Acquired auditory neuropathy spectrum disorder after an attack of chikungunya: case study
Autor(es): Prabhu Prashanth
Resumo: 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 underst-ing speech, tinnitus - 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 - it was persistent causing significant h-icap to him based on self report tinnitus h-icap questionnaire results. The results of depression, anxiety - stress scale also suggested symptoms of mild depression - anxiety. Chikungunya virus is suspected to be neurotropic in nature which can damage auditory nerve cells - may have caused ANSD. The result also shows presence of tullio's phenomenon - absence of cervical vestibular evoked myogenic potentials suggesting damage to the vestibular neuronal system. The possible pathophysiology of chikungunya virus causing ANSD - vestibular symptoms needs to be explored further in future studies.
Palavras-Chave: Anxiety; Auditory neuropathy spectrum disorder; Chikungunya; Depression; Tinnitus; Tullio's phenomenon
Imprenta: European Archives of Oto-Rhino-Laryngology, v. 273, n. 1, p. 257-261, 2016
Identificador do objeto digital: 10.1007/s00405-015-3578-9
Descritores: Chikungunya virus - Cell ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission
Data de publicação: 2016
