Speech Perception and Information-Carrying Capacity for Hearing Aid Users of Different Ages

Hoppe, Ulrich; Hocke, Thomas; Müller, Alexander; Hast, Anne

doi:10.1159/000448349

Cited by 19 publications

(17 citation statements)

References 12 publications

(10 reference statements)

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“…One hundred and forty-seven subjects had recorded speech recognition scores for monosyllables in quiet for the implant ear at the 6-month interval ( Table 3): Mean scores at 6 months for the group were 55% correct (50-75%). There was a significant difference between baseline preoperative scores and 6-month scores for the implanted ear of 44 also a significant difference between 3-and 6-month scores of 7.2% points (4.3-10.0%). Figure 3 shows that the large majority of subjects (96%) had higher postoperative word scores compared to preoperative scores in the implanted ear.…”

Section: Postoperative Speech Recognition In Quietmentioning

confidence: 82%

“…This trend towards better speech recognition in younger patients is not unique to cochlear implant users. The monosyllabic word scores of older hearing aid users are significantly lower than for younger adults [43] and the same is true for speech perception in noise [44]. This had been assumed to be as a consequence of poor quality amplification, but even where amplified speech was presented via headphones there was still a reduction in word recognition ability with increasing age [43].…”

Section: Discussionmentioning

confidence: 99%

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Outcomes for a clinically representative cohort of hearing-impaired adults using the Nucleus® CI532 cochlear implant

Hey¹,

Neben²,

Stöver

et al. 2020

Eur Arch Otorhinolaryngol

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Purpose Hearing performance data was collected from a large heterogeneous group of subjects implanted with the Coch-lear™ Nucleus® CI532 with Slim Modiolar Electrode, for the purposes of postmarket clinical follow-up. Data was analysed for factors which may predict postoperative speech recognition scores. Methods Data was collected retrospectively from five German clinics for 159 subjects from March 2017 to August 2018. Hearing thresholds and recognition scores for monosyllabic words in quiet and sentences in noise were measured preoperatively and at 3 and 6 months postoperatively. Results There was a mean gain of 44% points (95% CI 39-49%) at 6 months in monosyllable scores in quiet for implanted ears. Preoperative hearing thresholds in implant ears increased systematically with decreasing age; however, younger subjects had better baseline monosyllable scores with hearing aids compared with older subjects. Baseline performance alone explained 14% of the variation in postoperative scores. Residual hearing was preserved on average to within 22 dB at 250 Hz and 30 dB at 500 Hz of preoperative levels. Conclusions In a large and varied cohort of routinely treated hearing-impaired adults, speech recognition with the CI532 for German monosyllabic words in quiet at 6 months was equivalent to performance reported at one year or more in other published studies. Although younger subjects had poorer preoperative pure-tone thresholds, they had better preoperative word recognition scores compared with older subjects, and also had higher post implant scores. Further research is required to identify if this phenomenon is just applicable to German health system assessment and referral practices.

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Section: Postoperative Speech Recognition In Quietmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Outcomes for a clinically representative cohort of hearing-impaired adults using the Nucleus® CI532 cochlear implant

Hey¹,

Neben²,

Stöver

et al. 2020

Eur Arch Otorhinolaryngol

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“…Relevant differences only arise if the WRS max is not achieved. The efficiency Q quantifies the actually attained proportion of the greatest possible speech recognition (information-carrying capacity [ 6 , 9 ]) and can be used, in addition to the difference, for the assessment of a hearing aid.…”

Section: Discussionmentioning

confidence: 99%

Speech recognition with hearing aids for 10 standard audiograms

Dörfler

Hocke²,

Hast

et al. 2020

HNO

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Background Improvement of speech perception in quiet is an important goal of hearing aid provision. In practice, results are highly variable. The aim of this study was to investigate the relationship between type and extent of hearing loss (audiogram type), maximum word recognition score, and aided speech perception. Materials and methods Pure tone and speech audiometric data of 740 ears in 370 patients were reviewed. All subjects visited our hearing center for hearing aid evaluation between 2012 and 2017. The maximum word recognition score (WRS max ) and the monosyllabic speech recognition score with hearing aids, WRS 65 (HA) were analyzed for 10 different standard audiogram types. Results The WRS 65 (HA) with hearing aids for different degrees of hearing loss is, within error boundaries, comparable to previous investigations and shows a difference of 10–20 percentage points to the WRS max . This difference tends to be larger for flat and moderately sloping audiograms compared to steep-sloping audiograms. The ratio WRS 65 (HA)/WRS max can be interpreted as an efficiency factor for hearing aid provision, since it relates speech recognition with hearing aids to the maximally achievable information carrying capacity of the hearing impaired. Conclusion The expectation regarding hearing aid provision has to be adjusted according to maximum word recognition score, the derived quality measures, degree of hearing loss, and audiogram type.

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“…When evaluated together with the pure-tone audiogram, WRS max allows for an initial assessment of the best speech recognition that can be achieved with acoustic amplification [ 10 , 24 ]. For most individuals, WRS max is higher than WRS 65 (HA) [ 12 , 13 ]. Halpin and Rauch [ 6 ] discussed WRS max in connection with the information-carrying capacity (ICC) of the auditory system.…”

Section: Introductionmentioning

confidence: 99%

Maximum preimplantation monosyllabic score as predictor of cochlear implant outcome

Hoppe

Hocke²,

Hast

et al. 2019

HNO

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Objective This study investigated the speech perception of cochlear implant (CI) recipients with measurable preoperative ipsilateral speech perception. These data should support improved individual counselling of CI candidates. Materials and methods Pre- and postoperative speech audiometric parameters were analyzed, including maximum score for phonemically balanced words (PB max ) and monosyllabic score at a normal conversational level of 65 dB SPL , with hearing aids one hand and CI on the other. Data of 284 experienced adult CI wearers were grouped and evaluated in terms of preoperative PB max . Results The preoperative PB max was exceeded by the postoperative monosyllabic score in 96% of cases. The overall median postoperative score was 72.5%. The groups with preoperative PB max > 0% showed significantly better speech perception scores with CI than the group with PB max = 0%. Median improvement compared to the preoperative monosyllabic score with hearing aids was 65 percentage points, independent of preoperative PB max . Conclusion The preoperatively measured PB max may be used as a predictor for the minimum speech perception obtained with CI. This is of high clinical relevance for CI candidates with a PB max above zero.

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Speech Perception and Information-Carrying Capacity for Hearing Aid Users of Different Ages

Cited by 19 publications

References 12 publications

Outcomes for a clinically representative cohort of hearing-impaired adults using the Nucleus® CI532 cochlear implant

Outcomes for a clinically representative cohort of hearing-impaired adults using the Nucleus® CI532 cochlear implant

Speech recognition with hearing aids for 10 standard audiograms

Maximum preimplantation monosyllabic score as predictor of cochlear implant outcome

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