Multichannel cochlear implantation: Utah-design.
The Utah-design multichannel cochlear implant consists of six intracochlear monopolar electrodes, one promontory electrode, and an indifferent electrode. Connection of the intracochlear system to the external sound processor is via a percutaneous pedestal system. Four of the intracochlear electrodes receive simultaneous stimulation. Twenty patients implanted at the University of Utah with more than 1 year of sound processor use were evaluated for the study. All patients wear their sound processors on a daily basis. Seven of the 20 are able to use the telephone without special devices. Nineteen patients were tested with open set CID sentences with an average 42.2% response. A comparison was made between live voice and taped voice open-set spondee word list performance, showing slightly better overall performance with live voice.
Parkin
J L
JL
Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City 84132.
Stewart
B E
BE
D000328:Adult; D001299:Audiometry; D003054:Cochlear Implants; D003638:Deafness / Q000534:rehabilitation*; D004566:Electrodes; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011474:Prosthesis Design; D013063:Speech Discrimination Tests