Ichiyama T, Hayashi T, Furukawa S
Department of Pediatrics, Yamaguchi University School of Medicine, Japan.
Brain Dev. 1995 Jan-Feb;17(1):49-51. doi: 10.1016/0387-7604(94)00105-7.
Bilateral recordings of brainstem auditory evoked potentials obtained on monaural stimulation were studied in 147 normal subjects, aged 0 days to 21 years. We analyzed contralateral (opposite side to stimulation) wave forms in particular. The latencies of the contralateral wave II' and III' complex were shorter than those of ipsilateral wave III. The latencies of wave V on the ipsilateral side were shorter than those on the contralateral side. The contralateral wave II' and III' complex tended to separate into two divided peaks with age and could be classified into three types, i.e. a single slow peaked wave, a trapezium-like broad peaked wave and a double peaked wave. We called these wave forms the infantile, transient and adult types, respectively. The infantile type was seen in subjects aged under 14 months, the transient type between 1 month and 15 years, and the adult type over 13 months. Analysis of the contralateral wave forms of brainstem auditory evoked potentials may be useful for evaluation of functional maturation of the brainstem.
对147名年龄在0天至21岁的正常受试者进行了单耳刺激下脑干听觉诱发电位的双侧记录研究。我们特别分析了对侧(与刺激侧相反)的波形。对侧波II'和III'复合波的潜伏期短于同侧波III的潜伏期。同侧波V的潜伏期短于对侧波V的潜伏期。对侧波II'和III'复合波随年龄增长倾向于分离为两个分开的峰,并可分为三种类型,即单个慢峰波、梯形宽峰波和双峰波。我们分别将这些波形称为婴儿型、过渡型和成人型。婴儿型见于14个月以下的受试者,过渡型见于1个月至15岁之间,成人型见于13个月以上。分析脑干听觉诱发电位的对侧波形可能有助于评估脑干的功能成熟度。