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Review of electrode placement with the Slim Modiolar Electrode: identification and management.
Dimak, Balazs; Nagy, Roland; Perenyi, Adam; Jarabin, Janos Andras; Schulcz, Rebeka; Csanady, Miklos; Jori, Jozsef; Rovo, Laszlo; Kiss, Jozsef Geza.
Afiliación
  • Dimak B; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Nagy R; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Perenyi A; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Jarabin JA; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Schulcz R; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Csanady M; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Jori J; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Rovo L; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
  • Kiss JG; University of Szeged, Department of Oto-Rhino- Laryngology, Head and Neck Surgery, Szeged.
Ideggyogy Sz ; 73(1-2): 53-59, 2020 Jan 30.
Article en En | MEDLINE | ID: mdl-32057205
Background - Several cochlear implant recipients experience functionality loss due to electrode array mal-positioning. The application of delicate perimodiolar electrodes has many electrophysiological advantages, however, these profiles may be more susceptible to tip fold-over. Purpose - The prompt realization of such complication following electrode insertion would be auspicious, thus the electrode could be possibly repositioned during the same surgical procedure. Methods - The authors present three tip fold-over cases, experienced throughout their work with Slim Modiolar Electrode implants. Implantations were performed through the round window approach, by a skilled surgeon. Standard intraoperative measurements (electric integrity, neural response telemetry, and electrical stapedial reflex threshold tests) were successfully completed. The electrode position was controlled by conventional radiography on the first postoperative day. Results - Tip fold-over was not tactilely sensated by the surgeon. Our subjects revealed normal intraoperative telemetry measurements, only the postoperative imaging showed the tip fold-over. Due to the emerging adverse perception of constant beeping noise, the device was replaced by a CI512 implant after 6 months in one case. In the two remaining cases, the electrode array was reloaded into a back-up sheath, and reinserted into the scala tympani successfully through an extended round window approach. Discussion - Future additional studies using the spread of excitation or electric field imaging may improve test reliability. As all of these measurements are still carried out following electrode insertion, real-time identification, unfortunately, remains questionable. Conclusion - Tip fold-over could be reliably identified by conventional X-ray imaging. By contrast, intraoperative electrophysiology was not sufficiently sensitive to reveal it.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Implantes Cocleares / Implantación Coclear / Electrodos Implantados Tipo de estudio: Diagnostic_studies / Prognostic_studies Límite: Humans Idioma: En Revista: Ideggyogy Sz Año: 2020 Tipo del documento: Article Pais de publicación: Hungria
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Implantes Cocleares / Implantación Coclear / Electrodos Implantados Tipo de estudio: Diagnostic_studies / Prognostic_studies Límite: Humans Idioma: En Revista: Ideggyogy Sz Año: 2020 Tipo del documento: Article Pais de publicación: Hungria