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Multicenter evaluation of Neurelec Digisonic® SP cochlear implant reliability

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Abstract

Over the past decade, the adoption of universal hearing screening in newborns has led to earlier detection of hearing problems and significant lowering of the age of first cochlear implantation. As a consequence, recipients are now expected to keep their cochlear implants (CIs) for a longer period of time. Comprehensive longitudinal information on CI reliability is essential for device choice. The aim of this study was to assess the reliability (in children and adults) of the latest generation of the Digisonic® SP CI launched in 2006 by Neurelec. Failure rate (FR) and cumulative survival rate (CSR) for a 5-year period were calculated. This survey is a multicenter retrospective study. A questionnaire was sent to nine CI centers requesting information about patients implanted with Neurelec Digisonic® SP CIs. FR and CSR over a 5-year period were calculated on this group. Collaborating centers collected data on 672 patients (362 children and 310 adults) implanted between March 2006 and March 2011. The overall rate of explantation was 2.23 % (15 cases): six devices were explanted due to device failure (0.89 %) and nine were explanted for medical reasons (1.34 %). Four patients were lost to follow-up. The CSR at 5 years was 98.51 % on all patients, 98.48 % for children and 98.57 % for adults. FR was 0.97 % for adults and 0.83 % for children. This first independent study that assesses FR and CSR on the current generation of Digisonic® SP CI represents an important resource that can help clinicians and patients during their device choice.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. ENT Department, Rehabilitation Hospital, University of Medicine and Pharmacy “Gr. T. Popa”, 14, Pantelimon Halipa Street, 700661, Iasi, Romania

    Luminiţa Rădulescu & Sebastian Cozma

  2. ENT Department, University Hospital Banacha, Warsaw, Poland

    Casimir Niemczyk

  3. ENT Department, Pasteur Hospital, Nice, France

    Nicolas Guevara & Ivan Gahide

  4. ENT Department, General Children’s Hospital Aghia Sophia, Athens, Greece

    John Economides

  5. ENT Department, Nord Hospital, Marseille, France

    Jean-Pierre Lavieille & Renaud Meller

  6. ENT Department, Pellegrin Hospital, University of Bordeaux, Bordeaux, France

    Jean-Pierre Bébéar

  7. ENT Department, University Hospital Nantes, Nantes, France

    Emilien Radafy & Philippe Bordure

  8. ENT Department, University Hospital Mustafa, Alger, Algeria

    Djamel Djennaoui

  9. ENT Department, Edouard Herriot University Hospital, Hospices Civils de Lyon, Lyon, France

    Eric Truy

  10. INSERM U1028–CNRS UMR5292, Lyon Neuroscience Research Center, Brain Dynamics and Cognition Team, University of Lyon, Lyon, France

    Eric Truy

Authors
  1. Luminiţa Rădulescu
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  2. Sebastian Cozma
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  3. Casimir Niemczyk
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  4. Nicolas Guevara
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  5. Ivan Gahide
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  6. John Economides
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  7. Jean-Pierre Lavieille
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  8. Renaud Meller
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  9. Jean-Pierre Bébéar
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  10. Emilien Radafy
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  11. Philippe Bordure
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  12. Djamel Djennaoui
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  13. Eric Truy
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Correspondence to Luminiţa Rădulescu.

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Rădulescu, L., Cozma, S., Niemczyk, C. et al. Multicenter evaluation of Neurelec Digisonic® SP cochlear implant reliability. Eur Arch Otorhinolaryngol 270, 1507–1512 (2013). https://doi.org/10.1007/s00405-012-2266-2

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  • DOI: https://doi.org/10.1007/s00405-012-2266-2

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