Jiang Ze D, Shao Xiao M, Wilkinson Andrew R
Children's Hospital, Shanghai Medical University, Shanghai, People's Republic of China.
Acta Otolaryngol. 2005 Feb;125(2):163-8. doi: 10.1080/00016480410017684.
No abnormalities, with the exception of maturational changes, in BAER were found during the neonatal period. The results suggest that a temporary low Apgar score is not accompanied by any significant auditory impairment.
To examine brainstem auditory function in newborn infants with a temporary low Apgar score but no clinical signs of hypoxic-ischaemic encephalopathy (HIE).
The subjects were 36 full-term infants with Apgar scores of < or =7 at 1 and/or 5 min and > or =8 at 10 min but without HIE. The brainstem auditory-evoked response (BAER) was serially recorded at click rates of 21, 51 and 91/s on Days 1, 3, 5, 7 and 30 after birth.
On Day 1 and Days 3-5, the latencies of waves I, III and V tended to increase slightly at all click rates but did not differ significantly from normal control values. Thereafter, all latencies tended to decrease, reaching control values on Day 30. The I-V interval was similar to the control values at all click rates during the first 5 days, tended to decrease from Day 7 and did not differ from the control values on Day 30. There were no significant changes in BAER wave amplitudes at any of the click rates on any day.
在新生儿期，除成熟变化外，未发现脑干听觉诱发电位（BAER）有异常。结果表明，暂时性低Apgar评分并不伴有任何明显的听觉损害。
研究出生时Apgar评分暂时较低但无缺氧缺血性脑病（HIE）临床体征的新生儿的脑干听觉功能。
研究对象为36名足月儿，其出生1分钟和/或5分钟时Apgar评分≤7分，10分钟时≥8分，但无HIE。在出生后第1、3、5、7和30天，以每秒21、51和91次的点击率连续记录脑干听觉诱发电位（BAER）。
在出生第1天以及第3至5天，所有点击率下波I、III和V的潜伏期均有轻微增加趋势，但与正常对照值无显著差异。此后，所有潜伏期均呈下降趋势，在第30天达到对照值。在前5天，所有点击率下的I-V间期与对照值相似，从第7天开始呈下降趋势，在第30天与对照值无差异。在任何一天的任何点击率下，BAER波幅均无显著变化。
