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Gafoor SA, Uppunda AK. Role of the medial olivocochlear efferent auditory system in speech perception in noise: a systematic review and meta-analyses. Int J Audiol 2024; 63:561-569. [PMID: 37791429 DOI: 10.1080/14992027.2023.2260951] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 09/09/2023] [Accepted: 09/14/2023] [Indexed: 10/05/2023]
Abstract
OBJECTIVE The study investigated the relationship between the strength of the medial olivocochlear reflex (measured via contralateral inhibition of otoacoustic emissions) and speech perception in noise (obtained from behavioural identification task) through meta-analyses. DESIGN A systematic review and random-effects meta-analysis of studies investigating the relationship in neurotypical adults was performed. STUDY SAMPLE The systematic search (in PubMed, Scopus, Science Direct and Google Scholar databases) revealed 21 eligible studies, which were critically appraised using the NIH tool for Observational Cohort and Cross-Sectional Studies. Meta-analysis was performed on 17 studies (374 participants) with fair to good quality. RESULTS The results revealed that the medial olivocochlear reflex accounts for less than 1% of the variations in speech perception in noise in neurotypical individuals. Sub-group analyses conducted to address a few methodological differences also revealed no discernible association between the two variables. CONCLUSIONS The results reveal no modulatory effect of the medial olivocochlear reflex assessed using contralateral inhibition of otoacoustic emission on the ability to perceive speech in noise. However, more data utilising alternative measures of medial olivocochlear reflex strength is necessary before drawing any conclusions about the role of the medial olivocochlear bundle in speech perception in noise.
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Affiliation(s)
- Shezeen Abdul Gafoor
- Department of Audiology, All India Institute of Speech and Hearing, Mysuru, India
| | - Ajith Kumar Uppunda
- Department of Audiology, All India Institute of Speech and Hearing, Mysuru, India
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Lapsley Miller JA, Reed CM, Marshall L, Perez ZD, Villabona T. A Clinically Viable Medial Olivocochlear Reflex Assay Using Transient-Evoked Otoacoustic Emissions. Ear Hear 2024; 45:115-129. [PMID: 37475147 DOI: 10.1097/aud.0000000000001406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
OBJECTIVES The contralateral medial olivocochlear reflex (MOCR) strength may indicate various auditory conditions in humans, but a clinically viable assay and equipment are needed for quick, accurate, and reliable measurements. The first experiment compared an earlier version of the assay, which used a nonlinear-mode chirp stimulus, with a new assay using a linear-mode click stimulus, designed to give reliable MOCR measurements in most normal-hearing ears. The second experiment extended the improved assay on a purpose-built binaural hardware platform that used forward-pressure level (FPL) calibration for both the stimulus and the contralateral MOCR elicitor. DESIGN Transient-evoked otoacoustic emission (TEOAE) tests were measured with and without a 60-dB SPL MOCR-evoking contralateral broadband noise. The normalized MOCR strength (MOCR%) was derived from the TEOAE responses for each trial pair using the complex pressure difference weighted by the TEOAE magnitude. Experiment 1 compared MOCR% within-subject and across-day using two TEOAE stimuli: nonlinear-mode chirps (50 dB SPL, bandpass 1-5 kHz, 14 ms window delayed by 2 ms) and linear-mode clicks (50 dB SPL, bandpass 0.5-2.5 kHz, 13 ms window delayed by 5 ms). TEOAE responses were analyzed in the 0.5 to 2.5 kHz band. Thirty adult participants with normal hearing (30 ears) completed the study. The TEOAE stimulus was calibrated in situ using spectral flattening, and the contralateral noise was calibrated in a coupler. Twelve TEOAE trial pairs were collected for each participant and condition. Experiment 2 used a purpose-built binaural system. The TEOAE stimuli were linear-mode clicks (50 dB SPL, bandpass 1-3 kHz, 13 ms window delayed by 5 ms), analyzed in the 1 to 3 kHz band over ~12 trial pairs. After a probe refit, an additional trial pair was collected for the two early-stopping signal-to-noise ratio criteria (15 and 20 dB). They were evaluated for single-trial reliability and test time. Nineteen adult participants with normal hearing (38 ears) completed the study. The TEOAE clicks and contralateral elicitor noise were calibrated in situ using FPL and delivered with automated timing. RESULTS MOCR% for linear-mode clicks was distinguishable from measurement variability in 98% to 100% of participants' ears (both experiments), compared with only 73% for the nonlinear-mode chirp (experiment 1). MOCR detectability was assessed using the MOCR% across-subject/within-subject variance ratio. The ratio in experiment 1 for linear-mode clicks was higher (8.0) than for nonlinear-mode chirps (6.4). The ratio for linear-mode clicks (8.9) in experiment 2 was slightly higher than for the comparable linear-mode stimulus (8.0) in experiment 1. TEOAEs showed excellent reliability with high signal-to-noise ratios in both experiments, but reliability was higher for linear-mode clicks than nonlinear-mode chirps. MOCR reliability for the two stimuli was comparable. The FPL pressure response retest reliability derived from the SPL at the microphone was higher than the SPL retest reliability across 0.4 to 8 kHz. Stable results required 2 to 3 trial pairs for the linear-mode click (experiments 1 and 2) and three for the nonlinear-mode chirp (experiment 1), taking around 2 min on average. CONCLUSIONS The linear-mode click assay produced measurable, reliable, and stable TEOAE and MOCR results on both hardware platforms in around 2 min per ear. The stimulus design and response window ensured that any stimulus artifact in linear mode was unlikely to confound the results. The refined assay is ready to produce high-quality data quickly for clinical and field studies to develop population norms, recognize diagnostic patterns, and determine risk profiles.
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Affiliation(s)
- Judi A Lapsley Miller
- Mimosa Acoustics, Champaign, Illinois, USA
- Naval Submarine Medical Research Laboratory, Groton, Connecticut, USA
| | - Charlotte M Reed
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Lynne Marshall
- Naval Submarine Medical Research Laboratory, Groton, Connecticut, USA
| | - Zachary D Perez
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Timothy Villabona
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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Santos LJPDN, Câmara LLP, Balen SA. Inhibitory effect of contralateral noise on transient otoacoustic emissions in infants with congenital syphilis. Int J Pediatr Otorhinolaryngol 2023; 169:111540. [PMID: 37116274 DOI: 10.1016/j.ijporl.2023.111540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/12/2023] [Accepted: 03/26/2023] [Indexed: 04/30/2023]
Abstract
OBJECTIVES Analyze the inhibitory effect of contralateral noise on transient otoacoustic emissions in infants with congenital syphilis (CS). METHODS Cross-sectional study, approved by the Research Ethics Committee n° 3.360.991. Infants with treated CS at birth and infants without risk indicators for hearing impairment were selected. Both groups had the waves I, III and V presence at 80 dB nHL with click BAEP and the presence of response in the nonlinear TEOAEs at 80 dB NPS bilaterally. For suppression, TEOAE were analyzed without the contralateral noise, with the linear stimulus at 60 dB SPL. The neonates who presented a response in three frequencies per ear performed the second TEOAE collection with the contralateral white noise at an intensity of 60 dB SPL. Inferential analysis were performed using the Mann-Whitney and Wilcoxon test, adopting a significance level p < 0.05. RESULTS The sample consisted of 30 subjects divided into two groups, the Study Group (SG), consisting of 16 infants, and the Control Group (CG), consisting of 14 infants with no risk indicators for hearing loss. No differences were observed between the groups and the inhibition values, in the SG 30.8% presented inhibition and 25% for the CG in the right ear, in the left ear it was 46.7% in the SG and 38.5% in the CG. The SG demonstrated greater inhibition in the RE for the frequency bands from 1.5 to 4 KHz. CONCLUSIONS The analyses adopted in this study point out that the inhibitory effect of contralateral noise on TEOAEs in infants with CS does not differ from infants without risk indicators for hearing loss.
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Affiliation(s)
- Leila Juliane Pinheiro do Nascimento Santos
- Program in Speech-Language Pathology, UFRN/UFPB, Rua General Cordeiro de Faria, S/N, Petrópolis, 59012-570, Natal, RN, Brazil; Laboratory for Technological Innovation in Health (LAIS/UFRN), Av. Nilo Peçanha, 620, Petrópolis, 59012-300, Natal, RN, Brazil; Federal University of Rio Grande do Norte (UFRN) Campus Universitário, Lagoa Nova, 59078-900, Natal, RN, Brazil
| | - Lara Louise Pinto Câmara
- Program in Speech-Language Pathology, UFRN/UFPB, Rua General Cordeiro de Faria, S/N, Petrópolis, 59012-570, Natal, RN, Brazil; Laboratory for Technological Innovation in Health (LAIS/UFRN), Av. Nilo Peçanha, 620, Petrópolis, 59012-300, Natal, RN, Brazil; Federal University of Rio Grande do Norte (UFRN) Campus Universitário, Lagoa Nova, 59078-900, Natal, RN, Brazil
| | - Sheila Andreoli Balen
- Program in Speech-Language Pathology, UFRN/UFPB, Rua General Cordeiro de Faria, S/N, Petrópolis, 59012-570, Natal, RN, Brazil; Laboratory for Technological Innovation in Health (LAIS/UFRN), Av. Nilo Peçanha, 620, Petrópolis, 59012-300, Natal, RN, Brazil; Federal University of Rio Grande do Norte (UFRN) Campus Universitário, Lagoa Nova, 59078-900, Natal, RN, Brazil.
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Holtmann LC, Strahlenbach A, Hans S, Jung L, Lang S, Eichler T, Arweiler-Harbeck D. Assessing Medial Olivocochlear Reflex Strengths via Auditory Brainstem Response: Measurement and Variability in Normal-Hearing Individuals. Am J Audiol 2023; 32:220-231. [PMID: 36729649 DOI: 10.1044/2022_aja-22-00119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE Optimal measurement settings to measure the medial olivocochlear reflex (MOCR) in humans have not yet been defined. The purpose of this study was to advance the representation of the MOCR in auditory brainstem response (ABR) as an addition to the current diagnostic portfolio. PARTICIPANTS AND METHOD Twelve female and 14 male normal-hearing adults participated in the study. Potential effects of a contralateral acoustic stimulus (CAS) on amplitude changes were investigated by recording ABR waveform profiles on the left side at click intensities of 50/60/70 dB nHL with and without CAS (60 dB SPL). Secondly, to detect potential chronological order influences, measurement settings were rearranged on the right side and measurements were repeated. Additionally, ABR thresholds were recorded with and without a CAS in 10 patients. RESULTS When the effect of contralateral suppression was analyzed on the basis of amplitude changes, there was a change under administration of the CAS signal that was statistically significant. Interestingly, the order of recordings affected the degree of amplitude change. In three out of 10 patients, reproducible suppression effects on ABR thresholds were detectable upon CAS presentation. CONCLUSIONS To our knowledge, this is the largest study dealing with the recording of the MOCR elicited by a contralateral noise via ABR in normal-hearing individuals. Effects of MOCR are measurable via amplitude changes upon CAS administration. Chronological orders influence the impact of this effect on amplitude changes. Optimal measurement settings have not yet been defined. However, experiments such as this study may help to further improve measurements, and thus advance the representation of the MOC reflex in ABR as an addition to the current diagnostic portfolio.
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Affiliation(s)
- Laura Christine Holtmann
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine Essen, University of Duisburg-Essen, Germany
| | - Amadea Strahlenbach
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine Essen, University of Duisburg-Essen, Germany
| | - Stefan Hans
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine Essen, University of Duisburg-Essen, Germany
| | - Lea Jung
- Cochlear Implant Centrum Ruhr, Bagus Service and ReHabilitation, Essen, Germany
| | - Stephan Lang
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine Essen, University of Duisburg-Essen, Germany
| | - Theda Eichler
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine Essen, University of Duisburg-Essen, Germany
| | - Diana Arweiler-Harbeck
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medicine Essen, University of Duisburg-Essen, Germany
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Culhaoglu B, Erbek SS, İnce DA, Ecevit AN, Erbek S. Medial olivary complex reflex in term newborns with hyperbilirubinemia. Int J Pediatr Otorhinolaryngol 2021; 147:110777. [PMID: 34116320 DOI: 10.1016/j.ijporl.2021.110777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/21/2021] [Accepted: 05/17/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE This study aimed to compare the integrity of the efferent auditory pathways of newborns that had high hyperbilirubinemia levels and required treatment due to these and healthy newborns. METHODS Term-born (37 weeks or later) infants that were brought to the Newborn Polyclinic of the Başkent University Hospital were included in the study. The study included a total of 84 infants including healthy newborns (n = 42) and those that had jaundice and were receiving phototherapy (n = 42). After conducting a general otorhinolaryngology examination on all newborns included in the study, Transient Otoacoustic Emission (TEOAE) test was carried out in the absence and presence of contralateral noise. The obtained contralateral suppression values were compared between the two groups. RESULTS In the TEOAE test, the responses obtained at 1 kHz in the newborns receiving phototherapy were found to be lower. The difference between the groups was significant (p = 0.038). The rates of suppression presence at 2 kHz, 2.8 kHz and total OAE were found significantly higher (p < 0.05) in the group not receiving phototherapy. Among the phototherapy-receiving infants, the hyperbilirubinemia levels of the infants in whom suppression was obtained in the contralateral suppression test did not show a statistically significant difference in comparison to those in whom suppression was not obtained (p > 0.05). CONCLUSION Based on the obtained data, hyperbilirubinemia may have a disruptive effect on the efferent auditory system in newborns. Consequently, we are of the opinion that, in addition to hearing screening in risky newborn infants, a MOC suppression test would be useful.
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Affiliation(s)
- Belde Culhaoglu
- Dept. of Otolaryngology, Faculty of Medicine, Baskent University, Ankara, Turkey.
| | - Selim S Erbek
- Dept. of Otolaryngology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Deniz Anuk İnce
- Dept. of Pediatric Neonatology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Ayşe Nur Ecevit
- Dept. of Pediatric Neonatology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Seyra Erbek
- Dept. of Otolaryngology, Faculty of Medicine, Baskent University, Ankara, Turkey
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Jedrzejczak WW, Pilka E, Skarzynski PH, Skarzynski H. Reliability of contralateral suppression of otoacoustic emissions in children. Int J Audiol 2020; 60:438-445. [PMID: 33084414 DOI: 10.1080/14992027.2020.1834630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The purpose of the study was to determine the reliability in children of the medial olivocochlear reflex when measured as decibels of suppression of transiently evoked otoacoustic emissions (TEOAEs) by contralateral acoustic stimulation (CAS). DESIGN TEOAEs with and without CAS (white noise) were measured. In each subject, measurements were performed twice. Of particular interest was the suppression of TEOAEs by CAS and its reliability. Reliability was evaluated by calculating the standard error of measurement (SEM) and minimum detectable change (MDC). STUDY SAMPLE Fifty-one normally hearing girls aged 3-6 years. RESULTS The average global TEOAE suppression was around 0.6 dB. The highest reliability was for global values, with SEM of 0.2 dB and MDC of ±0.55 dB for the standard 2.5-20 ms recording window and slightly higher values for an 8-18 ms window. The worst reliability in the studied group was for the 1 kHz half-octave frequency band. Additionally, ears without spontaneous otoacoustic emissions had higher suppression levels than those with, but they also had lower signal-to-noise ratios, which may limit their clinical utility. CONCLUSIONS The current study shows that, under the studied paradigm, TEOAE suppression does not have satisfactory reliability since MDC was similar to the level of suppression.
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Affiliation(s)
- W Wiktor Jedrzejczak
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland.,World Hearing Center, Kajetany, Poland
| | - Edyta Pilka
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland.,World Hearing Center, Kajetany, Poland
| | - Piotr Henryk Skarzynski
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland.,World Hearing Center, Kajetany, Poland.,Heart Failure and Cardiac Rehabilitation Department, Medical University of Warsaw, Warsaw, Poland.,Institute of Sensory Organs, Kajetany, Poland
| | - Henryk Skarzynski
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland.,World Hearing Center, Kajetany, Poland
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Jedrzejczak WW, Pilka E, Skarzynski PH, Skarzynski H. Contralateral suppression of otoacoustic emissions in pre-school children. Int J Pediatr Otorhinolaryngol 2020; 132:109915. [PMID: 32028191 DOI: 10.1016/j.ijporl.2020.109915] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/28/2020] [Accepted: 01/28/2020] [Indexed: 10/25/2022]
Abstract
BACKGROUND Contralateral suppression of otoacoustic emissions (OAEs) may serve as an index of the medial olivocochlear (MOC) reflex. To date, this index has been studied in various populations but never in pre-school children. The purpose of this study was to fill this gap and describe how the MOC reflex affects the properties of transiently evoked OAEs (TEOAEs) in this age group. In addition, the influence of the presence of spontaneous OAEs (SOAEs) in the studied ear on the suppression of TEOAEs was also investigated. METHODS TEOAEs with and without contralateral acoustic stimulation (CAS) by white noise were measured in 126 normally hearing pre-school children aged 3-6 years. The values of response levels, suppression by CAS, and signal-to-noise ratios (SNRs) of TEOAEs were investigated for the whole signal (global) and for half-octave frequency bands from 1 to 4 kHz. Only ears with SNR >6 dB were used in the analyses. SOAEs were acquired using the so-called synchronized SOAEs (SSOAEs) technique. RESULTS Ears with SSOAEs had higher response levels and SNRs than ears without SSOAEs, and suppression was lower (0.58 dB compared to 0.85 dB). Only 22% of all studied ears had an SNR >20 dB, a level recommended in some studies for measuring suppression. There were no significant effects of age or gender on TEOAE suppression. CONCLUSIONS Suppression levels for pre-school children did not differ appreciably from those of adults measured under similar conditions in other studies. Taken together with no effect of age in the data studied here, it seems that there is no effect of age on TEOAE suppression. However, we did find that the presence of SSOAEs had an effect on TEOAE suppression, a finding which has not been reported in earlier studies on different populations. We suggest that the presence of SSOAEs might be a crucial factor related to MOC function.
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Affiliation(s)
- W Wiktor Jedrzejczak
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland; World Hearing Center, Kajetany, Poland.
| | - Edyta Pilka
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland; World Hearing Center, Kajetany, Poland
| | - Piotr Henryk Skarzynski
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland; World Hearing Center, Kajetany, Poland; Heart Failure and Cardiac Rehabilitation Department, Medical University of Warsaw, Warsaw, Poland; Institute of Sensory Organs, Warsaw, Kajetany, Poland
| | - Henryk Skarzynski
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland; World Hearing Center, Kajetany, Poland
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Boothalingam S, Allan C, Allen P, Purcell DW. The Medial Olivocochlear Reflex Is Unlikely to Play a Role in Listening Difficulties in Children. Trends Hear 2020; 23:2331216519870942. [PMID: 31558110 PMCID: PMC6767729 DOI: 10.1177/2331216519870942] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The medial olivocochlear reflex (MOCR) has been implicated in several auditory processes. The putative role of the MOCR in improving speech perception in noise is particularly relevant for children who complain of listening difficulties (LiD). The hypothesis that the MOCR may be impaired in individuals with LiD or auditory processing disorder has led to several investigations but without consensus. In two related studies, we compared the MOCR functioning of children with LiD and typically developing (TD) children in the same age range (7-17 years). In Study 1, we investigated ipsilateral, contralateral, and bilateral MOCR using forward-masked click-evoked otoacoustic emissions (CEOAEs; n = 17 TD, 17 LiD). In Study 2, we employed three OAE types: CEOAEs (n = 16 TD, 21 LiD), stimulus frequency OAEs (n = 21 TD, 30 LiD), and distortion product OAEs (n = 17 TD, 22 LiD) in a contralateral noise paradigm. Results from both studies suggest that the MOCR functioning is not significantly different between the two groups. Some likely reasons for differences in findings among published studies could stem from the lack of strict data quality measures (e.g., high signal-to-noise ratio, control for the middle ear muscle reflex) that were enforced in the present study. The inherent variability of the MOCR, the subpar reliability of current MOCR methods, and the heterogeneity in auditory processing deficits that underlie auditory processing disorder make detecting clinically relevant differences in MOCR function impractical using current methods.
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Affiliation(s)
- Sriram Boothalingam
- Department of Communication Sciences and Disorders, University of Wisconsin, Madison, WI, USA.,Waisman Center, University of Wisconsin, Madison, WI, USA
| | - Chris Allan
- School of Communication Sciences and Disorders, Western University, London, ON, Canada.,National Centre for Audiology, Western University, London, ON, Canada
| | - Prudence Allen
- School of Communication Sciences and Disorders, Western University, London, ON, Canada.,National Centre for Audiology, Western University, London, ON, Canada
| | - David W Purcell
- School of Communication Sciences and Disorders, Western University, London, ON, Canada.,National Centre for Audiology, Western University, London, ON, Canada
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Braite N, da Cruz Fernandes L, Rissatto Lago MR, de Aragão Dantas Alves C. Effects of type 1 diabetes mellitus on efferent auditory system in children and adolescents. Int J Pediatr Otorhinolaryngol 2019; 127:109660. [PMID: 31487561 DOI: 10.1016/j.ijporl.2019.109660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 10/26/2022]
Abstract
AIM To investigate whether type 1 diabetes mellitus (T1DM) could affect the efferent auditory system by analyzing the relationship between the activation of the medial olivocochlear reflex with disease duration, metabolic control and age at time of diagnosis. METHOD A total of 101 children and adolescents were evaluated. They were divided into two groups: 50 with T1DM and 51 without the disease. The participants answered a structured questionnaire containing questions about auditory complaints and were evaluated for tonal audiometry, tympanometry, acoustic reflex, otoacoustic emission by distortion product to evaluate the inhibitory effect of medial olivocochlear reflex (MOC). RESULTS The participants with T1DM presented changed AR (increased or absent) at all the frequencies in both ears (p < 0.05) when compared with the group without the disease. No differences were found between the DPOAE amplitudes of the individuals with and without T1DM, in both ears at all the frequencies. There were significant differences in the activation of the MOC reflex between the groups with and without T1DM, the participants with T1DM presented the absence of the inhibitory effect of the DPOAE in the right and left ears, in the frequencies of 4000 Hz (p = 0.035/0.002respectively) and 6000 Hz (p = 0.033/0.031 respectively) and 8000 Hz (p = 0.007/0.001 respectively) when compared to the healthy group. Significant differences were also observed between the groups with and without T1DM (p < 0.05) for self-reported complaints of tinitus, difficulties with the perception of speech when there was noise and distraction with noise. No association was found between the hearing complaints and the audiological measurements obtained and disease time, metabolic control and age at the time of diagnosis. CONCLUSION The findings suggest the presence of early auditory dysfunction of the efferent pathway in patients with T1DM.
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Affiliation(s)
- Nadja Braite
- Department of Life Science, State University of Bahia, Salvador, Bahia, Brazil.
| | - Luciene da Cruz Fernandes
- Department of Speech Therapy, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | - Crésio de Aragão Dantas Alves
- Pediatric Endocrinology Unit. University Hospital Prof. Edgard Santos, Faculty of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil
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Aksoy ED, Culhaoğlu B, Öcal FCA, Erbek SS, Erbek HS. Does the Efferent Auditory System Have a Role in Children with Specific Learning Disabilities? Turk Arch Otorhinolaryngol 2019; 57:30-33. [PMID: 31049250 DOI: 10.5152/tao.2019.3748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 12/23/2018] [Indexed: 01/18/2023] Open
Abstract
Objective This study aimed to compare the baseline transient otoacoustic emission (t-OAE) amplitudes and medial olivo-cochlear (MOC) efferent activity in children with specific learning disability (SLD) and children with normal development. Methods The study was conducted in two groups. The patient group included 30 children aged 6 to 10 years and diagnosed with SLD, and the control group included 30 children in the same age range without SLD. The patient group included eight males and 22 females, and the control group included 14 females and 16 males. t-OAE and contralateral suppression test were performed in both groups. Results In the first t-OAE measurements, a statistically significant difference was observed between the patient and the control group at frequencies of 1400, 2000, 2800, and 4000 Hz, but no such difference was observed at 1000 Hz frequency. In the control group, significantly better emission amplitudes were observed. No differences were found at any frequency between the patient and the control groups after suppression. When the subjects in the two groups were compared among themselves, there was a statistically significant difference between the before and after suppression scores in the patient group except at 4000 Hz. Likewise, an important difference was also observed in all frequencies in the control group. Conclusion This study shows that suppression effects of t-OAE on children diagnosed with SLD and children with no SDL are not significantly different.
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Affiliation(s)
- Emine Demirel Aksoy
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
| | - Belde Culhaoğlu
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
| | - F Ceyda Akın Öcal
- Department of Otorhinolaryngology, Gülhane Training and Research Hospital, Ankara, Turkey
| | - Selim Sermed Erbek
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
| | - Hatice Seyra Erbek
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
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Akbari M, Panahi R, Valadbeigi A, Hamadi Nahrani M. Speech-in-noise perception ability can be related to auditory efferent pathway function: a comparative study in reading impaired and normal reading children. Braz J Otorhinolaryngol 2019; 86:209-216. [PMID: 30772249 PMCID: PMC9422508 DOI: 10.1016/j.bjorl.2018.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/11/2018] [Indexed: 11/19/2022] Open
Abstract
Introduction Deficient auditory processing can cause problems with speech perception and affect the development and evolution of reading skills. The efferent auditory pathway has an important role in normal auditory system functions like speech-in-noise perception, but there is still no general agreement on this. Objective To study the performance of the efferent auditory system in a group of children with reading impairment in comparison with normal reading and evaluation of its relationship with speech-in-noise perception. Methods A total of 53 children between the ages of 8–12 years were selected for the study of which 27 were with reading impairment and 26 were normal reading children. Transient evoked otoacoustic emissions suppression and auditory recognition of words-in-noise test were performed for all the children. Results The average amplitude of transient evoked otoacoustic emissions suppression showed a significant difference between the two groups in the right (p = 0.004) and in the left ear (p = 0.028). Assessment of the relationship between transient evoked otoacoustic emissions suppression and monaural auditory recognition of words-in-noise scores showed a significant moderate negative relationship only in the right ear (p = 0.034, r = −0.41) of the normal reading children. Binaural auditory recognition of words-in-noise scores were significantly correlated with the amplitude of transient evoked otoacoustic emissions suppression in the right ear (p < 0.001, r = −0.75) and in the left ear (p < 0.001, r = −0.64) of normal reading children. In the reading impaired group, ?a weaker correlation was observed between binaural auditory recognition of words-in-noise scores and transient evoked otoacoustic emissions suppression in the right (p = 0.003, r = −0.55) and in the left ear (p = 0.012, r = −0.47). Conclusions Transient evoked otoacoustic emissions suppression pattern in the reading impaired group was different compared with normal reading children, and this difference could be related to efferent system performance. Words-in-noise scores in children with impaired reading were lower than in normal reading children. In addition, a relationship was found between transient evoked otoacoustic emissions suppression and words-in-noise scores in both normal and impaired reading children.
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Affiliation(s)
- Mehdi Akbari
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran
| | - Rasool Panahi
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran.
| | - Ayub Valadbeigi
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran
| | - Morteza Hamadi Nahrani
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran
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Rissatto-Lago MR, da Cruz Fernandes L, Lyra IM, Terse-Ramos R, Teixeira R, Salles C, Teixeira Ladeia AM. Hidden hearing loss in children and adolescents with sickle cell anemia. Int J Pediatr Otorhinolaryngol 2019; 116:186-191. [PMID: 30554696 DOI: 10.1016/j.ijporl.2018.10.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/25/2018] [Accepted: 10/28/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To evaluate the auditory system for hidden hearing loss (HHL) and its association with clinical variables and endothelial dysfunction (ED) in children and adolescents with sickle cell anemia (SCA). METHODS Participants included 37 patients with stable SCA and 44 healthy controls (HC group) (aged 6-18 years) with hearing thresholds ≤ 20 dB (dB) were evaluated for pure tone audiometry, tympanometry, acoustic reflex, otoacoustic emission, and auditory evoked potentials. Laboratory analysis of the lipid profile, and C-reactive protein levels and endothelial function using ultrasonographic imaging of the brachial artery to assess flow-mediated dilation were performed. RESULTS The SCA group presented with a higher rate of increased contralateral acoustic reflex thresholds, compared to those in the HC group at all frequencies and in both ears (p < 0.05). There were significant differences in the brainstem auditory evoked potentials between the SCA and HC groups. In the SCA group, the waves III and V latencies were increased (p = 0.006 and 0.004 respectively), and the I-III and I-V interpeak intervals were longer (p = 0.015 and 0.018 respectively) than those in the HC group. There was no association between the audiological measures and clinical and metabolic variables and sickle cell anemia complications including endothelial function and therapy. CONCLUSION In conclusion, our findings suggest that damage in the auditory system in SCA patients can be present involving retrocochlear structures, causing functional deficits without deterioration of auditory sensitivity.
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Affiliation(s)
- Mara Renata Rissatto-Lago
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil; Department of Life Science, State University of Bahia, Salvador, Bahia, Brazil.
| | - Luciene da Cruz Fernandes
- Department of Speech Therapy, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Isa Menezes Lyra
- University Hospital Professor Edgar Santos of Federal University of Bahia, Salvador, Bahia, Brazil
| | - Regina Terse-Ramos
- Department of Pediatrics, School of Medicine of Bahia, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Rozana Teixeira
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil; Department of Pediatrics, School of Medicine of Bahia, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Cristina Salles
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil; University Hospital Professor Edgar Santos of Federal University of Bahia, Salvador, Bahia, Brazil
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Lopez-Poveda EA. Olivocochlear Efferents in Animals and Humans: From Anatomy to Clinical Relevance. Front Neurol 2018; 9:197. [PMID: 29632514 PMCID: PMC5879449 DOI: 10.3389/fneur.2018.00197] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/13/2018] [Indexed: 11/13/2022] Open
Abstract
Olivocochlear efferents allow the central auditory system to adjust the functioning of the inner ear during active and passive listening. While many aspects of efferent anatomy, physiology and function are well established, others remain controversial. This article reviews the current knowledge on olivocochlear efferents, with emphasis on human medial efferents. The review covers (1) the anatomy and physiology of olivocochlear efferents in animals; (2) the methods used for investigating this auditory feedback system in humans, their limitations and best practices; (3) the characteristics of medial-olivocochlear efferents in humans, with a critical analysis of some discrepancies across human studies and between animal and human studies; (4) the possible roles of olivocochlear efferents in hearing, discussing the evidence in favor and against their role in facilitating the detection of signals in noise and in protecting the auditory system from excessive acoustic stimulation; and (5) the emerging association between abnormal olivocochlear efferent function and several health conditions. Finally, we summarize some open issues and introduce promising approaches for investigating the roles of efferents in human hearing using cochlear implants.
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Affiliation(s)
- Enrique A Lopez-Poveda
- Instituto de Neurociencias de Castilla y León, Universidad de Salamanca, Salamanca, Spain.,Departamento de Cirugía, Facultad de Medicina, Universidad de Salamanca, Salamanca, Spain.,Instituto de Investigación Biomédica de Salamanca, Universidad de Salamanca, Salamanca, Spain
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