不同年龄正常听力新生儿和婴幼儿听性脑干反应波潜伏期分析

发布时间：2019-01-24 13:35

【摘要】：目的探讨不同年龄正常听力新生儿和婴幼儿听性脑干反应(ABR)波潜伏期的特点及变化规律。方法对145例(290耳)听力正常新生儿和婴幼儿进行ABR测试,按以下年龄段分组:1~7天龄组13例26耳,30~59天龄组17例34耳,2~4月龄组20例40耳,5~7月龄组19例38耳,8~10月龄组17例34耳,11~13月龄组18例36耳,14~16月龄组12例24耳,17~19月龄组13例26耳,20~24月龄组16例32耳。另设18~25岁正常青年人20例40耳作为对照组。观察各组各波潜伏期及波间期的变化特征。结果在70dB nHL click声刺激下,不同月龄的听力正常新生儿和婴幼儿波Ⅰ、Ⅲ、Ⅴ潜伏期及波间期均随月龄增大而逐渐缩短,5~7月龄组的波Ⅰ、8~10月龄组的波Ⅲ、17~19月龄组的波Ⅴ潜伏期与对照组差异无统计学意义(P0.05)、Ⅰ-Ⅲ、Ⅰ-Ⅴ波间期分别在8~10、17~19月龄时接近正常青年人水平(P0.05),但Ⅲ-Ⅴ波间期至20~24月龄时仍较正常青年人延长(P0.05)。结论正常听力新生儿和婴幼儿ABR测试结果与其听觉系统的发育成熟程度有关,其结果应根据不同月龄进行修正,不能直接以成人的正常值作为正常标准。
[Abstract]:Objective to investigate the characteristics and changes of auditory brainstem response (ABR) latency of normal newborns and infants at different ages. Methods ABR tests were performed on 145 newborns and infants with normal hearing. According to the following age groups, 13 cases (26 ears), 17 cases (34 ears), 20 cases (40 ears) and 19 cases (38 ears) were divided into 7 days old group, 30 and 59 days old group, 20 cases and 40 ears of 24 months old group, and 19 cases and 38 ears in 5 and 7 months old group, respectively. There were 17 cases (34 ears) in 10 months old group, 18 cases (36 ears) in 11 and 13 months group, 12 cases (24 ears) in 14 and 16 months group, 13 cases (26 ears) in 1719 months group and 16 cases (32 ears) in 20 and 24 months group. Another 20 cases and 40 ears of normal young people aged 18 ~ 25 years were used as control group. The changes of latency and interphase were observed. Results the latency and interval of wave 鈪，

本文编号：2414522