摘要
作者采用经迷路-内听道-小脑幕联合入路切除30例大型听神经瘤。肿瘤全切除率达96.7％,无手术死亡。面神经解剖保留率为53.3％,功能保留率为36.7％。该入路的主要优点是:（1）进路直接,显露良好;②允分打开内听道;③手术后反应轻;（4）入路可灵活变通或改良。对于手术技巧,手术后并发症的防治和面神经保留等进行简要讨论。
In a series of 30 consecutive patients with large acoustic neuromas, all of which were larger than 4. 0 cm in diameter, tumor excisions were performed by a one stage combined translabyrinthine-transtentorial approach. The tumors were totally removed in 29 patients (96. 7%), no operative mortality. The facial nerve was preserved anatomically in 16 patients (53. 3% ) ,functionally in 11 patients (36. 7% ). The main adventages of this approach in clude:①direct approach with a more extensive exposure; ②enable identify both ends of the facial nerve at the brain stem and in the internal auditory meatus;③ minimally postoperative adverse reaction;④may be further combined with other approaches. A discussion has been made on operative technique, prevention of postoperative complications and facial nerve preservation.
