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目的:探讨多频稳态诱发电位,即听觉稳态反应(ASSR)在城市社区极重度感音神经性耳聋婴幼儿测试中的临床应用价值。方法:2003年3月-2008年2月对72例(144耳)<3岁极重度感音神经性耳聋婴幼儿分别行ASSR和听性脑干反应(ABR)测试。结果:极重度感音神经性耳聋婴幼儿ABR均未引出V波,而ASSR在0.5、1.0、2.0、4.0kHz引出72耳电位反应,引出率分别为66.67%(48/72)、86.11%(62/72)、88.89%(64/72)、94.44%(68/72),差异有统计学意义(P<0.05);ASSR在0.5、1.0、2.0、4.0kHz的阈值分别为(82.56±9.26)、(90.31±6.94)、(88.12±7.93)、(88.62±8.12)dBHL。结论:ASSR有助于极重度感音神经性耳聋婴幼儿的残余听力客观评估,尤以高频听阈为佳。
Objective: To investigate the clinical value of multi-frequency steady-state evoked potentials (ASSR) in infants and young children with severe sensorineural hearing loss in urban community. Methods: From March 2003 to February 2008, 72 patients (144 ears) with severe sensorineural hearing loss and deafness were tested with ASSR and auditory brainstem response (ABR) respectively. Results: There was no V-wave in the ABR of extremely senile sensorineural deafness, while ASSR induced 72-ear potentials in 0.5, 1.0, 2.0 and 4.0 kHz, with the lead rates of 66.67% (48/72) and 86.11% 62/72), 88.89% (64/72) and 94.44% (68/72), respectively, the difference was statistically significant (P <0.05); the threshold values of ASSR at 0.5,1.0,2.0,4.0kHz were (82.56 ± 9.26 ), (90.31 ± 6.94), (88.12 ± 7.93), (88.62 ± 8.12) dBHL. Conclusion: ASSR contributes to the objective assessment of residual hearing loss in extremely sensorineural hearing loss deaf children, especially in high frequency hearing threshold.