The effects of insertion speed on inner ear function during cochlear implantation: A comparison study

Gunesh P. Rajan, Georgios Kontorinis, Jafri Kuthubutheen

    Research output: Contribution to journalArticle

    55 Citations (Scopus)

    Abstract

    Objective: To investigate the insertion speed and its impact on electrode insertion characteristics, hearing preservation and clinical vestibular function in a prospective cohort study with a retrospective control group at a tertiary otology/neurotology centre. Interventions: Hearing-preserving cochlear implantation using systemic and topical steroids in conjunction with a round-window approach, a complete cochlear coverage electrode and two different electrode insertion speeds [60 mm/min (n = 18) vs. 15 mm/min (n = 22)] was performed. Results: The insertion speed had a significant impact on various insertion characteristics as well as hearing preservation and vestibular function. In conclusion, a slow electrode insertion speed appears to facilitate full electrode insertion, reduce the occurrence of insertion resistance as well as promote preservation of residual hearing and vestibular function after cochlear implantation.

    Original languageEnglish
    Pages (from-to)17-22
    Number of pages6
    JournalAudiology and Neurotology
    Volume18
    Issue number1
    DOIs
    Publication statusPublished - Dec 2012

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