An Auditory Brainstem Implant System

Jackson, Kim; Mark, Gerhard; Helms, J.; Mueller, J; Behr, Robert

doi:10.1044/1059-0889(2002/015)

Cited by 28 publications

(14 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The extent of information provided is thought to facilitate lip-reading and the recognition of environmental sounds [9,16,17,18,19,22]. However, significant functional auditory-alone speech recognition is not expected [30,31,32].…”

Section: Discussionmentioning

confidence: 99%

“…All patients were implanted using the surgical procedure as described by Matthies et al [16] (2000), Behr et al [18] (2007) and Jackson et al [22] (2002); 6 participants received the MED-EL COMBI 40+ and 26 the ABI. The ABI is a development of the COMBI 40+ offering an electronic platform, which allows a maximum stimulation rate of 50.760 compared to 18.180 pulses/second, which was possible with the COMBI 40+.…”

Section: Methodsmentioning

confidence: 99%

“…Besides the electronics there is no difference between the 2 implants. Both feature a ceramic housing, offer the CIS+ speech-coding strategy [29], and comprise an electrode carrier with 13 (12 stimulation and 1 reference) platinum contacts partially embedded in a preshaped flat silicone paddle [18,22]. In addition, the ABI electrode features a polyester mesh to increase the stability of the electrode array on the surface of the cochlear nucleus.…”

Section: Methodsmentioning

confidence: 99%

“…However, only a minority of the patients in the aforementioned studies achieved open-set speech discrimination and the speech recognition of individuals with an ABI varied considerably; most patients use their ABI to facilitate lip-reading and can only recognize environmental sounds [9,15,16,17,18,19,22]. Importantly, even those with strongly limited speech recognition reported being very satisfied with their implant, showing that NF2 patients can gain remarkable objective and subjective benefits from ABI use [18].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Auditory Brainstem Implantation Improves Speech Recognition in Neurofibromatosis Type II Patients

Matthies¹,

Brill

Kaga

et al. 2013

ORL

Self Cite

View full text Add to dashboard Cite

This prospective study aimed to determine speech understanding in neurofibromatosis type II (NF2) patients following implantation of a MED-EL COMBI 40+ auditory brainstem implant (ABI). Patients (n = 32) were enrolled postsurgically. Nonauditory side effects were evaluated at fitting and audiological performance was determined using the Sound Effects Recognition Test (SERT), Monosyllable-Trochee-Polysyllable (MTP) test and open-set sentence tests. Subjective benefits were determined by questionnaire. ABI activation was documented in 27 patients, 2 patients were too ill for testing and 3 patients were without any auditory perception. SERT and MTP outcomes under auditory-only conditions improved significantly between first fitting and 12-month follow-up. Open-set sentence recognition improved from 5% at first fitting to 37% after 12 months. The number of active electrodes had no significant effect on performance. All questionnaire respondents were ‘satisfied' to ‘very satisfied' with their ABI. An ABI is an effective treatment option in NF2 patients with the potential to provide open-set speech recognition and subjective benefits. To our knowledge, the data presented herein is exceptional in terms of the open-set speech perception achieved in NF2 patients.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Auditory Brainstem Implantation Improves Speech Recognition in Neurofibromatosis Type II Patients

Matthies¹,

Brill

Kaga

et al. 2013

ORL

Self Cite

View full text Add to dashboard Cite

show abstract

“…Functional results show great variability; from noise perception only to useful speech discrimination in audiovisual mode in a few patients so far. Since the early trials by Hitselberger and House in 1979, as reported by Edgerton et al 13 and Hit sel berger et al, 21 profound improvements in implant array, technology, and speech processing strategies 65 have brought about useful improvement in functional outcome, 4,8,9,17,23,29,31,32,37,42,43,45,46,48,58,59 but still results remain less favorable than in cochlear implants or auditory brainstem implants (ABIs) in patients without NF2. 8 Visionindependent speech perception is not generally achieved.…”

mentioning

confidence: 99%

Auditory brainstem implants in neurofibromatosis Type 2: is open speech perception feasible?

Matthies¹,

Brill²,

Várallyay

et al. 2014

JNS

Self Cite

View full text Add to dashboard Cite

Object Patients with bilateral auditory nerve destruction may perceive some auditory input with auditory brainstem implants (ABIs). Despite technological developments and trials in new stimulation sites, hearing is very variable and of limited quality. The goal of this study was to identify advantageous and critical factors that influence the quality of auditory function, especially speech perception. Methods The authors conducted a prospective study on ABI operations performed with the aid of multimodality neuromonitoring between 2005 and 2009 in 18 patients with neurofibromatosis Type 2. Outcome was evaluated by testing word recognition (monotrochee-polysyllabic word test at auditory-only mode [MTPa]) and open speech perception (Hochmair-Schulz-Moser [HSM] sentence test), both in pure auditory mode. The primary outcome was the HSM score at 24 months. The predictive meaning of general clinical data, tumor volume, number of active electrodes, duration of deafness, and early hearing data was examined. Results In 16 successful ABI activations the average score for MTPa was 89% (SD 13%), and for HSM it was 41% (SD 32%) at 24 months. There were 2 nonresponders, 1 after radiosurgery and the other in an anatomical variant. Direct facial nerve reconstruction during the same surgery was followed by successful nerve recovery in 2 patients, with a simultaneous very good HSM result. Patients' age, tumor extension, and tumor volume were not negative predictors. There was an inverse relationship between HSM scores and deafness duration; 50% or higher HSM scores were found only in patients with ipsilateral deafness duration up to 24 months. The higher the deafness sum of both sides, the less likely that any HSM score will be achieved (p = 0.034). In patients with total deafness duration of less than 240 months, higher numbers of active electrodes were significantly associated with better outcomes. The strongest cross-correlation was identified between early MTPa score at 3 months and 24-month HSM outcome. Conclusions This study documents that open-set speech recognition in pure auditory mode is feasible in patients with ABIs. Large tumor volumes do not prevent good outcome. Positive preconditions are short ipsilateral and short bilateral deafness periods and high number of auditory electrodes. Early ability in pure auditory word recognition tests indicates long-term capability of open speech perception.

show abstract

Perception and Interactive Technology

Scheller¹,

Petrini²,

Proulx³

2018

Stevens' Handbook of Experimental Psychology and Cognitive Neuroscience

View full text Add to dashboard Cite

“What does it mean, to see?” was the question that David Marr used to motivate his computation approach to understanding Vision (Marr, 1982). Marr's answer, building on Aristotle, was that “vision is the process of discovering from images what is present in the world, and where it is” (p. 3). Although we humans might have a preference for visual perception, we are endowed with other senses that provide us with a rich experience (Chapter 14, this volume). Therefore the broader question might be: What does it mean, to perceive? Although this might be seen as a philosophical question of sorts, it gets to the important issue of how we define perceptual experience scientifically so that we may study it. The importance of defining it is crucial for research applications: If we aim to restore a sense such as vision in blindness or hearing in deafness, what does it mean to see or to hear such that we will know when restoration has been successful? This chapter reviews the interaction between multisensory perception and interactive technological approaches to sensory rehabilitation.

show abstract

An Auditory Brainstem Implant System

Cited by 28 publications

References 2 publications

Auditory Brainstem Implantation Improves Speech Recognition in Neurofibromatosis Type II Patients

Auditory Brainstem Implantation Improves Speech Recognition in Neurofibromatosis Type II Patients

Auditory brainstem implants in neurofibromatosis Type 2: is open speech perception feasible?

Perception and Interactive Technology

Contact Info

Product

Resources

About