新生儿畸变产物耳声发射(DPOAE)检出率特性分析

Analysis of verifying-rate of distortion product otoacoustic emissions (DPOAEs) for neonates

本文分别对正常足月新生儿组和新生儿群体（正常足月新生儿和非正常足月新生儿）畸变产物耳声发射（distortionProductotoacousticemissions，DPOAEs）的检出率进行分析，并将DPOAE技术作为新生儿听力筛查方法对新生儿群体的听功能进行检测。结果显示：①正常足月儿测试频率（f2）=1．0kHZ的DPOAES检出率低于其他各检测频率；②正常足月儿在f2=1．0，1．3，5．0kHZ测试频率的DPOAEs检出率高于TEOAEs检出率；在f2=3．1kHZ测试频率，前者低于后者；③正常足儿中，46.67％的中耳负压耳，在测试频率（f2）低于2．0kHZ的频段未检出DPOAEs；④筛查儿（正常足月儿和非正常足月儿）的DPOAEs捡出率随口龄增长而增高；⑤在围产新生儿期，DPOAE筛查通过率低于TEOAE筛查通过率，然而，在生后6周两者之间无显著差异。

The verifying-rate of distortion product otoacoustic emissons(DPOAEs) for newbornk was studied. The results showed: ① The verifying-rate ofDPOAEs at f2= 1. OkHz was l0wer than that at 0ther frequencies in full-term newborns;② For full-term newborns,the verifying-rate of DPOAEs at f2 = 1. 0, 1.3 & 5.OkHz washigher than that Of TEOAEs at the same frequencies lnevertheless,at 3. 1kHz the formerwas lower than the latter; ③ For 46.67% of ears that exhibited negative pressure infull-term neonates,at f2 = 1. O, 1. 3 & l. 6kHz, DPOEAs were non-existent; ④ The veri-fying-rate 0f DPOAEs for newborns (including normal full-term and abnormalnewborns)became higher with aging; ⑤ The passing-rate of DPOAE hearing screeningwas lower than that of TEOAE screening for newborns during the first 7-day afterbirth; however, there was no difference of passing-rate between DPOAE & TEOAEscreening at 6 weeks after birth.