Newborn hearing screening in a developing country: Results of a pilot study in Abidjan, Côte d’ivoire

Tanon-Anoh, M. J.; Sanogo-Gone, D.; Kouassi, K.B.

doi:10.1016/j.ijporl.2009.11.008

Cited by 24 publications

(20 citation statements)

References 16 publications

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“…Literature studies also found a significant relationship between hearing loss and the risk factors: neonatal asphyxia [23, 35], syndromes associated with hearing loss [23], and craniofacial anomalies [23]. Craniofacial anomalies had a significant relationship with conductive hearing loss [11], as in this study.…”

Section: Discussionsupporting

confidence: 79%

Newborn Hearing Screening and Early Diagnostic in the NICU

Colella-Santos

Hein

Souza

et al. 2014

BioMed Research International

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The aim was to describe the outcome of neonatal hearing screening (NHS) and audiological diagnosis in neonates in the NICU. The sample was divided into Group I: neonates who underwent NHS in one step and Group II: neonates who underwent a test and retest NHS. NHS procedure was automated auditory brainstem response. NHS was performed in 82.1% of surviving neonates. For GI, referral rate was 18.6% and false-positive was 62.2% (normal hearing in the diagnostic stage). In GII, with retest, referral rate dropped to 4.1% and false-positive to 12.5%. Sensorineural hearing loss was found in 13.2% of infants and conductive in 26.4% of cases. There was one case of auditory neuropathy spectrum (1.9%). Dropout rate in whole process was 21.7% for GI and 24.03% for GII. We concluded that it was not possible to perform universal NHS in the studied sample or, in many cases, to apply it within the first month of life. Retest reduced failure and false-positive rate and did not increase evasion, indicating that it is a recommendable step in NHS programs in the NICU. The incidence of hearing loss was 2.9%, considering sensorineural hearing loss (0.91%), conductive (1.83%) and auditory neuropathy spectrum (0.19%).

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Section: Discussionsupporting

confidence: 79%

Newborn Hearing Screening and Early Diagnostic in the NICU

Colella-Santos

Hein

Souza

et al. 2014

BioMed Research International

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“…While no defi nitive pattern could be observed between the referral rates and ambient noise levels across all sites, the high false-positive rates associated with TEOAE in this study would underscore the need for a second-stage screening with AABR to bring the overall referral rates within the recommended limit of 4% (JCIH, 2007). This is without prejudice to the possible reduction that could be achieved through a second-stage screening with the same technology on a return visit after several days, as has been reported with TEOAE in some studies from other developing countries (Tanon-Anoh et al, 2010;Griz et al, 2009;Tasci et al, 2009;Bansal et al, 2008). However, it was unlikely that the reduction achieved from the combined TEOAE/AABR in this population was possible with a TEOAE-only protocol given the age profi le in 540 International Journal of Audiology, Volume 49 Number 8 the community-based study and the risk of high follow-up default in particular.…”

Section: Discussionmentioning

confidence: 66%

Ambient noise levels and infant hearing screening programs in developing countries: An observational report

Olusanya

2010

International Journal of Audiology

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Considering that current newborn/infant hearing screening (NHS) instruments were designed primarily for use in developed countries, this study set out to ascertain the potential effects of higher ambient noise levels on transient-evoked otoacoustic emissions (TEOAE) in sub-Saharan Africa. Data was drawn from two hospital-based and community-based NHS programs in Lagos, Nigeria, with a total screened population of 11 893 infants. Two automated TEOAE screening devices-Echo-Screen and ECHOCHECK-were available for this study. Ambient noise levels ranged from 61.0-90.5 dBA in the hospital wards and 55.6-82.5 dBA in the community health centers. One TEOAE model could not be activated at the prevailing noise levels. No significant pattern was observed in average noise levels and overall TEOAE referrals across all screening sites. However, the false-positive rates ranged from 1.4-13.8%. This study suggests that valid TEOAE screening is attainable in the Negroid race in settings with ambient noise levels up to 68 dBA but the associated high false-positive rates may necessitate additional screening with auditory brainstem response to achieve acceptable overall referral rates for timely diagnostic evaluation.

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“…Superior results of false-positive had been observed by M atos et al (16.9%) 5 . In the Côte d'Ivoire, the false-positive tax was of 11,25% 11 . As much in Saudi Arabia how much in Sicily the false-positive indices had presented inferior 2.3% and 0.74% respectively 14 15 .…”

Section: Discussionmentioning

confidence: 96%

“…In the maternity in study, the children receive high hospital between 36 and 48 hours of life. Data demonstrate that, in countries as the Ivory Coast the mothers and just-been born healthful the birth in public hospital or two days in particular net remains only one day after, what it becomes impracticable the selection during the internment 11 . The same it does not occur in Greece, where the neonates after receive high 4 or 5 days after the birth 12 .…”

Section: Discussionmentioning

confidence: 99%

Prevalence of auditory changes in newborns in a teaching hospital

Guimarães¹,

Barbosa²

2012

Int Arch Otorhinolaryngol

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Summary Introduction: The precocious diagnosis and the intervention in the deafness are of basic importance in the infantile development. The loss auditory and more prevalent than other joined riots to the birth. Objective: Esteem the prevalence of auditory alterations in just-born in a hospital school. Method: Prospective transversal study that evaluated 226 just-been born, been born in a public hospital, between May of 2008 the May of 2009. Results: Of the 226 screened, 46 (20.4%) had presented absence of emissions, having been directed for the second emission. Of the 26 (56.5%) children who had appeared in the retest, 8 (30.8%) had remained with absence and had been directed to the Otolaryngologist. Five (55.5%) had appeared and had been examined by the doctor. Of these, 3 (75.0%) had presented normal otoscopy, being directed for evaluation of the Evoked Potential Auditory of Brainstem (PEATE). Of the total of studied children, 198 (87.6%) had had presence of emissions in one of the tests and, 2 (0.9%) with deafness diagnosis. Conclusion: The prevalence of auditory alterations in the studied population was of 0,9%. The study it offers given excellent epidemiologists and it presents the first report on the subject, supplying resulted preliminary future implantation and development of a program of neonatal auditory selection.

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Newborn hearing screening in a developing country: Results of a pilot study in Abidjan, Côte d’ivoire

Cited by 24 publications

References 16 publications

Newborn Hearing Screening and Early Diagnostic in the NICU

Newborn Hearing Screening and Early Diagnostic in the NICU

Ambient noise levels and infant hearing screening programs in developing countries: An observational report

Prevalence of auditory changes in newborns in a teaching hospital

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