One might hypothesize that VEMPs would be largely normal in Meniere's disease, but reduced after intra (trans) tympanic gentamicin. Gentamicin reduces VEMP's systemically, and should logically also reduce VEMP's after local administration.
This case illustrates such a situation:
Prior to gentamicin (low-dose), this man had a 14 difference between ears.
One year later, he had a 63 % difference between ears.
Thus, this example shows that there was a substantial reduction in the VEMP amplitude for this particular individual.
He had a very good outcome with no additional attacks of vertigo.
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