PMID: 2508024Oct 1, 1989Paper

Usefulness of 1000 Hz tone-burst-evoked responses in the diagnosis of acoustic neuroma

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
S A Telian, P R Kileny

Abstract

The auditory brain stem response (ABR) has become widely recognized as a sensitive and cost-effective screening modality in neuro-otologic diagnosis. However, the audiometric characteristics of the test ear may obscure the interpretation of the click-evoked ABR, particularly in the face of high-frequency hearing loss. It is often unclear whether latency delays or absent responses are attributable to retrocochlear disease or simply to the magnitude of the patient's hearing loss. The acoustic click stimulus commonly used in ABR testing activates predominantly the basilar membrane in the 2000 to 4000 Hz range. Because many cochlear and retrocochlear processes are associated mainly with hearing loss in this range, we have found it helpful in selected cases to use 1000 Hz tone-burst stimuli to circumvent the effects of elevated hearing thresholds on the ABR. In this article, our experience with the use of 1000 Hz nonlinearly gated tonebursts in 17 patients with acoustic neuroma is presented.

References

Apr 1, 1977·Archives of Otolaryngology·W A Selters, D E Brackmann
Mar 1, 1988·Journal of Speech and Hearing Research·M P GorgaW Jesteadt

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Citations

Jul 13, 2000·Ear and Hearing·H K El-KashlanP R Kileny
May 9, 2009·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·James L StoneJohn R Hughes

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