Wideband aural acoustic absorbance predicts conductive hearing loss in children
Wideband aural acoustic absorbance predicts conductive hearing loss in children
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DOI：
10.3109/14992027.2012.721936
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发表时间：
2012-12-01
影响因子：
2.7
通讯作者：
Gorga, Michael P.
中科院分区：
文献类型：
--
作者：
Keefe, Douglas H.;Sanford, Chris A.;Gorga, Michael P.
目的：本研究验证了宽带听觉吸收预测医学分类为分泌性中耳炎的儿童传导性听力损失（CHL）的假设。设计：在环境压力下测量耳道中0.25至8 kHz频率的吸光度或扫描鼓室图。在0.25至4 kHz范围内，使用20、25和30 dB的标准气隙来定义CHL。构建了环境吸光度跨频率、吸光度鼓室测量跨频率和压力的CHL似然比预测因子。在单个频率和存在CHL的任何频率下评估性能。研究样本：对3 ~ 8岁CHL患儿和听力正常的儿童进行吸光度和常规0.226 khz鼓室图测量。结果：CHL组在0.7 kHz以上吸光度小于对照组。根据接收机工作特性曲线下的面积，环境和鼓室测试中的宽带吸光度比鼓室宽度更能预测CHL，鼓室宽度是0.226 khz的最佳预测因子。环境和鼓室测量宽带吸光度的准确性没有差异。结论：吸光度准确预测儿童CHL，比传统的0.226 khz鼓室测量法更准确。
Objective: This study tested the hypothesis that wideband aural absorbance predicts conductive hearing loss (CHL) in children medically classified as having otitis media with effusion. Design: Absorbance was measured in the ear canal over frequencies from 0.25 to 8 kHz at ambient pressure or as a swept tympanogram. CHL was defined using criterion airbone gaps of 20, 25, and 30 dB at octaves from 0.25 to 4 kHz. A likelihood-ratio predictor of CHL was constructed across frequency for ambient absorbance, and across frequency and pressure for absorbance tympanometry. Performance was evaluated at individual frequencies and for any frequency at which a CHL was present. Study sample: Absorbance and conventional 0.226-kHz tympanograms were measured in children of age three to eight years with CHL and with normal hearing. Results: Absorbance was smaller at frequencies above 0.7 kHz in the CHL group than the control group. Based on the area under the receiver operating characteristic curve, wideband absorbance in ambient and tympanometric tests were significantly better predictors of CHL than tympanometric width, the best 0.226-kHz predictor. Accuracies of ambient and tympanometric wideband absorbance did not differ. Conclusions: Absorbance accurately predicted CHL in children and was more accurate than conventional 0.226-kHz tympanometry.