Mei Ling, Chen Xiangping, Yang Jun
Hearing and Vertigo Center，Xinhua Hospital，Medical School of Shanghai Jiaotong University，Shanghai，200092，China.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2021 Jan 5;35(1):14-16. doi: 10.13201/j.issn.2096-7993.2021.01.003.
To explore the characteristics of hearing loss in patients with cochlear nerve aphasia（CNA） and to provide evidences for diagnosis and treatment of cochlear nerve aphasia. A retrospective study was performed. A total of 51 cases were included in the study. The data of hearing test, inner auditory canal MRI and temporal HRCT were analyzed. 77.19% of the affected ears had extremely severe hearing loss, and 7.02% of the affected ears had moderate hearing loss. The residual hearing was concentrated in low-medium frequency. A CNA ear with bone cochlear nerve canal atresia can exhibited moderate hearing loss. The patient with CNA may still present residual hearing function. CNA could not be excluded in patients with moderate hearing loss. The "three-dimensional integration" comprehensive evaluation system, which includesinternal auditory canal MRI, temporal thin-layer CT scan and audiology evaluation, could be helpful to the diagnosis of cochlear nerveaphasia.
探讨蜗神经失语症（CNA）患者听力损失的特点，为蜗神经失语症的诊断和治疗提供依据。进行了一项回顾性研究。共纳入51例研究对象。分析听力测试、内听道MRI和颞骨HRCT的数据。77.19%的患耳为极重度听力损失，7.02%的患耳为中度听力损失。残余听力集中在中低频。骨蜗神经管闭锁的CNA耳可表现为中度听力损失。CNA患者仍可能存在残余听力功能。中度听力损失患者不能排除CNA。包括内听道MRI、颞骨薄层CT扫描和听力学评估的“三维整合”综合评估系统有助于蜗神经失语症的诊断。
