Frequency-specific hearing results after stapes surgery for Chinese population otosclerosis with different degrees of hearing loss

Abstract

Background: Frequency-specific hearing studies are important for predicting hearing results and the prognosis after stapes surgery, to prepare for the rehabilitation of frequency-specific hearing in patients with otosclerosis.

Objectives: To evaluate outcomes of stapes surgery of Chinese otosclerosis patients with different degrees of hearing loss.

Methods: We conducted a retrospective analysis of 213 otosclerosis patients who underwent stapes surgery in our hospital. Pre- and post-operative audiometric evaluation using conventional audiometry.

Results: The post-op ABG was less than 20 dB in 94.52% of all cases after surgery. There was no statistical significance of the post-op ABG among different groups at all frequencies except extremely severe group (p < .05). There was a significant improvement of both AC and BC thresholds in post-op period and the most significant improvement was found in severe group. There were no serious post-op complications and no re-operations during the follow-up period.

Conclusion: Stapes surgery is a suitable treatment option for otosclerosis with mild to extremely severe HL. The mild to moderate hearing loss groups had the most significant improvement of AC thresholds in the low frequency region, and the severe to extremely severe groups appeared in the high frequency region.

Chinese abstract

背景：频率特异性听力研究对预测镫骨手术后听力结果和预后, 为耳硬化症患者频率特异性听力的康复做好准备具有重要意义。

目的：探讨中国不同程度听力损失的耳硬化症患者镫骨手术的疗效。

方法：对我院213例镫骨手术的耳硬化症患者进行回顾性分析。进行术前和术后常规测听评估。

结果：94.52%的患者术后ABG低于20 dB。除极重度组外, 各频率组术后ABG无统计学意义（p＜0.05）。术后AC和BC阈值均有明显改善, 重度组改善最为明显。术后无严重并发症, 随访期间无二次手术。

结论：镫骨手术是治疗轻至特重度HL耳硬化症的理想方法。轻中度听力损失组在低频区AC阈值改善最为显著, 而重至极重度听力损失组的显著改善出现在高频区。

Keywords:

• Otosclerosis
• stapes surgery
• hearing loss
• middle ear

Ethical approval

This study and its design were approved by the Medical Ethical Commission of the Eye and ENT Hospital affiliated to Fudan University (no.2015035).

Informed consent

All patients provided informed consent.

Author contribution

K.Z., Y.S. and B. C designed the research and analyzed the data. K.Z. and Y.F. acquired the data and created a draft of the manuscript; B.W. and X.C. conducted and further performed the study, processed and analyzed the data. Y.S. and B. C supervised the research. All authors read and approved the manuscript and agree to be accountable for all aspects of the research in ensuring that the accuracy or integrity of any part of the work is appropriately investigated and resolved.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The present study was supported in part by the National Natural Science Foundation of China [no. 81822011, 81771013, 81700925, 81870726] and Science and Technology Commission of Shanghai Municipality [17ZR1448600, 18410712400].