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HiFocus Helix™ electrode insertion: surgical approach.

AbstractBACKGROUND:
Cochlear implants have been used for almost 30 years as a device for the rehabilitation of individuals with severe-to-profound hearing loss. One of the important aspects of cochlear implantation is the type of electrode selected and proper insertion of the electrode array in scala tympani to minimize cochlear damage. The HiFocus Helix™ electrode is a precurved design aimed at placing the electrode contacts close to the spiral ganglion cells in the modiolus. The prescribed insertion techniques are intended to minimize the likelihood of damage to the basilar membrane or lateral wall of the cochlea.
CASE PRESENTATION:
To describe the first insertion of a HiFocus Helix™ electrode in Brazil exposing surgical particularities and device details in a patient with profound hearing loss, due to Mondini's dysplasia.
CONCLUSION:
No problems were encountered during the surgical procedure. The patient experienced improvement in hearing thresholds and speech perception. The HiFocus Helix™ electrode proved easy to insert and provided expected hearing benefits for the patient. This manuscript indicates that the HiResolution™ Bionic Ear System with HiFocus Helix™ electrode comprise a cochlear implant system that is practical and beneficial for the treatment of severe-to-profound hearing loss.
AuthorsArthur Menino Castilho, Henrique Furlan Pauna, Fernando Laffitte Fernandes, Rodrigo Gonzales Bonhin, Alexandre Caixeta Guimarães, Tatiana Mendes de Melo, Margareth Cheng, Edi Lucia Sartorato, Guilherme Machado de Carvalho, Jorge Rizzato Paschoal
JournalBMC research notes (BMC Res Notes) Vol. 8 Pg. 304 (Jul 15 2015) ISSN: 1756-0500 [Electronic] England
PMID26174835 (Publication Type: Case Reports, Journal Article)
Topics
  • Adolescent
  • Basilar Membrane (pathology)
  • Cochlea (surgery)
  • Cochlear Implantation (instrumentation, methods)
  • Cochlear Implants
  • Electrodes
  • Female
  • Hearing Loss (rehabilitation)
  • Hearing Loss, Sensorineural (surgery)
  • Humans
  • Magnetic Resonance Imaging
  • Scala Tympani (surgery)
  • Speech Perception
  • Spiral Ganglion
  • Tomography, X-Ray Computed

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