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Outcomes from adult implantation, the first 100 patients

Published online by Cambridge University Press:  29 June 2007

D. W. Proops ,
I. Donaldson ,
H. R. Cooper ,
J. Thomas ,
S. P. Burrell ,
R. L. Stoddart ,
A. Moore  and
I. M. Cheshire
D. W. Proops
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
I. Donaldson
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
H. R. Cooper*
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
J. Thomas
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
S. P. Burrell
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
R. L. Stoddart
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
A. Moore
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
I. M. Cheshire
Affiliation:
Midland Cochlear Implant Programme, Department of Otolaryngology, University Hospital Birmingham, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
*
Address for correspondence: Mr Huw Cooper, Consultant Audiological Scientist, Hearing Assessment and Rehabilitation Centre,Selly Oak Hospital, Raddlebarn Road, Selly Oak, Birmingham, West Midlands B29 6JD.
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Abstract

We present the outcome of implantation in the first 100 adult patients treated under the Midland Cochlear Implant Programme. All patients were post-lingually deaf with profound or total hearing loss. Performance was tested in lip-reading, implant only and combined lip-reading and implant modes using BKB sentences, connected discourse tracking (CDT) and environmental sound recognition. Assessments were made at nine and 18 months post-implant.

The dominant aetiologies were idiopathic and meningitis. Meningitis was associated with the greatest numbers of ossified cochleas. Forty-three per cent of cases of partial ossification were identified only at surgery. Four per cent of patients became non-users of their devices, however the majority used their implants for more than 12 hours each day. The mean scores at nine months post-implant, in the implant only mode, were for environmental sound recognition 56.7 per cent, for BKB sentences 46.6 per cent (80 per cent of patients scored above 0 per cent) and for CDT 31.2 words per minute (w.p.m.) (62 per cent scored above zero per cent). In the combined lip reading and implant mode the mean scores, at nine months, were for BKB sentences 81.5 per cent and for CDT 65.8 w.p.m. All results were sustained at 18 months.

Patients reported that implantation significantly reduced their hearing handicap. Pre-operative measures of depression were also significantly reduced at nine months post-implant. Results were sustained at 18 months.

Post-operative audiological outcomes in the electrical stimulation only mode correlated significantly with length of profound deafness. Results suggest that performance outcome is also related to the number of active electrodes.

Keywords

Cochlear implantsOutcome assessment
Type
Research Article
Information
The Journal of Laryngology & Otology , Volume 113 , Supplement 24 , August 1999 , pp. 5 - 13
Copyright
Copyright © JLO (1984) Limited 1999

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