摘要
目的研究中青年国人鼓室导抗图各个测试项目的正常值范围及中年组和青年组之间的鼓室导抗图的差异。方法选取纯音听阈正常、无耳科疾病的正常中青年人58例,在隔声室中,AA222中耳分析仪、226Hz探测音测试鼓室导抗图。结果所有鼓室导抗图均符合Jerger分类法中的“A”型曲线,其静态声顺值比国外的稍小;中年组和青年组间等效外耳道容积和峰压值差异具有统计学意义(P<0.05),而声顺和坡度差异则无统计学意义(P>0.05)。结论青年组与中年组鼓室导抗图等效外耳道容积和峰压值存在的显著性差异,可能与年龄增长所致外耳道壁松弛、外耳道容积变大、咽鼓管调节功能下降等因素有关。
Objective To investigate the range of normal values of tympanngram among puber-middle aged Chinese and their differences between the puber group and middle-aged group. Methods Included in this study were 58 puber-middle aged Chinese with normal hearing threshold and with no ear diseases. Their tympanngrams were determined in sound isolation room by AA222 Middle Ear Analyzer with a probe sound at 226 Hz. Results Tympanograms of this group of subjects determined in this way were all shown A type, according to the standard of Jerger categorizing system, with a slightly less static compliance value than foreigners. With a comparison between the subjects of puber group and middle-aged group, there were statistic differences in the values of equivalent canal volume and peak sound pressure （ P 〈 0.05） but not in that of acoustic compliance and gradient （ P 〉 0.05） as determined from the tympanograms between them. Conclusion It may be suggested from the differences in the values of equivalent canal volume and peak sound pressure that there are close association of these two parameters with such factors as canal skin relax and volume increasing, reduced regulating ability of Eustachian tube function following aging and so on.
出处
《中国中西医结合耳鼻咽喉科杂志》
2007年第2期97-99,共3页
Chinese Journal of Otorhinolaryngology in Integrative Medicine
关键词
鼓室导抗图
等效外耳道容积
声顺
峰压值
坡度
Tympanogram
Equivalent canal volume
Acoustic compliance
Peak sound pressure
Gradient
