Open AccessElectrophysiological Properties of Cochlear Implantation in the Gerbil Using a Flexible Array
Author(s) -
Christine E. DeMason,
Baishakhi Choudhury,
Faisal I. Ahmad,
Douglas C. Fitzpatrick,
Jacob Wang,
Craig A. Buchman,
Oliver F. Adunka
Publication year - 2012
Publication title -
ear and hearing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.577
H-Index - 109
eISSN - 1538-4667
pISSN - 0196-0202
DOI - 10.1097/aud.0b013e3182498c28
Subject(s) - round window , gerbil , cochlea , compound muscle action potential , electrode array , electrode , octave (electronics) , inner ear , electrophysiology , materials science , biomedical engineering , audiology , cochlear implant , hair cell , basilar membrane , medicine , anatomy , acoustics , chemistry , physics , cardiology , ischemia
Cochlear implants (CI) perform especially well if residual acoustic hearing is retained and combined with the CI in the same ear (also termed hybrid or electric-acoustic stimulation). However, in most CI patients, residual hearing is at least partially compromised during surgery, and in some it is lost completely. At present, clinicians have no feedback on the functional status of the cochlea during electrode insertion. Development of an intraoperative physiological recording algorithm during electrode insertion could serve to detect reversible cochlear trauma and optimal placement relative to surviving hair cells. In this report, an animal model was used to assist in determining physiological markers for these conditions using a flexible electrode similar to human surgery.