Medial olivary complex reflex in term newborns with hyperbilirubinemia

Çulhaoğlu, Belde; Erbek, Selim S.; Ince, Denız Anuk; Ecevit, Ayşe; Erbek, Seyra

doi:10.1016/j.ijporl.2021.110777

Cited by 4 publications

(3 citation statements)

References 30 publications

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“…Efferents from the MOC originate from the medial part of the Superior Olivary Complex and terminate in the outer hair cells. The activation of MOC efferents causes a decrease in signals from outer hair cells (as obtained via OAE), which is called suppression [ [27] , [28] , [29] ]. MOC efferents have critical functions in hearing.…”

Section: Discussionmentioning

confidence: 99%

The short-term effect of COVID-19 on the cochleovestibular system in pediatric patients

Demir

Aydın

Cengiz

2023

International Journal of Pediatric Otorhinolaryngology

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Section: Discussionmentioning

confidence: 99%

The short-term effect of COVID-19 on the cochleovestibular system in pediatric patients

Demir

Aydın

Cengiz

2023

International Journal of Pediatric Otorhinolaryngology

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“…This phenomenon is defined as CLS of OAEs and it eases the determination of the MOC functions efferent system. [15][16][17] Medial olivocochlear efferent system has some critical tasks in hearing processes. It supports auditory perception in noisy environment via anti-masking and this complex mechanism maintains improved tone determination, intensity, and speech discrimination.…”

Section: Methodsmentioning

confidence: 99%

“…The absence of contralateral suppression )CS( is an abnormal result that indicates the deficiency of the efferent auditory mechanism. [15][16][17] Coronavirus disease-2019 morbidity and mortality have been lower in pediatric patients compared to the elderly. However, there are still not enough studies in pediatric patients.…”

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confidence: 99%

Does SARS-CoV-2 affect cochlear functions in children?

Koca

Çelik

Simsek

et al. 2022

SMJ

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Objectives: To determine the influence of coronavirus disease-19 )COVID-19( on cochlear tasks of children who had COVID-19 previously, and the relevance among disease seriousness and cochlear involvement by otoacoustic emissions )OAEs(. Methods:The study included 24 hospitalized children after COVID-19 diagnosis, 23 pediatrics that received outpatient treatment, and 21 children who were without COVID-19 diagnosis as the control group between June 2021 and July 2021. Transient evoked otoacoustic emission )TEOAE(, distortion product otoacoustic emission, and contrlateral suppression of otoacoustic emission measurements were carried out for each child. Symptoms of patients, the treatments they received, and the duration of hospitalization of the children in the hospitalized group were recorded. Results: The comparison of TEOAE test results under masking showed a considerable difference between Original Article3 groups at 1 kHz )p=0.033( and 4 kHz )p=0.021( frequencies )p<0.05(. Distortion product otoacoustic emission test results of hospitalized outpatient and control group showed a statistically significant difference at 2 kHz among themselves )p=0.009(. Conclusion:Our results suggest that severe acute respiratory syndrome coronavirus-2 may influence the medial olivocochlear system of children and have irreversible effects on the cochlear functions. Early detection of problems that may affect cochlear functions is a special critical task, especially in children, who are a particularly vulnerable group in terms of hearing and related speech problems.

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Medial olivocochlear reflex reliability: The effects of averaging and presence of synchronized spontaneous otoacoustic emissions

Jędrzejczak

Kochanek

Piłka

et al. 2022

The Journal of the Acoustical Society of America

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The medial olivocochlear reflex (MOCR), usually assessed by the inhibition of transiently evoked otoacoustic emissions (TEOAEs) with contralateral noise, is a very small effect. In understanding the origin of the MOCR, it is crucial to obtain data of the highest accuracy, i.e., with a high signal-to-noise ratio (SNR), which in turn largely depends on the number of signal averages. This study investigates how the reliability of MOCR measures is affected by the number of averages. At the same time, the effect of the presence of synchronized spontaneous otoacoustic emissions (SSOAEs) is taken into account, as it is known that this factor significantly affects TEOAE amplitudes and SNRs. Each recording session consisted of two series of four measurements, allowing comparison of MOCR magnitude based on 250, 500, 750, and 1000 averages. Reliability was based on comparing the two series. The results show that, for a good quality MOCR measure (i.e., intraclass correlation above 0.9), the required number of averages is at least double that obtainable from a standard TEOAE test (i.e., 500 compared to 250). Ears without SSOAEs needed a higher number of averages to reach a correlation of 0.9 than ears with SSOAEs.

show abstract

Medial olivary complex reflex in term newborns with hyperbilirubinemia

Cited by 4 publications

References 30 publications

The short-term effect of COVID-19 on the cochleovestibular system in pediatric patients

The short-term effect of COVID-19 on the cochleovestibular system in pediatric patients

Does SARS-CoV-2 affect cochlear functions in children?

Medial olivocochlear reflex reliability: The effects of averaging and presence of synchronized spontaneous otoacoustic emissions

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