Electrocochleographic findings in recurrent idiopathic sudden sensorineural hearing loss
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摘要: 结论:复发性和非复发性特发性感音神经性突聋(iSSNHL)的耳蜗电图(ECochG)的主要差异在于,非复发性iSSNHL的动作电位(AP)恢复(iR)异常增加,而在复发性iSSNHL中iR增加的发生率较低。对复发性iSSNHL有利的预后因素有:SP/AP增加,AP阈值降低,初诊时听力损失轻,渐升型听力图。目的:本研究拟探讨复发性和非复发性iSSNHL的ECochG差异以及影响预后的因素,并分析它们对复发性iSSNHL听力结局的影响。方法:复发性(23耳)和非复发性(42耳)iSSNHL分别接受了经鼓膜ECochG检查。采用成对短声刺激测量AP恢复。分析复发性和非复发性iSSNHL的ECochG差异以及影响预后的因素,以及对听力结局的影响。结果:非复发性iSSNHL中iR的出现比复发性iSSNHL明显增加(16耳vs 1耳)。在复发性iSSNHL中,SP/AP增加、AP阈值降低、初诊时听力损失轻、渐升型听力图在治愈组的发生率比好转组和无效组明显升高。
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