Pediatric Outcomes with the Nucleus 24 Contour: North American Clinical Trial

2002 ◽  
Vol 111 (5_suppl) ◽  
pp. 56-61 ◽  
Author(s):  
Steve Staller ◽  
Jennifer Arcaroli ◽  
Aaron Parkinson ◽  
Patti Arndt
Keyword(s):  
Speech Perception ◽  
Hearing Aids ◽  
Electrode Array ◽  
Profound Hearing Loss ◽  
Open Set ◽  
Adults And Children ◽  
The Mean ◽  
Nucleus 24 ◽  
Indications For Use ◽  
Better Than

The Nucleus 24 Contour is a new cochlear implant that has recently undergone clinical trials in adults and children. The Contour uses the same electronics as the previous-generation Nucleus 24 (CI24M) but incorporates a downsized receiver-stimulator and a perimodiolar electrode array. The indications for use were expanded to include children as young as 12 months of age and children 24 months of age and older with severe to profound hearing loss who had open-set word recognition up to 30%. The Contour was successfully implanted in 256 children. The mean level of postoperative speech perception with the Contour was significantly better than the preoperative baseline with hearing aids on all measures. Children who had open-set speech perception in an audition-only condition before surgery demonstrated higher levels of postoperative performance with the Contour than children with no open-set speech perception before surgery.

scholarly journals Speech Perception Outcomes in Older Children Who Use Multichannel Cochlear Implants: Older is Not Always Poorer

2002 ◽  
Vol 111 (5_suppl) ◽  
pp. 97-101 ◽  
Author(s):  
Richard C. Dowell ◽  
Elizabeth Winton ◽  
Shani J. Dettman ◽  
Elizabeth J. Barker ◽  
Katie Hill ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Linear Regression Analysis ◽  
Informed Choice ◽  
Multiple Linear Regression Analysis ◽  
Older Children ◽  
Profound Hearing Loss ◽  
Open Set ◽  
The Mean

Speech perception outcomes for early-deafened children who undergo implantation as teenagers or young adults are generally reported to be poorer than results for young children. It is important to provide appropriate expectations when counseling adolescents and their families to help them make an informed choice regarding cochlear implant surgery. The considerable variation of results in this group makes this process more difficult. This study considered a number of factors in a group of 25 children who underwent implantation in Melbourne between the ages of 8 and 18 years. Each subject completed open-set speech perception testing with Bamford-Kowal-Bench sentences before and after implantation and preoperative language testing with the Peabody Picture Vocabulary Test. Data were collected regarding the type of hearing loss, age at implantation, age at hearing aid fitting, audiometric details, and preoperative and postoperative communication mode. Results were submitted to a stepwise multiple linear regression analysis with postoperative open-set sentence scores as the dependent variables. The analysis suggested that 3 factors have a significant predictive value for speech perception after implantation: preoperative open-set sentence score, duration of profound hearing loss, and equivalent language age. These 3 factors accounted for 66% of the variance in this group. The results of this study suggest that children who have useful speech perception before implantation, and higher age-equivalent scores on language measures, would be expected to do well with a cochlear implant. Consistent with other studies, a shorter duration of profound hearing loss is also advantageous. The mean sentence score for this group, 47%, was not significantly different from the mean result across all children in the Melbourne program.

Comparison of open-set speech-perception performance of children with cochlear implants and hearing aids

2004 ◽  
Vol 5 (sup1) ◽  
pp. 128-130
Author(s):  
Min-Jung Heo ◽  
Lee-Suk Kim ◽  
Woo-Yong Bae ◽  
Young-Deok Park
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Hearing Aids ◽  
Open Set

scholarly journals Evidence of Acclimatization in Persons with Severe-to-Profound Hearing Loss

2003 ◽  
Vol 14 (02) ◽  
pp. 084-099 ◽  
Author(s):  
Francis K. Kuk ◽  
Lisa Potts ◽  
Michael Valente ◽  
Lidia Lee ◽  
Jay Picirrillo
Keyword(s):  
Hearing Loss ◽  
Speech Recognition ◽  
Hearing Aids ◽  
Hearing Aid ◽  
Profound Hearing Loss ◽  
Secondary Purpose ◽  
Objective Performance ◽  
Recognition Testing ◽  
The One ◽  
Better Than

The present study examined the phenomenon of acclimatization in persons with a severe-to-profound hearing loss. A secondary purpose was to examine the efficacy of a digital nonlinear power hearing aid that has a low compression threshold with expansion for this population. Twenty experienced hearing aid users wore the study hearing aids for three months and their performance with the study hearing aids was evaluated at the initial fitting, one month, and three months after the initial fitting. Performance of their current hearing aids was also evaluated at the initial fitting. Speech recognition testing was conducted at input levels of 50 dB SPL and 65 dB SPL in quiet, and 75 dB SPL in noise at a +10 SNR. Questionnaires were used to measure subjective performance at each evaluation interval. The results showed improvement in speech recognition score at the one-month evaluation over the initial evaluation. No significant improvement was seen at the three-month evaluation from the one-month visit. In addition, subjective and objective performance of the study hearing aids was significantly better than the participants' own hearing aids at all evaluation intervals. These results provided evidence of acclimatization in persons with a severe-to-profound hearing loss and reinforced the precaution that any trial of amplification, especially from linear to nonlinear mode, should consider this phenomenon.

Comparison of open-set speech-perception performance of children with cochlear implants and hearing aids

2004 ◽  
Vol 5 (S1) ◽  
pp. 128-130
Author(s):  
Min-Jung Heo ◽  
Lee-Suk Kim ◽  
Woo-Yong Bae ◽  
Young-Deok Park
Keyword(s):  
Speech Perception ◽  
Cochlear Implants ◽  
Hearing Aids ◽  
Open Set

Speech Perception in a Communicative Context

1999 ◽  
Vol 42 (3) ◽  
pp. 540-552 ◽  
Author(s):  
Mark C. Flynn ◽  
Richard C. Dowell
Keyword(s):  
Speech Perception ◽  
Time Delay ◽  
Hearing Impairment ◽  
Hearing Aids ◽  
Open Set ◽  
Stimulus Sentence ◽  
Question And Answer ◽  
Actual Speech ◽  
S Period ◽  
Communicative Context

By diminishing the role of communicative context, traditional tests of speech perception may underestimate or misrepresent the actual speech perception abilities of adults with a hearing impairment. This study investigates this contention by devising an assessment that may better simulate some aspects of "reallife" speech perception. A group of 31 participants with a severe-to-profound hearing impairment took part in a series of speech perception tests while wearing their hearing aids. The tests used question/answer or adjacency pairs, where the stimulus sentence was preceded by a question spoken by the participant. Four conditions were included: (a) where there was no initiating sentence, as in a traditional open-set speech perception test; (b) where the initiating question was neutral (e.g. "Why?"); (c) where there was a disruptive semantic relationship between the question and answer; and (d) where there was a strong contextual relationship between the question and answer. The time delay between the question and answer was also varied. Results demonstrated that in all conditions where there was a preceding question speech perception improved, and increasing the cohesion between the question and the reply improved speech perception scores. Additionally, time delay and the relatedness of the reply interacted. The effects of semantic context appeared to diminish over a 10-s period while other linguistic effects remained more constant. These results indicate the utility of simulating communicative environments within speech perception tests.

scholarly journals Conventional Amplification for Children and Adults with Severe-to-Profound Hearing Loss

2018 ◽  
Vol 39 (04) ◽  
pp. 364-376 ◽  
Author(s):  
Emily Benson ◽  
Ryan McCreery ◽  
Lindsey Jorgensen
Keyword(s):  
Hearing Loss ◽  
Hearing Aids ◽  
Dynamic Range ◽  
Review Article ◽  
Assistive Device ◽  
Confounding Factors ◽  
Profound Hearing Loss ◽  
Adults And Children ◽  
Reduced Dynamic

AbstractThe primary goal of amplification is to restore audibility without causing discomfort; for someone with severe-to-profound hearing loss, the reduced dynamic range poses unique challenges in hearing-assistive device fitting. These challenges, including physiological limitation, processing difficulties, technology constraints, and other confounding factors, must be considered when selecting, fitting, and counseling for appropriate amplification. Many of the advanced features in hearing aids do not adequately address the unique characteristics of patients with severe-to-profound hearing loss. This review article will attempt to unravel some of the challenges and associated considerations when fitting adults and children with severe-to-profound hearing loss.

scholarly journals The Effects of Manufacturer’s Prefit and Real-Ear Fitting on the Predicted Speech Perception of Children with Severe to Profound Hearing Loss

2019 ◽  
Vol 30 (05) ◽  
pp. 346-356 ◽  
Author(s):  
Tian Kar Quar ◽  
Cila Umat ◽  
Yong Yee Chew
Keyword(s):  
Hearing Loss ◽  
Speech Perception ◽  
Hearing Aids ◽  
Speech Intelligibility ◽  
Hearing Aid ◽  
High Input ◽  
Profound Hearing Loss ◽  
High Frequency Region ◽  
Cross Sectional ◽  
Significant Difference

AbstractThe use of probe microphone measures in hearing aid verification is often neglected or not fully used by practitioners. Some practitioners rely on simulated gain and output provided by manufacturer's fitting software to verify hearing aids.This study aims to evaluate the effectiveness of manufacturer’s prefit procedure in matching the prescribed real-ear targets. It also aims to study its correlated impact on the predicted speech perception in children with severe and profound hearing loss.This cross-sectional experiment was carried out by measuring the output of hearing aids based on prefit versus real-ear at low-, moderate-, and high-input levels. The predicted speech perception for different hearing aid fittings was determined based on the Speech Intelligibility Index (SII).Sixteen children (28 ears) aged between 4 and 7 yr, with severe to profound sensorineural hearing loss took part in the study.Two different types of hearing aids (Phonak and Unitron) were programmed based on their respective manufacturers’ Desired Sensation Levels (DSL) v5 Child procedure. The hearing aids were then verified using coupler-based measurements and individual real-ear-to-coupler differences. The prefit outputs were compared with the DSL v5 Child–prescribed outputs at low-, moderate-, and high-input levels. The hearing aids were then adjusted to closely match the prescribed output. The SIIs were calculated for the fittings before and after adjustment.Sixty four percent of fittings that were based on the prefit procedure achieved the optimal fit-to-targets, with less than 5-dB RMS deviations from the DSL v5 Child targets. After adjusting the hearing aids to attempt to meet the DSL v5 Child targets, 75% of the ears tested achieved the optimal fit-to-targets. On average, hearing aid outputs generated by the manufacturer’s prefit procedure had good and reasonable agreement with the DSL v5 Child–prescribed outputs at low- and mid-frequencies. Nonetheless, at 4000 Hz, the hearing aid output mostly fell below the DSL v5 Child–prescribed outputs. This was still the case even after the hearing aid was adjusted to attempt to match with the targets. At low input level, some prefit outputs were found to be higher than the prescribed outputs. The deviations of prefit outputs from the prescribed outputs were dependent on the type of hearing aid and input levels. There was no significant difference between the SII calculated for fittings based on the prefit and adjusted fit.Prefit procedure tends to produce outputs that were below the DSL v5 Child–prescribed outputs, with the largest mean difference at 4000 Hz. Even though the hearing aid gains were adjusted to attempt to match with the targets, the outputs were still below the targets. The limitations of hearing aids to match the DSL v5 Child targets at high-frequency region have resulted in no improvement in the children’s predicted speech perception.

scholarly journals Effect of sound amplification in speech perception in elderly with and without tinnitus

CoDAS ◽  
2015 ◽  
Vol 27 (4) ◽  
pp. 319-325 ◽  
Author(s):  
Tiago de Melo Araujo ◽  
Maria Cecília Martinelli Iório
Keyword(s):  
Hearing Loss ◽  
Data Analysis ◽  
Speech Perception ◽  
Hearing Aids ◽  
Acoustic Stimulation ◽  
Elderly Individuals ◽  
Auditory Prostheses ◽  
Sound Amplification ◽  
Effective Use ◽  
Better Than

PURPOSE: To verify the effect of the use of auditory prostheses on speech perception tests in elderly individuals with and without tinnitus having hearing impairment.METHODS: We evaluated 24 elderly patients with moderate sensorineural hearing loss, aged between 60 and 70 years, distributed into two groups according to the presence or absence of tinnitus. All of them were fitted with micro-canal auditory prostheses from the same manufacturer and model, and underwent speech perception tests. The assessments were performed with and without the amplification devices after 1 and 3 months of effective use. For data analysis, Mann-Whitney test was used.RESULTS: Elderly people from the tinnitus group presented lower performance in speech perception tests than those from the group without tinnitus. In the evaluations with the devices, the performance of both groups was better than when they were evaluated without hearing aids.CONCLUSION: The acoustic stimulation through the effective use of hearing aids produced better speech perception, regardless of the presence of tinnitus.

Performance of Cochlear Implant Patients as a Function of Time

1990 ◽  
Vol 33 (3) ◽  
pp. 511-519 ◽  
Author(s):  
Lynn G. Spivak ◽  
Susan B. Waltzman
Keyword(s):  
Speech Recognition ◽  
Speech Perception ◽  
Cochlear Implant ◽  
Hearing Aids ◽  
Prognostic Indicator ◽  
Processing Scheme ◽  
Open Set ◽  
Time Period ◽  
Recognition Ability ◽  
Over Time

The speech perception abilities of 15 patients were measured preoperatively using hearing aids and postoperatively using the Nucleus 22-channel cochlear implant over a period of 1, 2, or 3 years. Analysis of mean data revealed that, although the greatest amount of improvement in speech perception scores occurred between the preoperative and 3-month poststimulation evaluation, there was also significant improvement in perception of segmental features and open-set speech recognition over the 3-year time period. When individual patient data were examined, however, it was clear that these improvements were due, in large part, to the performance of a subset of patients who had measurable open-set speech recognition abilities at the time of their 3-month, poststimulation evaluation. Subjects who used the processing scheme that included coding of F1 showed significantly more improvement over time than subjects who used the original FOF2 processing scheme exclusively. It was concluded that open-set speech recognition ability at 3 months is an important prognostic indicator of continued improvement in speech perception abilities over time.

scholarly journals Benefits of Auditory Training for Aided Listening by Older Adults

2013 ◽  
Vol 22 (2) ◽  
pp. 335-338 ◽  
Author(s):  
Judy R. Dubno
Keyword(s):  
Older Adults ◽  
Speech Perception ◽  
Hearing Aids ◽  
Training Programs ◽  
Training System ◽  
Auditory Training ◽  
Future Research ◽  
Large Individual ◽  
Open Set ◽  
High Level

PurposeIn this article, the authors provide an overview of auditory training programs for aided listening by older adults, review criteria for evaluating effectiveness, summarize results of published studies, report on 2 training programs currently undergoing assessment, and discuss directions and needs for future research.MethodExperiments are ongoing to evaluate 2 individual, computer-based speech-perception training programs: Indiana University (IU) word-based training and the Speech Perception Assessment and Training System (SPATS). Training and control subjects are older adults with mild-to-severe hearing loss. Subjects train for about 30 hr with monaurally presented, spectrally shaped stimuli (IU) or through loudspeakers with their own hearing aids (SPATS). Displays and feedback use auditory and visual/orthographic cues. Outcome measures include objective measures of speech recognition in noise and other training benefits.ResultsSignificant improvements were observed in open-set recognition of trained sounds, words, phrases, and sentences. Large individual differences in training benefit were apparent. Generalization varied with the speech-perception task, competing noise, listening strategy, and pretraining scores.ConclusionsHigh-level evidence is needed to support the effectiveness of auditory training for older adults as a supplement to aided listening. Studies are needed to predict who will benefit from specific types of training, to assess compliance and engagement, and to discover benefits beyond communication.

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