Stable long-term outcomes after cochlear implantation in subjects with TMPRSS3 associated hearing loss: a retrospective multicentre study.
Background: The spiral ganglion hypothesis suggests that pathogenic variants in genes preferentially expressed in the spiral ganglion nerves (SGN), may lead to poor cochlear implant (CI) performance. It was long thought that TMPRSS3 was particularly expressed in the SGNs. However, this is not in lin...
| Publicado en: | Journal of Otolaryngology -- Head & Neck Surgery Vol. 52; no. 1; pp. 1 - 17 |
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| Autores principales: | , , , , , , , , , , , , , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
12/15/2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=174268545&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 174268545 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 07077270 8B4Q jtl: Journal of Otolaryngology -- Head & Neck Surgery issn: 07077270 maglogo: N pubinfo: dt: 12/15/2023 vid: 52 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 174268545 174268545 174268545 10.1186/s40463-023-00680-3 174268545 ppf: 1 ppct: 16 formats: tig: atl: Stable long-term outcomes after cochlear implantation in subjects with TMPRSS3 associated hearing loss: a retrospective multicentre study. aug: au: Fehrmann, M. L. A. Huinck, W. J. Thijssen, M. E. G. Haer-Wigman, L. Yntema, H. G. Rotteveel, L. J. C. Widdershoven, J. C. C. Goderie, T. van Dooren, M. F. Hoefsloot, E. H. van der Schroeff, M. P. Mylanus, E. A. M. Kant, S. G. de Gier, H. H. W. Ropers, F. G. Kriek, M. Aten, E. Hof, J. R. Hellingman, K. Vernimmen, V. affil: https://ror.org/05wg1m734 Department of Otorhinolaryngology, Radboudumc, Nijmegen, The Netherlands sug: subj: Hearing Loss, Sensorineural Surgery Cochlear Implant Treatment Outcomes Gene Expression Membrane Proteins Metabolism Speech Perception Ganglia, Sensory Human Retrospective Design Multicenter Studies Netherlands Genotype Phonetics Age Factors Descriptive Statistics Funding Source ab: Background: The spiral ganglion hypothesis suggests that pathogenic variants in genes preferentially expressed in the spiral ganglion nerves (SGN), may lead to poor cochlear implant (CI) performance. It was long thought that TMPRSS3 was particularly expressed in the SGNs. However, this is not in line with recent reviews evaluating CI performance in subjects with TMPRSS3-associated sensorineural hearing loss (SNHL) reporting overall beneficial outcomes. These outcomes are, however, based on variable follow-up times of, in general, 1 year or less. Therefore, we aimed to 1. evaluate long-term outcomes after CI implantation of speech recognition in quiet in subjects with TMPRSS3-associated SNHL, and 2. test the spiral ganglion hypothesis using the TMPRSS3-group. Methods: This retrospective, multicentre study evaluated long-term CI performance in a Dutch population with TMPRSS3-associated SNHL. The phoneme scores at 70 dB with CI in the TMPRSS3-group were compared to a control group of fully genotyped cochlear implant users with post-lingual SNHL without genes affecting the SGN, or severe anatomical inner ear malformations. CI-recipients with a phoneme score ≤ 70% at least 1-year post-implantation were considered poor performers and were evaluated in more detail. Results: The TMPRSS3 group consisted of 29 subjects (N = 33 ears), and the control group of 62 subjects (N = 67 ears). For the TMPRSS3-group, we found an average phoneme score of 89% after 5 years, which remained stable up to 10 years post-implantation. At both 5 and 10-year follow-up, no difference was found in speech recognition in quiet between both groups (p = 0.830 and p = 0.987, respectively). Despite these overall adequate CI outcomes, six CI recipients had a phoneme score of ≤ 70% and were considered poor performers. The latter was observed in subjects with residual hearing post-implantation or older age at implantation. Conclusion: Subjects with TMPRSS3-associated SNHL have adequate and stable long-term outcomes after cochlear implantation, equal to the performance of genotyped patient with affected genes not expressed in the SGN. These findings are not in line with the spiral ganglion hypothesis. However, more recent studies showed that TMPRSS3 is mainly expressed in the hair cells with only limited SGN expression. Therefore, we cannot confirm nor refute the spiral ganglion hypothesis. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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