Brainstem auditory evoked potentials in young children before and after tympanostomy tube placement

Owen, Mary; K, Norcross-Nechay; Howie, Virgil M.

doi:10.1016/0165-5876(93)90014-t

Cited by 14 publications

(8 citation statements)

References 23 publications

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“…Fria and Sabo (1980) measured latency components of the ABR at the time of myringotomy and tympanostomy tube insertion and showed that this technique was promising as a predictor of the presence or absence of otitis media with effusion. Similar measurements were carried out by Owen et al (1993). Both these studies employed the wave V latency input/output function to predict the threshold rather than using the actual response threshold.…”

Section: Discussionmentioning

confidence: 97%

Raised ABR threshold after suction aspiration of glue from the middle ear: three case studies

Mason¹,

Mason

Gibbin³

1995

J. Laryngol. Otol.

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Between 1991 and 1993, 13 children (25 hearing ears) underwent recordings of the auditory brain stem response (ABR) under a general anaesthetic. The anaesthetic technique was similar for each child. Fourteen of these ears had fluid aspirated after myringotomy with insertion of grommets prior to the auditory brain stem response investigation. On subsequent hearing assessment six of these 14 ears (43 per cent) showed clear evidence of a threshold shift of 15 dB or greater. Eleven ears had either dry myringotomies or did not have a myringotomy prior to ABR and none of these showed evidence of a temporary threshold shift. Using Fisher's Exact probability test this difference is significant (p = 0.034). We feel it is important to report these observations so that unexpected high ABR thresholds following aspiration of glue are interpreted with caution.

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Section: Discussionmentioning

confidence: 97%

Raised ABR threshold after suction aspiration of glue from the middle ear: three case studies

Mason¹,

Mason

Gibbin³

1995

J. Laryngol. Otol.

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“…To illustrate the effects of OMmediated conductive hearing loss on spatial hearing, we can make approximations of azimuthal shifts relative to midline by using the abnormal interaural time and level differences resultant from OM. Peak latencies for the click-evoked auditory brainstem response have been shown to be delayed by 0.44 ms on average and thresholds increased by approximately 20 dB in young children with middle ear effusion compared with audiometrically normal controls (Owen et al 1993). Though ostensibly small, introducing a 0.44 ms interaural time difference (ITD), in cases of unilateral or asymmetrical OM, translates to a 45°shift in azimuthal position relative to midline based on the expected skull radius of a 6-12 months old infant (7.16 cm based on average growth charts of head circumference, Center for Disease Control 2000) using the following formula:…”

Section: An Introduction To Otitis Media and Amblyaudiamentioning

confidence: 98%

Evaluating the Perceptual and Pathophysiological Consequences of Auditory Deprivation in Early Postnatal Life: A Comparison of Basic and Clinical Studies

Whitton

Polley

2011

JARO

116

130

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Decades of clinical and basic research in visual system development have shown that degraded or imbalanced visual inputs can induce a long-lasting visual impairment called amblyopia. In the auditory domain, it is well established that inducing a conductive hearing loss (CHL) in young laboratory animals is associated with a panoply of central auditory system irregularities, ranging from cellular morphology to behavior. Human auditory deprivation, in the form of otitis media (OM), is tremendously common in young children, yet the evidence linking a history of OM to long-lasting auditory processing impairments has been equivocal for decades. Here, we review the apparent discrepancies in the clinical and basic auditory literature and provide a meta-analysis to show that the evidence for human amblyaudia, the auditory analog of amblyopia, is considerably more compelling than is generally believed. We argue that a major cause for this discrepancy is the fact that most clinical studies attempt to link central auditory deficits to a history of middle ear pathology, when the primary risk factor for brain-based developmental impairments such as amblyopia and amblyaudia is whether the afferent sensory signal is degraded during critical periods of brain development. Accordingly, clinical studies that target the subset of children with a history of OM that is also accompanied by elevated hearing thresholds consistently identify perceptual and physiological deficits that can endure for years after peripheral hearing is audiometrically normal, in keeping with the animal studies on CHL. These studies suggest that infants with OM severe enough to cause degraded afferent signal transmission (e.g., CHL) are particularly at risk to develop lasting central auditory impairments. We propose some practical guidelines to identify at-risk infants and test for the positive expression of amblyaudia in older children.

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“…While the ABR testing is a powerful tool for the detection and quantification of hearing loss in the pediatric population, it remains controversial among professionals when it is used in the OR, especially after myringotomy and tube placement. Early studies reported improved hearing immediately after tube placement by ABR testing and justified the use of ABR testing in the OR [10,11]. Clinical studies in recent years have revealed significant discrepancies between ABR results obtained in the OR and those obtained in the follow-up period, raising a concern regarding the validity of ABR outcomes obtained in the OR [7][8][9].…”

Section: Discussionmentioning

confidence: 92%

Pediatric hearing assessment by auditory brainstem response in the operating room

Dornan

Fligor

Whittemore

et al. 2011

International Journal of Pediatric Otorhinolaryngology

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Brainstem auditory evoked potentials in young children before and after tympanostomy tube placement

Cited by 14 publications

References 23 publications

Raised ABR threshold after suction aspiration of glue from the middle ear: three case studies

Raised ABR threshold after suction aspiration of glue from the middle ear: three case studies

Evaluating the Perceptual and Pathophysiological Consequences of Auditory Deprivation in Early Postnatal Life: A Comparison of Basic and Clinical Studies

Pediatric hearing assessment by auditory brainstem response in the operating room

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