Yi X
Union Hospital, Tongji Medical University, Wuhan.
Zhonghua Er Bi Yan Hou Ke Za Zhi. 1991;26(2):80-2, 125.
The acoustic stapedius reflex, which normally occurs at a hearing level of about 85 dB, can be detected at lower levels by means of sensitization. The technique is to apply reflex-eliciting tone and the facilitating tone stimulation. The high-frequency acoustic stapedius reflex can then be detected in this procedure under low-frequency facilitating. When hearing is normal, significant difference can be demonstrated between conventional and facilitated reflex threshold. There is a great amount of reflex threshold improvement with sensitization. Sensorineural hearing loss allowed small or no reflex threshold change with sensitization.
镫骨肌声反射通常在约85分贝的听力水平时出现，通过敏化作用可在较低水平检测到。该技术是施加诱发反射的纯音和易化纯音刺激。然后在低频易化的情况下，在此过程中可检测到高频镫骨肌声反射。听力正常时，传统反射阈值和易化反射阈值之间可显示出显著差异。敏化可使反射阈值有很大改善。感音神经性听力损失患者经敏化后，反射阈值变化很小或无变化。
