Hearing Status in Neonatal Hyperbilirubinemia by Auditory Brain Stem Evoked Response and Transient Evoked Otoacoustic Emission

  • Mohammad Hossein Baradaranfar Department of Otolaryngology, Head and Neck Surgery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Saeid Atighechi Department of Otolaryngology, Head and Neck Surgery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Mohammad Hossein Dadgarnia Department of Otolaryngology, Head and Neck Surgery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Rozita Jafari Department of Otolaryngology, Head and Neck Surgery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  • Ghasem Karimi Department of Otolaryngology, Head and Neck Surgery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Abolfazl Mollasadeghi Department of Audiology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Zia Eslami Department of Pediatrics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Amin Baradarnfar Student of Medical School, Tehran University of Medical Sciences, Tehran, Iran.
Keywords: Hyperbilirubinemia, Auditory brain stem evoked response, Otoacoustic emissions spontaneous, Auditory neuropathy

Abstract

Hyperbilirubinemia at neonatal period is one of the major deteriorating factors of the auditory system. If left untreated, it may cause certain cerebral damage. This study aims to evaluate the impact of hyperbilirubinemia on the hearing of neonate. This study was conducted on 35 newborn babies with jaundice (bilirubin more than 20 mg/dL). Auditory brainstem response (ABR) and transient evoked otoacoustic emission (TEOAE) tests were performed, after treatment and one year after. ABR test results indicated that 26 children (74.3%) had normal hearing but 9 (25.7%) suffered from an impairment. As for TEOAE test, 30 children (85.7%) passed whereas the remaining (14.3%) seemed to be failures. The comparative results of the two tests pointed to autonomic neuropathy /autonomic dysreflexia symptoms in 5 babies. Due to the high incidence of Autonomic neuropathy/autonomic dysreflexia among hyperbilirubinemic babies, screening in this regard seems reasonable. Our result emphasizes the necessity of more experiments on the afflicted areas.

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How to Cite
1.
Baradaranfar MH, Atighechi S, Dadgarnia MH, Jafari R, Karimi G, Mollasadeghi A, Eslami Z, Baradarnfar A. Hearing Status in Neonatal Hyperbilirubinemia by Auditory Brain Stem Evoked Response and Transient Evoked Otoacoustic Emission. Acta Med Iran. 49(2):109-112.
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