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Single-channel to multichannel conversions in adult cochlear implant subjects
J T Rubinstein1, W S Parkinson, M W Lowder
1Department of Otolaryngology-Head and Neck Surgery, University of Iowa College of Medicine, Iowa City, USA.
Objective:
This study aimed to compare open-set speech perception of single-channel with multichannel cochlear implants in the same ear of postlingually deafened adults.
Study Design:
The study design was a retrospective case and literature review.
Setting:
The study was conducted at a tertiary referral center with an associated veterans administration hospital.
Patients:
Postlingually deafened adults with at least 6 months of experience with a single-channel cochlear implant were studied.
Intervention:
Replacement of a single-channel with a multichannel cochlear implant in the same ear was performed.
Main Outcome Measures:
Open-set word and sentence perception scores at least 6 months after single-channel implantation and multichannel reimplantation were measured.
Results:
Six of six patients had substantial improvement in open-set speech recognition after reimplantation of the same ear.
Conclusions:
Removal of a functioning single-channel implant and replacement with a multichannel device are appropriate in postlingually deafened adults who desire better speech recognition.