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描述内窥镜在耳科和耳神经外科应用的适应证、方法及局限性。二期乳突根治术:8例患者,均因胆脂瘤曾行乳突根治外耳道成形术,二期手术内窥镜检查有否胆脂瘤残留或复发。于耳后做1cm切口,钻开乳突皮质,用2.7mm和4mm0~°和30~°内窥镜进入乳突腔、鼓窦和上鼓室。发现胆脂瘤残留3例,其中1例经内窥镜下切除,2例行标准的二期根治术。8例内窥镜发现与后来显微镜手术所见一致。内窥镜增加了病灶的能见度,在常规耳科手术时,内窥镜发现3例显微镜下不能窥见的上鼓室、咽鼓管胆脂瘤和上鼓室硬脑膜小破损。
Describe indications, methods, and limitations of endoscopic applications in otology and otic neurosurgery. Second stage mastoidectomy: 8 patients were due to cholesteatoma had radical mastoidectomy, two endoscopic cholesteatoma whether there is residual or recurrence. After the ear to do 1cm incision, open the mastoid cortex, with 2.7mm and 4mm0 ~ ° and 30 ~ ° endoscope into the mastoid cavity, the sinuses and the tympanic cavity. Cholesteatoma was found in 3 cases, of which 1 case underwent endoscopic resection, 2 cases of standard two radical mastectomy. Eight cases of endoscopy were found consistent with subsequent microsurgical procedures. Endoscopy increased the visibility of the lesion. During the conventional otology surgery, 3 cases of small tympanic membrane damage in the upper tympanic cavity, eustachian tube cholesteatoma and upper tympanic cavity were found in the endoscope.