中文摘要：

目的：观察耳鸣掩蔽疗法在早期噪声性听力损失伴耳鸣患者中的掩蔽效果,为临床该类耳鸣患者的治疗提供依据。方法：对68例早期噪声性听力损失伴耳鸣患者进行常规听力学检查和耳鸣检测,所有患者掩蔽治疗6个月后对其疗效进行比较分析。疗效评估采用耳鸣残疾评估量表及主观视觉模拟量表,测试比较其治疗前后的最小掩蔽声大小。结果：耳鸣检测结果显示该类患者的耳鸣主频绝大部分（59例,86.8%）为4kHz,残余抑制试验完全阳性者居多（44例,64.7%）,掩蔽治疗效果好,有效率达83.8%,其中3例耳鸣完全消失;治疗前后耳鸣残疾评估量表得分、主观视觉模拟量表得分和最小掩蔽声大小比较均差异有统计学意义（均P〈0.01）。结论：早期噪声性听力损失伴耳鸣患者的掩蔽治疗效果显著,值得推广。

英文摘要：

Objective： To explore the effect of masking therapy for the early stage of the patients with noise-in-duced tinnitus,and imply the treatment for patients with noise-induced tinnitus. Method：Sixty-eight cases with tinnitus were studied. All the patients took the audiological examinations and tinnitus tests firstly, and accepted the masking therapy for 6 months. The therapeutic effiency was evMuated according to tinnitus handicap inventory （THI） and subjective visual-analogue scale （VAS）. The minimum masking intensity was also evaluated. Result The majority of the patients with noise-induced tinnitus （59 cases, 86.8 %） had tinnitus frequency of 4 kHz, and most of them （44 cases, 64.7 %） had positive residual inhibition tests. Tinnitus completely disappeared in 3 eases after masking therapy, and the efficiency of this treatment is 83.8%. There was significant difference in the scoresof THI and VAS before and after therapy（P〈0.01）, and there was also significant difference in the minimum masking intensity （P〈0.01）. Conclusion： Masking therapy is the most important treatment for the patients in the early stage of noise-induced tinnitus. The therapeutic effiency is significant and should be promoted.