|||  Journal title: Audiology | Publisher: Tehran University of Medical Sciences | Website: http://aud.tums.ac.ir | Email: aud@tums.ac.ir   |||
   [Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Registration :: Submission :: Current Issue :: Archive :: Contact :: Search ::
:: Volume 20, Issue 1 (27 2011) ::
aud 2011, 20(1): 1-8 Back to browse issues page
Electrophysiologic and behavioral assessment of hearing status in children with spastic diplegia
Nima Rezazade 1, Mehdi Akbari 1, Mohsen Ahadi 1, Hossein Karimi 2, Faranak AliAbadi 3, Mohammad Kamali 4
1- Department of Audiology, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
2- Paediatrics Neuro-Rehabilitation Research Center, University of Welfare and Rehabilitation Sciences, Tehran, Iran
3- Department of Occupationaltherapy, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
4- Department of Rehabilitaion Management, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
Abstract:   (6889 Views)

Background and Aim: High incidence of speech disorders in children with cerebral palsy could be related to a deficiency in processing of auditory stimuli. So it is vital to check out any peripheral or central disorders in auditory system using behavioral and electrophysiological auditory tests.
Methods: In a cross-sectional study, 15 children with spastic diplegia, mean age 5.77, SD 2.26 years, and 15 normal children, mean age 5.33, SD 1.80 years, were tested using pure tone audiometry, immittance and auditory brainstem responses. The results were compared between the two groups.
Results: Hearing thresholds and middle ear status were in normal range in all participants however, contralateral acoustic reflex thresholds were mostly elevated. Comparing absolute latency and interpeak latency intervals of auditory brainstem responses between the two groups, absolute latency interval of later waves, and in specific the V wave, was significantly longer in diplegic children (p=0.04) resulting in a longer III-V interpeak latency intervals (p=0.02).
Conclusion: Neurological disorders in ponto-reticulo-spinal pathway, pontine reticular nuclei and upper pons which are adjacent to auditory nuclei of lateral leminiscus and inferior colliculus result in auditory dys-synchrony and increased latency intervals in latter waves of auditory brainstem responses. This could also attributed to functional disorders in wave-generating sites in these patients.

Keywords: Auditory brainstem responses, spastic diplegia, hearing status
Full-Text [PDF 206 kb]   (1839 Downloads)    
Type of Study: Research |
Received: 2010/06/26 | Accepted: 2010/12/1 | Published: 2013/10/12
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA code


XML   Persian Abstract   Print



Volume 20, Issue 1 (27 2011) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
Creative Commons Attribution-NonCommercial 3.0

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.

Persian site map - English site map - Created in 0.28 seconds with 32 queries by YEKTAWEB 3781