Barajas J J, Olaizola F, Tapia M C, Alarcon J L, Alaminos D
Audiology. 1981;20(1):41-52. doi: 10.3109/00206098109072681.
The following clinical measurements of acoustic impedance were carried out successfully on 25 neonates. Average compliance was 0.48 cm3, with a range from 0.28 to 0.81 cm3. Tympanometry showed a high percentage of maximum compliance curves with positive pressures. In a notably high percentage, the stapedial reflex was combined with generalized body movements and was therefore considered a behavioural response. Behavioural responses of the child were also observed separately. Ipsilateral stimulation did not evoke a measurable stapedius reflex in any of the cases, but with contralateral stimulation some babies did show this reflex. The most intense behavioural responses occurred when white noise was used as the stimulus. Of the 25 children studied with impedance audiometry, 10 were evaluated audiologically by brain stem electric potentials. The latency of wave V was within the normal range in all the cases. Electric response audiometry could be a promising method for audiological evaluation of the neonate.
对25名新生儿成功进行了以下声阻抗临床测量。平均顺应性为0.48立方厘米，范围为0.28至0.81立方厘米。鼓室图显示，在正压下，最大顺应性曲线的比例很高。在相当高的比例中，镫骨肌反射与全身运动相结合，因此被认为是一种行为反应。还分别观察了儿童的行为反应。在任何病例中，同侧刺激均未诱发可测量的镫骨肌反射，但对侧刺激时，一些婴儿确实出现了这种反射。当使用白噪声作为刺激时，行为反应最为强烈。在接受阻抗测听法研究的25名儿童中，有10名通过脑干电位进行了听力学评估。所有病例中V波潜伏期均在正常范围内。电反应测听法可能是新生儿听力学评估的一种有前景的方法。
