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Acquired auditory neuropathy spectrum disorder after an attack of chikungunya: case study

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Abstract

Auditory neuropathy spectrum disorder (ANSD) is a retrocochlear disorder in which the cochlear functioning is normal but the transmission in the auditory neural pathway is affected. The present study reports of a 14-year-old teenager with acquired ANSD after an attack of chikungunya. He reported symptoms of difficulty in understanding speech, tinnitus and vertigo when exposed to loud sounds. The audiological characteristics suggested auditory neuropathy spectrum disorder with raising audiogram configuration. The results of tinnitus evaluation showed low-pitched tinnitus and it was persistent causing significant handicap to him based on self report tinnitus handicap questionnaire results. The results of depression, anxiety and stress scale also suggested symptoms of mild depression and anxiety. Chikungunya virus is suspected to be neurotropic in nature which can damage auditory nerve cells and may have caused ANSD. The result also shows presence of tullio’s phenomenon and absence of cervical vestibular evoked myogenic potentials suggesting damage to the vestibular neuronal system. The possible pathophysiology of chikungunya virus causing ANSD and vestibular symptoms needs to be explored further in future studies.

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Acknowledgments

The authors acknowledge with gratitude Prof. S. R. Savithri, Director, All India Institute of Speech and Hearing, Mysore for permitting to conduct the study at the institute. The authors also like to acknowledge the participant and his parents for their co-operation.

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The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

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Authors and Affiliations

  1. Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Naimisham Campus, Mysore, 570006, Karnataka, India

    Prashanth Prabhu

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  1. Prashanth Prabhu
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Correspondence to Prashanth Prabhu.

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Prabhu, P. Acquired auditory neuropathy spectrum disorder after an attack of chikungunya: case study. Eur Arch Otorhinolaryngol 273, 257–261 (2016). https://doi.org/10.1007/s00405-015-3578-9

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  • DOI: https://doi.org/10.1007/s00405-015-3578-9

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