Pirodda E, Modugno G C, Buccolieri M
ENT Clinic, University of Bologna, Italy.
Acta Otolaryngol. 1995 May;115(3):427-32. doi: 10.3109/00016489509139342.
The behaviour of bone conduction audiograms in the operated and non-operated ears of 200 otosclerotic patients was analysed. The majority (84%) of both operated and unoperated ears showed virtually unchanged bone conduction thresholds throughout the follow-up period (mean follow-up period = 13.4 +/- 5.3 years). Slight but statistically significant bone conduction deterioration was observed in the remaining 16% of cases, most frequently in the non-operated ears. However, this deterioration was generally within the usually accepted limits of the Carhart effect, and does not demonstrate the presence of any causative factor other than evolution of the ostosclerotic disease. Our findings do not support the hypothesis that total stapedectomy per se may be responsible for sensorineural deterioration.
分析了200例耳硬化症患者手术耳和未手术耳的骨导听力图表现。在整个随访期间（平均随访期 = 13.4 ± 5.3年），手术耳和未手术耳中的大多数（84%）骨导阈值几乎没有变化。在其余16%的病例中观察到轻微但具有统计学意义的骨导恶化，最常见于未手术耳。然而，这种恶化通常在卡哈特效应通常公认的范围内，并且没有表明除耳硬化症病情发展之外存在任何致病因素。我们的研究结果不支持镫骨全切除术本身可能导致感音神经性恶化的假设。
