Cochlear re-implant rates in children: 20 years experience in a quaternary paediatric cochlear implant centre

Marilena Trozzi, Harry R F Powell, Shamim Toma, Waseem Ahmed, Christopher G. Jephson, Kaukab Rajput, Lesley A. Cochrane

Research output: Contribution to journalArticle


The aim of this study is to determine the incidence and causes for cochlear explantation/re-implantation in children as a retrospective case review in a Quaternary paediatric Cochlear Implant (CI) Centre. The subjects included in the study were Paediatric CI patients requiring cochlear explantation/re-implantation. Outcome measurements were incidence and aetiology of device explantation/re-implantation. Patient age at implantation, aetiology of deafness, CI manufacturer, and timing of explantation/re P implantation were the independent variables. 778 paediatric cochlear implants were performed in 653 children between 1992 and January 2013. There were a total of 40 (5.1 %) failed implants in 38 patients. The most common reason for explantation was device failure in 22 (2.8 %). Risk factors for device failure were known manufacturing defect/device recall. Medical/surgical issues accounted for 18 (2.3 %) implant failures. The mean time to explantation was 3 years 10 months. The incidence of explantation/re-implantation in our paediatric cochlear implant population is comparable to other published studies. The most common reason for explantation was device failure, however, the aetiology of deafness, in particular meningitis, does not appear to increase the risk of explantation as described in previous series.

Original languageEnglish
Pages (from-to)2667-2672
Number of pages6
JournalEuropean Archives of Oto-Rhino-Laryngology
Issue number10
Publication statusPublished - Aug 9 2014



  • Children
  • Cochlear implant
  • Complications
  • Explantation
  • Re-implantation
  • Surgery

ASJC Scopus subject areas

  • Otorhinolaryngology

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