Forces and Trauma Associated with Minimally‐Invasive, Image‐Guided Cochlear Implantation

Abstract

Oral PresentationsP99 simulation sounded more pleasant, natural, and musical when the vocals were removed and when only rhythmic instruments were included (all P values < 0.005).Conclusions: Musical enjoyment with or without CI is influenced by the complexity of the original music. Our study offers preliminary evidence that reduction of music complexity has the potential to make listening more enjoyable for the CI listener. Thus, in addition to improvement in software and hardware, engineering of music specifically for a CI listener may be an alternative means to enhance their listening experience.Objectives: 1) Determine the prevalence of a non-bony or fibrous incudostapedial (IS) joint in the setting of congenital aural atresia. 2) Assess this anomaly's impact on surgical management and associated hearing outcomes.

Damage to inner ear structure during cochlear implantation: Correlation between insertion force and radio-histological findings in temporal bone specimens

“…In these studies, the forces applied were perpendicular to the basilar membrane; this situation was not comparable with the force applied during electrode array insertion as the vector of the force may differ (Roland, 2005). A measure of the forces during CI insertion have been made by Rohani et al (2014) who studied the insertion profile of three different electrodes in six fresh temporal bones. In that study, the array was inserted through a tunnel drilled in the mastoid with a preimplantation planned linear trajectory without performing a mastoidectomy, and incomplete insertions of Med El Standard arrays were obtained.…”

The impact of round window vs cochleostomy surgical approaches on interscalar excursions in the cochlea: Preliminary results from a flat‐panel computed tomography study

“…surgical approaches to reduce surgically-induced trauma has been growing exponentially each year: recent studies are finding roles for image-guided CI insertions, 13 biocompatible polymer-coated electrode arrays, 14 and new atraumatic electrode designs. While these new surgical tools and options in device design are relatively elective to the operation, insertion of the electrode array is arguably the most important step in this surgical operation.…”

Investigating variability in cochlear implant electrode array alignment and the potential of visualization guidance

“…Regardless of EA type, one of the critical factors in residual hearing preservation and good outcomes is atraumatic insertion with the EA residing fully in the ST . However, scalar crossing into the scala vestibuli (SV) and other intracochlear trauma may occur with forces at or below the limit of force perception by hand . In addition, placement of the EA close to the modiolar wall has been shown to reduce excitation thresholds and lead to better hearing outcomes .…”