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Comparison of vestibular evoked myogenic potentials elicited by click and short duration tone burst stimuli

Published online by Cambridge University Press:  19 October 2010

K Kumar ,
S Kumar Sinha ,
A Kumar Bharti  and
A Barman
K Kumar
Affiliation:
All India Institute of Speech and Hearing, Naimisham Campus, Manasagangothri, University of Mysore, Mysore, India
S Kumar Sinha
Affiliation:
All India Institute of Speech and Hearing, Naimisham Campus, Manasagangothri, University of Mysore, Mysore, India
A Kumar Bharti
Affiliation:
All India Institute of Speech and Hearing, Naimisham Campus, Manasagangothri, University of Mysore, Mysore, India
A Barman*
Affiliation:
Department of Audiology, All India Institute of Speech and Hearing, Naimisham Campus, Manasagangothri, University of Mysore, Mysore, India
*
Address for correspondence: Dr Animesh Barman, Reader, Department of Audiology, All India Institute of Speech and Hearing, Naimisham Campus, Manasagangothri, Mysore 6, India Fax: +91-821-2510515 E-mail: nishiprerna@rediffmail.com
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Abstract

Introduction:

Vestibular evoked myogenic potentials are short latency electrical impulses that are produced in response to higher level acoustic stimuli. They are used clinically to diagnose sacculocollic pathway dysfunction.

Aim:

This study aimed to compare the vestibular evoked myogenic potential responses elicited by click stimuli and short duration tone burst stimuli, in normal hearing individuals.

Method:

Seventeen subjects participated. In all subjects, we assessed vestibular evoked myogenic potentials elicited by click and short duration tone burst stimuli.

Results and conclusion:

The latency of the vestibular evoked myogenic potential responses (i.e. the p13 and n23 peaks) was longer for tone burst stimuli compared with click stimuli. The amplitude of the p13–n23 waveform was greater for tone burst stimuli than click stimuli. Thus, the click stimulus may be preferable for clinical assessment and identification of abnormalities as this stimulus has less variability, while a low frequency tone burst stimulus may be preferable when assessing the presence or absence of vestibular evoked myogenic potential responses.

Keywords

Vestibular Function TestsVestibular Evoked Myogenic PotentialsInner EarSaccule
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 4 , April 2011 , pp. 343 - 347
Copyright
Copyright © JLO (1984) Limited 2010

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