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首页> 外文期刊>Auris, nasus, larynx >Relationship between CT findings and sensorineural hearing loss in chronic otitis media
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Relationship between CT findings and sensorineural hearing loss in chronic otitis media

机译：慢性中耳炎的CT表现与感觉神经性听力丧失的关系

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Objective: To investigate the relationships between the temporal bone CT findings and sensorineural hearing loss in ears with non-cholesteatomatous chronic otitis media (COM). Methods: Preoperative bone conduction (BC) hearing thresholds of 266 patients (304 ears) with COM were compared with those of 342 normal individuals (440 ears) by audiometry. The incidence of abnormal BC threshold at lower frequencies (250-1000. Hz) and at higher frequencies (2000-4000. Hz) were examined and the differences between control and COM groups were compared by using χ2 test. In the COM group, the cross-sectional area of the mastoid air cells based on the axial CT image (n = 255) were correlated with the results of BC threshold. Results: The percentage in the COM group exceeds 15% in their 50s at lower frequencies while in their 40s at higher frequencies. The BC thresholds were significantly better in the group with normal mastoid area than in those with smaller mastoid area at each decadal age group. The BC impairment from COM becomes worse as the course of the disease progresses and deteriorated from 40s rapidly, especially at higher frequencies and in the group with smaller mastoid area. Conclusion: These results recommend that early treatment, including surgery, should be considered as early as possible before BC impairment occurs, especially for COM cases with smaller mastoid area, which may indicate the existence of more severe otitis media since earlier childhood.
机译：目的：探讨非胆总管结节性中耳炎（COM）的颞骨CT表现与感觉神经性听力损失之间的关系。方法：通过听力测验比较了266例COM患者（304耳）与342例正常人（440耳）的术前骨传导（BC）听力阈值。检查了较低频率（250-1000.Hz）和较高频率（2000-4000.Hz）下BC异常阈的发生率，并通过χ2检验比较了对照组和COM组之间的差异。在COM组中，基于轴向CT图像（n = 255）的乳突状气囊的横截面积与BC阈值的结果相关。结果：COM组的百分比在较低频率下的50s超过15％，而在较高频率下的40s超过15％。在每个十年年龄组中，乳突面积正常的组的BC阈值均比乳突面积较小的组的BC阈值好得多。随着病程的进展，COM引起的BC损伤变得更严重，并且从40 s开始迅速恶化，尤其是在较高频率和乳突面积较小的人群中。结论：这些结果表明，应在BC损伤发生之前尽早考虑包括外科手术在内的早期治疗，特别是对于乳突面积较小的COM病例，这可能表明自儿童早期以来就存在更严重的中耳炎。

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