Open AccessVestibular evoked myogenic potentials (VEMPs) in young children: Test parameters and normative data
Author(s) -
Iman Sadek El-Danasoury,
G. El Sirafy,
Hesham Taha,
Salah Hegazy
Publication year - 2015
Publication title -
egyptian journal of ear nose throat and allied sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.108
H-Index - 8
eISSN - 2090-3405
pISSN - 2090-0740
DOI - 10.1016/j.ejenta.2014.09.002
Subject(s) - vestibular evoked myogenic potential , audiology , vestibular system , vestibular nerve , medicine , saccule , tone burst , sternocleidomastoid muscle , psychology , anatomy
Objective: To standardize the results of vestibular evoked myogenic potentials (VEMPS) in young children.Methodology: The study group consisted of thirty-two children, their age ranged between 3 and 12 years with no history of systemic or local inner ear disorder and not suffering from either vestibular or musculo-skeletal disorder. Full neuro-otological history was taken followed by audiological evaluation. VEMP was recorded from the sternomastoid muscle, using alternating acoustic clicks presented at 90 dB nHL, at a rate of 5 Hz, analysis time was 50 ms. Two hundred sweeps were collected, amplified and recorded with band pass filter of 10 Hz to 1.5 kHz.Results: VEMP was recorded in all children waves. PI and NI were identified in all children while PII and NII were identified in 10.7% only. Difficulties were met while trying to evaluate younger ones less than 5 years as they were restless when they were evaluated with sedation, this resulted in the absence of response due to reduced muscle tone. Differences in latencies and amplitudes should be considered as latencies were shorter and amplitudes were lesser than those obtained in adults.Conclusion: VEMP could be applied as a complementary test to evaluate saccular and inferior vestibular nerve function in children