低频感音神经性听力损失的病因分析  

56 Cases with Low Frequency Sensorineural Hearing Loss:Assessment and Analysis

作　　者：李富德[1] 梁瑞敏[1] 陈晨[1] 

机构地区：[1]天津市第一中心医院耳鼻咽喉科,天津300192

出　　处：《听力学及言语疾病杂志》2010年第1期19-22,共4页Journal of Audiology and Speech Pathology

摘　　要：目的分析低频感音神经性听力损失的病因,以避免漏诊和误诊。方法对56例低频感音神经性听力损失患者详细了解其病史,进行仔细的耳科常规检查及纯音听阈(PTT)、声导抗、听性脑干反应(ABR)、畸变产物耳声发射(DPOAE)、耳蜗电图(ECochG)及CT和/或MRI检查,综合分析各项结果。结果在56例患者中病因不明的急性低频感音神经性听力损失38例,梅尼埃病9例,听神经病6例,听神经瘤1例,多发性硬化1例,小脑半球旁蛛网膜囊肿1例。结论低频听阈升高的上坡型感音神经性听力损失可见于多种疾病。对低频感音神经性听力损失应采用多项组合的听力学检测方法进行检查和综合分析,必要时辅以CT和/或MRI检查可以及时、有效地作出可靠的诊断和鉴别诊断。Objective The diagnosis of low frequency sensorineural hearing loss is examined for clinical applications.Methods Pure tone threshold （PTT）,acoustic impedance,auditory brainstem response（ABR）,distortion product otoacoustic emissions（DPOAE）,electrocochleogram（ECochG） and imaging examinations of CT or MRI were performed on 56 cases with low frequency sensorineural hearing loss.Results Among 56 cases of low frequency sensorineural hearing loss,38 cases with sudden low frequency sensorineural hearing loss,9 with Meniere＇s disease,6 as auditory neuropathy,1 case of acoustic neuroma,1 case of multiple sclerosis and 1 case with arachnoid cyst of cerebellar hemisphere surface.Conclusion Low frequency sensorineural hearing losses occurred in varied diseases.A comprehensive approach should be taken to diagnose this hearing loss and if necessary,CT or MRI can be utilized to confirm the standard audiologic evaluations.

关 键 词：感音神经性听力损失 纯音听阈 低频 病因 

分 类 号：R764.431[医药卫生—耳鼻咽喉科]