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圆窗膜破裂、外淋巴瘘是否导致耳蜗实质性损害意见不一致。为阐明慢性外淋巴瘘对耳蜗的影响以及该条件下出现的感音聋的原因,选择了14只Preyer耳廓反射及前疫功能正常的豚鼠进行研究。1～12号豚鼠,麻醉后打开左耳听泡,在底转的鼓阶上,用细针钻一小孔,随后插入0.47mm的细管使造成持续性外淋巴瘘。右耳则作为对照组。13号豚鼠仅钻小孔,不插细管;14号豚鼠钻小孔后,插入细管随即
Circular window membrane rupture, external lymphatic fistula whether lead to substantive damage to the cochlear inconsistent views. To clarify the effect of chronic lymphatic fistula on the cochlea and the cause of deafness under this condition, 14 guinea pigs with auricle reflexes and normal preeclampsia were selected for study. Guinea pigs No. 1 to No. 12 were anesthetized and opened the left ear to hear the bubble. At the bottom of the drum, a small hole was drilled with a fine needle, followed by insertion of a 0.47-mm thin tube to cause a sustained perilymph fistula. Right ear as a control group. Guinea pigs No. 13 only drill holes, not inserted thin tube; 14 guinea pigs after drilling holes, insert thin tube immediately