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听觉脑干反应(ABR)广泛地用于临床对新生儿及婴幼儿听敏度的评价。在50～60周(指孕龄加生后周龄)及早发现听觉异常有重要的意义,但婴儿在生后6个月内听力状况很不稳定,所以在测试潜伏期时首先应考虑排除各种影响因素,选用比较稳定的参量。作者对妊娠后周龄为48～64周的71名正常男婴和60名正常女婴的各波潜伏期参量进行了研究,发现波Ⅰ不受周龄或性别的影响,而波Ⅲ、波Ⅴ随周龄增加呈线性减少,女婴减少的小些;男婴Ⅰ、Ⅲ、Ⅴ各波每周龄分别减少0.1、0.22、0.24ms,女婴则每周龄分别减少0.1、0.16、
Auditory brainstem response (ABR) is widely used in clinical evaluation of neonatal and infant hearing sensitivity. In 50 to 60 weeks (refer to gestational age plus weeks after the age) early detection of abnormal hearing is important, but the baby 6 months after birth, hearing is unstable, so the first test of latency should be considered to exclude all Influencing factors, the choice of more stable parameters. The authors studied the wave latency parameters of 71 normal and 48 normal infants from 48 to 64 weeks of gestation, and found that wave I was not affected by age or gender, whereas wave III, wave V With the increasing of the week-old linear decrease, the reduction of the baby girls is smaller; The boys I, III and V reduce by 0.1,0.22,0.24ms per week respectively, while the baby girls reduce by 0.1,0.16 week per week,