The evaluation of the hearing screening program in newborn at risk

The Evaluation of The Hearing Screening Program in Newborn at Risk This study has been performed for the evaluation of hearing screening program in neonates at risk to find the most practical and reliable test protocol. This study was carried out with 100 newborn infants in the Neonatal Intensive Care Unit. Tympanometric evaluation, TEOAE (Transient Otoacoustic Emission), DPOAE (Distortion Product Otoacoustic Emission) and A-ABR(Automated Auditory Brainstem Response) measurements were performed in the newborns before discharging from the hospital. Before the audiolgical evaluation, the story of the baby before and after the birth time have been performed to explore the risk factors that have been identified. Statistical analysis of the data obtained 'SPSS for Windows version 17.0' 'was conducted using the software. 51% of infants (n = 51) were male, 49% (n = 49) were female. The average birth weight of babies 2723.7 ± 790.2 g, mean gestational age of 36.3 ± 2.9 and test age (in days) was found to be 11.0 ± 8.3 average. Low frequency and high frequency tympanometry measurement performed for babies, for both ears with high frequency tympanometry more Type B (left) tympanogram was obtained. 78% pass rate for TEOAE practice in the left ear, right ear for 75%, 87% pass rate for the left ear DPOAE application was found to be 90% for the right ear. A-ABR application for both ears, pass rate of 80%, refer ratio was found to be 20%. DPOAE and TEOAE combinations compared to the combination of A-ABR and more baby auditory neuropathy symptoms were observed. The most abundant of which are risk factors in infants enrolled in the study, the ototoxic (46%), hyperbilirubinemia (44%) and prematurity (40%) which was determined. Ototoxic to, prematurity, family history of hearing loss, low birth weight, kraniofacial syndrome abnormalities and the presence of concomitant risk of hearing loss were significant risk factors for hearing loss. However, despite the high incidence, hyperbilirubinemia and consanguineous marriages were not significant risk factors for hearing loss. As a result; in uncovering the more common middle ear pathology in risky newborns and prevention of false positive results was concluded that low-frequency tympanometry is better than the high frequency tympanometry. Hearing screening those at risky newborns, especially if these groups were frequent auditory neuropathy to detect the disorder first A-ABR of the use and test result fails, the right of use combined with DPOAE reliable and we can suggest it would be a rapid screening protocol. Keywords: Hearing Screening, Risky Newborn, High Frequency Tympanometry, Distortion Product Otoacoustic Emission, Risk Factors.