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Updated: May 29, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
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Foreign body reaction after cochlear implantation.

Hye Jin Lim1, Eun-So Lee, Hun Yi Park

  • 1Department of Otolaryngology, Ajou University School of Medicine, San 5, Wonchon-dong, Yeongtong-gu, Suwon 443-721, Republic of Korea.

International Journal of Pediatric Otorhinolaryngology
|September 2, 2011
PubMed
Summary

Foreign body reaction is a rare complication after cochlear implantation. Device removal successfully treated this rare complication, which can mimic wound infections.

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Biomaterials Science

Background:

  • Cochlear implantation effectively treats severe to profound sensorineuronal hearing loss.
  • While generally safe, potential complications necessitate revision surgeries.
  • Foreign body reaction is an uncommon but significant complication.

Observation:

  • A case of foreign body reaction following cochlear implantation was observed.
  • Symptoms mimicked recurrent wound infection or delayed device extrusion.
  • The reaction was successfully treated by removing the cochlear implant device.

Findings:

  • Foreign body reaction presents a diagnostic challenge in post-cochlear implantation cases.
  • Prompt identification and intervention are crucial for managing this complication.

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  • Device removal is a viable treatment option for foreign body reactions.

    • Implications:

    • Clinicians should consider foreign body reaction in patients with persistent or unusual symptoms post-implantation.
    • Further research into biomaterial interactions may help prevent such reactions.
    • Understanding rare complications improves patient outcomes and implant efficacy.