刘乙娜 1宗小芳 1王倩滢 1潘小燕 1康厚墉 1雷艳1
作者信息
- 1. 重庆医科大学附属第一医院耳鼻咽喉科(重庆 400016)||重庆医科大学第一临床学院听力与言语康复学系
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摘要
Abstract
Objective To report wideband acoustic immittance(WAI)test results and influencing factors in young people with normal hearing.Methods A total of 128 young individuals(256 ears)with normal pure tone audiometry profiles and normal tympanic membranes by otoscopy from the Department of Otorhinolaryngology of the First Affiliated Hospital of Chongqing Medical University were recruited to receive WAI tests from July 1,2023 to January 30,2024,to determine resonance frequency range and sound energy absorption rate curves under ambient and peak pressures.The effects of gender,side,body mass index(BMI)and equivalent ear canal volume(ECV)on the resonance frequency were analyzed,as well as their effects on the sound energy absorption rate under ambient and peak pressures.Results The resonance frequency in this group of normal young people was 891.63±224.48 Hz.The sound energy absorption rate rose slowly at low frequencies,reached a secondary peak in the 1～2 kHz range,then gradually decreased with increasing frequency but reached the main peak in the 2～4 kHz range,followed by another gradual decrease,showing an asymmetrical inverted"W"shape with an upward trend in the 7～8 kHz range.The peak of the sound energy absorption occurred between 3267～4237 Hz in approximately 75%of the subjects.The resonance frequency in females(910.21±214.59 Hz)was slightly higher than in males(861.87±237.58 Hz),although not statistically significant(P=0.094),similar to the difference between the left ear(903.46±226.23 Hz)and right ear(879.71±222.96 Hz)(P=0.399).The resonance frequency decreased as ECV and BMI increased(P＜0.001,r=-0.394 and P=0.022,r=-0.202,respectively),showing a negative correlation.In the 226～8000 Hz frequency range,the sound energy absorption rate variation under different pressures was different between males and females(P＜0.05).There was no difference in sound energy absorption rates between the two ears under peak pressure,(P=0.393),nor under ambient pressure(P=0.405).BMI was positively correlated with sound energy absorption rate in the 226-374.58 Hz and 5822.61～5993.23 Hz frequency ranges and negatively correlated with sound energy absorption rate in the 385.55～514.65 Hz,943.87～1122.46 Hz and 5495.81～5656.85 Hz frequency ranges under peak pressure,while positively correlated with sound energy absorption rate in the 648.42～1189.21 Hz,1373.95～1887.75 Hz and 2244.92～2378.41 Hz frequency ranges,and at 5822.61 Hz,and negatively correlated with sound energy absorption rate in the 1224.05～1334.84 Hz,2448.11～2519.84 Hz frequency ranges,and at 5656.85 Hz under ambient pressure.Conclusion In clinical practice,the data acquired in this study can serve as a basis for comprehensive assessment of middle ear function,thereby improving the accuracy of middle ear diseases diagnosis.关键词
宽频声导抗/声能吸收率/共振频率/中耳功能评估Key words
wideband acoustic immittance/sound energy absorption rate/resonance frequency/middle ear function assessment
