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本文报告514例各类听神经瘤完全切除术连续病例。其中399例(占病例总数的78％)取经迷路手术入路,115例(22％)取经乙状窦后手术入路,选择其中的94例占(18％)作为听力保留的实验者。其临床标准是:内听道外肿瘤最大直径1.5cm。功能听力小于或等于会话容许值(SRT)50分贝。会话辨别力评分(SDS)大于或等于60％。此94例中,26例为内听道神经瘤。术中通过耳蜗神经反应电位(CNAP)来监测术侧耳蜗神经功能,部分病例还进行了脑干听觉诱发电位监测。
This article reports 514 cases of various types of complete excision of acoustic neuroma cases. Among them, 399 (78% of the total cases) underwent labyrinthine approach and 115 (22%) underwent retrosigmoid sinus surgery. Ninety-four (18%) of them were selected as hearing reserve experimenters. The clinical criteria are: the maximum diameter of the tumor outside the sarcoma 1.5cm. Functional hearing is less than or equal to 50 dB of session tolerance (SRT). Session Discrimination Score (SDS) Greater than or equal to 60%. Of the 94 cases, 26 were internal optic neuromas. Intraoperative cochlear nerve response potential (CNAP) to monitor the operation side of the cochlear nerve function, in some cases also conducted brainstem auditory evoked potential monitoring.