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Distortion Products Otoacoustic Emissions as Markers of Tinnitus Persistence after Acute Acoustic Trauma

机译:畸变产物耳声发射作为急性听觉损伤后耳鸣持续性的标志物

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It is a common thought in the physicians military community that persistence of tinnitus after acute acoustic trauma (AAT) essentially depends on severity of hearing thresholds shifts. Nevertheless it has never been demonstrated scientifically. Here we have looked for predictive factors of tinnitus duration after AAT by using hearing thresholds and distortion product otoacoustic emissions (DPOAEs). DPOAEs are otoacoustic emissions that revealed the functional state of the active cochlear mechanical processes. Young military adults under 25 years old, without history of tinnitus and hospitalized for an AAT were followed-up for 15 days. Examination during which the tinnitus state was recorded were carried out at three periods of time: 24 5 hours, 72 hours and 15 days after the trauma.

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