172名1-36月婴幼儿的声能吸收率测试分析  

Wideband acoustic energy absorbance in 172 infants

作　　者：熊琪 王小亚 彭峤琛 谢小赳 罗仁忠 

机构地区：[1]广州市妇女儿童医疗中心耳鼻喉科,510623

出　　处：《中华耳科学杂志》2015年第3期422-427,共6页Chinese Journal of Otology

摘　　要：目的分析1-36月婴幼儿的宽频声能吸收率（wideband acoustic energy absorbance,WBA）测试结果,为其临床应用提供参考。方法选取1-36月、声导抗测试结果正常、畸变产物耳声发射,测试正常的婴幼儿共172名（337耳）。根据月龄分组：1-2月组,共86耳;3-6月组,共61耳;7-12月,共97耳;13月-36月组,共93耳。对各组婴幼儿进行宽频声能吸收率测试,比较各个月龄段的声能吸收率曲线分布特点,分析吸收率随年龄增长的变化情况。结果 1、声能吸收率随月龄变化,频率-吸收率曲线逐渐由＂~＂转变成＂∧＂形。2、7-12月和13-36月组中有1/2的频率的声能吸收率值差别无统计学意义。3、四组声能吸收率各个频率的标准差SD（standard deviation）的均值分别为0.2066、0.1731、0.1393、0.1583。结论1、随月龄增加,频率-吸收率曲线逐渐由＂~＂转变成＂∧＂形,中高频的声能吸收率效能逐渐高于低频和高频。2、7月以后,吸收率曲线形态逐渐趋于稳定,组内变化差异减小。3、随月龄的变化声能吸收率曲线范围也逐渐变化,当在容许的变化范围内波动时,仍可视为正常中耳。且月龄越小,声能吸收率值波动越大,表明中耳所处的发育状态越不稳定。Objective Wideband acoustic energy absorbance（WBA） was tested in 172 infants aged1-36 months in an attempt to provide references for potential clinical applications. Methods Infants（n=172,337 ears） aged 1-36 months who had passed tympanometry and distortion product otoacoustic emission（DPOAE） test were divided into 4 groups based on their age： Group 1（1-2 months, 86 ears）, Group 2（2-6months, 61 ears）, Group 3（6-12 months, 97 ears） and Group 4（above 12 months, 93 ears）. All the infants received WBA test. Variations of absorbance among different groups were compared and relations between absorbance characteristics and age were investigated. Results 1） Along with age, the WBA frequency-absorbance curve changed from a＂~＂shape to a＂^＂shape. 2） WBA showed no significant differences for half of the tested frequencies between Groups 3 and 4. 3） The average WBA standard deviations for the four age groups were 0.2066, 0.1731, 0.1393 and 0.1583, showing a trend of decrease with age. Conclusions 1） WBA frequency-absorbance rate curves change with age, with gradually increasing mid frequency WBA relative to low and high frequencies. 2） The frequency-absorbance rate curve appears to stabilize after 7 months. 3）WBA variations also decrease along with age, indicating variable middle ear development at younger ages.

关 键 词：声能吸收率 畸变产物耳声发射DPOAE 婴幼儿 中耳功能 

分 类 号：R722.19[医药卫生—儿科]