Edwards C G, Durieux-Smith A, Picton T W
Ear Hear. 1985 Jul-Aug;6(4):175-8. doi: 10.1097/00003446-198507000-00001.
Ipsilateral and contralateral auditory brain stem responses were recorded from both ears of 10 neonates between 37 and 43 weeks from conception with normal auditory brain stem function. The most prominent component of the contralateral response was a forehead positive deflection occurring 0.3 millisecond before the ipsilateral wave III followed by two forehead negative waves, the latter present at the same latency as the ipsilateral wave V. The amplitude of the contralateral response was small: at 30 dB nHL only 7 of the 20 ears showed clear responses from this montage. The morphology of the neonatal contralateral response is thus considerably different than the ipsilateral, unlike the adult. A neonate could be mistakenly diagnosed as hearing impaired or neurologically involved if the interpretation is based on the contralateral recording.
对10名孕龄在37至43周、听觉脑干功能正常的新生儿双耳记录了同侧和对侧听觉脑干反应。对侧反应最显著的成分是一个额部正向偏转,出现在同侧波III之前0.3毫秒,随后是两个额部负向波,后者与同侧波V的潜伏期相同。对侧反应的幅度较小:在30 dB nHL时,20只耳中只有7只从该记录导联显示出清晰的反应。因此,新生儿对侧反应的形态与同侧有很大不同,与成人不同。如果基于对侧记录进行解读,新生儿可能会被误诊为听力受损或神经受累。