Call for calibration standard for newborn screening using auditory brainstem responses

Durrant, John D.; Sabo, Diane L.; Delgado, Rafael E.

doi:10.1080/14992020701481706

Cited by 6 publications

(5 citation statements)

References 22 publications

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“…Thus, the actual level of the test signal may vary appreciably among infants regardless of the audiometric hearing level in dB nHL referenced as the pass-fail criterion level by the manufacturer. 29,30 This is particularly concerning because the stimulus will frequently be higher, with the potential result of infants with UHL or MBHL being missed.…”

Section: Screening For Uhl and Mbhl During The Newborn Periodmentioning

confidence: 99%

Screening

White

Muñoz

2008

Semin Hear

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Most hearing screening programs have historically targeted children with moderate or more severe bilateral hearing loss. Children with unilateral or mild bilateral permanent hearing loss represent a substantial proportion of all children with hearing loss, and there are serious negative consequences for these children if they are not identified early and given appropriate help. Many children, particularly those with unilateral or mild bilateral hearing loss, acquire hearing loss after the newborn period. Although virtually all newborns are now screened for hearing loss before leaving the hospital, there are very few opportunities for periodic hearing screening after the newborn period. Effectively identifying those children who have late-onset loss or who are missed during newborn hearing screening will require modifying some of the procedures currently employed in hospital-based newborn hearing screening programs, as well as establishing better hearing screening procedures for early childhood and elementary school programs. Existing state Early Hearing Detection and Intervention systems are a resource for establishing and improving screening programs for infants and children with unilateral or mild bilateral hearing loss.KEYWORDS: Unilateral hearing loss, mild bilateral hearing loss, screening Learning Outcomes: As a result of this activity, the participant will be able to describe how hearing screening programs during the newborn, early childhood, and school-age periods can be improved to better identify children with unilateral and mild bilateral hearing loss.The first 36 months of a child's life are a critical period for language learning. Research has shown that undetected hearing loss leads to delays in speech, language, cognitive, and social-emotional development, negatively affecting academic performance and potential.

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Section: Screening For Uhl and Mbhl During The Newborn Periodmentioning

confidence: 99%

Screening

White

Muñoz

2008

Semin Hear

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“…In this study, all the parameters are found to be slightly higher in the right ear which may be due to failure of the transducer of the right earphone to produce the same output level as in the left ear which may be a manufacturing defect [23].…”

Section: Determination Of Hearing Thresholdmentioning

confidence: 94%

Prevalence of Hearing Loss in High Risk Infants of Mediocre Socio-economic Background at Around One Year of Age and Their Correlation with Risk Factors

Mukherjee

Sarkar

2012

Indian J Otolaryngol Head Neck Surg

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The present study tried to determine the hearing threshold by brainstem evoked response audiometry (BERA) in the high-risk infants from a mediocre socioeconomic background at around 1 year of age and correlate different risk factors with hearing loss. BERA was done on 127 infants of 6-18 months age of which 87 were high risk. All were given monaural acoustic stimulus using Cz-M1/ M2 Montage. Based on the appearance of wave V at minimum stimulus intensity, hearing threshold in decibels (dB) of each ear was determined. To study the association of the individual risk factor with hearing loss multiple logistic regression test was applied. Taking BERA threshold for 'Pass' as B40 dBnHL, out of 87 high risk infants 10.34 % (n = 9) had bilateral severe to profound hearing loss, 17.24 % (n = 15) had bilateral mild to moderate hearing loss and 12.64 % (n = 11) had impaired hearing in one ear. All of the control group infants had normal hearing threshold of 30 dBnHL. Twenty major risk factors were identified in the whole study group at an average of 2.3 factors per infant. Twelve factors were examined for correlation using Odd's ratio (OR) with[40 dBnHL threshold as the outcome variable. Factors with very high OR were family history of deafness, Ototoxic drugs and Craniofacial abnormality followed by others. High risk infants have a persistent and definitive risk of hearing loss prompting early intervention.

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“…These shortcomings of the automated ABR testing may be worsened if the intensity of the stimulus is not calibrated in the ear at the beginning of every test, leading to testing with higher stimulus intensities than intended. 18 An unexpected outcome of our screening procedure was the missed detection of infants with moderate or profound hearing loss by the automated ABR testing. In our study, 42% of the infants with hearing loss .45 dB HL passed the automated ABR test.…”

Section: Discussionmentioning

confidence: 99%