| Newborn hearing screening in a developing country: results of a pilot study in Abidjan, C?te d'ivoire. | |
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MedLine Citation:
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PMID: 19963282 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To investigate the feasibility of neonatal hearing impairment in newborn babies in Abidjan, C?te d'Ivoire. METHODS: It is a cross-sectional study in which all infants aged from 3 to 28 days, attending for Bacille Calmette-Guerin (BCG) immunization in primary care centers or hospitalized in neonatal intensive care units (NICU), between July 2007 and March 2008, were included. Screening followed a two-stage strategy with transient evoked otoacoustic emissions (TEOAE). Infants referred after the second-stage screening were scheduled for diagnostic evaluation by diagnostic auditory brainstem response (ABR). The variables analyzed were: screening coverage, referral rates; return rates for second-stage screening and diagnostic evaluation, incidence of permanent hearing loss and age at diagnosis. RESULTS: 1306 newborns, of a total of 1495, were successfully screened, giving a screening coverage of 87.4%. The average age was 4.5 days (S.D.: 2.7), with 5.85 days (S.D.: 3.17) for the immunization group and 3.20 days (S.D.: 0.40) for the neonatal unit group. In total, 286 out of the 1306 infants (21.9%) were referred after the first-stage screening; out of which 193 (67.5%) return for the second stage. After the second-stage screening, 48 (16.8%) were scheduled for diagnostic evaluation (45 from NICU and 3 from primary care centers). The overall referral rate for diagnostic evaluation was 3.7% (48/1306). Only 18.75% of those referred (9/48) returned for evaluation, and seven of them (77.8%) were confirmed with hearing loss (2 from immunization group and 5 from neonatal unit group). The prevalence of permanent hearing loss in this screened population was 5.96 per 1000 (7/1174 babies who completed the screening) [95% I.C.: 5.62-6.30 per 1000]. The mean age at diagnosis was 22 weeks (S.D.: 8.3). The reasons for non-completed screening were, according to 62 mothers: no financial means, absence of hearing loss, fear of spouse reactions, lack of information about this test and deafness. CONCLUSION: The incidence of permanent and early hearing impairment identified by this screening program was about 6 per 1000. Routine hearing screening of infants for the early detection of hearing loss is necessary in C?te d'Ivoire. It is possible to implement such a hearing screening, targeting all newborns, in primary health care centers and neonatal intensive care units. |
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Authors:
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M J Tanon-Anoh; D Sanogo-Gone; K B Kouassi |
Publication Detail:
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Type: Journal Article Date: 2009-12-05 |
Journal Detail:
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Title: International journal of pediatric otorhinolaryngology Volume: 74 ISSN: 1872-8464 ISO Abbreviation: Int. J. Pediatr. Otorhinolaryngol. Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-02-01 Completed Date: 2010-04-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8003603 Medline TA: Int J Pediatr Otorhinolaryngol Country: Ireland |
Other Details:
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Languages: eng Pagination: 188-91 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2009 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
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ENT - Cervical and Facial Surgery Unit, Yopougon's Teaching Hospital, 21 BP 622 Abidjan 21, C?te d'Ivoire. anohjose@aviso.ci |
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| MeSH Terms | |
Descriptor/Qualifier:
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Catchment Area (Health) Cote d'Ivoire / epidemiology Cross-Sectional Studies Developing Countries* Female Gestational Age Humans Infant, Newborn Male Neonatal Screening* Otoacoustic Emissions, Spontaneous / physiology Pilot Projects Prevalence |
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