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由于CT、磁共振成像技术、听觉脑干电反应(ABR)的应用,以及对听神经瘤的早期诊断的重视,十年来,听神经瘤的诊治方面有了一些变化。作者将1969～1985年间诊为桥小脑(CP)角肿瘤的616例患者中的前、后各100例进行对比。Ⅰ组100例系1969年12月至1975年10月接受手术者。当时术前仅做常规听力、岩尖平片和后颅窝造影检查。100例中听神经瘤96例。男37,女59;平均年龄47.6±12.7岁;病变部位,左46例,右50例。初诊前症状持续时间为3.3±4.8年。术前纯音测试平均为64±33dB,语言辨別率为35±35％,肿瘤大小平均为2.79±1.5
Due to the application of CT, magnetic resonance imaging, auditory brainstem electrical response (ABR), and attention to the early diagnosis of acoustic neuroma, there have been some changes in the diagnosis and treatment of acoustic neuromas in the past decade. The authors compared 100 cases of 616 patients with cervicocerebral (CP) keratoconus between 1969 and 1985 before and after each case. 100 patients in group I received surgery from December 1969 to October 1975. At the time, only routine hearing, petrous plain films, and posterior fossa imaging were performed before surgery. 100 cases of acoustic neuroma in 96 cases. Male 37, female 59; mean age 47.6±12.7 years; lesion site, left 46 cases, right 50 cases. The duration of symptoms before the first visit was 3.3±4.8 years. The average preoperative pure tone test was 64±33dB, the language discrimination rate was 35±35%, and the average tumor size was 2.79±1.5.