Citation

Keereweer S, Van der Schroeff MP, Pullens B. Ann. Otol. Rhinol. Laryngol. 2014; 123(4): 229-231.

Affiliation

Department of Otorhinolaryngology, Sophia Children's Hospital, Erasmus Medical Centre, Rotterdam, the Netherlands.

Copyright

(Copyright © 2014, Annals Publishing)

DOI

10.1177/0003489414525922

PMID

24671476

Abstract

OBJECTIVES: To date, over 200 000 cochlear implants (CIs) have been implanted worldwide and the incidence is still increasing. We present a case of traumatic displacement of CI magnet to raise awareness about this complication and to highlight the need for vigilance during surgery as well as for proper counseling.

METHODS: The clinical presentation of a 1.5-year-old boy with a traumatic displacement of a CI magnet was presented and the literature was reviewed for this rare complication.

RESULTS: After minor head injury, the sound processor could no longer connect to the CI. X-ray imaging demonstrated displacement of the CI magnet. During revision surgery, the magnet was replaced by a new magnet in the silicon holding cap. Intraoperative impedance measurements were normal and the CI was successfully activated 4 weeks postoperatively.

CONCLUSIONS: Clinicians and patients should be aware of the risk of displacement of the CI magnet after (minor) head injury. Young boys tend to have a higher risk for this complication.

Language: en