Abstract
Introduction: Hearing impairment is one of the commonest congenital disabilities in the world. Early diagnosis is essential to minimize or to prevent the disability. There are many screening methods and protocols for newborn hearing screening. TEOAE has high sensitivity and less time consuming than DPOAE. DPOAE is highly specific but more time consuming than TEOAE. This study aims to compare the accuracy of DPOAE and TEOAE by using ABR evaluation on high risk newborn. Methods: This study was conducted on 1000 high risk newborns admitted to SCBU, CWH (Mandalay). Cases were selected with inclusion and exclusion criteria. The newborns after day 3 were screened with both DPOAE and TEOAE tests on every Monday, Wednesday and Friday. All included newborns underwent ABR confirmation at ENT Department, EENT Hospital (Mandalay). Result: For the 1000 left ears, DPOAE yielded 787 ‘pass’ and 213 ‘refer’. For the 1000 right ears, DPOAE yielded 776 ‘pass’ and 224‘refer’. For the 1000 left ears, 737 had passed TEOAE and 263 were not passed the test. For the 1000 right ears, 752 had passed TEOAE and 248 were referred. Sensitivity of DPOAE is 97.57% and specificity is 95.39%.False positive rate is 4.60% and false negative rate is 2.42%. Sensitivity of TEOAE is 96.49% and specificity is 90.60%. False positive rate is 9.39% and false negative rate is 3.50%. Conclusion: It can be concluded that TEOAEs are useful for universal newborn hearing screening because it has short duration with acceptable accuracy and DPOAEs are useful for high-risk neonates as a hearing screening test because of good correlation between DPOAE and threshold of wave V of ABR.
Highlights
Hearing impairment is one of the commonest congenital disabilities in the world
It can be concluded that transient-evoked OAEs (TEOAEs) are useful for universal newborn hearing screening because it has short duration with acceptable accuracy and distortion product OAEs (DPOAEs) are useful for high-risk neonates as a hearing screening test because of good correlation between DPOAE and threshold of wave V of auditory brainstem response (ABR)
In that sense, hearing loss referred to disabling hearing loss which is threshold of more than 40 dB on ABR test. Both DPOAE and TEOAE can be used as screening tool for newborn babies
Summary
Hearing impairment is one of the commonest congenital disabilities in the world. Early diagnosis is essential to minimize or to prevent the disability. TEOAE has high sensitivity and less time consuming than DPOAE. DPOAE is highly specific but more time consuming than TEOAE. This study aims to compare the accuracy of DPOAE and TEOAE by using ABR evaluation on high risk newborn. Hearing impairment is one of the commonest congenital disabilities in the world [1]. Infants are recognized as being at risk if there is a family history of permanent childhood hearing loss, in-utero infections such as rubella, cytomegalovirus, syphilis, toxoplasmosis and herpes or cranio-facial anomalies. The development of otoacoustic emission (OAE) tests and auditory brainstem response (ABR) testing has enabled the detection of a hearing loss present in the newborn period and has enabled habilitation to be started in the first few months of life [4]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
