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:: Volume 21, Issue 1 (30 2012) ::
aud 2012, 21(1): 8-16 Back to browse issues page
Correlation between acoustically evoked short latency negative response and vestibular evoked myogenic potentials in children with profound sensorineural hearing-loss
Zahra Jafari 1, Saeed Malayeri2, Nima Rezazadeh2, Farideh HajiHeydari3
1- Rehabilitation Rehabilitation Research Center, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
2- Department of Audiology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
3- Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
Abstract:   (7291 Views)

Background and Aim: Vestibular evoked myogenic potentials and acoustically evoked short latency negative response are two non-cochlear responses with probably saccular origin. The present study was conducted to determine the percentage of presence and the relation between these two responses in children with hearing loss.
Methods: Thirty children with profound congenital sensorineural hearing loss were studied.  Vestibular evoked myogenic potentials ellicitedby tone burst stimuli and acoustically evoked short latency negative response ellicited by click stimuli were recorded. Both responses were recorded at air conduction threshold level monaurally via an internal receiver.
Results: Vestibular evoked myogenic potentials in 53.3% of children and acoustically evoked short latency negative response in 40.0% of cases were recorded. There was a significant correlation between the percentage of recording these two responses (p=0.005). Gender and the stimulated ear had no effect on the results.
Conclusion: In almost half of these disabled children, both vestibular evoked myogenic potentials and acoustically evoked short latency negative response were recoreded. This finding may both indicate that hearing loss has no effect on the function of otolith organs in some children and vestibular deficits probably exist along with hearing impairment in others. This findng reiterates the importance of evaluation of vestibular system as part of standard auditory evaluations.

Keywords: Vestibular evoked myogenic potentials, acoustically evoked short latency negative response, profound hearing loss, Saccule
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Type of Study: Research |
Received: 2011/05/11 | Accepted: 2011/10/30 | Published: 2013/10/14
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Volume 21, Issue 1 (30 2012) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
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