Arcand P, Desrosiers M, Dubé J, Abela A
ENT Service, Sainte-Justine Hospital, Montreal, Quebec, Canada.
J Otolaryngol. 1991 Aug;20(4):247-50.
Sensorineural hearing loss, associated with a dilated vestibular aqueduct, is often described as progressive. Since 1982, computed tomography of the mastoids has become part of the routine investigation of deaf children at Sainte-Justine Hospital. Using clinical, audiometric and radiological material from 130 patients with sensorineural hearing loss, we identified 18 patients with enlarged vestibular aqueducts. The large vestibular aqueduct population was then compared to the normal vestibular aqueduct patients in regard to the degree and evolution of the sensorineural hearing loss. Progression of hearing loss was noted in 46% of patients in the presence of large vestibular aqueducts as compared to 35% in the absence of this anomaly. Normal radiographic findings did not exclude the possibility of further hearing loss.
与扩大的前庭导水管相关的感音神经性听力损失通常被描述为进行性的。自1982年以来，乳突计算机断层扫描已成为圣贾斯汀医院对失聪儿童进行常规检查的一部分。利用130例感音神经性听力损失患者的临床、听力测定和放射学资料，我们确定了18例前庭导水管扩大的患者。然后将大前庭导水管患者群体与正常前庭导水管患者在感音神经性听力损失的程度和进展方面进行比较。与无此异常的患者中35%相比，存在大前庭导水管的患者中有46%出现听力损失进展。正常的放射学检查结果并不能排除进一步听力损失的可能性。
