80例听阈正常的婴儿BAEP结果分析

摘要

目的：分析80例V波反应听阈正常的婴儿脑干听觉诱发电位(BAEP)的结果，探讨婴儿正常值与成人的差异以及性别、左右耳对BAEP结果的影响。方法婴儿共80例（160耳），年龄3～12个月，平均4.3个月；成人共65例(130耳)，年龄18～67岁，平均35.6岁，均行BAEP检查。分析在80 dB声强刺激下I、Ⅲ、V波潜伏期(PL)，I一Ⅲ、Ⅲ一V、I—V波峰间期(IPL)。结果Ⅲ、V波潜伏期及I一Ⅲ、Ⅲ～V、I—V波峰间期婴儿组较成人组明显延长，差异有统计学意义(P<0．05)；I波潜伏期两组间无明显差异(P>0．05)。婴儿组内性别间、左右耳间无明显差异(P>0．05)。结论与成人比较，婴儿III、V波潜伏期及I一Ⅲ、Ⅲ一V、I—V波峰间期相对延长。性别、左右侧耳对BAEP结果亦无显著性影响。提示婴儿听觉传导通路发育不完全，以髓鞘发育差距尤为明显。%Objective To analyze the brainstem auditory evoked potential (BAEP) results of 80 cases of infants with normal wave V response auditory threshold, and to explore the differences of normal value between infants and adults , and the effect of gender and left&right ears on the results of BAEP. Methods A total of 80 infants (160 ears), aged from 3 to 12 months, an average of 4.3 months; a total of 65 adults (130 ears), aged from 18-67 years, an average of 35.6 years, all the 145 cases received BAEP examination. To analyze the peak latency (PL) of I, III, V waves, and the interval peak latency (IPL) of I-Ⅲ,Ⅲ-V, I-V waves under the sound intensity stimulation of 80 dB. Results The PL of I, III, V waves and the IPL of I-Ⅲ, Ⅲ-V, I-V waves in infant group were obviously extended than those in adult group, and the difference was statistically significant (P<0.05); while there was no significant difference between the two groups in the PL of I wave (P>0.05). And also, there was no significant difference between the gender and the left&right ears in infant group (P>0.05). Conclusion Compared with adults, the PL of I, III, V waves and the IPL of I-Ⅲ, Ⅲ-V, I-V waves in infant group are relatively prolonged. There is no significant effect of gender and the left & right ears on the BAEP results. The results suggested that the development of auditory conduction pathway of infant is not complete, especially in the development of Myelin sheath.