耳蜗死区与言语分辨率相关性研究

Correlation study between the cochlea dead regions and the words recognition score

目的本研究采用阈值均衡噪声检测法探索感音神经性聋患者中耳蜗死区的存在情况,并通过言语测听分析患者在言语分辨能力上是否有差异。方法采用阈值均衡噪声检测法及言语测听检测62例(93耳)感音神经性聋患者,对其进行耳蜗死区与言语分辨率相关性分析。结果62例(93耳)患者中,无耳蜗死区组(NDR)47耳,有耳蜗死区46耳,其中有一个或两个频率存在耳蜗死区组(SDR)有27耳,有3个或3个以上频率存在耳蜗死区组(LDR)有19耳;NDR组、SDR组和LDR组各测试频率平均纯音听阈分别为65.74±11.07d B、64.70±7.03d B、75.57±15.04d B。NDR组、SDR组、LDR组平均言语分辨率(WRS)分别为91.98±3.42%,88.93±2.79%,62.21±10.39%,经统计学检验,三组之间两两比较差异均有统计学意义。结论存在多个耳蜗死区组的纯音听阈较无耳蜗死区组升高,且该组言语分辨率明显低于无耳蜗死区组,推测耳蜗死区是影响言语分辨能力的一个重要因素。

Objective To investigate the distribution of presbycusis with cochlear dead regions, and analysis the speech audiometric in patients with speech discrimination ability. Methods 62 cases（93 ears） were detected by Threshold Equalizing Noise detection and speech detection. Results 62 cases（93 ears） patients, no cochlea dead regions group（NDR）47 ears, there are 46 ears with cochlea dead regions, including the existence of one or two frequency cochlea dead regions group（SDR） 27 ears, three or more than three frequency of c cochlea dead regions group（LDR） 19 ears; NDR group, SDR group and the LDR group each test frequency average pure tone audiometry were 65.74± 11.07 d B, 64.70±7.03 db with an,75.57 ± 15.04 d B. The average Words Recognition Score（WRS） of NDR group, SDR group and LDR group were 91.98 ＋3.42%, 2.79% ＋ 62.21, 88.93 ＋ 10.39%, respectively, and the difference was statistically significant between the three groups. Conclusions The presence of multiple cochlea dead regions group of pure tone audiometry is no cochlea dead regions group increased and the sets of words the resolution was significantly lower than that in the group without cochlea dead regions, suggesting that cochlea dead regions is the effect of speech discrimination ability is one of the important factors.