Long-Term Impedance Trend in Cochlear Implant Users with Genetically Determined Congenital Profound Hearing Loss.
Background Impedance is a basic parameter registered at any cochlear implant (CI) fitting section. It is useful in monitoring electrode functioning and the status of the surrounding anatomical structures. Purpose The main aim of this study is to evaluate the 5-year impedance-value trend in patient...
| Published in: | Journal of the American Academy of Audiology Vol. 33; no. 2; pp. 105 - 115 |
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| Main Authors: | , , , , , , , , |
| Format: | research tables/charts Journal Article |
| Published: |
Thieme Medical Publishing Inc.
2022
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=158859659&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 158859659 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10500545 9OC jtl: Journal of the American Academy of Audiology issn: 10500545 maglogo: Y pubinfo: dt: 2022 vid: 33 iid: 2 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 158859659 158859659 158859659 10.1055/s-0041-1739290 158859659 ppf: 105 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Long-Term Impedance Trend in Cochlear Implant Users with Genetically Determined Congenital Profound Hearing Loss. aug: au: Brotto, Davide Caserta, Ezio Sorrentino, Flavia Favaretto, Niccolò Marioni, Gino Martini, Alessandro Bovo, Roberto Gheller, Flavia Trevisi, Patrizia affil: Section of Otorhinolaryngology - Head and Neck Surgery, Department of Neurosciences, University of Padova, Padova, Italy sug: subj: Hearing Disorders Familial and Genetic Hearing Disorders Surgery Cochlear Implant Electric Impedance Trends Time Factors Human Male Female Child, Preschool Child Adolescence Adult Italy Nonexperimental Studies Retrospective Design Record Review Repeated Measures Analysis of Variance Data Analysis Software Post Hoc Analysis Paired T-Tests Cochlear Implant Programming Electrodes, Implanted Classification Telemetry Evoked Potentials, Auditory Child, Preschool: 2-5 years Child: 6-12 years Adolescent: 13-18 years Adult: 19-44 years Male Female ab: Background Impedance is a basic parameter registered at any cochlear implant (CI) fitting section. It is useful in monitoring electrode functioning and the status of the surrounding anatomical structures. Purpose The main aim of this study is to evaluate the 5-year impedance-value trend in patients affected by congenital genetically determined profound hearing loss implanted with Cochlear Nucleus devices. Research Design Observational, retrospective, monocentric study. Study Sample Twenty-seven consecutive patients (9 females: 12.0 ± 7.6 years old; range: 4.2–40.4) with genetic diagnosis of GJB2 mutation causing congenital profound hearing loss who underwent cochlear implantation from 2010 to 2020 with good auditory benefit. Intervention Impedance values of the CIs were obtained from the CIs' programming software that registers those parameters for each follow-up section of each patient. Data Collection and Analysis Impedance values were measured over time (activation, 6, 12, 24, and 60 months after cochlear implantation), for each of the 22 electrodes, in common ground, monopolar 1, monopolar 2, and monopolar 1 + 2 stimulation modes. Results A significant variation was found between CI activation and 6-month follow-up. This difference was found for each of the 22 electrodes. Electrodes 1 to 4 showed higher impedance values compared with all other electrodes in each time interval. Repeated-measures analysis of variance ruled out significant variations in impedance values from 6-month to 5-year follow-up. Conclusions Impedance values were extremely stable after activation, at least for the first 5 years. In these cases, even minimal impedance variations should be carefully evaluated for their possible implications on hearing performance. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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