Confirmation of deafness in infancy

Watkin, Peter; Baldwin, Margaret

doi:10.1136/adc.81.5.380

Cited by 78 publications

(53 citation statements)

References 14 publications

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“…25,26 Although the majority of infants in the United States are now screened, several recent studies report children with less severe degrees of loss, such as UHL and MBHL, are not being identified at the expected prevalence. 2,22,[27][28][29] As noted in Table 1 In comparison, research findings in the literature reported prevalence estimates in newborns for UHL that ranged from between 0.8/1000 to 2.7/1000. 27,29 Only 1 study had published data on the prevalence of MBHL in newborns, reporting a prevalence of 0.36 28 (Table 1).…”

Section: Newborn Hearing Screeningmentioning

confidence: 88%

Hearing Screening and Diagnostic Evaluation of Children With Unilateral and Mild Bilateral Hearing Loss

Ross

Holstrum

Gaffney

et al. 2008

Trends in Amplification

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More than 90% of newborns in the United States are now being screened for hearing loss. A large fraction of cases of unilateral hearing loss and mild bilateral hearing loss are not currently identified through newborn hearing screening. This is of concern because a preponderance of research has demonstrated that unilateral hearing loss and mild bilateral hearing loss can lead to developmental delays and educational problems for some children. To help address this probable underidentification of unilateral hearing loss and mild bilateral hearing loss among infants and children, the Centers for Disease Control and Prevention Early Hearing Detection and Intervention program and the Marion Downs Hearing Center convened a workshop in Breckenridge, Colorado, in July 2005. During this workshop, several issues related to screening and diagnosing unilateral hearing loss and mild bilateral hearing loss were identified, as well as recommendations for future research in this area. Issues identified included the lack of standardized definitions for permanent unilateral hearing loss and mild bilateral hearing loss; the use of screening protocols that are primarily designed to identify bilateral and unilateral hearing losses of a moderate degree or greater (eg, above 40 dB); calibration of screening equipment; availability of facilities that can provide the full range of audiologic, diagnostic, and management services to this pediatric population; and an overall lack of awareness by many professionals and families about the potential effect of unilateral hearing loss and mild bilateral hearing loss. Suggestions for future research, such as identifying ways to improve the identification of cases of unilateral hearing loss and mild bilateral hearing loss, were also discussed.

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Section: Newborn Hearing Screeningmentioning

confidence: 88%

Hearing Screening and Diagnostic Evaluation of Children With Unilateral and Mild Bilateral Hearing Loss

Ross

Holstrum

Gaffney

et al. 2008

Trends in Amplification

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“…Changes were based on epidemiological data and screening results from the 1970s to 2002, when local implementations became centrally directed. [26][27][28][31][32][33][34][35] Throughout the 25 years reactive referrals were received from primary health care, from paediatric and ENT services, and also directly from parents. The IDT was undertaken as a universal infant hearing screen at 8 months of age, until 1996.…”

Section: Changes In the Programmes Of Early Screening And Identificationmentioning

confidence: 99%

“…However, the Whipps Cross University Hospital universal newborn hearing screen (UNHS) has been implemented as an audited service since 1992 predating the country-wide implementation of newborn hearing screening by more than a decade. [26][27][28][29][30] The available information has also been used to evaluate the current worth of the local SES. The necessity for a local evidence base to be available to inform local policy has been emphasised, 5 but there are concerns about the applicability of studies with a small population base to inform wider policy.…”

mentioning

confidence: 99%

Current practice, accuracy, effectiveness and cost-effectiveness of the school entry hearing screen

Bamford¹,

Fortnum²,

Bristow³

et al. 2007

Health Technol Assess

124

153

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“…Hearing impairment is one of the most common disorders at birth, i.e., about 0.1% newborns suffer from such disorders (Kennedy and McCann, 2004;Mehl and Thomson, 2002;Morton and Nance, 2006;Norton et al, 2000;Watkin and Baldwin, 1999;Wessex Universal Neonatal Hearing Screening Trial Group, 1998). Although early diagnosis and treatment of such disorders in neonates is highly effective for realization of linguistic competence and intellectual development (Yoshinaga-Itano et al, 1998), diagnostic accuracy during the initial neonatal period of the birth is low.…”

Section: Introductionmentioning

confidence: 99%

Analysis by finite element method of dynamic characteristics of the external ear canal in neonates

Murakoshi

Takeda

Wada

2017

JBSE

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Although early diagnosis and treatment of hearing disorders in neonates is highly effective for realization of linguistic competence and intellectual development, the diagnostic accuracy in the initial period of life is low. To overcome this problem, extensive research studies to diagnose the neonatal hearing with tympanometry, multifrequency tympanometry, the wideband acoustic transfer function technique, the sweep frequency impedance (SFI) technique and others have been conducted. However, since the results obtained are not consistent with those obtained in adults/children, diagnosis of hearing in neonates has been problematic. The difference in the dynamic characteristics of the hearing apparatus between adults/children and neonates, especially due to the morphological difference in the external ear canal, has been suggested as a possible reason for such problem. However, the dynamics of the neonatal hearing system has not yet been clarified. In the present study, therefore, three types of finite-element models of the neonatal external ear were developed and their dynamic characteristics (i.e., natural frequencies and mode shapes) were investigated. Frequency analyses of the constructed models revealed that the neonatal external ear canal wall has a resonance of around 0.3 kHz and that this resonance leads to the volume change of such canal. This result suggests that the neonatal external ear canal wall may exhibit intrinsic oscillatory behavior if conventional tympanometry with a probe tone of 226 Hz is performed, affecting the diagnostic data in neonates.

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Confirmation of deafness in infancy

Cited by 78 publications

References 14 publications

Hearing Screening and Diagnostic Evaluation of Children With Unilateral and Mild Bilateral Hearing Loss

Hearing Screening and Diagnostic Evaluation of Children With Unilateral and Mild Bilateral Hearing Loss

Current practice, accuracy, effectiveness and cost-effectiveness of the school entry hearing screen

Analysis by finite element method of dynamic characteristics of the external ear canal in neonates

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