Bonfils P, Avan P, Francois M, Trotoux J, Narcy P
ORL Department, Hôpital Boucicaut, Faculty Necker-Enfants-Malades, University Paris V, France.
Acta Otolaryngol. 1992 Sep;112(5):739-44. doi: 10.3109/00016489209137468.
Distortion-product otoacoustic emissions (DPOEs) are otoacoustic emissions evoked by two pure tones and used in order to provide a frequency specific assessment of the mechanical properties of the cochlea. This paper first reports complete input-output DPOE functions for audiometric frequencies between 867 Hertz and 8 kHz in a normal neonate population (normative data). DPOE results were analyzed as a function of evoked otoacoustic emission (EOE) properties. Neonates having normal EOEs have large DPOEs. DPOE amplitudes in neonates are larger than in adults. Neonates with atypical EOE frequency spectrum without low frequency components had normal DPOE input-output functions only for high frequencies (above 2 kHz). DPOEs could be useful, in association with EOEs, to precisely evaluate the auditory peripheral function in neonates.
畸变产物耳声发射（DPOEs）是由两个纯音诱发的耳声发射，用于对耳蜗的机械特性进行频率特异性评估。本文首次报告了正常新生儿群体中867赫兹至8千赫兹听力计频率的完整输入-输出DPOE函数（规范数据）。DPOE结果作为诱发耳声发射（EOE）特性的函数进行分析。具有正常EOE的新生儿有较大的DPOE。新生儿的DPOE振幅大于成人。具有非典型EOE频谱且无低频成分的新生儿仅在高频（2千赫兹以上）有正常的DPOE输入-输出函数。DPOE与EOE联合使用，可能有助于精确评估新生儿的听觉外周功能。
