Harada T
Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Japan.
Br J Audiol. 1996 Dec;30(6):363-7. doi: 10.3109/03005369609078423.
Patterns of hearing recovery in idiopathic sudden sensorineural hearing loss (ISSNHL) during the initial stage of treatment were examined in 51 patients who showed significant recovery. By plotting average hearing threshold level or degree of average hearing improvement against number of days after the first examination, a pattern of recovery was seen for each patient, and the superimposed patterns of hearing recovery were examined as a whole and in groups. The results indicated that most patients showed either initial rapid recovery reaching a plateau or a very gradual and slow recovery. In a small number of patients, the pattern of rapid recovery appeared somewhat delayed. Further analysis by grouping the patients revealed that initial rapid recovery was frequently observed in the groups which showed smaller degree of hearing loss at the first examination, greater degree of hearing improvement overall, and smaller degree of hearing loss once stable. The results of this study appear to indicate that patterns of recovery at the initial stage of ISSNHL reflect the prognosis to a certain degree.
对51例有显著听力恢复的特发性突发性感音神经性听力损失（ISSNHL）患者在治疗初期的听力恢复模式进行了研究。通过将平均听力阈值水平或平均听力改善程度与首次检查后的天数进行绘图，观察到每位患者的恢复模式，并对听力恢复的叠加模式进行了整体和分组检查。结果表明，大多数患者要么表现为初期快速恢复并达到平台期，要么是非常缓慢的恢复。少数患者的快速恢复模式出现了一定延迟。通过对患者进行分组进一步分析发现，在首次检查时听力损失程度较小、总体听力改善程度较大以及稳定后听力损失程度较小的组中，经常观察到初期快速恢复。本研究结果似乎表明，ISSNHL初期的恢复模式在一定程度上反映了预后。
