神经内镜辅助下显微手术治疗桥小脑角区病变

目的：总结在神经内镜辅助下经乙状窦后入路显微手术治疗桥小脑角区病变的经验并探讨其实用性及其优势．方法：对76例桥小脑角区病变采取神经内镜辅助经乙状窦后入路显微手术治疗．结果：25例听神经瘤全切并面神经解剖保留率100％，功能保留率92％；21例表皮样囊肿及8例脑膜瘤全切除；6例半面肌痉挛治愈；9例三叉神经痛术后发作性疼痛消失；7例Meniere病治愈．无术后并发症及死亡．结论：在神经内镜辅助下经乙状窦后入路显微手术治疗桥小脑角区病变，有利于保护小脑、脑干、神经和血管，减少并发症，降低手术风险性，提高手术疗效．

Neuroendoscope-assisted Microsurgery Treating Lesions in Cerebellopontine Angle

Objective： To discuss the practicality and advantages of the techniques treating the lesions in cerebeUopontine angle with neuroendoscope - assisted rnicroneurosurgery via retrosigmoid approach. Methods. Neuroendoseope - assisted microneurosurgery via retrosigmoid approach treating 76 cases of lesions in cerebellopontine angle. Results： 25 cases of acoustic neuromas were completely removed with＇ 100 % facial nerves anatomically preserved. Functional preservation rate was 92% .21 cases of epidermoid cyst and 8 cases of meningioma were totally removed. 6 cases of hemifacial spasm were cured. Postoperative paroxysmal pain disappeared in 9 cases of trifacial neuratgia. 7 cases of meniere were cured. No death and complication were found. Conclusion：Endoscope- assisted microsurgery treating lesions in cerebellopontine angle can reduce the damage to cerebellum, brainstem, blood vessels and nerves. At the same time this method can reduce complications ,operative risk and improve the operative effect.