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CLINICAL TRIAL OF A MULTI‐CHANNEL COCHLEAR PROSTHESIS: RESULTS ON 10 POSTLINGUALLY DEAF PATIENTS
Author(s) -
Clark G. M.,
Dowell R. C.,
Pyman B. C.,
Brown A. M.,
Webb R. L.,
Tong Y. C.,
Bailey Q.,
Seligman P. M.
Publication year - 1984
Publication title -
australian and new zealand journal of surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.111
H-Index - 51
eISSN - 1445-2197
pISSN - 0004-8682
DOI - 10.1111/j.1445-2197.1984.tb05439.x
Subject(s) - medicine , audiology , cochlear implantation , clinical trial , cochlear implant
The clinical trial of a multi‐channel cochlear prosthesis has been carried out on 10 profoundly‐totally deaf adult patients. Speech perception tests have shown that all the patients received significant benefit from the device. They obtained improvements in understanding running speech from 47% to 550% when using the device in conjunction with lipreading compared to lipreading alone. With an open‐set CID sentence test, three patients obtained scores showing an ability to understand speech without the need to lipread, and a further three patients had scores indicating they could also receive useful information without lipreading. In two patients, very limited open‐set scores for electrical stimulation alone were obtained. This was most probably due to the fact that only a few channels of stimulation were possible due to cochlear disease, and they were therefore receiving information more like a single‐channel device. The prosthesis has also been found to provide considerable help in hearing and recognizing everyday sounds.