J Am Acad Audiol 2022; 33(04): 224-231
DOI: 10.1055/a-1772-4866
Research Article

Simultaneous Multifrequency (SiMFy) Stimulus: A Novel and Reliable Stimulus for Frequency Tuning of Ocular Vestibular-Evoked Myogenic Potentials

Niraj Kumar Singh
1   Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Mysore, Karnataka, India
,
Mamatha Hunsur Ravikumar
1   Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Mysore, Karnataka, India
,
Sandeep Maruthy
1   Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Mysore, Karnataka, India
› Author Affiliations
Funding The study was not funded by any funding agency

Abstract

Background Frequency tuning of ocular vestibular evoked myogenic potential (oVEMP) refers to the frequency of tone burst that produces the largest amplitude oVEMP. There is an ever-growing pool of published studies that found the frequency tuning of oVEMP distinctly different in Ménière's disease than the age-matched controls and benign paroxysmal positional vertigo. However, recording oVEMP in response to many frequencies makes an already lengthy vestibular test battery even more cumbersome and time-consuming.

Purpose The aim of this study was to develop a novel time-saving stimulus that produces reliable results.

Research Design Prospective study.

Study Sample The study included 25 young, healthy adults.

Data Collection The tone-bursts of 2000, 1500, 1000, 750, 500, and 250 Hz were generated and sequenced in this order to prepare a stimulus for simultaneous multifrequency (SiMFy) oVEMP. The response parameters of SiMFy and conventional oVEMP methods were compared.

Results No significant difference in peak-to-peak amplitude and frequency tuning existed between conventional and SiMFy oVEMP (p > 0.05). SiMFy had better test–retest reliability and was less time-consuming than the conventional oVEMP.

Conclusions SiMFy is a time-saving and reliable stimulus for obtaining frequency tuning of oVEMP with no compromise on the outcomes. It can be immediately applied in most commercially available evoked potential systems with a facility for loading an external stimulus.

List of Abbreviations

SiMFy: Simultaneous multi-frequency


oVEMP: Ocular vestibular evoked myogenic potential


cVEMP: Cervical vestibular evoked myogenic potential


BPPV: Benign paroxysmal positional vertigo


SCD: Superior canal dehiscence


ABR: Auditory brainstem response


dBHL: Decibel hearing level


dB peSPL: Decibel peak sound pressure level


ICC: Intraclass correlation coefficient


Ethics Approval

The method used in the study was approved by the institutional review board.


Consent to Participate

Before testing, each participant was described regarding the experiment, and subsequently, written consent for participation was obtained.


Paper Presentation

This study is a part of the paper presented at the 50th Annual Convention of the Indian Speech and Hearing Association held at Mysore, India, January 5–7, 2018.


Disclaimer

Any mention of a product, service, or procedure in the Journal of the American Academy of Audiology does not constitute an endorsement of the product, service, or procedure by the American Academy of Audiology.




Publication History

Received: 08 September 2021

Accepted: 04 February 2022

Accepted Manuscript online:
15 February 2022

Article published online:
06 December 2022

© 2022. American Academy of Audiology. This article is published by Thieme.

Thieme Medical Publishers, Inc.
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA

 
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