术前佩戴助听器对人工耳蜗植入术后NRT阈值及T值、C值的影响  

The Effect of Hearing Aids before Cochlear Implantation on Postoperative Neural Response Telemetry(NRT)Threshold Values,the Subjective Threshold(T-level)and Maximal Comfort level(C-level)

作　　者：王俊[1] 孙家强[1] 孙敬武[1] 张波[1] 

机构地区：[1]安徽医科大学附属安徽省立医院耳鼻咽喉头颈外科,合肥230001

出　　处：《听力学及言语疾病杂志》2015年第1期66-68,共3页Journal of Audiology and Speech Pathology

摘　　要：目的研究术前佩戴助听器对人工耳蜗植入术后神经反应遥测值(NRT)以及T值(the subjective threshold,T-level)、C值(maximal comfort level,C-level)的影响。方法 45例单耳人工耳蜗植入患者按术前是否佩戴助听器及开始佩戴助听器的年龄分为3组,HA1组(n=17)为术前佩戴助听器大于6个月且佩戴年龄小于3.5岁,HA2组(n=8)为术前佩戴助听器大于6个月且佩戴年龄大于3.5岁,NHA组(n=20)为未佩戴助听器组,比较各组术后电极阻抗值和3、6、12个月的NRT值及T值、C值的差异。结果 NHA、HA1和HA2三组术后电极阻抗值均值分别为10.9±2.1、10.5±2.3、10.7±2.7kΩ,三组间差异无统计学意义。除了术后12个月时的C值外,HA1组术后3、6、12个月时的NRT阈值及T值、C值均较NHA组低(P<0.05或0.01),术后3、6、12个月时,HA1组三项均值均较HA2组低(P<0.05),而HA2组与NHA组三项均值差异均无统计学意义(P>0.05)。结论术前早期(小于3.5岁)佩戴助听器患儿人工耳蜗植入术后NRT、T值及C值均较术前未佩戴助听器组低。Objective The aim of this study is to explore the significance of fitting hearing aids before cochle_ar implantation by studying the postoperative impact on neural response telemetry （NRT ） threshold ,the subjective threshold（T -level） and maximal comfort level（C-level） values .Methods A total of 45 patients with cochlear im_plants were divided into 3 groups：patients in group HA1（n=17）had worn hearing aids preoperatively more than 6 months and the age of starting wearing hearing aids was yonger than 3 .5 years old ,patients in group HA2（n=8） had worn hearing aids preoperatively more than 6 months and the starting age was older than 3 .5 years old ,patients in group NHA（n=20 ）never wore hearing aids before ACI .The postoperative electrode impedance ,NRT value and T -level and C -level were evaluated at 3rd ,6th ,and 12th months ,respectively .ResuIts Electrode impedances were 10 .9 ± 2 .1 kΩ in NHA group ,10 .5 ± 2 .3 kΩ in HA1 group ,10 .7 ± 2 .7 kΩ in HA2 group ,respectively ,and there were no statistically significant differences .Significant differences were found between group HA1 and group NHA ,group HA1 and group HA2 in terms of NRT threshold value ,T -level or C-level（P〈0 .05） .There were no statistically significant differences between group HA2 and group NHA with respect to NRT threshold values ,T-level as well as C-level（P〉0 .05） .ConcIusion The results of this study showed that wearing hearing aids for a longer time before CI was beneficial for hearing rehabilitation postoperatively .

关 键 词：人工耳蜗植入 助听器 神经反应遥测 

分 类 号：R764.5[医药卫生—耳鼻咽喉科]