Article
Complications and clinical analysis of 673 cochlear implantations
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Published: | April 4, 2012 |
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Outline
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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.