Dumich P S, Harner S G
Laryngoscope. 1983 May;93(5):583-6. doi: 10.1002/lary.1983.93.5.583.
Otologic symptoms, audiometric data, and operative findings were reviewed in 200 consecutive patients who had surgically treated unilateral chronic otitis media. Bone conduction thresholds were analyzed in relation to extent of perforation, frequency of otorrhea, duration of disease, and extent of pathologic change. Median bone conduction threshold differences between diseased and uninvolved ears were within 5 dB at all frequencies. The mean speech discrimination score between affected and unaffected ears was equal. Patients with prolonged disease and more extensive pathologic alterations were more likely to experience cochlear changes and hence sensorineural hearing loss, though not to the extent others have described. Our findings indicate that chronic otitis media has little effect on cochlear function in the majority of patients.
回顾了200例接受单侧慢性中耳炎手术治疗患者的耳科症状、听力测定数据及手术结果。分析了骨导阈值与穿孔范围、耳漏频率、病程及病理改变程度的关系。患耳与未患耳之间的骨导阈值中位数差异在所有频率下均在5 dB以内。患耳与未患耳之间的平均言语识别得分相等。病程较长且病理改变较广泛的患者更有可能出现耳蜗变化，进而出现感音神经性听力损失，尽管程度不如其他人所描述的那样。我们的研究结果表明，在大多数患者中，慢性中耳炎对耳蜗功能影响不大。
