慢性化脓性中耳炎与感音神经性聋的相关性分析

目的：探讨慢性化脓性中耳炎与感音神经性聋之间的相关性。方法：回顾分析174例单侧慢性化脓性中耳炎患者的骨导阈值改变。采用配对t检验分析0．5kHz，1．0kHz，2．0kHz，4．0kHz患耳与健耳骨导阈值的差异，单因素方差分析法分析胆脂瘤存在及听骨链破坏对语频(0．5kHz，1．0kHz，2．0kHz)和4．0kHz骨导阈值的影响，直线回归法讨论了语频和4．0kHz骨导阈值改变与年龄和病程之间的相关性。结果：患耳与健耳各频率骨导阈值之间差异有统计学意义。语频骨导听力损失程度随着患者年龄的增加而逐渐加重。胆脂瘤的存在以及听骨链破坏亦未增加感音神经性聋的发生概率。结论：慢性化脓性中耳炎可引起感音神经性聋。高频骨导听阈较低频更易受到影响。

Analysis of sensorineural hearing loss in chronic suppurative otitis media

Objective:To explore the association between chronic suppurative otitis media and sensorineural hearing loss.Method:The files of 147 patients with unilateral chronic suppurative media were reviewed in a retrospective study. Differences between diseased and control ear bone conduction thresholds were analysed by the paired student's t-test over the four frequencies ( 0.5 kHz, 1.0 kHz, 2.0 kHz, 4.0 kHz).The effect of the presence of cholesteatoma and ossicular erosion on sensorineural hearing loss over the speech frequencies ( 0.5 kHz, 1.0 kHz, 2.0 kHz) and 4.0 kHz were analysed by one-way ANOVA. Linear regression models were used to clarify the relationships between sensorineural hearing loss and chronic suppurative otitis media.Result:The differences in bone conduction threshold between diseased and control ear were statistically significant. Bone conduction threshold shift at speech frequency was associated with the ages.The presence of cholesteatoma and ossicular erosion was not associated with a significantly increased risk of sensorineural hearing loss.Conclusion:Chronic suppurative otitis media can result in sensorineural hearing loss.The higher frequencies are easier affected than the lower frequencies.