近20年来由于诊断工具的改进和手术技术的进步,对听神经瘤手术有了明显提高,不但死亡率降低到5%以下,而且还表现在不损伤面神经及保存一定有用的听力。但有关的许多问题,如:①保存一定听力是否有价值?②为了保存听力是否增加了并发病和肿瘤复发?以及③颅后凹与颅中凹进路那种方法较好,还有待进一步研究。本文报导Mayo医院在1978～1983年五年半期间对听神经瘤采用颅后凹进路手术摘除149例(151耳)的术后总结,其中15耳术前全无听力,17耳术前未记录,故文章只分析术前都有一定听 Over the past 20 years due to the improvement of diagnostic tools and surgical advances, the operation of acoustic neuroma has been significantly improved, not only to reduce the mortality rate below 5%, but also in the facial nerve is not damaged and save useful hearing. However, many related issues, such as: ① preservation of hearing is valuable? ② in order to save the hearing increases the incidence and recurrence of tumors? And ③ cranial recess and recess in the skull that the method is better, yet to be further studied . This article reports the postoperative summary of 149 cases (151 ears) of Mayo Hospital during the five-and-a-half years from 1978 to 1983 in the treatment of acoustic neuroma with cranial recess. There were no hearing before 15 ears and 17 ears before surgery , So the article only analysis of preoperative have a certain listen