Comparative Performance of Lateral Wall and Perimodiolar Cochlear Implant Arrays.
Otol Neurotol
; 42(4): 532-539, 2021 04 01.
Article
en En
| MEDLINE
| ID: mdl-33710993
ABSTRACT
OBJECTIVE:
The physical shape of cochlear implant (CI) arrays may impact hearing outcomes. The goal of this study was to compare post-operative speech and melody perception between patients with lateral wall (LW) and perimodiolar (PM) electrode arrays across a range of lengths and manufacturers. STUDYDESIGN:
Retrospective chart review.SETTING:
Tertiary Care Hospital. PATIENTS 119 adult patients with post-lingual hearing loss who underwent cochlear implantation. MAIN OUTCOMEMEASURES:
A total of seven different electrodes were evaluated including 5 different LW electrodes (CI422 [Cochlear American], 1J [Advanced Bionics], Medium [Med El], Standard [Med El], Flex28 [Med El]) and 2 PM electrodes (Contour [Cochlear American], MidScala [Advanced Bionics]). Speech perception outcomes (nâ=â119 patients) were measured by Consonant-Nucleus-Consonant (CNC) scores collected 3, 6, 12 and 24 months after implantation. Melody perception outcomes (nâ=â35 CI patients and nâ=â6 normal hearing patients) were measured by Melodic Contour Identification (MCI).RESULTS:
CNC scores increased over time after implantation across all array designs. PM designs exhibited higher CNC scores compared to LW electrodes, particularly 6-months after implantation. Pre-operative pure tone averages did not correlate with post-operative CNC scores. PM arrays outperformed LW electrodes in terms of MCI scores.CONCLUSIONS:
The physical shape of cochlear implant electrode arrays may impact hearing performance. Compared to LW designs, PM arrays appear to offer superior speech perception during the first 6 months after implantation, with performance equalizing between groups by 24 months. Compared to LW designs, PM arrays also appear to afford superior melody perception.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Percepción del Habla
/
Implantes Cocleares
/
Implantación Coclear
Tipo de estudio:
Observational_studies
/
Prognostic_studies
Límite:
Adult
/
Humans
Idioma:
En
Revista:
Otol Neurotol
Asunto de la revista:
NEUROLOGIA
/
OTORRINOLARINGOLOGIA
Año:
2021
Tipo del documento:
Article