短声作为刺激声进行同侧声反射阈测定之临床价值  

The clinical value of click stimuli on the measurement of ipsilateral acoustic reflex thresholds

作　　者：郭亿莲[1] 戴滨泉[1] 李巧荣[1] 钟乃川[2] 

机构地区：[1]中山市中医院耳鼻咽喉科,广东中山528400 [2]同济医科大学附属协和医院耳鼻咽喉科

出　　处：《临床耳鼻咽喉科杂志》2000年第7期301-302,共2页Journal of Clinical Otorhinolaryngology

摘　　要：目的 :确定短声可代替纯音作为刺激声作同侧声反射阈测定 ,并了解探测音频率对声反射阈的影响。方法 :应用 GSI33 型中耳分析仪 ,对正常志愿者 2 3例 46耳作不同探测音频率的纯音及短声刺激率 10 0次 / s及180次 / s的同侧声反射阈测定。结果 :声反射阈 2 2 6 Hz探测音时 5 0 0 Hz、10 0 0 Hz、2 0 0 0 Hz分别为 ( 84.35±6 .96 ) d B、( 84.6 5± 5 .93) d B、( 87.96± 6 .36 ) d B;6 78Hz探测音时分别为 ( 93.13± 6 .5 4) d B、( 92 .70± 6 .33) d B、( 93.35± 5 .99) d B;10 0 0 Hz探测音时分别为 ( 86 .5 2± 4.72 ) d B、( 87.48± 5 .0 0 ) d B、( 88.30± 6 .16 ) d B。短声刺激率 10 0次 / s及 180次 / s同侧声反射阈 2 2 6 Hz探测音时分别为 ( 89.78± 6 .83) d B、( 92 .0 7± 7.42 ) d B;6 78Hz探测音时为 ( 90 .44± 6 .76 ) d B、( 90 .6 5± 6 .38) d B;10 0 0 Hz探测音时为 ( 88.0 4± 6 .87) d B、( 88.6 9± 7.49) d B。 6 78Hz探测音 ,声反射阈高于 2 2 6 Hz及 10 0 0 Hz。结论 :低刺激率的短声作为刺激声并未出现赝象 。Objective:To define that click can substitute for pure tone as a stimulus to measure ipsilateral acoustic reflex thresholds,and to find out the effect of probe frequency on acoustic reflex thresholds.Method:Using middle ear analyzer (GSI 33,version 2),we measured 23 normal voluntary participants (46 ears) for getting the puretone generated ipsilateral acoustic reflex thresholds at different probe frequency and the click evoked ipsilateral acoustic reflex thresholds at click rate 100/s and 180/s for every ear.Result:For pure tone,the ipsilateral acoustic reflex thresholds at 500 Hz,1000 Hz,2000 Hz,were ( 84.35 ± 6.96 )dB,( 84.65 ± 5.93 )dB,( 87.96 ± 6.36 )dB by using 226 Hz probe;( 93.13 ± 6.54 )dB,( 92.70 ± 6.33 )dB,( 93.35 ± 5.99 )dB by using 678 Hz probe;( 86.52 ± 4.72 )dB,( 87.48 ± 5.00 )dB,( 88.30 ± 6.16 )dB by using 1000 Hz probe.For click,the ipsilateral acoustic reflex thresholds at click rate 100/s and 180/s were ( 89.78 ± 6.83 )dB,( 92.07 ± 7.42 )dB by using 226 Hz probe;( 90.44 ± 6.76 )dB,( 90.65 ± 6.38 )dB by using 678 Hz probe;( 88.04 ± 6.87 )dB,( 88.69 ± 7.49 )dB by using 1000 Hz probe.The acoustic reflex thresholds for 678 Hz probe were higher than those obtained with 226 Hz and 1000 Hz probes.Conclusion:There were no artifact appearance while stimulus had been click at low rate,so click can be used for the measurement of ipsilateral acoustic reflex thresholds.

关 键 词：声刺激 声反射阈 探测音频率 测定 

分 类 号：R764.04[医药卫生—耳鼻咽喉科]