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Self-Reported Benefit, Sound Perception, and Quality-of-Life in Patients with Auditory Brainstem Implants (ABIs)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Otolaryngology and Head and Neck Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Otolaryngology and Head and Neck Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Otolaryngology and Head and Neck Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Otolaryngology and Head and Neck Surgery.
2016 (English)In: Acta Oto-Laryngologica, ISSN 0001-6489, E-ISSN 1651-2251, Vol. 136, no 1, 62-67 p.Article in journal (Refereed) Published
Abstract [en]

CONCLUSION:

The majority of the patients used their auditory brainstem implants (ABIs) all the time, reporting that he/she would make the decision to receive an implant again if the decision were reconsidered. The findings support that the ABI is a valuable treatment in patients with type 2 neurofibromatosis (NF2) and in children with congenital inner ear and nerve anomalies or cochlear ossification.

OBJECTIVE:

To evaluate the patients who underwent ABI implantation in Uppsala during 1993-2013. This study analyzed patients' implant use, perception of environmental sounds, perceived benefit from the implant, and quality-of-life (QoL).

METHOD:

The NF2-patients (n = 20) comprised the majority of the patients, and there were a few non-NF2 pediatric patients (n = 4). The exclusion criteria included deceased patients (n = 4) and patients with no hearing sensations from the implant, or those with an inactivated ABI (n = 2). The data were collected from a questionnaire survey.

RESULTS:

Eleven adult patients and two pediatric patients answered the questionnaires. Eight of the adult patients used their implants 'always'. The two children always used their implants. Hearing problems had the largest negative effect on the QoL. The non-users and the users scored equally on the NFTI-QoL.

Place, publisher, year, edition, pages
2016. Vol. 136, no 1, 62-67 p.
Keyword [en]
Auditory brainstem implants; QoL; benefit; NF2
National Category
Otorhinolaryngology
Identifiers
URN: urn:nbn:se:uu:diva-265777DOI: 10.3109/00016489.2015.1079925ISI: 000365678800011PubMedID: 26426855OAI: oai:DiVA.org:uu-265777DiVA: diva2:866547
Available from: 2015-11-03 Created: 2015-11-03 Last updated: 2017-12-01Bibliographically approved
In thesis
1. Experiences from Cochlear Implantation and Auditory Brainstem Implantation in Adults and Children: Electrophysiological Measurements, Hearing Outcomes and Patient Satisfaction
Open this publication in new window or tab >>Experiences from Cochlear Implantation and Auditory Brainstem Implantation in Adults and Children: Electrophysiological Measurements, Hearing Outcomes and Patient Satisfaction
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Cochlear implants (CIs) and auditory brainstem implants (ABIs) are prostheses for hearing used in patients with profound hearing impairment. A CI requires an operational cochlear nerve to function in contrast to an ABI. ABIs were initially designed for adult patients with neurofibromatosis type 2 (NF2), suffering from bilateral vestibular schwannomas. Now ABIs are also used for patients, both adults and children, with congenital cochlear malformations, cochlear nerve hypoplasia/aplasia, and cochlear ossification. The aims of this thesis are to evaluate hearing outcome in patients implanted with a CI after long-term deafness. An extended period of deafness has earlier been considered as a contraindication for CI surgery. Further, we analyzed if electrically evoked auditory brainstem responses (eABRs) can predict CI outcome and pinpoint the optimal selection of treatment such as CI or ABI. We also disclose our experiences from ABI surgery in Uppsala, such as implant use, hearing outcome, complications, and satisfaction among the patients. Finally, we evaluated the results and benefits of ABIs in non-NF2 pediatric patients.

Results show that patients with an extended deafness period and durations over 20 years can achieve speech understanding and benefit from CIs. Patients with long-term deafness and limited years of hearing before deafness did not perform as well as those with shorter deafness duration and longer hearing experience did. eABR seems to have a definite role in the diagnostic armamentarium, to better consider alternative surgical strategies such as ABI. No eABR waveform predicted a poor CI outcome. There was no correlation between speech perception and eABR waveform latencies or eABR waveform quality. A majority of the ABI patients used their ABIs and benefited from them for at least some period. ABI assisted voice control in a majority of the full-time users and they reported improved understanding of speech with the implant switched on. No severe complications from ABI surgery or ABI stimulation were noted. The patients were generally satisfied, even if their hearing remained very limited. All pediatric patients but one used the implant continuously and benefited from it.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2016. 104 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1183
Keyword
cochlear implant, auditory brainstem implant, electrically evoked auditory brainstem responses, long deafness duration, neurofibromatosis type 2
National Category
Medical and Health Sciences
Research subject
Medical Science
Identifiers
urn:nbn:se:uu:diva-275091 (URN)978-91-554-9483-4 (ISBN)
Public defence
2016-04-15, Skoogsalen, ingång 78/79, Akademiska sjukhuset, Uppsala, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2016-03-22 Created: 2016-01-29 Last updated: 2016-04-05

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Lundin, KarinStillesjö, FredrikNyberg, GunnarRask-Andersen, Helge

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