Newborn hearing screening at a community-based obstetric unit : screening and diagnostic outcomes

Show simple item record De Kock, Tersia Swanepoel, De Wet Hall, James Wilbur 2016-05-10T05:55:11Z 2016-05
dc.description.abstract OBJECTIVE : Postnatal visits at community-based midwife obstetric units (MOUs) have been proposed as an alternative primary healthcare screening platform in South Africa. This study evaluated the outcomes of distortion product otoacoustic emissions (DPOAEs) and automated auditory brainstem response (AABR) screening conducted by a dedicated non-professional screener at a community-based MOU in the Western Cape, South Africa. METHODS : Universal newborn hearing screening (UNHS) at a community-based MOU was evaluated over a 16-month period. A dedicated non-professional screener was trained to follow a two-stage screening protocol targeting bilateral hearing loss. A two group comparative design was used alternating AABR (Maico MB11 BERAphoneTM) and DPOAE (Bio-logic AuDX I) technology on a daily basis. Infants referring the initial screen received a follow-up appointment in two days’ time and were rescreened with the same technology used at their first screen. Those referring the second stage were booked for diagnostic assessments. RESULTS : 7452 infants were screened including 47.9% (n = 3573) with DPOAE and 52.1% (n = 3879) with AABR technology. Mean age at first stage screen was 6.1 days. The initial bilateral referral rate was significantly lower for AABR (4.6%) compared to DPOAE (7.0%) and dropped to 0.3% and 0.7% respectively following the second stage screenings. First rescreen and initial diagnostic follow-up rates of 90% and 92.3% were obtained for the DPOAE group and 86.6% and 90% for the AABR group. Follow-up rates showed no significant difference between technology groups. Diagnostic assessment revealed a higher prevalence rate for bilateral SNHL among the AABR group (1/1000) compared to the DPOAE group (0.3/ 1000). Screening technology had no significant influence on daily screening capacity (23 AABR/day; 24 DPOAE/day). CONCLUSIONS : Postnatal visits at community-based MOUs create a useful platform for hearing screening and follow-up. AABR technology with negligible disposable costs provides opportunity for AABR screening to be utilised in community-based programmes. AABR screening offers lower initial referral rates and a higher true positive rate compared to DPOAE. en_ZA
dc.description.department Speech-Language Pathology and Audiology en_ZA
dc.description.embargo 2017-05-31
dc.description.librarian hb2016 en_ZA
dc.description.uri en_ZA
dc.identifier.citation De Kock, T, Swanepoel, D & Hall, JW 2016, 'Newborn hearing screening at a community-based obstetric unit : screening and diagnostic outcomes', International Journal of Pediatric Otorhinolaryngology, vol. 84, pp. 124-131. en_ZA
dc.identifier.issn 0165-5876 (print)
dc.identifier.issn 1872-8464 (online)
dc.identifier.other 10.1016/j.ijporl.2016.02.031
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2016 Elsevier Ireland Ltd. All rights reserved. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in International Journal of Pediatric Otorhinolaryngology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Pediatric Otorhinolaryngology, vol. 84, pp. 124-131, 2016. doi : 10.1016/j.ijporl.2016.02.031. en_ZA
dc.subject Developing countries en_ZA
dc.subject Community-based newborn hearing screening en_ZA
dc.subject Distortion product otoacoustic emissions (DPOAEs) en_ZA
dc.subject Midwife obstetric units (MOUs) en_ZA
dc.subject Automated auditory brainstem response (AABR) en_ZA
dc.subject Universal newborn hearing screening (UNHS) en_ZA
dc.title Newborn hearing screening at a community-based obstetric unit : screening and diagnostic outcomes en_ZA
dc.type Postprint Article en_ZA

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