gms | German Medical Science

79. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

30.04. - 04.05.2008, Bonn

Long term-results of adult cochlear implant patients: Hannover experience

Meeting Abstract

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. 79th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. Bonn, 30.04.-04.05.2008. Düsseldorf, Köln: German Medical Science; 2008. Doc08hno16

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Veröffentlicht: 8. Juli 2008

© 2008 Rost et al.
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Introduction: Cochlear implants have been implanted in adult deaf patients at Hanover Medical University (Germany) since 1984. The speech perception performance was assessed at regular intervals, using speech perception tests, and will be presented for patients implanted between 1984 and 2004.

Methods: Out of more than 2600 patients a homogeneous group of 864 patients was selected and divided into 5 subgroups depending on the time of implantation and implant-type.

Only patients who received a standard monaural device, were at least 18 years of age at the time of surgery and whose native language is German were selected.

Results: The demographic data across patients indicate many shifts in the types of patients selected for a cochlear implant from subgroup 1 to 5. For later subgroups, the number of progressively and postlingually deaf adults as well as those with hearing aid experience increased and the average of the age of deafness was later. The average of the duration of deafness and the age of implantation also decreased.

Considering the development of speech perception performance, the speech perception results indicate a substantial improvement in performance from subgroup 1 to 5.

Conclusions: Based on our findings, the improvement in speech perception performance across the 5 subgroups appears to be related to the selection criteria for cochlear implant patients. The progress in cochlear implant technologies, surgical procedures and rehabilitation methods also appear to effect performance too. With further progress we may expect further improvements in speech perception performance for cochlear implant patients.