摘要
目的 本实验提供了听觉脑干诱发电位( A B R) 的数据,旨在检测新生儿听力水平,为部分脑干疾患的诊断提供参考依据。方法 选取足月新生儿66 例,其中男36 例,女30 例。使用国产 N G T2 型诱发电位仪,用声强90 d Bn H L短声刺激引出 A B R。结果 正常新生儿( < 18 天) A B R 波型是Ⅰ、Ⅲ、Ⅴ波为主的连续波复合体。潜伏期、波间期男女之间无差异。Ⅴ波对Ⅰ波的比例大于10 。 A B R 阈值在30 ~60 d B。结论 正常新生儿 A B R Ⅰ、Ⅲ、Ⅴ潜伏期为205 ,496 ,705 ms ;波间期为288 ,222 ,501 ms。
Objective The test provided the physiological basis of A B E P. The goal wasto monitor hearing levelof the newborn babies and provided the reference basis forthe partly brainstem diseases . Methods The normalnewborn babies were 66 cases ,and the male and female were 30 cases and 38 cases respectively . Theinstru mentof N G T 2 type of A B R was used . The sound intensity was 98 d Bn H L(click) to stimulate evoking A B E P. Results The wave types of A B Rofthe newborn babies were continuous co mpound waves characterized by mainⅠ、Ⅲ、Ⅴwaves. The statisticalanalysis ofthe peak latencies (pl) and theinterpeak laencies ( I P L) showed thatthere was not difference between boy and girl,left and right ears . Wave Ⅴ/ wave Ⅰ> 1 0 . The thresholds ofhearing of A B R of the new born babies were from 30 ~60 d B. Conclusion The P Lof Ⅰ、Ⅲ、Ⅴwave is 2 05 ,4 96 , 7 05 ms,and the I P Lof Ⅰ~Ⅲ、Ⅲ~Ⅴ、Ⅰ~Ⅴis 2 88 ,2 22 ,5 01 msin the normal newborn babies( < 14 days) .
出处
《安徽医科大学学报》
CAS
1999年第4期274-275,共2页
Acta Universitatis Medicinalis Anhui
关键词
新生儿
ABR
听觉
脑干诱发电位
Me S H evoked potentials
auditory ,brain stem
infant ,newborn