Normalization of masseter VEMP and comparison with cervical VEMP in normal individuals

Abstract

Objectıve: The objective of this study is to obtain normative data of the masseter vestibular-evoked myogenic potential (mVEMP) test in healthy individuals without hearing loss and dizziness and to compare the responses with the cVEMP test. Methods: Twenty healthy individuals (10 males and 10 females) aged 20–30 years without auditory and vestibular disorders participated in the study. First, mVEMP and then cVEMP tests were applied to the individuals who voluntarily participated in the study. Results: Latency values of the air-conducted mVEMP were 15.90 ± 1.68 ms for P1 and 25.86 ± 1.48 ms for N1 and 9.96 ± 1.50 ms for interpeak latencies. P1N1 amplitude value was 97.89 ± 37.34 ?V and asymmetry ratio (AR) was 0.13 ± 0.07. The normative data for the mVEMP threshold was found 84 dB nHL. According to the gender difference in mVEMP measurement parameters, the P1 latency of women was found shorter than the P1 latency of men at all stimulus intensities except 90 dB nHL. There was no statistically significant difference between mVEMP and cVEMP test results in all other severity and all parameters except P1 latency at 100 dB and interpeak latency at 100 dB (p > 0.05). Conclusıon: In conclusion, it was the study findings suggest that obtaining normative data on mVEMP could be used as an auxiliary test in the evaluation of the vestibular and trigeminal pathway and the evaluation of patients with various peripheral and central vestibular disorders.