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为探讨听神经瘤手术切除经验 ,提高肿瘤全切率和面、听神经保留率 ,本研究回顾性分析枕下 -乙状窦后入路 4 8例听神经瘤显微手术 ,并对手术要点、肿瘤大小与肿瘤全切率和面、听神经保留率之间的关系进行了讨论。如果 13例小于 2cm的肿瘤均全切 ,18例 2～ 4cm的肿瘤 ,全切 16例 ,17例大于 4cm的肿瘤 ,仅 10例全切。肿瘤全切除率 81 3% (39/ 4 8) ,面神经解剖保留率 77 1% (37/ 4 8) ,功能恢复率 6 6 7% (32 / 4 8) ,术前有听力者听神经保留率 52 3% (11/ 2 1)。作者认为肿瘤大小与肿瘤全切率及面、听神经保留率密切相关。应用显微外科技术、采取正确的肿瘤切除方法 ,是提高听神经瘤手术切除率和面、听神经解剖保留率的关键。
In order to explore the experience of surgical resection of acoustic neuroma and improve the rate of total resection and facial nerve preservation, this study retrospectively analyzed the microsurgery of 48 cases of acoustic neuroma after suboccipital-sigmoid sinus posterior approach. The operative points, tumor size The relationship between tumor resection rate and surface and auditory nerve retention was discussed. If all 13 tumors less than 2 cm were resected, 18 patients with 2 to 4 cm tumors were completely resected in 16 patients and 17 patients larger than 4 cm in size. Only 10 patients underwent total resection. The total tumor resection rate was 81.3% (39/48), the facial nerve anatomy retention rate was 77.1% (37/48) and the functional recovery rate was 66.7% (32/48). The hearing retention rate 52 3% (11/2 1). The authors believe that tumor size and tumor resection rate and surface, the rate of preservation of the auditory nerve is closely related. The application of microsurgical techniques to take the right tumor resection method is to improve the surgical resection rate of acoustic neuroma and surface, auditory nerve retention retention rate of the key.