Analysis of auditory function using brainstem auditory evoked potentials and auditory steady state responses in infants with perinatal brain injury

Moreno-Aguirre, Alma Janeth; Santiago-Rodríguez, Efraín; Harmony, Thalı́a; Fernández-Bouzas, Antonio; Porras-Kattz, Eneida

doi:10.3109/14992020903311370

Cited by 13 publications

(20 citation statements)

References 35 publications

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“…Bilateral hearing loss in human neonatal intensive care units has been reported to range from 2 to 13.4% . However, when grouped under disease processes, hearing loss could range from 3 to 57% .…”

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confidence: 99%

Brainstem Auditory Evoked Responses in an Equine Patient Population. Part II: Foals

Aleman

Madigan

Williams

et al. 2014

Veterinary Internal Medicne

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BackgroundReports of the use of brainstem auditory evoked response (BAER) as a diagnostic modality in foals have been limited.Hypothesis/ObjectivesTo describe BAER findings and associated causes of hearing loss in foals.AnimalsStudy group 18 foals (15 neonatal, 3 nonneonatal), control group (5 neonatal foals).MethodsRetrospective. BAER records from the Clinical Neurophysiology Laboratory were reviewed from the years of 1982 to 2013. Peak latencies, amplitudes, and interpeak intervals were measured when visible. Clinical data were extracted from the medical records. Foals were grouped under disease categories. Descriptive statistics were performed.ResultsTen neonatal foals had complete absence of BAER bilaterally and 5 had findings within reference range. Abnormalities were associated with common neonatal disorders such as sepsis, neonatal encephalopathy, neonatal isoerythrolysis, and prematurity. BAER loss also was observed in foals with specific coat color patterns such as completely or mostly white with blue irides or lavender with pale yellow irides. An American Miniature foal with marked facial deformation also lacked BAER bilaterally. One nonneonatal foal with an intracranial abscess had no detectable BAER peaks bilaterally, and 2 older foals, 1 with presumed equine protozoal myeloencephalitis and the other with progressive scoliosis and ataxia, had BAER within normal limits.Conclusions and Clinical ImportanceIn neonatal foals, BAER deficits commonly are complete and bilateral, and associated with common neonatal disorders and certain coat and eye color patterns. Sepsis, hypoxia, bilirubin toxicity, and prematurity should be investigated as potential causes of auditory loss in neonatal foals.

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confidence: 99%

Brainstem Auditory Evoked Responses in an Equine Patient Population. Part II: Foals

Aleman

Madigan

Williams

et al. 2014

Veterinary Internal Medicne

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“…Hearing loss severity was evaluated based on calculated with the pure tone average (PTA) [14], [23], and was modified for pediatric age [24]. Hearing loss was classified as mild when the PTA threshold increased between 10 and 15 dB HL; moderate when PTA increased between >15 and 40 dB HL; severe when PTA increased between >40 and 60 dB HL, and profound when PTA increased >60 dB HL.…”

Section: Methodsmentioning

confidence: 99%

Effect of Hearing Aids on Auditory Function in Infants with Perinatal Brain Injury and Severe Hearing Loss

et al. 2012

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BackgroundApproximately 2–4% of newborns with perinatal risk factors present with hearing loss. Our aim was to analyze the effect of hearing aid use on auditory function evaluated based on otoacoustic emissions (OAEs), auditory brain responses (ABRs) and auditory steady state responses (ASSRs) in infants with perinatal brain injury and profound hearing loss.Methodology/Principal FindingsA prospective, longitudinal study of auditory function in infants with profound hearing loss. Right side hearing before and after hearing aid use was compared with left side hearing (not stimulated and used as control). All infants were subjected to OAE, ABR and ASSR evaluations before and after hearing aid use. The average ABR threshold decreased from 90.0 to 80.0 dB (p = 0.003) after six months of hearing aid use. In the left ear, which was used as a control, the ABR threshold decreased from 94.6 to 87.6 dB, which was not significant (p>0.05). In addition, the ASSR threshold in the 4000-Hz frequency decreased from 89 dB to 72 dB (p = 0.013) after six months of right ear hearing aid use; the other frequencies in the right ear and all frequencies in the left ear did not show significant differences in any of the measured parameters (p>0.05). OAEs were absent in the baseline test and showed no changes after hearing aid use in the right ear (p>0.05).Conclusions/SignificanceThis study provides evidence that early hearing aid use decreases the hearing threshold in ABR and ASSR assessments with no functional modifications in the auditory receptor, as evaluated by OAEs.

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“…Then, the modulating signal of 100 Hz, is recovered from EEG as if it were an AM receptor. This principle, which is broadly used in clinical testing for assessment of hearing impairment [31] was first used in this study to detect and transmit out information from the cognitive media.…”

Section: Auditory Bcismentioning

confidence: 99%

Brain-Computer Interface as Networking Entity in Body Area Networks

López-Gordo

Valle

2015

Lecture Notes in Computer Science

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Abstract.Modern BCIs are non-invasive, wireless, wearable and EEG-based systems capable to transduce brain signals into cognitive information and stream it out in form of data. BCIs have rarely been considered as part of the network. Thus, data communication approaches have not even tried. The consequence is a suboptimal communication in terms of performance, usability and reliability. In this paper we present BCI as a paradigm in Wireless Body Area Networks (WBANs) that interfaces multisensorial sources with the user brain. The BCI-WBAN concept treats cognitive processes as communication end-points in which sensorial information is consumed by cognitive processes. In the context of WBAN, BCIs implement the functionalities of the lower layers of communication open system: signal transduction into data, access control to the physical and cognitive media and data transmission. The BCI-WBAN paradigm extends the scope of WBAN from mere biosignal sensing by adding interpretation of neural correlates of cognitive information.

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Analysis of auditory function using brainstem auditory evoked potentials and auditory steady state responses in infants with perinatal brain injury

Cited by 13 publications

References 35 publications

Brainstem Auditory Evoked Responses in an Equine Patient Population. Part II: Foals

Brainstem Auditory Evoked Responses in an Equine Patient Population. Part II: Foals

Effect of Hearing Aids on Auditory Function in Infants with Perinatal Brain Injury and Severe Hearing Loss

Brain-Computer Interface as Networking Entity in Body Area Networks

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