scholarly journals Application of otoacoustic emissions and brainstem evoked response audiometry in newborn hearing screening

Author(s):  
Gangadhara K. S. ◽  
Amrutha V. Bhat ◽  
Sridhara S.

<p class="abstract"><strong>Background: </strong>Newborn hearing screening was conducted in a tertiary care hospital in a step by step manner using otoacoustic emissions (OAE) and brainstem evoked response audiometry (BERA) and details were recorded.</p><p class="abstract"><strong>Methods:</strong> A prospective institutional based study was conducted. All the newborns born in the hospital over a period of 18 months from December 2018 to May 2020 were considered in the study. Healthy newborns were screened bedside within 24 hours of delivery and NICU (Neonatal Intensive Care Unit) babies were screened in the NICU. Handheld OAE apparatus was used as the initial screening tool. A total of 3 OAEs were done for babies with a “refer” result in the OAEs, which were done 1 month apart. Babies with a “refer” in the third OAE were subjected for BERA.</p><p class="abstract"><strong>Results:</strong> A total of 14226 babies were screened at 24-48 hours of birth. Among them, 13,069 babies passed the first OAE screening in both ears. Remaining babies were referred for further follow-up. After subsequent follow-ups and successive testing, 11 babies were found to have hearing loss, which was diagnosed within 4-5 months of the child’s birth.</p><p class="abstract"><strong>Conclusions: </strong>Universal newborn hearing screening is the need of the day. OAE is an effective screening tool for newborn hearing loss. When complemented by BERA, majority of congenitally deaf babies can be diagnosed at a very early age. This helps in early intervention.</p>

Author(s):  
Veronica Kennedy

This chapter discusses Schulman-Galambos and Galambos’s paper on brainstem evoked response audiometry in newborn hearing screening including the design of the study (outcome measures, results, conclusions, and a critique).


2021 ◽  
Vol 29 (2) ◽  
pp. 189-195
Author(s):  
Vybhavi MK ◽  
Srinivas V

Introduction  The present study was devised to estimate the prevalence of neonatal hearing loss and document the importance of using DPOAE as a screening tool for identifying hearing loss in newborns. Materials and Methods This hospital based descriptive study was conducted from August 2018 to August 2019. A total of 928 newborn babies were included in the study. These newborn babies were subjected to hearing screening by distortion product otoacoustic emissions (DPOAE) at 24-72 hrs after birth. For pass cases, no further testing was done. For refer cases, repeat testing with DPOAE was done within 15-30 days. Newborns with refer result on repeat DPOAE testing were subjected to Brainstem evoked response audiometry (BERA) within 3 months to confirm hearing loss. Results Nine hundred and twenty eight newborn babies were screened by DPOAE. 851 newborns passed the first DPOAE hearing screening and 77 newborns gave refer result. 21 newborns were lost to follow-up. 56 newborns underwent repeat DPOAE testing and 5 newborns were referred for BERA. Amongst the 5 newborns who underwent BERA testing, one newborn was diagnosed with bilateral profound hearing loss. Hence, the prevalence of hearing loss of 1.08 per thousand newborn babies was estimated in this study. Conclusion Hearing screening of newborns using DPOAE followed by BERA in refer cases to confirm hearing loss is useful for early detection followed by timely intervention and rehabilitation.


2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Muhammed Ayas ◽  
Hakam Yaseen

Objectives. Newborn hearing screening (NHS) plays a critical role in early identification of hearing loss and subsequent early habilitation. Active parental involvement influences the success of NHS, particularly the initial NHS and follow-up. The current study reports the results of an NHS program in a cohort of babies born in a tertiary care hospital in Sharjah, United Arab Emirates (UAE). Further, it explores a two-stage NHS model to reduce false responses, thereby alleviating parental anxiety. Methods. Retrospective observational study was conducted for a period of five years from January 2017 to December 2020. NHS was done as a two-stage model. All the healthy newborn babies were screened using Automated Auditory Brainstem Response (AABR) by trained audiology professionals. Babies who failed the first NHS were followed up after two weeks. Further, babies that failed the follow-up NHS were sent for diagnostic hearing evaluation and intervention as necessary. Results. A total of 1821 newborn babies were screened during the study period. Eighty-one percent of babies passed the initial NHS. Four hundred and twenty-three (23.22%) babies were referred on the first NHS and were followed up after 2 weeks. Among these babies, 7.03% (24) failed second NHS. Nine (37.50%) of the 24 babies were confirmed to have hearing loss in both ears. The incidence of hearing loss in our cohort was 4.94 per 1000. Confirmed hearing loss was statistically higher in boys than girls ( p < 0.05 ) Conclusion. Current study was an attempt to report the emerging NHS data as part of the implementation of an NHS program. The study findings emphasize the need for a two-stage model of NHS to rule out false responses.


Author(s):  
Esra Dogru Huzmeli

The aim of the newborn hearing screening programme is early detection of hearing loss. Transient evoked otoacoustic emissions (TEOAE) and automised auditory brainstem response (A-ABR) are effective, objective and valuable test batteries for newborn hearing screening, and they should be used together. The purpose of this study is to determine which test battery is more accurate and can be used as the gold standard. A total of 933 newborn children were included in this study, of which 602 were girls and 331 boys. 622 of them were screened with TEOAE, while 311 with A-ABR. 31 of the newborn screened with A-ABR and 27 of those screened with TEOAE were referred in the hearing screening programme. The results showed that out of 933, 17 subjects had hearing loss. The hearing loss rate was 1.8%; 12 of the newborn screened with AABR and 5 of those screened with TEOAE had hearing loss. Keywords: Hearing loss, TEOAE, ABR, newborn hearing screening.


Author(s):  
Pradeep Kumar Singh ◽  
Nishant Kumar ◽  
Dheeraj Kumar ◽  
Nisha Shrivastava ◽  
Abhishek Kumar

Background: A child’s normal speech and language development depends on the ability to hear. Early detection of hearing loss by screening at or shortly after birth and appropriate intervention are critical to speech, language and cognitive development. Objectives were to describe socio-epidemiological profile of newborns for hearing loss screening by transient evoked oto-acoustic emissions (TEOAE) and brainstem evoked response audiometry (BERA) in Rajendra Institute of Medical Sciences (RIMS), Ranchi, Jharkhand, India during 18 months period (June 2015- November 2016), and to study association between hearing loss and risk factors.Methods: This prospective study was done on 4356 newborns for hearing screening by TEOAE in maternity ward and NICU and BERA in those noted “refer” on retest TEOAE at RIMS, Ranchi, Jharkhand, India during the period of 18 months (June 2015 - November 2016). Follow- up done by visits and phone calls. Templates were generated in MS excel sheet and data analysis was done using SPSS software (version 20).Results: Study showed 3.90/1000 newborns were noted “refer” on retest TEOAE. Hearing loss (BERA- Fail) is slightly more common in males (2.20/1000 newborns), of rural areas (2.44/1000 newborns), tribal ethnicity (2.75/1000  newborns) and those delivered by lower section caesarean section (LSCS) (4.47/1000 newborns). Hearing loss noted in 2.07/1000 newborns. Among high risk newborns 21.41/1000 newborns were noted “refer” on retest TEOAE and 11.53 were found BERA fail.Conclusions: Hearing loss was 21.71 times more common in newborns associated with high risk factors, mainly low birth weight and preterm newborns.


2007 ◽  
Vol 135 (5-6) ◽  
pp. 264-268 ◽  
Author(s):  
Snezana Babac ◽  
Dragoslava Djeric ◽  
Zoran Ivankovic

Introduction: Prevalence of sensorineural hearing loss is 1-3 per 1,000 newborns. Transient evoked otoacoustic emission (TEOAE) and automated auditory brain stem responses (AABR) are most frequently used methods in newborn hearing screening programmes. Objective. The aim of this study was to examine hearing function in newborns with and without risk factors for hearing loss. We investigated accuracy and feasibility of two automated technologies: transient otoacoustic emissions (TEOAE) and auditory brain stem response (AABR) in early detection of hearing loss. Method. In prospective study, 907 newborns were tested on both ears with transient evoked otoacoustic emissions (TEOAE). If results were "refer", we performed automated brain stem response (AABR). Two stage screening protocols were used with two screening technologies (TEOAE, AABR). Results. Results showed screening pass of 86.3% of the newborns in the first protocol and 99.3% in the second. Six (0.7%) newborns had positive screening results for hearing loss. They were referred for additional audolologic tests (otoacoustic emissions, tympanometry, and auditory brain stem response) to confirm or exclude hearing loss. Audiologic examination was performed up to the third month of life. We confirmed unilateral sensorineural hearing loss in two babies. Average test time per ear was 21.3?19.4 s for TEOAE and 135.3?67.9 s for AABR. Conclusion TEOAE, AABR tests are confidential, noninvasive and feasible methods and can help to detect hearing impairment.


2020 ◽  
Vol 6 (3) ◽  
pp. 50
Author(s):  
Ahmad A. Alanazi

Congenital hearing loss has been commonly reported as a significant health problem. Lost to system (LTS) is a major challenge facing newborn hearing screening (NHS) programs. This retrospective cross-sectional descriptive study aimed to determine the referral and LTS rates after the two-stage NHS based on transient evoked otoacoustic emissions (TEOAEs) in two main hospitals in Riyadh, Saudi Arabia (SA). NHS was performed on newborns before hospital discharge. Newborns were only rescreened if NHS initially revealed a fail/refer outcome in one or both ears. Those who failed the first and second screenings or had risk factors were referred for auditory brainstem response (ABR) testing to confirm or exclude hearing loss. In total, 20,171 newborns (40,342 ears; 52% males; 48% females) were screened, of whom 19,498 (96.66%) passed the initial screening, while 673 (3.34%) failed. Of the 673 newborns, 235 (34.92%) were LTS, and 438 (65.08%) were rescreened, of whom 269 (61.42%) failed and were referred for a comprehensive audiological assessment to confirm the existence of hearing loss. The referral rate after the initial two-stage screening was equal to 1.33%. The lack of awareness of the importance of NHS among parents seems to be the major cause behind the LTS rate. The stakeholders have to work efficiently to reduce the LTS rate.


1995 ◽  
Vol 17 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Karl R. White ◽  
Thomas R. Behrens ◽  
Bonnie Strickland

Although the importance of identifying significant hearing loss at an early age has long been recognized, it is generally acknowledged that newborn hearing screening programs in the United States have not been very successful. The problem has been that available techniques were impractical, too expensive, or invalid. This article summarizes the data regarding the use of transient evoked otoacoustic emissions (TEOAE) in a universal newborn hearing screening program and describes various facets of program implementation. It is concluded that available data provide clear evidence that TEOAE can be used to significantly reduce the average age of identification for hearing loss in the U.S.


2021 ◽  
Vol 4 (1) ◽  
pp. 33-36
Author(s):  
Pankaj Ray ◽  
Siba Thakali ◽  
Session Prajapati

Introduction Congenital hearing loss is one of the commonest causes of hearing impairment and deafness in childhood. Early diagnosis and intervention in time help a child to lead a better life with good language and communication skills. Known risk factors include cytomegalovirus infection and premature birth necessitating a stay in the neonatal intensive care unit. Universal newborn hearing screening has been implemented by many countries due to easy and non-invasive screening test and their ability to identify children who may need early intervention. Methods: All the newborns delivered between December 2018 to November 2020 were screened for congenital hearing loss. The average age at screening was more than 24 hours. Those who were referred in OAE (otoacoustic emissions testing) underwent ABR (auditory brainstem response) test and further workup as needed. Conclusions: The incidence of congenital hearing loss was 1.8 per 1000 live births. This finding is consistent with other previous research. UNHS will be cost-effective easy and feasible method for early detection of hearing loss in newborns. Pediatric health services organizations should prioritize universal newborn hearing screening as a part of the standard of care in birthing services.  


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