伽玛刀治疗听神经瘤疗效分析

目的探讨伽玛刀治疗听神经瘤的疗效。方法连续应用Leksell伽玛刀治疗92例听神经瘤。结果随访12-36个月。肿瘤生长控制率为93.5％（86／92），无死亡及严重并发症发生。在65例可评价病例中，听力保留38例，保留率58.5％。治疗后4～8周8例（8.7％，8.92）出现轻度周围性面瘫，半年后逐渐恢复；6例（6.5％，6.92）出现三叉神经受损症状，表现为面部麻木。6～12个月后恢复。结论伽玛刀治疗听神经瘤安全、有效，患者生存质量高。

Analysis of Curative Effect of Gamma-knife Radiosurgery on Acoustic Neuromas

Objective To investigate the curative effect of Gamma-knife on acoustic neuromas. Methods From April,1997 to April,2003,92 patients with acoustic neuromas underwent Leksell Gamma-knife treatment. Results All the patients were followed up from 12 to 36 months (mean,26.4 months). The tumor control rate was 93.5%. No patients died. No serious complications happened in all the patients. Out of the 65 patients who were assessable,38 kept hearing. The hearing preservation rate was 58.5%. Eight patients (8.7%,8/92) had the mild peripheral facial parlaysis from 4 to 8 weeks after the treatment,and they were recovered gradually half a year later. Six patients (6.5%,6/92) had the facial numbness due to damage to trigeminal nerve,and they were recovered 6 to 12 months later. Conclusion The treatment of acoustic neuromas with Gamma-knife is safe and effective. The quality of life is high in the patients with acoustic neuromas after gamma-knife radiosurgery.