CC BY-NC-ND 4.0 · Laryngorhinootologie 2021; 100(S 02): S201
DOI: 10.1055/s-0041-1728373
Abstracts
Otology / Neurotology / Audiology

Cochlear implant revisions: Causes and implications

T Hussain
1   HNO-Klinik der Universität Essen, Essen
,
S Hans
1   HNO-Klinik der Universität Essen, Essen
,
L Holtmann
1   HNO-Klinik der Universität Essen, Essen
,
B Höing
1   HNO-Klinik der Universität Essen, Essen
,
S Lang
1   HNO-Klinik der Universität Essen, Essen
,
D Arweiler-Harbeck
1   HNO-Klinik der Universität Essen, Essen
› Author Affiliations
 

Over the past 10 years, 30,000 patients underwent cochlear implantion in Germany and yearly rates are increasing. Correspondingly, the frequency of revision cochlear implant surgeries is on the rise. In this study, we analyzed characteristics of revision cochlear implant surgeries, including explantation surgeries and same time reimplantations.

519 patients underwent cochlear implantation at our institution between 2014 and 2018 (77.9 %  adults and 22.1 %  children). During this period, we performed 55 revision surgeries: 27 cochlear explantations without same time reimplantation and 28 revisions with same time reimplantation. We analyzed causes of revision surgeries, irrespective of the time of initial implantation and excluded magnet revision surgeries.

Infections were the most common cause for cochlear explantation surgery (37.0 %  of explantations, n=10/27). 8/10 of these patients had reimplantation surgery at a secondary time point. Reasons for definitive explantation surgery were chronic pain (25.9 %  of explantation surgeries, n=7/27) and poor hearing outcome (25.9 %  of explantation surgeries, n=7/27). Technical implant failure was the most common cause of revision and immediate reimplantation surgery (64.2 %  of reimplantations, n=18/28). The average time between primary implantation and the occurrence of implant failure leading to reimplantation surgery was 148.3 months.

Increasing cochlear implantation rates and a long latency between implant failure and revision surgery are likely to lead to a further increase in cochlear revision surgeries. Most revision surgeries involve a same time reimplantation. Chronic pain and poor hearing outcome are the main causes for definitive explantation and should be taken into consideration during therapy planning and patient counseling.

Poster-PDF A-1292.pdf



Publication History

Article published online:
13 May 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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