摘要
目的:研究通过听力筛查新生儿226、1000Hz探测音鼓室图测试结果,探讨对新生儿鼓室图结果的正确解读及其临床应用价值.方法:对双耳通过DPOAE听力筛查、无2007年美国新生儿听力联合委员会提出的任何一项听力损失高危因素的206例2～7 d龄[(3.92±1.24)d]的新生儿分别进行226、1000 Hz探测音鼓室图测试.结果:408耳鼓室图测试结果:226 Hz探测音鼓室图中单峰型213耳(52.20％)、双峰型194耳(47.55％)、无峰型1耳(0.25％);1000 Hz探测音鼓室图中单峰型387耳(94.85％)、其他型21耳(5.15％).1000 Hz探测音单峰型鼓室图的各参数值分别为:鼓室图峰压(33.24±44.37)dapa;峰补偿静态声导纳值(0.52±0.25)mmho;鼓室图宽度:左耳(121.38±28.79)dapa、右耳(108.63±26.00)dapa,差异有统计学意义.用226 Hz探测音测得的等效外耳道容积为:男(0.44±0.10) ml,女(0.43±0.08)ml,差异有统计学意义.结论:新生儿226 Hz探测音鼓室图以双峰型与单峰型为主；1000 Hz探测音鼓室图以单峰型为主,且较226 Hz探测音对新生儿中耳功能更为敏感,新生儿鼓室图测试宜使用1000 Hz探测音.本研究所获226、1000 Hz探测音鼓室图的各参数值可试用于新生儿鼓室图结果的临床解释以评估其中耳功能,但仍需进一步扩大样本量在该领域进行相关研究.
Abstract
This study aims at investigating tympanogram in newborns who passed hearing screening using 226 and 1 000 Hz probe tones in order to interpret the test results correctly and find out its clinical value in audiological evaluation and diagnosis in this population. Method; Tympanogram was conducted using 226 and 1 000 Hz probe tones in 206 newborns between 2 and 7 days of age (3. 92 ±1.24 ) in both ears that passed the DPOAE screening and without any of the high risk register (HRR) factors associated with hearing loss according to the Joint Committee on Infant Hearing in 2007. Result:The tympanogram results tested in 408 ear were as following; the percentage of single-peaked, double-peaked, and none-peaked tympanograms using 226 Hz were 52. 20% (213 ears) ,47. 55%(194 ears) and0. 25%(1 ear) respectively. The percentage of single-peaked and other morphological type tympanograms using 1000 Hz were 94.85%(387 ears) and 5. 15%(21 ears) respectively. The parameters of 1000 Hz single-peaked tympangratn in this study were as following: the average tympanometric peak pressure was 33. 24 ± 44. 37 dapa, the average peak compensated static acoustic admittance was 0, 52 ±0, 25 mmho, the average tympanometric width for right and left ears were 121. 38±28. 79 and 108, 63±26. 00 dapa respectively with a statistically significant difference between them(P<0, 01), The average volume of ear canal (Vec, using 226 Hz probe tone) at boys and girls were 0. 44 ±0. 10 and 0. 43 ± 0. 08 ml respectively with a statistically significant difference between them(P<0. 05). Conclusion;The morphology of tympanogram usmg a 226 Hz probe tone in newborns usually includes two main types: single-peaked and double-peaked, while it is primarily the single-peaked tympanogram while using a 1 000 Hz probe tone. It is more appropriate to use a 1000 Hz probe tone than 226 Hz when testing newborns tympanogram. The parameters obtained in this study using 1 000 Hz and 226 Hz could be tried and applied to interpet clinical tympanogram test results and evaluate middle ear function. However ,more studies with bigger sample size are necessary in this field.
NETL
NSTL
维普
万方数据