[Effect of the middle ear status on the recording of vestibular evoked myogenic potential--VEMP].
The aim of this study was to assess the effect of age on the recording of air- and bone-conducted vestibular evoked myogenic potential. Forty six young subjects were included in the study, ranging in age from 4 to 18 years. All of them underwent otoscopy, pure tone audiometry, tympanometry and air- and bone-conducted VEMP in response to click. Eighty six ears with normal hearing (pure tone average 20 dB) and type A and C1 tympanogram were studied. There were 2 groups according to age: group I--children aged 4-10 years--52 ears, group II--young subjects aged 11-18 years--34 ears. The threshold, the presence of correct waveform morphology of the response and the latency were evaluated. Above parameters were examined at 95 dB and 100 dB (nHL) air conducted click intensity and 60 dB (nHL) bone conducted click intensity. The age has no significant effect on the percentage of the recording of VEMP and the level of the response threshold with air stimulation, based on the performed studies. However, the age has effect on the prolongation of latency p13 and n23 both with air and bone stimulation. We paid attention to the lower percentage of the recording of bone-conducted VEMP in young subjects aged 11-18 years.
Kurzyna
Agnieszka
A
Klinika Otolaryngologii Dzieciecej AM w Białymstoku.
Hassmann-Poznańska
Elzbieta
E
Topolska
Małgorzata Maria
MM
D000158:Acoustic Impedance Tests / Q000379:methods; D000293:Adolescent; D001301:Audiometry, Pure-Tone; D001844:Bone Conduction / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D004432:Ear, Middle / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology*; D014724:Vestibular Function Tests; D014722:Vestibule, Labyrinth / Q000502:physiology*