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題名 | Auditory Brainstem Evoked Potentials in Healthy Full-Term and Pre-Term Infants=健康足月兒與早產兒的「腦幹聽力誘發電位」檢查 |
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作者 | 江明洲; 周怡宏; 王本榮; Chiang, Ming-chou; Chou, Yi-hung; Wang, Pen-jung; |
期刊 | 長庚醫學 |
出版日期 | 20010900 |
卷期 | 24:9 2001.09[民90.09] |
頁次 | 頁557-562 |
分類號 | 417.6813 |
語文 | eng |
關鍵詞 | 腦幹聽力誘發電位; 嬰兒; 新生兒; 早產兒; Auditory brainstem evoked potentials; Infant; Neonate; Prematurity; |
英文摘要 | BACKGROUND: Auditory brainstem evoked potentials (ABEP) are used to evaluate the integrity of auditory pathways. Since there are difficulties in the performance and still no reference ranges for pre-term infants in Taiwan, the purpose of this study was to evaluate the characteristics of ABEP in full-term and pre-term infants. METHODS: Forty full-term and 52 pre-term infants were enrolled between January and December 1997. ABEP study was performed at 3-7 days after birth, 3, 6 and 12 months of age in the full-term group while the pre-term infants were assessed at 34-36 weeks of gestational age, at term age, and at 3, 6, 12 months of corrected age. Acoustic stimulation of mixed frequency rarefaction clicks was presented to each ear through earphones. The clicks were presented at an intensity of 70-90 dB (hearing level) and a gradual decrement of intensity to 20-40 dB to determine the threshold. Electrical activity was picked up by surface electrodes. Latency of peaks I, III, V, inter-peak latency I-III, III-V, I-V and the threshold were assessed. RESULTS: In the full-term group, the peak and inter-peak latencies decreased with age. In the pre-term group, the responses of 70 dB stimulus intensity were 53.8%, 58%, 82.8%, 88.9%, 100% in the sequence and the threshold of response decreased with age. CONCLUSION: There are maturational changes after birth in both full-term and pre-term infants. We conclude that ABEP study is a sensitive, non-invasive tool for the evaluation of auditory pathway in infants. |
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