Campbell P E, Harris C M, Hendricks S, Sirimanna T
Plymouth Institute of Neuroscience, Plymouth University, Plymouth, UK.
J Laryngol Otol. 2004 Feb;118(2):117-22. doi: 10.1258/002221504772784568.
The contribution of air conduction auditory brainstem response (AC-ABR) testing in the paediatric population is widely accepted in clinical audiology. However, this does not allow for differentiation between conductive and sensorineural hearing loss. The purpose of this paper is to review the role of bone conduction auditory brainstem responses (BC-ABR). It is argued that despite such technical difficulties as a narrow dynamic range, masking dilemmas, stimulus artifact and low frequency underestimation of hearing loss, considerable evidence exists to suggest that BC-ABR testing provides an important contribution in the accurate assessment of hearing loss in infants. Modification of the BC-ABR protocol is discussed and the technical difficulties that may arise are addressed, permitting BC-ABR to be used as a tool in the differential diagnosis between conductive and sensorineural hearing. Two relevant case studies are presented to highlight the growing importance of appropriate management in early identification of hearing loss. It can be concluded that BC-ABR should be adopted as a routine clinical diagnostic tool.
气导听觉脑干反应（AC-ABR）测试在儿科人群中的作用在临床听力学中已得到广泛认可。然而，这无法区分传导性听力损失和感音神经性听力损失。本文的目的是综述骨导听觉脑干反应（BC-ABR）的作用。有人认为，尽管存在诸如动态范围窄、掩蔽难题、刺激伪迹以及低频听力损失低估等技术困难，但有大量证据表明，BC-ABR测试在准确评估婴儿听力损失方面发挥着重要作用。文中讨论了BC-ABR测试方案的修改，并解决了可能出现的技术难题，使BC-ABR能够作为区分传导性听力损失和感音神经性听力损失的诊断工具。文中给出了两个相关案例研究，以突出早期识别听力损失时适当管理的重要性日益增加。可以得出结论，BC-ABR应作为一种常规临床诊断工具采用。
