Mjøen S, Qvigstad E
Scand Audiol. 1983;12(1):43-5. doi: 10.3109/01050398309076223.
Auditory brainstem response (ABR) has been recorded in 20 neonates at three different time intervals during the first 48 hours after birth. The first recording was performed about 15 min after delivery, when the babies were in their first period of postnatal reactivity. During this period, we were unable to obtain reliable ABR data. During the second and third ABR test performed 2 and 48 hours after birth the babies revealed gradually better responses. Data from these recordings suggest no significant change in middle ear function during the time interval between 2 and 48 hours after birth. Observations of amplitude ratio wave V/wave I are presented. Finally, reservations regarding the interpretation of the results are discussed.
在出生后的头48小时内，对20名新生儿在三个不同时间间隔进行了听觉脑干反应（ABR）记录。第一次记录在分娩后约15分钟进行，此时婴儿处于出生后反应的第一阶段。在此期间，我们无法获得可靠的ABR数据。在出生后2小时和48小时进行的第二次和第三次ABR测试中，婴儿的反应逐渐变好。这些记录的数据表明，出生后2至48小时的时间间隔内，中耳功能没有显著变化。给出了波V/波I振幅比的观察结果。最后，讨论了对结果解释的保留意见。
