Download 13th International Conference on Cochlear Implants and Other

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Surgical challenges during electrode insertion in cochlear implants
Skarzynski H. , Mrowka M. , Porowski M.
Institute of Physiology and Pathology of Hearing, World Hearing Center, Warsaw, Poland
Introduction: Treatment of patients with profound hearing loss can be conducted using cochlear Implant. Due to
anatomical variability and congenital malformations in the inner ear, sometimes insertion of CI electrode may
present problems.
Aim: Our aim was to assess the effects of application of different surgical techniques in implantation
(cochleostomy, round window) affecting postoperative results.
Material and method: Our method of choice in treatment of severe hearing impairments in presented cases was
cochlear Implantation. We have used various cochlear implants types, with various electrodes. We selected
implants and electrodes appropriately to the type of hearing loss and the type of defects the inner ear anatomy.
Our material consists of patients with various inner ear malformations (incomplete partition, Mondini syndrome,
common cavity, LVAS), often accompanied by intraoperative gusher.
Results: The results of the surgical procedure are shown in computed tomography imaging studies. Authors
discuss the results of audiological after implantation and complications.
Conclusions: Assessment of the effects of different surgical techniques application in cochlear implants in
congenital inner ear malformations indicated that the best result of implantations gives the round window
technique of electrode insertion. Audiological results are good, but not as good as in patients with normal