gms | German Medical Science

83rd Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

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

16.05. - 20.05.2012, Mainz

Complications and clinical analysis of 673 cochlear implantations

Meeting Abstract

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  • Jianhua Qiu - Xijing Hospital, The Fourth Military Medical Unive, Xi’an, P.R. China

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 83. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Mainz, 16.-20.05.2012. Düsseldorf: German Medical Science GMS Publishing House; 2012. Doc12hnod503

doi: 10.3205/12hnod503, urn:nbn:de:0183-12hnod5039

Published: April 4, 2012

© 2012 Qiu.
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=673) who received cochlear implants in our department between 2000 and 2011 were followed up (range, 6 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 33 complications (4.9%). The minor were 26 cases (3.9%), including postoperative subcutaneous hematoma in 14 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 6 cases. The major were 7 cases (1.1%), including cerebrospinal fluid leakage in 2 cases, implant-related infection and extrusion in 2 cases, 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.