Twin study of neonatal transient-evoked otoacoustic emissions

Johansson, Marlin; Olofsson, Åke; Berninger, Erik

doi:10.1016/j.heares.2020.108108

Cited by 4 publications

(7 citation statements)

References 63 publications

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“…All TEOAE recordings in NEs showed a SNR > 4 dB in at least three of the upper four wide-frequency bands (n = 18, no reliable/no recording for S2 and S10 at test, though all NEs had passed TEOAE screening previously). The mean ± SD response level was 19.8 ± 7.2 dB SPL (n = 18) for NEs, similar to the 19-20 dB SPL in previous research of neonatal NEs with a similar test setup [43,44]. In Nes, the median stimulus level was 81.9 dB SPL peak (IQR: 81.6-83.1, n = 18), the stimulus stability was high (median = 98%, IQR: 92-99, n = 18), and a median of 233 sweeps were used (IQR: 160-260 sweeps; n = 18).…”

Section: Transient-evoked Otoacoustic Emission (Teoae)supporting

confidence: 85%

“…About 30–50% children with cCMV that develop SNHL or uSNHL specifically do this during the neonatal period [ 27 , 28 ]. The first TEOAE measurement is also routinely performed very early, around postnatal day 3, in the UNHS program in Region Stockholm (98% screened) [ 2 , 43 , 44 ], compared to the neonatal period up to 2 months of age in previous studies [ 27 , 28 ]. Moreover, the spread of infections generally changes over time.…”

Section: Discussionmentioning

confidence: 99%

“…The subjects were recruited during the years 2019–2020 from the bedside UNHS program in Region Stockholm, which is based on multiple transient-evoked OAE (TEOAE) recordings and an automatic ABR (aABR). The UNHS program has been described previously (first TEOAE around postnatal day 3, 98% screened) [ 2 , 42 , 43 , 44 ], where the aABR screening before clinical ABR was first introduced in 2016 [ 45 ].…”

Section: Methodsmentioning

confidence: 99%

“…The Echoport interface was placed in the audiometric test room during the measurement together with the subject and accompanying parent, whereas the tester and computer were outside in the surrounding quiet room. All the TEOAE stimulus and response levels were recorded at the probe-tip in the outer ear canal using an electrically constant stimulus, corresponding to a typical stimulus level of 81.5–82 dB SPL peak [ 43 , 44 ]. The NE was tested first in 65% of subjects, and the right ear first in 60% of subjects, which may be important, as TEOAEs have been demonstrated to be larger in the ear tested first [ 51 ].…”

Section: Methodsmentioning

confidence: 99%

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A Prospective Study of Etiology and Auditory Profiles in Infants with Congenital Unilateral Sensorineural Hearing Loss

Johansson

Karltorp

Edholm

et al. 2022

JCM

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Congenital unilateral sensorineural hearing loss (uSNHL) is associated with speech-language delays and academic difficulties. Yet, controversy exists in the choice of diagnosis and intervention methods. A cross-sectional prospective design was used to study hearing loss cause in twenty infants with congenital uSNHL consecutively recruited from a universal neonatal hearing-screening program. All normal-hearing ears showed ≤20 dB nHL auditory brainstem response (ABR) thresholds (ABRthrs). The impaired ear median ABRthr was 55 dB nHL, where 40% had no recordable ABRthr. None of the subjects tested positive for congenital cytomegalovirus (CMV) infection. Fourteen subjects agreed to participate in magnetic resonance imaging (MRI). Malformations were common for all degrees of uSNHL and found in 64% of all scans. Half of the MRIs demonstrated cochlear nerve aplasia or severe hypoplasia and 29% showed inner ear malformations. Impaired ear and normal-hearing ear ABR input/output functions on a group level for subjects with ABRthrs < 90 dB nHL were parallel shifted. A significant difference in interaural acoustic reflex thresholds (ARTs) existed. In congenital uSNHL, MRI is powerful in finding a possible hearing loss cause, while congenital CMV infection may be relatively uncommon. ABRs and ARTs indicated an absence of loudness recruitment, with implications for further research on hearing devices.

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Section: Transient-evoked Otoacoustic Emission (Teoae)supporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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A Prospective Study of Etiology and Auditory Profiles in Infants with Congenital Unilateral Sensorineural Hearing Loss

Johansson

Karltorp

Edholm

et al. 2022

JCM

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“…only four females), the median PTA was better in females than males. These results support earlier findings on the highly significant effects of ear and sex in normal neonatal TEOAE levels [ 15 , 76 ]. Significant lateral asymmetries and effects of sex also have been demonstrated for neonatal TEOAE pass ratios (right ear and females revealed higher pass ratios) along with a numerically higher proportion of SNHL in left ears and males [ 11 ], thus resembling pathophysiological differences, at birth.…”

Section: Discussionsupporting

confidence: 92%

Congenital Nonprofound Bilateral Sensorineural Hearing Loss in Children: Comprehensive Characterization of Auditory Function and Hearing Aid Benefit

et al. 2022

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A prospective cross-sectional design was used to characterize congenital bilateral sensorineural hearing loss (SNHL). The underlying material of >30,000 consecutively screened newborns comprised 11 subjects with nonprofound, alleged nonsyndromic, SNHL. Comprehensive audiological testing was performed at ≈11 years of age. Results showed symmetrical sigmoid-like median pure-tone thresholds (PTTs) reaching 50–60 dB HL. The congenital SNHL revealed recruitment, increased upward spread of masking, distortion product otoacoustic emission (DPOAE) dependent on PTT (≤60 dB HL), reduced auditory brainstem response (ABR) amplitude, and normal magnetic resonance imaging. Unaided recognition of speech in spatially separate competing speech (SCS) deteriorated with increasing uncomfortable loudness level (UCL), plausibly linked to reduced afferent signals. Most subjects demonstrated hearing aid (HA) benefit in a demanding laboratory listening situation. Questionnaires revealed HA benefit in real-world listening situations. This functional characterization should be important for the outline of clinical guidelines. The distinct relationship between DPOAE and PTT, up to the theoretical limit of cochlear amplification, and the low ABR amplitude remain to be elucidated. The significant relation between UCL and SCS has implications for HA-fitting. The fitting of HAs based on causes, mechanisms, and functional characterization of the SNHL may be an individualized intervention approach and deserves future research.

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EarNet: Biometric Embeddings for End to End Person Authentication System Using Transient Evoked Otoacoustic Emission Signals

Varugeese

Shahina²,

Nawas

et al. 2021

Neural Process Lett

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Twin study of neonatal transient-evoked otoacoustic emissions

Cited by 4 publications

References 63 publications

A Prospective Study of Etiology and Auditory Profiles in Infants with Congenital Unilateral Sensorineural Hearing Loss

A Prospective Study of Etiology and Auditory Profiles in Infants with Congenital Unilateral Sensorineural Hearing Loss

Congenital Nonprofound Bilateral Sensorineural Hearing Loss in Children: Comprehensive Characterization of Auditory Function and Hearing Aid Benefit

EarNet: Biometric Embeddings for End to End Person Authentication System Using Transient Evoked Otoacoustic Emission Signals

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