摘要
目的:分析耳科正常青年人气导和骨导短纯音诱发的听性脑干反应(ABR)的特性,比较气骨导短纯音ABR反应阈与纯音听阈的关系,探讨气骨导短纯音ABR反应阈对听阈评估的价值。方法:30例耳科正常青年人(男/女=14/16)分别进行纯音听阈测试、气导和骨导短声及短纯音ABR测试。结果:1气导0.5、1、2、4 k Hz短纯音诱发ABR反应阈分别较对应频率气导纯音听阈高18.41±4.47、13.18±3.63、8.86±5.10、8.64±5.16 d B,骨导0.5、1、2、4 k Hz短纯音诱发ABR反应阈分别较对应频率骨导纯音听阈高14.31±3.98、10.45±4.54、6.82±4.24、8.18±4.77 d B。2气骨导各频率短纯音ABR反应阈的差值分别为5.55±3.42、3.86±4.86、1.36±5.60、1.59±6.05 d B,0.5、1 k Hz气骨导阈值间的差异有统计学意义(P<0.01),2、4k Hz气骨导阈值间的差异无统计学意义(P>0.05)。3气骨导短纯音ABR V波潜伏期均较短声ABR长,其差异有统计学意义(P<0.01),但两者I^V波间期的差异无统计学意义(P>0.05)。结论:气骨导短纯音ABR反应阈可以预测纯音听阈,气骨导短纯音ABR反应阈的差值有助于鉴别听力损失的类型。
Objective： To analyse the characteristics of air- and bone-conducted tone-burst evoked auditory brainstem response （ABR） recorded in adults with normal hearing, to compare tone-burst ABR thresholds with pure tone behavioral thresholds and to investigate the value of air- and bone-conducted tone-burst ABR thresh- olds. Methods： Thirty otologically normal persons （male/female=14/16） accepted pure tone audiometry, air- and bone-conducted click evoked ABR and tone-burst evoked ABR. Results： （!）Thresholds of air-conducted tone- burst ABR for 0.5, 1, 2 and 4 kHz were 18.41±4.47, 13.18±3.63, 8.86±5.10, 8.64,4,5.16 dB higher than the pure tone behavioral thresholds respectively; thresholds of bone-conducted tone-burst ABR for 0.5, 1, 2 and 4 kHz were 14.31.4.3.98, 10.45.4.4.54, 6.82±4.24, 8.18±4.77 dB higher than the pure tone behavioral thresholds respec- tively. The differences between the air- and bone- conducted tone-burst ABR thresholds for 0.5, 1, 2 and 4 kHz were 5.55±3.42, 3.86±4.86, 1.36±5.60, 1.59.4.6.05 dB. The differences for 0.5, 1 kHz were statistically significant （P〈0.01）; the differences for 2, 4 kHz had no statistically significance （P〉0.05）. The wave V latencies of air- and bone-conducted tone-burst evoked ABR were significantly longer than those of click evoked ABR （P〈0.01）, but there was no significant difference for I - V interval （P〉0.05）. Conclusion： The thresholds of air- and bone- conducted tone-burst evoked ABR are useful in estimating the pure tone behavioral thresholds. The differences between the air- and bone-conducted tone-burst ABR thresholds may be helpful in differentiating the type of hearing loss.
出处
《温州医科大学学报》
CAS
2016年第2期106-111,共6页
Journal of Wenzhou Medical University
基金
温州市科技局科技计划项目(Y20130264)
关键词
短纯音
气导
骨导
听性脑干反应
tone burst
air-conducted
bone-conducted
auditory brainstem response
