JSLHR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Speech and Hearing Research Vol.35 1126-1130 October 1992.
© American Speech-Language-Hearing Association
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow My Folders
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Dorman, M. F.
Right arrow Articles by Parkin, J. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dorman, M. F.
Right arrow Articles by Parkin, J. L.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Long-Term Measures of Electrode Impedance and Auditory Thresholds for the Ineraid Cochlear Implant

Michael F. Dorman 1
Luke M. Smith 2
Korine Dankowski 3
Geary McCandless 4

James L. Parkin 4
1 Arizona State University Tempe
2 Sinai Samaritan Medical Center Milwaukee, WI
3 Smith & Nephew Richards Memphis, TN
4 University of Utah School of Medicine Salt Lake City

Measures of electrode impedance and of detection thresholds for electrical stimuli were extracted from the records of patients implanted with the Ineraid cochlear prosthesis. An analysis of impedance measures, obtained at 1, 12, 24, and 36 months after surgery, demonstrated (a) a significant decrease in impedance over the first year for electrodes that carried current and (b) significant increases in impedance at 24 and 36 months for electrodes that did not carry current. An analysis of detection thresholds, obtained at the same times as the impedance measures, demonstrated that averaged thresholds for the current-carrying electrodes varied no more than 0.5 dB over the 3-year period. These results support the conclusion that stimulation with the Ineraid device does not produce deleterious changes in the electrodes or in the target neural tissue.

KEY WORDS: cochlear implant, threshold, impedance, long-term

Submitted on May 9, 1991
Accepted on December 9, 1991


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
All ASHA Journals AJA AJSLP JSLHR LSHSS
Copyright © 1992 by the American Speech-Language-Hearing Association.