Lu Jin-shan, Zhang Jin, Tang Liang, Ding Wei, Zhang Lun, Guo Xiao-ping, Zai Nu-la
Department of Otorhinolaryngology Head and Neck Surgery, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi 830001, China.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2011 Nov;46(11):905-8.
To analysis the clinical characteristics of 1000 Hz probe tone tympanometry obtained from normal neonates who passed the OAE screening. To calculate the normal range of the variances of the tympanometry, which may serve as the guide for newborn hearing screening and detect middle ear function in neonates.
OAE screening were performed to screen the hearing with GSI-70 Automated OAE. The 1000 Hz probe tone tympanograms were obtained from 650 neonates who passed the TEOAE screening in both ears and were on the normal physiological conditions after birth with GSI Tympstar Version II Middle Ear Analyzer. The means, the standard deviation, the 95% confidence interval were analyzed.
The 1000 Hz tympanometric data showed the 1Y1B1G tympanogram in 732 ears (56.3%), the 1Y3B1G tympanogram in 145 ears (11.2%), the 0Y0B0G tympanogram in 269 ears (20.7%), other shapes in 154 ears (11.8%) according to the Vanhuyse model. The 1000 Hz tympanometric datas showed the single-peaked tympanogram in 967 ears, the 95% confidence interval of the tympanometric data were as follows: tympanometric peak pressure (Tpp) was from -55.0 to 180.0 daPa, peak compensated static acoustic admittance (Peak Ytm) was 0.03-1.18 mmHo, tympanometric width (TW) was 70.0-230.0 daPa.
The majority of 1000 Hz tympanograms from this study show the single-peaked in normal neonates. The 95% confidence interval of the tympanometric data may serve as a guide for hearing screening and detecting middle ear function in neonates.
分析通过耳声发射（OAE）筛查的正常新生儿1000Hz探测音鼓室图的临床特征。计算鼓室图各项参数的正常范围，为新生儿听力筛查及中耳功能检测提供参考依据。
采用GSI-70自动耳声发射仪对新生儿进行听力筛查。选取双耳通过瞬态诱发耳声发射（TEOAE）筛查、出生后处于正常生理状态的650例新生儿，使用GSI Tympstar II型中耳分析仪获取其1000Hz探测音鼓室图，分析其均值、标准差及95%置信区间。
根据Vanhuyse模型，1000Hz鼓室图表现为1Y1B1G型732耳（56.3%），1Y3B1G型145耳（11.2%），0Y0B0G型269耳（20.7%），其他类型154耳（11.8%）。1000Hz鼓室图呈单峰型967耳，鼓室图各参数的95%置信区间为：鼓室峰压（Tpp）-55.0～180.0daPa，峰等效静态声导纳（Peak Ytm）0.03～1.18mmHo，鼓室宽度（TW）70.0～230.0daPa。
本研究中多数正常新生儿1000Hz鼓室图呈单峰型。鼓室图各参数的95%置信区间可为新生儿听力筛查及中耳功能检测提供参考依据。
