Bone Conduction Stimulated VEMP Using the B250 Transducer
Journal article, 2021

Objective: Bone conduction (BC) stimulation is rarely used for clinical testing of vestibular evoked myogenic potentials (VEMPs) due to the limitations of conventional stimulation alternatives. The aim of this study is to compare VEMP using the new B250 transducer with the Minishaker and air conduction (AC) stimulation.

Methods: Thirty normal subjects between 20 and 37 years old and equal gender distribution were recruited, 15 for ocular VEMP and 15 for cervical VEMP. Four stimulation conditions were compared: B250 on the mastoid (FM); Minishaker and B250 on the forehead (FZ); and AC stimulation using an insert earphone.

Results: It was found that B250 at FM required a statistically significant lower hearing level than with AC stimulation, in average 41 dB and 35 dB lower for ocular VEMP and cervical VEMP, respectively, but gave longer n10 (1.1 ms) and n23 (1.6 ms). No statistical difference was found between B250 at FM and Minishaker at FZ.

Conclusion: VEMP stimulated with B250 at FM gave similar response as the Minishaker at FZ and for a much lower hearing level than AC stimulation using insert earphones.

vestibular evoked myogenic potential

bone conduction

B250

Author

Karl-Johan Fredén Jansson

Chalmers, Electrical Engineering, Signal Processing and Biomedical Engineering, Biomedical Signals and Systems

Bo Håkansson

Chalmers, Electrical Engineering, Signal Processing and Biomedical Engineering, Biomedical Signals and Systems

Sabine Reinfeldt

Chalmers, Electrical Engineering, Signal Processing and Biomedical Engineering, Biomedical Signals and Systems

Ann-Charlotte Persson

University of Gothenburg

Mans Eeg-Olofsson

University of Gothenburg

Medical Devices: Evidence and Research

1179-1470 (ISSN)

Vol. 14 225-237

Subject Categories

Other Medical Engineering

Otorhinolaryngology

Pharmacology and Toxicology

DOI

10.2147/MDER.S317072

PubMed

34267559

More information

Latest update

7/28/2021