HEARING SCREENING OF INFANTS IN NEONATAL UNIT, HOSPITAL UNIVERSITI SAINS MALAYSIA USING TRANSIENT EVOKED OTOACOUSTIC EMISSIONS
Loading...
Date
2001-11
Authors
MOHO KHAIRI, MD. DAUD
Journal Title
Journal ISSN
Volume Title
Publisher
Pusat Pengajian Sains Perubatan Universiti Sains Malaysia
Abstract
Objective: this prospective study reports on the prevalence of hearing
impairment in neonatal unit population (NICU graduates and less severe ill
infants). Design: from 15th February, 2000 to 15th March, 2000 and 15th
February, 2001 to 15th May, 2001, 401 neonates were screened with transient
evoked otoacoustic emissions (TEOAE) followed by second stage screening of
the infants who had failed the initial test. Results: 370 (92.27°.4,) infants passed
the primary screen for both ears. Eight (2%) infants failed one ear and twenty
three (5.74%) infants failed both ear, adding up to 7.740/0 planned for second
stage screening. Five out of twenty two infants who had come for the follow up
failed the screening resulting the prevalence of hearing impairment of 1.28%.
Craniofacial malformations, very low birth weight, ototoxic medication, stigmata I
syndromes associated with hearing loss and hyperbilirubinaemia at the level of
exchange tranfusion were identified to be independent significant risk factors for
hearing impairment. The mean total test time was 5.43 minutes. Poor apgar
score and mechanical ventilation of more than 5 days were not found to be
associated with hearing impairment in the present study population. Conclusion:
Hearing screening in high-risk neonates revealed a total of 1.28%, with hearing
loss. Significant risk factors were craniofacial malformations, very low birth
weight, ototoxic medication, stigmata I syndromes associated with hearing loss
and hyperbilirubinaemia at the level of exchange tranfusion. Other perinatal
complications did not significantly influence screening results indicating
improved perinatal handling in a neonatal population at risk for hearing
disorders.
Description
Keywords
Otorhinolaryngology , Head & Neck Surgery