fistula to set up, but the exact location of the fistula can often not see, the author introduces a new method of examination.