Impact of subject's position and acoustic stimulus type on vestibular evoked myogenic potentials (VEMPs) in normal subjects.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

PubMedID: 24986426

Sánchez-Andrade IV, Soto-Varela A, Labella Caballero T, Gayoso Diz P, Santos-Pérez S. Impact of subject's position and acoustic stimulus type on vestibular evoked myogenic potentials (VEMPs) in normal subjects. Eur Arch Otorhinolaryngol. 2014;.
Vestibular evoked myogenic potentials (VEMPs) are currently considered a diagnostic tool for studying the vestibular system, specifically the saccule and inferior vestibular nerve. This prospective study aimed at evaluating the impact of patient position and type of acoustic stimulus on VEMPs results using 60 healthy subjects who underwent otoscopy, pure tone audiometry and VEMPs in different conditions affecting their position and the type of acoustic stimulus. Corrected amplitude is significantly greater when the patient is seated and latency difference and amplitude asymmetry do not change with either patient position or type of stimulus. The results obtained in different test conditions are not comparable. Being seated is the most appropriate position for the test.