Vestibular schwannoma presenting as sudden deafness

In this study, we analysed the clinical and audiological features of 24 vestibular schwannoma patients presenting with sudden deafness who visited our hospital within 10 days after its onset. The relationships between the prognosis of hearing loss and the clinical and audiological features including the pure-tone average (PTA), the presence of dizziness and/or vertigo, the tumour size and the auditory brain stem response (ABR) findings were evaluated. Hearing recovery depended on the PTA and tumour size, but even a small tumour induced sudden deafness. Impaired hearing completely recovered in five our of 24 patients. ABR findings indicated that the aetiology of sudden deafness in the vestibular schwannoma patients might vary in each patient.

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Outcome of using magnetic resonance imaging as an initial screen to exclude vestibular schwannoma in patients presenting with unilateral tinnitus

The Journal of Laryngology & Otology ◽

10.1017/s0022215100145293 ◽

1999 ◽

Vol 113 (9) ◽

pp. 818-822 ◽

Cited By ~ 8

Author(s):

P. J. D. Dawes ◽

H. E. Basiouny

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Vestibular Schwannoma ◽

Clinical Presentation ◽

Resonance Imaging ◽

Auditory Brain Stem Response ◽

Strong Argument ◽

Screening Guidelines ◽

Auditory Brain Stem ◽

Brain Stem Response

AbstractThe improved cost-effectiveness of gadolinium-enhanced magnetic resonance imaging (MRIg) as a diagnostic tool for vestibular schwannoma has resulted in smaller tumours being diagnosed. There has been a change in the clinical presentation of these tumours and up to four per cent may present with unilateral tinnitus. The limitation of auditory brain stem response (ABR) as a screening tool that detects small tumours is recognized and there is a strong argument for using MRIg as the initial investigation.Various screening guidelines have been proposed, some include submitting patients with unilateral tinnitus for MRIg. This report describes the findings in a group of 174 patients presenting with unilateral tinnitus who underwent MRIg as part of a guideline-directed screen to exclude vestibular schwannoma. Five patients had a cause for their tinnitus diagnosed, one a vestibular schwannoma. Two had intracranial aneurysms and another three had pathology revealed that merited onward referral. A further nine patients had incidental findings that neither accounted for their symptoms nor needed further investigation or referral.The rationale for screening these patients with MRIg is discussed.

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Auditory Brain Stem Response for Objective Measures of Hearing

Ear and Hearing ◽

10.1097/00003446-199302000-00004 ◽

1993 ◽

Vol 14 (1) ◽

pp. 23-30 ◽

Cited By ~ 46

Author(s):

Yvonne S. Sininger

Keyword(s):

Brain Stem ◽

Objective Measures ◽

Auditory Brain Stem Response ◽

Auditory Brain Stem ◽

Brain Stem Response

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Can auditory brain stem response accurately reflect the cochlear function?

Journal of Neurophysiology ◽

10.1152/jn.00233.2020 ◽

2020 ◽

Vol 124 (6) ◽

pp. 1667-1675

Author(s):

Dalian Ding ◽

Jianhui Zhang ◽

Wenjuan Li ◽

Dong Li ◽

Jintao Yu ◽

...

Keyword(s):

Brain Stem ◽

Damage Model ◽

Compound Action Potential ◽

Cochlear Function ◽

Auditory Brain Stem Response ◽

Threshold Difference ◽

Auditory Brain Stem ◽

Cochlear Damage ◽

Brain Stem Response ◽

Compound Action

Auditory brain stem response (ABR) is more commonly used to evaluate cochlear lesions than cochlear compound action potential (CAP). In a noise-induced cochlear damage model, we found that the reduced CAP and enhanced ABR caused the threshold difference. In a unilateral cochlear destruction model, a shadow curve of the ABR from the contralateral healthy ear masked the hearing loss in the destroyed ear.

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