听神经瘤分期及治疗效果分析

目的探讨听神经瘤分期方法及其与手术效果的关系。方法回顾分析1999～2003年收治的109例听神经瘤病例，按肿瘤大小分为1～5期，3例采用观察方法，106例分别采用扩大迷路进路、乙状窦后进路及颅中窝进路等手术治疗，根据肿瘤切除程度、面神经功能保留程度、听力保留程度等评估手术结果。结果肿瘤全切率为95％(101／106)；面神经保留率96％（102／106)，迷路进路或扩大迷路进路患者面神经功能优良率(1～2级)为56％，可接受率(1～4级)为86％：听力保存率为42％。结论听神经瘤的统一分期可以帮助选择治疗方案、评估手术效果，对临床治疗工作有重要指导意义。

Classification of acoustic neuroma size and its relations to the treatment outcomes

OBJECTIVE To evaluate the classification of acoustic neuroma size and its relations to the treatment outcomes. METHODS 109 acoustic neuromas which were treated between 1999-2003 were analyzed. The tumors were classified into 1 ~5 stages according to its largest diameter. Some cases were observed with MRI follow-up. Three approaches were used in this series, including trans-labyrinthine approach, middle fossa approach and retro-sig-moid approach. RESULTS Total tumor removal was achieved in 95 % cases. The facial nerves were preserved in 102 cases, The interruption of nerve occoured in 4 cases. The hearing was preserved in 42 % cases. CONCLUSIONS The classification of acoustic neuroma could help in deciding the treatment strategy, evaluating the treatment outcomes and comparing the data from different centers.