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Incidence of hearing loss in infants at risk

Authors:Bhagya V, Brid S.V, Mahesh . Doddamani
Int J Biol Med Res. 2011; 2(4): 1102 – 1105  |  PDF File

Abstract

The present study was done to know the incidence of hearing impairment in infants at risk. After sedation & preparation of babies with history of preterm delivery, neonatal jaundice, neonatal convulsions, birth asphyxia, low birth weight (<1500gm) & with congential anomalies of ears,they were tested for brainstem evoked responses using RMS EMG. EP MARK –II machine which is a fully computerized machine. Incidence of significant hearing loss was 46.66% & by this study we can observe that infants exposed to risk factors like preterm delivery, neonatal jaundice, neonatal convulsions, birth asphyxia & LBW are prone for some hearing abnormality. Among these risk factors in our study we observed neonatal convulsions, birth asphyxia & neonatal jaundice carry a very high risk of hearing abnormality. So this hearing impairment has to be detected in the early stages & proper rehabilitative measures are taken at the earliest so that further developmental milestones are not delayed . BERA (brainstem evoked response audiometry) as a screening procedure will give an idea of degree of hearing impairment .