Clinical outcomes with the Kanso™ off-the-ear cochlear implant sound processor

Mauger, Stefan J.; Jones, Marian; Nel, Esti; Dot, Janine Del

doi:10.1080/14992027.2016.1265156

Cited by 11 publications

(12 citation statements)

References 30 publications

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“…Over 70% of CI users stated that the RONDO was very comfortable, which is in agreement with results previously reported by Dazert et al [14], Mertens et al [12], and Távora-Vieira et al [21]. Mauger et al [20] also reported similar findings with audio processors from a different CI manufacturer. Importantly, subjects reported improved comfort in wearing eyeglasses with the RONDO due to the positioning of the RONDO further back from the pinna.…”

Section: Discussionsupporting

confidence: 88%

“…Interestingly, the results showed that comfort and sound quality were the main reasons subjects chose to use the RONDO instead of the OPUS 2, with noise perception deemed a less important factor, which accords with the results published by Dazert et al [14] and Mauger et al [20] for another brand. Wimmer et al previously reported that the OPUS 2 could be better than the RONDO in noisy situations [6]; however these measurements were made in a clinical setting and not based on real-life listening situations.…”

Section: Discussionsupporting

confidence: 87%

“…In a study reported from a different CI manufacturer [ (20] testing in a sound booth revealed some differences between processors in spatially separated noise, but participants did not report any functional differences in their real-world speech-in-noise experience.…”

Section: Discussionmentioning

confidence: 92%

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Comparing Behind-the-Ear and Single-Unit Cochlear Implant Audio Processors in 83 Newly Implanted Subjects

Godey¹,

Darrouzet²,

Hermann³

et al. 2020

J Hear Sci

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Background:The RONDO is a single-unit device that merges both the OPUS 2 behind-the-ear audio processor and the coil into a single housing. The study aims to assess the perceived auditory abilities and opinions of newly implanted subjects using the OPUS 2 and/or the RONDO in everyday life. Material and methods:We studied 83 newly implanted subjects who received the RONDO and OPUS 2 and were free to use whichever processor they preferred or a combination of the two. User satisfaction was evaluated after at least 4 weeks of use (after the first fitting) using the device-specific RONDO questionnaire.Results: Results showed that 77% of subjects were satisfied with the RONDO in general, and 92% of subjects either preferred to use the RONDO or liked both audio processors equally while wearing eyeglasses. Overall, 91% of subjects would recommend the RONDO to other CI users. RONDO was significantly (p<0.05) preferred at home, for cultural events, or when wearing glasses; OPUS 2 was preferred for sport or while wearing a cap. Conclusions:The RONDO was associated with a high degree of user satisfaction among newly implanted CI users and offers CI users further options in terms of wearer comfort and cosmetic appearance. Thus, CI users can, if they wish, switch from the OPUS 2 to the RONDO without affecting their hearing ability or speech understanding.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 87%

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Comparing Behind-the-Ear and Single-Unit Cochlear Implant Audio Processors in 83 Newly Implanted Subjects

Godey¹,

Darrouzet²,

Hermann³

et al. 2020

J Hear Sci

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“…However, testing at levels of 40 and 50 dB SPL is not often conducted in practice or published in research studies. The SRT for Freiburg numbers shows a direct correlation to 500 Hz hearing threshold with an offset of 18 dB 30,38 . The Freiburg numbers SRT allows for a quick check of near‐threshold mapping of CIs, very similar to the SRT for sentences in quiet.…”

Section: Resultsmentioning

confidence: 81%

Speech comprehension across multiple CI processor generations: Scene dependent signal processing

Hey¹,

Böhnke²,

Mewes³

et al. 2021

Laryngoscope Investig Oto

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Objectives In clinical practice, characterization of speech comprehension for cochlear implant (CI) patients is typically administered by a set of suprathreshold measurements in quiet and in noise. This study investigates speech comprehension of the three most recent cochlear implant sound processors; CP810, CP910, and CP1000 (Cochlear Limited). To compare sound processor performance across generations and input dynamic range changes, the state‐of‐the art signal processing technologies available in each sound processor were enabled. Outcomes will be assessed across a range of stimulation intensities, and finally analyzed with respect to normal hearing listeners. Methods In a prospective study, 20 experienced postlingually deafened CI patients who received a Nucleus CI in the ENT department of the University Hospital of SH in Kiel were recruited. Speech comprehension was measured in quiet at 40, 50, and 65 dBSPL with monosyllabic words as well as by speech reception threshold for two‐digit numbers. In noise, speech reception thresholds were measured with the adaptive German matrix test with speech and noise in front. Results We found that high levels of open‐set speech comprehension are achieved at suprathreshold presentation levels in quiet. However, results at lower test levels have remained mostly unchanged for tested sound processors with default dynamic range. Expanding the lower limit of the acoustic input dynamic range yields better speech comprehension at lower presentation levels. In noise the application of ForwardFocus improves the speech reception. Overall, a continuous improvement for speech perception across three generations of CI sound processors was found. Conclusions Findings motivate further development of signal pre‐processing, an additional focus of clinical work on lower stimulation levels, and automation of ForwardFocus. Level of evidence 2.

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“…7 Studies with CI recipients have reported improvements of up to 37% or 6 dB in presence of noise source(s) located on the side(s) and/or back of the listener [8][9][10] and up to 23% or 5.3 dB in diffused noise. 7,[11][12][13][14] The benefit of adaptive beamforming has also been demonstrated in children (5.8 dB improvement). 15 The speech perception data reported above have mainly been collected in sound-alone test environments.…”

mentioning

confidence: 90%

The Benefit of Remote and On-Ear Directional Microphone Technology Persists in the Presence of Visual Information

Dorman

Natale

Agrawal³

2020

J Am Acad Audiol

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Background Both the Roger remote microphone and on-ear, adaptive beamforming technologies (e.g., Phonak UltraZoom) have been shown to improve speech understanding in noise for cochlear implant (CI) listeners when tested in audio-only (A-only) test environments. Purpose Our aim was to determine if adult and pediatric CI recipients benefited from these technologies in a more common environment—one in which both audio and visual cues were available and when overall performance was high. Study Sample Ten adult CI listeners (Experiment 1) and seven pediatric CI listeners (Experiment 2) were tested. Design Adults were tested in quiet and in two levels of noise (level 1 and level 2) in A-only and audio-visual (AV) environments. There were four device conditions: (1) an ear canal-level, omnidirectional microphone (T-mic) in quiet, (2) the T-mic in noise, (3) an adaptive directional mic (UltraZoom) in noise, and (4) a wireless, remote mic (Roger Pen) in noise. Pediatric listeners were tested in quiet and in level 1 noise in A-only and AV environments. The test conditions were: (1) a behind-the-ear level omnidirectional mic (processor mic) in quiet, (2) the processor mic in noise, (3) the T-mic in noise, and (4) the Roger Pen in noise. Data Collection and Analyses In each test condition, sentence understanding was assessed (percent correct) and ease of listening ratings were obtained. The sentence understanding data were entered into repeated-measures analyses of variance. Results For both adult and pediatric listeners in the AV test conditions in level 1 noise, performance with the Roger Pen was significantly higher than with the T-mic. For both populations, performance in level 1 noise with the Roger Pen approached the level of baseline performance in quiet. Ease of listening in noise was rated higher in the Roger Pen conditions than in the T-mic or processor mic conditions in both A-only and AV test conditions. Conclusion The Roger remote mic and on-ear directional mic technologies benefit both speech understanding and ease of listening in a realistic laboratory test environment and are likely do the same in real-world listening environments.

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Clinical outcomes with the Kanso™ off-the-ear cochlear implant sound processor

Abstract: Dual-microphone directional processing provides significant benefit over a single microphone for OTE processors. This study demonstrates clinical outcomes and acceptance of the Kanso OTE sound processor.

Cited by 11 publications

References 30 publications

Comparing Behind-the-Ear and Single-Unit Cochlear Implant Audio Processors in 83 Newly Implanted Subjects

Comparing Behind-the-Ear and Single-Unit Cochlear Implant Audio Processors in 83 Newly Implanted Subjects

Speech comprehension across multiple CI processor generations: Scene dependent signal processing

The Benefit of Remote and On-Ear Directional Microphone Technology Persists in the Presence of Visual Information

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