某些突发性感音-神经性聋(SHL)病例具有令人困惑的特征:看起来严重的损伤已广泛地波及整个耳蜗,但听力却能恢复正常。例如作者观察到某些患者的听阈降至80或90dB,却能在1—2周内恢复正常,也有某些病例的听力未能完全恢复,而在耳蜗顶端的低频听力比高频听力则有较多的改善。 Certain sudden-onset sensory-deafness (SHL) cases have the puzzling characteristic that seemingly serious injuries have spread throughout the entire cochlea but their hearing returns to normal. For example, the authors observed that in some patients the hearing threshold dropped to 80 or 90 dB, but returned to normal within 1-2 weeks. In some cases, the hearing was not fully recovered, whereas the low-frequency hearing at the top of the cochlea was higher than the high-frequency hearing More improvement.