Is There Any Correlation between Spread of Excitation Width and the Refractory Properties of the Auditory Nerve in Cochlear Implant Users?

2020 ◽  
pp. 1-10
Author(s):  
Juliana Coutinho da Silva ◽  
Maria Valéria Schmidt Goffi-Gomez ◽  
Robinson Koji Tsuji ◽  
Ricardo Bento ◽  
Rubens Brito Neto
Keyword(s):  
Cochlear Implant ◽  
Auditory Nerve ◽  
Spread Of Excitation

Intraoperative transimpedance and spread of excitation profile correlations with a lateral-wall cochlear implant electrode array

2021 ◽  
Vol 405 ◽  
pp. 108235
Author(s):  
Samuel Söderqvist ◽  
Satu Lamminmäki ◽  
Antti Aarnisalo ◽  
Timo Hirvonen ◽  
Saku T. Sinkkonen ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Electrode Array ◽  
Lateral Wall ◽  
Excitation Profile ◽  
Spread Of Excitation

Spread of Excitation (SoE) — A Non-Invasive Assessment of Cochlear Implant Electrode Placement

2010 ◽  
Vol 11 (sup1) ◽  
pp. 479-481 ◽  
Author(s):  
Adam Walkowiak ◽  
Bozena Kostek ◽  
Artur Lorens ◽  
Anita Obrycka ◽  
Arkadiusz Wasowski ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Electrode Placement ◽  
Non Invasive ◽  
Spread Of Excitation

Electrically Evoked Brainstem Responses in Cochlear Implant Recipients

1987 ◽  
Vol 96 (1) ◽  
pp. 34-38 ◽  
Author(s):  
Richard T. Miyamoto ◽  
D. Douglas Brown
Keyword(s):  
Electrical Stimulation ◽  
Cochlear Implant ◽  
Auditory Nerve ◽  
Clinical Applications ◽  
Assessment Tools ◽  
Laboratory Setting ◽  
Recording Technique ◽  
Stimulus Artifact ◽  
Artifact Suppression ◽  
Stimulation Of

Electrical stimulation of the auditory nerve in the profoundly deaf population through implanted cochlear prostheses has increased the need for reliable electrophysiologic assessment tools. We have recorded electrically evoked brainstem responses (EABRs) in 21 subjects who have received a 3M/House cochlear implant. Recordings have been made, both intraoperatively and postoperatively, in the laboratory setting. The recording technique, methods of stimulus artifact suppression, and results of our measurements are described. Clinical applications of this technology are suggested.

scholarly journals Assessing auditory nerve condition by tone decay in deaf subjects with a cochlear implant

2018 ◽  
Vol 57 (11) ◽  
pp. 864-871
Author(s):  
Jan-Willem A. Wasmann ◽  
Ruben H. M. van Eijl ◽  
Huib Versnel ◽  
Gijsbert A. van Zanten
Keyword(s):  
Cochlear Implant ◽  
Auditory Nerve ◽  
Tone Decay

scholarly journals Effect of pulse phase duration on forward masking and spread of excitation in cochlear implant listeners

PLoS ONE ◽  
2020 ◽  
Vol 15 (7) ◽  
pp. e0236179
Author(s):  
Ning Zhou ◽  
Zhen Zhu ◽  
Lixue Dong ◽  
John J. Galvin
Keyword(s):  
Cochlear Implant ◽  
Forward Masking ◽  
Phase Duration ◽  
Pulse Phase ◽  
Spread Of Excitation

THE IMPACT OF AUDITORY NERVE EXPERIMENTS ON COCHLEAR IMPLANT DESIGN

1983 ◽  
Vol 405 (1 Cochlear Pros) ◽  
pp. 114-121 ◽  
Author(s):  
N. Y. S. Kiang ◽  
E. M. Keithley ◽  
M. C. Liberman
Keyword(s):  
Cochlear Implant ◽  
Auditory Nerve ◽  
Implant Design ◽  
The Impact

scholarly journals Neural Tissue Degeneration in Rosenthal’s Canal and Its Impact on Electrical Stimulation of the Auditory Nerve by Cochlear Implants: An Image-Based Modeling Study

2020 ◽  
Vol 21 (22) ◽  
pp. 8511
Author(s):  
Kiran Kumar Sriperumbudur ◽  
Revathi Appali ◽  
Anthony W. Gummer ◽  
Ursula van Rienen
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implants ◽  
Auditory Nerve ◽  
Ganglion Cells ◽  
Spiral Ganglion ◽  
Sensorineural Deafness ◽  
Neural Tissue ◽  
Neural Degeneration ◽  
Tissue Degeneration ◽  
Ganglion Neurons

Sensorineural deafness is caused by the loss of peripheral neural input to the auditory nerve, which may result from peripheral neural degeneration and/or a loss of inner hair cells. Provided spiral ganglion cells and their central processes are patent, cochlear implants can be used to electrically stimulate the auditory nerve to facilitate hearing in the deaf or severely hard-of-hearing. Neural degeneration is a crucial impediment to the functional success of a cochlear implant. The present, first-of-its-kind two-dimensional finite-element model investigates how the depletion of neural tissues might alter the electrically induced transmembrane potential of spiral ganglion neurons. The study suggests that even as little as 10% of neural tissue degeneration could lead to a disproportionate change in the stimulation profile of the auditory nerve. This result implies that apart from encapsulation layer formation around the cochlear implant electrode, tissue degeneration could also be an essential reason for the apparent inconsistencies in the functionality of cochlear implants.

Sign in / Sign up

Export Citation Format

Share Document