Chang S O, Jang Y J, Rhee C K
Department of Otolaryngology, Seoul National University College of Medicine, South Korea.
Auris Nasus Larynx. 1998 Sep;25(3):243-7. doi: 10.1016/s0385-8146(97)10038-4.
In order to assess the applicability of transient evoked otoacoustic emissions (TEOAEs) measurements on the sequential monitoring of children with middle ear effusion (MEE), the effects of MEE on TEOAEs response were investigated. TEOAEs responses were recorded on 56 ears of 33 patients before and after tympanostomy tube placement. In the 37 ears with MEE seen at myringotomy, the average band reproducibility below 2 kHz recovered significantly after tube placement, whereas the average band reproducibility at 5 kHz diminished. In the 19 ears without MEE, no significant changes in echo amplitude and band reproducibility were noted in the post-operative TEOAEs measurements compared with pre-operative ones. The results of this study suggest that an improvement in echo response and band reproducibility below 2 kHz in serial TEOAEs measurements may indicate resolution of MEE in children with otitis media with effusion.
为了评估瞬态诱发耳声发射（TEOAEs）测量在中耳积液（MEE）患儿序贯监测中的适用性，研究了MEE对TEOAEs反应的影响。在鼓膜置管前后，对33例患者的56只耳朵进行了TEOAEs反应记录。在鼓膜切开术中发现有MEE的37只耳朵中，置管后2kHz以下的平均频段重复性显著恢复，而5kHz时的平均频段重复性降低。在19只无MEE的耳朵中，术后TEOAEs测量的回声幅度和频段重复性与术前相比无显著变化。本研究结果表明，在伴有积液的中耳炎患儿中，连续TEOAEs测量中2kHz以下回声反应和频段重复性的改善可能表明MEE已消退。
