CAJ | 학술논문

目的探讨听神经病在纯音听阈测听及声导抗检查中的临床听力学特点及诊断要点.方法回顾性分析中山大学附属第三医院耳鼻喉科收治的17例(32耳)听神经病确诊患者在纯音听阈测听、声导抗检查中的听力学特点.结果 17例患者中15例为双侧发病,呈左右对称性听力曲线;26耳以轻至中度低频感音性聋为主(听力图上升型);病程<5年的听力损失主要为轻度、中度听力障碍(17/32耳),病程>5年的听力损失主要为重度、极重度听力障碍.16例(31耳)声导抗为"A"型鼓室图,15例(30耳)同侧及交叉镫骨肌声反射均未引出,2例(2耳)镫骨肌声反射阈值升高.结论听神经病在纯音听阔测听及声导抗检查中主要表现为:(1)为双侧对称性、渐进性听力下降;(2)早期为低频上升型听力图,后期为全频听力下降;(3)呈"A"型鼓室图,镫骨肌声反射阈值升高或引不出;(4)患耳无响度重振现象.
목적 탐토은신경병재순음은역측은급성도항검사중적림상은역학특점급진단요점.방법 회고성분석중산대학부속제삼의원이비후과수치적17례(32이)은신경병학진환자재순음은역측은、성도항검사중적은역학특점.결과 17례환자중15례위쌍측발병,정좌우대칭성은력곡선;26이이경지중도저빈감음성롱위주(은력도상승형);병정<5년적은력손실주요위경도、중도은력장애(17/32이),병정>5년적은력손실주요위중도、겁중도은력장애.16례(31이)성도항위"A"형고실도,15례(30이)동측급교차등골기성반사균미인출,2례(2이)등골기성반사역치승고.결론 은신경병재순음은활측은급성도항검사중주요표현위:(1)위쌍측대칭성、점진성은력하강;(2)조기위저빈상승형은력도,후기위전빈은력하강;(3)정"A"형고실도,등골기성반사역치승고혹인불출;(4)환이무향도중진현상.
Objective To analyze the clinical characteristics of auditory neuropathy under pure tone audiometry and acoustic immitance examination.Methods Seventeen patients (32 ears) diagnosed as having auditory neuropathy were examined for audiology features by pure tone audiometry and acoustic immitance.Results Bilateral and symmetrical hearing loss was found in 15 patients and low-frequency sensorineural hearing loss was noted in 26 ears.Seventeen ears with a course of disease less than 5 years presented light or moderate dysaudia,and those with more than 5 years presented grave loss of aural comprehension.16 patients (31 ears) in the acoustic immitance examination showed type A tympanogram,and absence of stapedius muscle reflex was found in 15 patients (30 ears).The threshold of acoustic stapedius reflex increased in 2 patients (2 ears).Conclusion Auditory neuropathy primarily presents bilateral and symmetrical hearing loss,low-frequency hearing loss at the initial stage and total-frequency hearing loss finally,absence of stapedius muscle reflex and type A tympanogram,and absence of loudness recruitment phenomenon.