scholarly journals Correlation between Speech Perception Outcomes after Cochlear Implantation and Postoperative Acoustic and Electric Hearing Thresholds

2021 ◽  
Vol 10 (2) ◽  
pp. 324
Author(s):  
Ursina Rüegg ◽  
Adrian Dalbert ◽  
Dorothe Veraguth ◽  
Christof Röösli ◽  
Alexander Huber ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Speech Perception ◽  
Correlation Analysis ◽  
Cochlear Implantation ◽  
Pure Tone ◽  
Small Population ◽  
Reliable Prediction ◽  
Electric Hearing ◽  
Hearing Thresholds ◽  
Monosyllabic Words

The reliable prediction of cochlear implant (CI) speech perception outcomes is highly relevant and can facilitate the monitoring of postoperative hearing performance. To date, multiple audiometric, demographic, and surgical variables have shown some degree of correlation with CI speech perception outcomes. In the present study, postsurgical acoustic and electric hearing thresholds that are routinely assessed in clinical practice were compared to CI speech perception outcomes in order to reveal possible markers of postoperative cochlear health. A total of 237 CI recipients were included in this retrospective monocentric study. An analysis of the correlation of postoperative pure-tone averages (PTAs) and electric CI fitting thresholds (T-/C-levels) with speech perception scores for monosyllabic words in quiet was performed. Additionally, a correlation analysis was performed for postoperative acoustic thresholds in intracochlear electrocochleography (EcochG) and speech recognition scores in a smaller group (n = 14). The results show that neither postoperative acoustic hearing thresholds nor electric thresholds correlate with postoperative speech perception outcomes, and they do not serve as independent predictors of speech perception outcomes. By contrast, the postoperative intracochlear total EcochG response was significantly correlated with speech perception. Since the EcochG recordings were only performed in a small population, a large study is required to clarify the usefulness of this promising predictive parameter.

Delayed loss of residual hearing in Clarion® cochlear implant users

2003 ◽  
Vol 117 (11) ◽  
pp. 850-853 ◽  
Author(s):  
M. Barbara ◽  
A. Mattioni ◽  
S. Monini ◽  
I. Chiappini ◽  
F. Ronchetti ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implantation ◽  
Pure Tone ◽  
Hearing Threshold ◽  
Auditory Threshold ◽  
Residual Hearing ◽  
Equal Distribution ◽  
Hearing Thresholds ◽  
Number Of Patients ◽  
Over Time

Hearing threshold has been measured in a group of patients following cochlear implantation with a Clarion® device for the last eight years. The patients had received either a pre-curved carrier or the Hi-Focus I plus Electrode Positioner System (EPS). The assessment was carried out within the first post-operative week as well as at a later stage, between six and 87 months, post-operatively. Residual hearing thresholds were still measurable early after surgery in 24.5 per cent of the patients, without differences between the two different Clarion® models. However, the number of subjects with measurable hearing dropped to 16.3 per cent as observed when hearing was measured at a later stage, with an equal distribution between the two groups of patients. From this study it has been possible to observe that only a limited number of patients maintain residual hearing after Clarion® cochlear implantation, and that this tends to decrease further over time. Nevertheless, the performance of these patients for speech tests did not appear to be affected by deterioration of the pure-tone auditory threshold.

Acute Alcohol Intake Deteriorates Hearing Thresholds and Speech Perception in Noise

2020 ◽  
pp. 1-8
Author(s):  
Hyo Geun Choi ◽  
Sung Kwang Hong ◽  
Hyo-Jeong Lee ◽  
Jiwon Chang
Keyword(s):  
Speech Perception ◽  
Otoacoustic Emissions ◽  
Pure Tone ◽  
Alcohol Intake ◽  
Human Subjects ◽  
Pure Tone Audiometry ◽  
Distortion Product Otoacoustic Emission ◽  
Speech Perception In Noise ◽  
Distortion Product ◽  
Hearing Thresholds

<b><i>Objectives:</i></b> The hearing process involves complex peripheral and central auditory pathways and could be influenced by various situations or medications. To date, there is very little known about the effects of alcohol on the auditory performances. The purpose of the present study was to evaluate how acute alcohol administration affects various aspects of hearing performance in human subjects, from the auditory perceptive threshold to the speech-in-noise task, which is cognitively demanding. <b><i>Methods:</i></b> A total of 43 healthy volunteers were recruited, and each of the participants received calculated amounts of alcohol according to their body weight and sex with a targeted blood alcohol content level of 0.05% using the Widmark formula. Hearing was tested in alcohol-free conditions (no alcohol intake within the previous 24 h) and acute alcohol conditions. A test battery composed of pure-tone audiometry, speech reception threshold (SRT), word recognition score (WRS), distortion product otoacoustic emission (DPOAE), gaps-in-noise (GIN) test, and Korean matrix sentence test (testing speech perception in noise) was performed in the 2 conditions. <b><i>Results:</i></b> Acute alcohol intake elevated pure-tone hearing thresholds and SRT but did not affect WRS. Both otoacoustic emissions recorded with DPOAE and the temporal resolution measured with the GIN test were not influenced by alcohol intake. The hearing performance in a noisy environment in both easy (−2 dB signal-to-noise ratio [SNR]) and difficult (−8 dB SNR) conditions was decreased by alcohol. <b><i>Conclusions:</i></b> Acute alcohol elevated auditory perceptive thresholds and affected performance in complex and difficult auditory tasks rather than simple tasks.

scholarly journals Factors Affecting Speech Discrimination in Children with Cochlear Implants: Evidence from Early-Implanted Infants

2016 ◽  
Vol 27 (06) ◽  
pp. 480-488 ◽  
Author(s):  
Jennifer Phan ◽  
Derek M. Houston ◽  
Chad Ruffin ◽  
Jonathan Ting ◽  
Rachael Frush Holt
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Cochlear Implantation ◽  
Pure Tone ◽  
Early Period ◽  
Discrimination Performance ◽  
Speech Discrimination ◽  
Communication Mode ◽  
Factors Affecting ◽  
Pure Tone Average

Background: To learn words and acquire language, children must be able to discriminate and correctly perceive phonemes. Although there has been much research on the general language outcomes of children with cochlear implants (CIs), little is known about the development of speech perception with regard to specific speech processes, such as speech discrimination. Purpose: The purpose of this study was to investigate the development of speech discrimination in infants with CIs and identify factors that might correlate with speech discrimination skills. Research Design: Using a Hybrid Visual Habituation procedure, we tested infants with CIs on their ability to discriminate the vowel contrast /i/-/u/. We also gathered demographic and audiological information about each infant. Study Sample: Children who had received CIs before 2 yr of age served as participants. We tested the children at two post cochlear implantation intervals: 2–4 weeks post CI stimulation (N = 17) and 6–9 mo post CI stimulation (N = 10). Data Collection and Analysis: The infants’ mean looking times during the novel versus old trials of the experiment were measured. A linear regression model was used to evaluate the relationship between the normalized looking time difference and the following variables: chronological age, age at CI stimulation, gender, communication mode, and best unaided pure-tone average. Results: We found that the best unaided pure-tone average predicted speech discrimination at the early interval. In contrast to some previous speech perception studies that included children implanted before 3 yr of age, age at CI stimulation did not predict speech discrimination performance. Conclusions: The results suggest that residual acoustic hearing before implantation might facilitate speech discrimination during the early period post cochlear implantation; with more hearing experience, communication mode might have a greater influence on the ability to discriminate speech. This and other studies on age at cochlear implantation suggest that earlier implantation might not have as large an effect on speech perception as it does on other language skills.

scholarly journals Restoration of High Frequency Auditory Perception After Robot-Assisted or Manual Cochlear Implantation in Profoundly Deaf Adults Improves Speech Recognition

2021 ◽  
Vol 8 ◽  
Author(s):  
Renato Torres ◽  
Hannah Daoudi ◽  
Ghizlene Lahlou ◽  
Olivier Sterkers ◽  
Evelyne Ferrary ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implantation ◽  
High Frequency ◽  
Pure Tone ◽  
Free Field ◽  
Electrode Array ◽  
Electrode Arrays ◽  
Robot Assisted ◽  
Deaf Adults ◽  
Post Implantation

Background and Purpose: Robot-assisted cochlear implantation has recently been implemented in clinical practice; however, its effect on hearing outcomes is unknown. The aim of this preliminary study was to evaluate hearing performance 1 year post-implantation whether the electrode array was inserted manually or assisted by a robot.Methods: Forty-two profoundly deaf adults were implanted either manually (n = 21) or assisted by a robot (RobOtol®, Collin, Bagneux, France) with three different electrode array types. Participants were paired by age, and electrode array type. The scalar position of the electrode array in the cochlea was assessed by 3D reconstruction from the pre- and post-implantation computed tomography. Pure-tone audiometry and speech perception in silence (percentage of disyllabic words at 60 dB) were tested on the implanted ear 1 year post-implantation in free-field conditions. The pure-tone average was calculated at 250–500–750 Hz, 500–1,000–2,000–3,000 Hz, and 3,000–4,000–8,000 Hz for low, mid, and high frequencies, respectively.Results: One year after cochlear implantation, restoration of the high-frequency thresholds was associated with better speech perception in silence, but not with low or mid frequencies (p &lt; 0.0001; Adjusted R2 = 0.64, polynomial non-linear regression). Although array translocation was similar using either technique, the number of translocated electrodes was lower when the electrode arrays had been inserted with the assistance of the robot compared with manual insertion (p = 0.018; Fisher's exact test).Conclusion: The restoration of high-frequency thresholds (3,000–4,000–8,000 Hz) by cochlear implantation was associated with good speech perception in silence. The numbers of translocated electrodes were reduced after a robot-assisted insertion.

The Expected Benefit of Hearing Aids in Quiet as a Function of Hearing Thresholds

2019 ◽  
pp. 63-85
Author(s):  
Peter J. Blamey
Keyword(s):  
Hearing Aids ◽  
Pure Tone ◽  
Full Range ◽  
Retrospective Data ◽  
Monosyllabic Word ◽  
Pure Tone Average ◽  
Hearing Thresholds ◽  
Monosyllabic Words ◽  
The Mean ◽  
The Difference

This chapter aimed to estimate speech perception benefits in quiet for clients with different degrees of hearing loss. The difference between aided and unaided scores on a monosyllabic word test presented binaurally was used as the measure of benefit. Retrospective data for 492 hearing aid users with four-frequency pure-tone average hearing losses (PTA) ranging from 5 dB HL to 76 dB HL in the better ear were analyzed using nonlinear regression. The mean benefit for the perception of monosyllabic words in this group of clients was 22.3% and the maximum expected benefit was 33.6% for a PTA of 52 dB HL. The expected benefit can be expressed as a reduction of the error rate by about half for isolated words and about one quarter for sentences across the full range of PTA.

New possibility for measuring the cortical auditory evoked potentials: the HEARLab

2014 ◽  
Vol 155 (38) ◽  
pp. 1524-1529
Author(s):  
Ádám Bach ◽  
Ferenc Tóth ◽  
Vera Matievics ◽  
József Géza Kiss ◽  
József Jóri ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Evoked Potentials ◽  
Auditory System ◽  
Hearing Aids ◽  
Pure Tone ◽  
Auditory Evoked Potentials ◽  
Normal Hearing ◽  
Speech Stimuli ◽  
Novel Method ◽  
Cortical Auditory Evoked Potentials

Introduction: Cortical auditory evoked potentials can provide objective information about the highest level of the auditory system. Aim: The purpose of the authors was to introduce a new tool, the “HEARLab” which can be routinely used in clinical practice for the measurement of the cortical auditory evoked potentials. In addition, they wanted to establish standards of the analyzed parameters in subjects with normal hearing. Method: 25 adults with normal hearing were tested with speech stimuli, and frequency specific examinations were performed utilizing pure tone stimuli. Results: The findings regarding the latency and amplitude analyses of the evoked potentials confirm previously published results of this novel method. Conclusions: The HEARLAb can be a great help when performance of the conventional audiological examinations is complicated. The examination can be performed in uncooperative subjects even in the presence of hearing aids. The test is frequency specific and does not require anesthesia. Orv. Hetil., 2014, 155(38), 1524–1529.

scholarly journals White Matter Lesions as Possible Predictors of Audiological Performance in Adults after Cochlear Implantation

2021 ◽  
Vol 11 (5) ◽  
pp. 600
Author(s):  
Steffen Knopke ◽  
Hans-Christian Bauknecht ◽  
Stefan Gräbel ◽  
Sophia Marie Häußler ◽  
Agnieszka J. Szczepek ◽  
...  
Keyword(s):  
Speech Perception ◽  
White Matter ◽  
Cochlear Implantation ◽  
Age Groups ◽  
White Matter Lesions ◽  
Periventricular White Matter ◽  
Rehabilitation Outcomes ◽  
Hearing Ability ◽  
Structural Brain Damage ◽  
Oldenburg Sentence Test

The presented prospective study investigated whether structural brain damage, measured with the Fazekas score, could predict hearing rehabilitation outcomes with cochlear implantation (CI). With a follow-up period of 24 months, this study included 49 bilaterally, postlingually hearing impaired CI candidates for unilateral CI (67.3 ± 8.7 years; 20 men, 29 women) older than 50 at the time of implantation. The differences in the predictive value between two age groups, 50–70 year-olds (mid-age; n = 26) and over 70-year-olds (elderly; n = 23), were analyzed. The patients were evaluated using speech perception (SP) measured in quiet (Freiburg monosyllabic test; FMT) and noise (Oldenburg sentence test; OLSA). The subjective hearing ability was assessed using Oldenburg inventory (OI). The Fazekas PVWM score predicted postoperative speech perception two years after CI in the mid-age population. The periventricular white matter lesions (PVWM) could explain 27.4% of the speech perception (FMT) variance. Our findings support the hypothesis about the influence of pre-existing WMLs on CI outcome. We recommend the evaluation of Fazekas score as a predictive factor for post-implantation hearing ability.

Sudden Sensorineural Hearing and Vestibular Loss in a Case of Relapsing Polychondritis

2021 ◽  
pp. 000348942110059
Author(s):  
Özge Akdoğan ◽  
Smirnov Exilus ◽  
Bryan K. Ward ◽  
Justin C. McArthur ◽  
Charles C. Della Santina ◽  
...  
Keyword(s):  
Cochlear Implantation ◽  
Pure Tone ◽  
Relapsing Polychondritis ◽  
Sensorineural Hearing ◽  
High Dose ◽  
Left Auricle ◽  
Vestibular Loss ◽  
Patient Reported ◽  
Loss Of Hearing ◽  
Hearing Outcomes

Objectives: To report a case of profound bilateral sensorineural hearing and vestibular loss from relapsing polychondritis and hearing outcomes after cochlear implantation. Methods: Case report and literature review. Results: A 43 year-old woman developed sudden loss of hearing and balance that progressed over several weeks to bilateral, profound hearing and vestibular loss. Steroid treatments were ineffective. She underwent vestibular physical therapy and left cochlear implantation. About 10 months after her initial presentation, she developed erythema, warmth, swelling, and pain of the left auricle sparing the lobule, flattening of the bridge of her nose, and right ankle swelling, warmth, and skin erythema. A biopsy of the left auricle revealed histopathologic findings consistent with relapsing polychondritis. She was treated with high dose prednisolone. The ear inflammation resolved, however, despite excellent auditory response to pure tone thresholds, the patient reported no improvement in speech perception after cochlear implantation. Conclusions: Relapsing polychondritis can present with rapidly progressive, profound loss of hearing and vestibular function. Hearing outcomes after cochlear implantation can include poor speech discrimination despite good pure tone detection thresholds.

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