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目的：探讨利多卡因联合天麻素耳后注射治疗特发性耳鸣的疗效。方法将特发性耳鸣患者90例分为治疗组和对照组。治疗组采用两种方法同时进行，第一种方法为营养神经、改善内耳血液循环的药物静脉滴注，另一方法为2％利多卡因联合天麻素耳后注射治疗；对照组只采用第一种方法治疗。一个疗程时间均为14 d，全部患者均随访3个月以上。结果治疗组和对照组总有效率分别为84．44％和55．56％，3个月后随访，分别为82．22％和55．11％，两次统计差异均有统计学意义（P ＜0．05）。所有患者均未发现药物不良反应。结论2％利多卡因联合天麻素耳后注射治疗特发性耳鸣有确切疗效，操作简便，无不良反应。“,”Objective To explore the clinical efficacy of lidocaine combined with retroauricular injection of gastrodine in the treatment of idiopathic tinnitus.Methods A total of 90 cases of idiopathic tinnitus were randomly divided into treatment group and control group.The treatment group was treated by two simultaneous methods.The first method used intravenous drip of drugs to nurture nerves and to improve blood circulation in the inner ear.The other one was to combine 2% lidocaine with retroauricular injection of gastrodine.The control group received the first treatment only. One course of treatment lasted for 14 d.All patients were followed up for 3 months.Results The total efficacy of treatment group and control group was 84.44% and 55.56%,respectively.After 3-month of follow-up,the total effi-cacy of treatment group and control group was 82.22% and 55.11%,respectively.There was statistical difference between the statistics (P <0.05).No obvious adverse effects were observed.Conclusion Combination of 2% lido-caine and gastrodine injection is simple and effective in the treatment of idiopathic tinnitus.