Clinical Trial Results with the MED-EL Fine Structure Processing Coding Strategy in Experienced Cochlear Implant Users

Müller, J. M.; Brill, Stefan; Hagen, Rudolf; Moeltner, Alexander; Brockmeier, Steffi Johanna; Stark, Thomas; Helbig, Silke; Maurer, Jan; Zahnert, Thomas; Zierhofer, Clemens; Nopp, Peter; Anderson, Ilona

doi:10.1159/000337089

Cited by 54 publications

(34 citation statements)

References 46 publications

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“…Riss et al [21] found that there were no statistical significance differences whether FSP or CIS were used. Müller et al [22] compared FSP and HDCIS, and they showed that both performed equally in speech perception tests. Pitch scaling showed that FSP performed at least as well as HDCIS.…”

Section: Discussionmentioning

confidence: 99%

Contralateral Bimodal Stimulation: A Way to Enhance Speech Performance in Arabic-Speaking Cochlear Implant Patients

Abdeltawwab

Khater²,

El‐Anwar³

2016

ORL

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Background: The combination of acoustic and electric stimulation as a way to enhance speech recognition performance in cochlear implant (CI) users has generated considerable interest in the recent years. The purpose of this study was to evaluate the bimodal advantage of the FS4 speech processing strategy in combination with hearing aids (HA) as a means to improve low-frequency resolution in CI patients. Methods: Nineteen postlingual CI adults were selected to participate in this study. All patients wore implants on one side and HA on the contralateral side with residual hearing. Monosyllabic word recognition, speech in noise, and emotion and talker identification were assessed using CI with fine structure processing/FS4 and high-definition continuous interleaved sampling strategies, HA alone, and a combination of CI and HA. Results: The bimodal stimulation showed improvement in speech performance and emotion identification for the question/statement/order tasks, which was statistically significant compared to patients with CI alone, but there were no significant statistical differences in intragender talker discrimination and emotion identification for the happy/angry/neutral tasks. The poorest performance was obtained with HA only, and it was statistically significant compared to the other modalities. Conclusion: The bimodal stimulation showed enhanced speech performance in CI patients, and it improves the limitations provided by electric or acoustic stimulation alone.

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Section: Discussionmentioning

confidence: 99%

Contralateral Bimodal Stimulation: A Way to Enhance Speech Performance in Arabic-Speaking Cochlear Implant Patients

Abdeltawwab

Khater²,

El‐Anwar³

2016

ORL

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“…In studies with larger subject groups, the effects of FSP can be measured after a relatively short period. Muller et al [6 ]studied the effect of FSP on monosyllable and vowel discrimination and sound quality in 46 experienced CI users. These subjects were followed up for 6 months.…”

Section: Discussionmentioning

confidence: 99%

“…Studies focusing on acute or short-term effects of FSP did not find any improvement in speech perception [2,3]. When patients are followed up for a longer period of time, significant improvements in speech perception in quiet and in noise have been reported [4,5,6]. However, others reported no benefit of FSP even after 12 months of experience [7].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Improvement of Speech Perception with the Fine Structure Processing Coding Strategy in Cochlear Implants

Punte¹,

Bodt²,

Heyning³

2014

ORL

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Aims: To investigate the long-term effects of the fine structure processing (FSP) coding strategy on speech perception in noise and quality of life in experienced cochlear implant (CI) users. Methods: In a prospective comparative clinical trial, 32 experienced postlingually deafened CI recipients were upgraded from the Tempo+ to the Opus 2 audio processor, implementing FSP in one group and high-definition continuous interleaved sampling (HDCIS) coding strategy in another group with identical frequency ranges. Speech perception in noise testing and the Speech, Spatial and Qualities (SSQ) questionnaire were administered at 0, 6, 12 and 24 months after the upgrade. Results: FSP yielded significant long-term improvement of speech perception in noise of in total 13.2 dB from 16.2 dB SNR at the upgrade to 3.0 dB SNR after 24 months of FSP experience. No significant improvement of speech perception in noise over time was measured for the HDCIS group. With the SSQ questionnaire, a significant benefit of the FSP coding strategy was observed. Conclusions: The FSP coding strategy as implemented in the Med-EL Opus 2 audio processor improves speech perception in noise. This beneficial effect of FSP on speech perception in noise is not immediate but is significant after 12 months and further improves up to 24 months after implementation of FSP.

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“…This might be due to the degraded signal provided by the CI or by CI users' inability to discriminate or process all the information that is actually transmitted by the implant. Some advances in speech perception could be reached by newer coding strategies [3,4]. However, considering the different quality of electric representation of the acoustic environment with limited frequency representation provided by a CI, auditory effects on the phonetic and spectral characteristics of speech can be expected in CI users.…”

Section: Introductionmentioning

confidence: 99%

Speech Production Quality of Cochlear Implant Users with Respect to Duration and Onset of Hearing Loss

Ruff¹,

Nöth

Müller³

et al. 2017

ORL

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Purpose: To assess whether postlingual onset and shorter duration of deafness before cochlear implant (CI) provision predict higher speech intelligibility results of CI users. Methods: For an objective judgement of speech intelligibility, we used an automatic speech recognition system computing the word recognition rate (WR) of 50 adult CI users and 50 age-matched control individuals. All subjects were recorded reading a standardized text. Subjects were divided into three groups: pre- or perilingual deafness (A), both >2 years before implantation, postlingual deafness <2 years before implantation (B), or postlingual deafness >2 years before implantation (C). Results: CI users with short duration of postlingual deafness (B) had a significantly higher WR (median 74%) than CI users with long duration of postlingual deafness (C; 68%, p < 0.001) or pre-/perilingual onset (A; 56%, p < 0.001). Compared to their control groups only CI users with short duration of postlingual deafness reached similar WR, others showed significantly lower WR. Other factors such as hearing loss onset, duration of CI use, or duration of amplified hearing showed no consistent influence on speech quality. Conclusions: The speech production quality of adult CI users shows dependencies on the onset and duration of deafness. These features need to be considered while planning rehabilitation.

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Clinical Trial Results with the MED-EL Fine Structure Processing Coding Strategy in Experienced Cochlear Implant Users

Cited by 54 publications

References 46 publications

Contralateral Bimodal Stimulation: A Way to Enhance Speech Performance in Arabic-Speaking Cochlear Implant Patients

Contralateral Bimodal Stimulation: A Way to Enhance Speech Performance in Arabic-Speaking Cochlear Implant Patients

Long-Term Improvement of Speech Perception with the Fine Structure Processing Coding Strategy in Cochlear Implants

Speech Production Quality of Cochlear Implant Users with Respect to Duration and Onset of Hearing Loss

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