聋儿短声ABR“Ⅴ”潜伏期-强度函数的大小与听力图构型关系的研究  

The relationship between the latency-intensity function of click ABR wave V and the audiogram configuration

作　　者：宋戎[1] 陶征[1] 

机构地区：[1]中国聋儿康复研究中心,北京100029

出　　处：《临床耳鼻咽喉头颈外科杂志》2015年第10期959-962,共4页Journal of Clinical Otorhinolaryngology Head And Neck Surgery

摘　　要：目的：通过分析不同聋儿的短声ABR＂V＂波的潜伏期-强度函数（LIF）存在较大差异的原因,探讨依据LIF来预测听力图构型的可能性。方法：按照LIF数值的大小将其分为改变明显组和不明显组,并分别测试这些聋儿的短纯音ABR,根据短纯音ABR的结果来分析短声＂V＂波LIF出现差异的原因;同时记录正常幼儿组的结果作为对照。结果：明显组和不明显组的LIF值分别为（56.00±21.81）μs/dB和（16.53±6.73）μs/dB;他们的短纯音ABR 0.5~4.0kHz 4个测试频率的阈值分别为（65.00±7.32）、（68.13±6.55）、（70.63±6.80）、（78.12±8.34）dB和（93.13±7.04）、（79.37±7.72）、（69.38±8.54）、（66.25±8.06）dB。结论：聋儿短声ABR＂V＂的LIF数值较大者均为平坦或下降型听力损失,而较小者均为上升型听力损失,在1.0kHz尤其0.5kHz处听力明显比高频听力差。因此可以根据聋儿短声ABR＂V＂波LIF的大小来预测其听力图构型。Objective：The latency-intensity function （LIF） of wave V from click ABR of some deaf children showed great variation. We attempted to find out the intrinsic reasons. Method：The children recieved tone-burst ABR test. Result：Frequencies from 0.5-4.0 kHz have heen tested and the thresholds of tone-burst ABR were re- corded. The average thresholds of steeply LIF children at 0.5-4.0 kHz were （93.13±7.04）, （79.37±7.72）, （69.38±8.54）, （66.25±8.06） dB respectively, while the average thresholds of shallower LIF children at these 4 frequencies were （65.00±7.32）, （68.13±6.55）, （70.63±6.80）, （78.12±8.34） dB respectively. Conclusion：The results imply that the child with steeply LIF may have more hearing loss at frequencies 0. 5 and 1 kHz than those with shallower LIF. LIF may predict the audiogram configuration.

关 键 词：听性脑干反应 短声 短纯音 潜伏期-强度函数 

分 类 号：R764.43[医药卫生—耳鼻咽喉科]