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Dislocation of cochlear implant magnet during 1.5 Tesla magnetic resonance imaging despite head bandaging, and its repositioning using an endoscopic approach

  • W J C Leong (a1) and H W Yuen (a1)

Abstract

Background

Dislocation of the cochlear implant magnet is an uncommon but recognised complication of magnetic resonance imaging in a patient with a cochlear implant.

Case report

This paper reports a case of cochlear implant magnet dislocation despite head bandaging. The patient subsequently underwent endoscopic repositioning of the magnet under general anaesthesia. The cochlear implant system was tested intra-operatively and confirmed to be functioning. The patient was well at follow up and the small wound healed well with no complications.

Conclusion

This report presents the endoscopic technique as a viable minimally invasive surgical approach to address cochlear implant magnet dislocation.

Copyright

Corresponding author

Author for correspondence: Dr Wen Jun Clement Leong, Department of Otolaryngology – Head and Neck Surgery, Changi General Hospital, Singapore E-mail: lwjclement@gmail.com

Footnotes

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Dr W J C Leong takes responsibility for the integrity of the content of the paper

Footnotes

References

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2Turchetti, G, Belelli, S, Palla, I, Berrettini, S. Systematic review of the scientific literature on the economic evaluation of cochlear implants in adult patients. Acta Otorhinolaringol Ital 2011;31:319–27
3Cohen, NL, Hofman, RA. Complications of cochlear implant surgery in adults and children. Ann Otol Rhinol Laryngol 1991;100:708–11
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5Hassepass, F, Stabenau, V, Arndt, S, Beck, R, Bulla, S, Grauvogel, T et al. Magnet dislocation: an increasing and serious complication following MRI in patients with cochlear implants. Rofo 2014;186:680 – 5
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8Cuda, D, Murri, A, Succo, G. Focused tight dressing does not prevent cochlear implant magnet migration under 1.5 Tesla MRI. Acta Otorhinolaringol Ital 2013;33:133–6
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11Hu, X, Ma, H, Xue, Z, Qi, H, Chen, B. Endoscopic facelift of the frontal and temporal areas in multiple planes. Singapore Med J 2017;58:107–10
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The Journal of Laryngology & Otology
  • ISSN: 0022-2151
  • EISSN: 1748-5460
  • URL: /core/journals/journal-of-laryngology-and-otology
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