cochlear-implantation-first-experience-with-x-ray-guided-anatomy

Cochlear Implantation: First Experience with X-Ray Guided Anatomy-Based Fitting

This study presents a protocol for applying X-ray-guided anatomy-based fitting (ABF) in cochlear implant (CI) programming to reduce frequency-to-place ...

MED-EL GmbH

The objective-based methods for intraoperative monitoring have been suggested to assess the coupling and the outcomes of Vibrant Soundbridge (VSB). Although several techniques were proposed, they have not been widely adopted due to their complexity and invasiveness.

A novel coupling quality index to estimate the coupling efficiency in Vibrant Soundbridge.

Anatomy-based fitting (ABF) is a new research area in the field of cochlear implants (CIs). Despite the reported benefits and acceptable levels of ABF among CI recipients, some limitations remain, like the postoperative computed tomography (CT) scan, which is preferred for confirming electrode array insertion.

Advancing Cochlear Implant Programming: X-ray Guided Anatomy-Based Fitting.

: The growing adoption of cochlear implants (CIs) necessitates understanding the factors influencing long-term performance and improved outcomes. This work investigated the long-term effect of early activation of CIs on electrode impedance in a large sample of CI users at different time points. : A retrospective study on 915 ears from CI patients who were implanted between 2015 and 2020. According to their CI audio processor activation time, the patients were categorized into early activation (activated 1 day after surgery, n = 481) and classical activation (activated 4 weeks after surgery, n = 434) groups. Then, the impact of the activation times on the electrode impedance values, along the electrode array contacts, at different time points up to two years was studied and analyzed. : The early activation group demonstrated lower impedance values across all the electrode array sections compared to the classical activation at 1 month, 1 year, and 2 years post-implantation. At 1 month, early activation was associated with a reduction of 0.34 kΩ, 0.46 kΩ, and 0.37 kΩ in the apical, middle, and basal sections, respectively. These differences persisted at subsequent intervals. : Early activation leads to sustained reductions in the electrode impedance compared to classical activation (CA), suggesting that earlier activation might positively affect long-term CI outcomes.

Cochlear Implantation: Long-Term Effect of Early Activation on Electrode Impedance.

(1) Background: Cochlear implants (CIs) are widely applied to recover audition for patients with severe degrees of or total hearing loss. Electrical stimulation using the electrically evoked ABR (E-ABR) can be recorded in CI recipients through the device. This work was designed to study E-ABR recorded individually from different channels located at the apical, middle, and basal cochlear regions in comparison to their simultaneous separated or adjacent combined recordings. (2) Methods: This study included 17 children fitted with unilateral cochlear implants. All children were subjected to impedance measurement, electrical compound action potentials (ECAP), and E-ABR recording of three channels located at the apical, middle, and basal cochlear regions. This was followed by simultaneous E-ABR recording of the three "separated" channels in comparison to E-ABR recording from three adjacent channels located at the middle cochlear region. (3) Results: Similar E-ABR latencies and amplitudes were found using either individual or simultaneously separated or adjacent combined recording. However, the mean amplitude measures of E-ABR for combined adjacent channels showed a positive correlation with the applied current level. (4) Conclusions: Combined E-ABR recording from adjacent channels is a faster and more reliable technique that can be used effectively without compromising the results of the recorded E-ABR.

Electric Auditory Brainstem Response Audiometry in Cochlear Implants: New Recording Paradigm.

Anatomy-based fitting (ABF) for cochlear implant users is a new era that seeks improved outcomes. Recently, different imaging modalities, such as plain X-rays, have been proposed to build the ABF as an alternative to the computed tomography (CT) scan. This study aimed to assess the feasibility and validity of OTOPLAN® software in building ABF using plain X-ray imaging.

Article	Year
A novel coupling quality index to estimate the coupling efficiency in Vibrant Soundbridge. European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery\| PubMed ID: 38070046	2024
Advancing Cochlear Implant Programming: X-ray Guided Anatomy-Based Fitting. Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology\| PubMed ID: 38206059	2024
Cochlear Implantation: Long-Term Effect of Early Activation on Electrode Impedance. Journal of clinical medicine\| PubMed ID: 38893010	2024
Electric Auditory Brainstem Response Audiometry in Cochlear Implants: New Recording Paradigm. Audiology research\| PubMed ID: 39051193	2024
X-ray guided anatomy-based fitting: The validity of OTOPLAN. PloS one\| PubMed ID: 39546436	2024

Ahmed Hafez

Biography

JoVE Journal Publications

Other Publications