gms | German Medical Science

82nd Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

01.06. - 05.06.2011, Freiburg

Complications and clinical analysis of cochlear implantation

Meeting Abstract

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  • corresponding author Jianhua Qui - Xijing Hospital, Dept. ORL, HNS, Xi'an, Shanxi, Volksrepublik China

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 82. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Freiburg i. Br., 01.-05.06.2011. Düsseldorf: German Medical Science GMS Publishing House; 2011. Doc11hnod442

doi: 10.3205/11hnod442, urn:nbn:de:0183-11hnod4426

Published: April 19, 2011

© 2011 Qui.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.



Objectives: To investigate complications of cochlear implantation for prevention and therapy.

Study Design: Retrospective study at a tertiary referral center.

Methods: The patients (n=416) who received cochlear implants in our department between 2000 and 2010 were followed up (range, 3 months to 10 years). The complications were identified as “minor” or “major”. All complications were systematically reviewed, and their causes were analyzed for prevention and therapy.

Results: There were a total of 29 complications (7%). The minor were 23 cases (5.5%), including postoperative subcutaneous hematoma in 13 cases, acute otitis media in 2 cases, postoperative wound infection in 2 cases, delayed facial paralysis in 1 case, clonic facial spasm in 1 case, and severe dizziness in 4 cases. The major were 6 cases (1.5%), including cerebrospinal fluid leakage in 2 cases, implant-related infection and extrusion in 1 case, tympanic membrane perforation induced electrode exposed in 1 case, implantation failure due to cochlear ossification in 1 case, and magnet displacement in 1 case.

Conclusions: Cochlear implantation is a safe and reliable operation; but it is still a serious problem to lower the incidence of complications.