Effects of Clarion electrode design on mapping levels in children.
Ann Otol Rhinol Laryngol
; 111(12 Pt 1): 1128-32, 2002 Dec.
Article
em En
| MEDLINE
| ID: mdl-12498376
ABSTRACT
The design of the placement of the Clarion cochlear implant's intracochlear electrode array has undergone 2 revisions since its introduction, each to improve modiolar proximity. Stimulation with modiolar proximity may reduce current requirements for threshold levels and most comfortable levels of stimulation. This study analyzed the effects of electrode design on programming levels for deaf children implanted with the 3 cochlear implant designs and followed at The Children's Hospital of Philadelphia. Psychophysical data were reported if measurements were taken approximately 3 months after initial activation, and programming parameters included nonsequential monopolar stimulation of 75-micros-per-phase biphasic pulses presented at 813 Hz per electrode. The threshold level and most comfortable programming level were measured by standard clinical techniques appropriate for children. The results indicate that the 2 electrode placement revisions have each significantly reduced threshold levels and most comfortable stimulation levels. These results are discussed in the context of device aesthetics, safety, and function.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Implantes Cocleares
/
Surdez
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
Limite:
Child
/
Humans
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Ann Otol Rhinol Laryngol
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Estados Unidos