Cochlear implants international · 2022
Facial nerve stimulation in cochlear implant users - a matter of stimulus parameters?
СтатьяНазвание и аннотация: Перевод пока не подготовлен
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Gärtner Lutz, Lenarz Thomas, Ivanauskaite Jurgita, Büchner Andreas
Аннотация
OBJECTIVES: To describe the influence of stimulus parameters on aberrant facial nerve stimulation in cochlear implant users.
METHODS: Retrospective case series (three ears - two patients). Cochlear implant patients with severe facial nerve stimulation and degraded speech comprehension who underwent re-implantation with Neuro Zti EVO (Oticon Medical).
RESULTS: In all three ears, side effects evoked by aberrant facial nerve stimulation could be resolved and thereby speech comprehension was improved.
CONCLUSIONS: Aberrant facial nerve stimulation in cochlear implant patients was successfully resolved by re-implantation. We hypothesize that one or more of the specific stimulus paramet ers are responsible for this success: combined common ground and monopolar stimulation mode, asymmetric pulse waveform with active anodic leading first phase followed by slow capacitive discharge, and pulse width modulation for loudness coding.
METHODS: Retrospective case series (three ears - two patients). Cochlear implant patients with severe facial nerve stimulation and degraded speech comprehension who underwent re-implantation with Neuro Zti EVO (Oticon Medical).
RESULTS: In all three ears, side effects evoked by aberrant facial nerve stimulation could be resolved and thereby speech comprehension was improved.
CONCLUSIONS: Aberrant facial nerve stimulation in cochlear implant patients was successfully resolved by re-implantation. We hypothesize that one or more of the specific stimulus paramet ers are responsible for this success: combined common ground and monopolar stimulation mode, asymmetric pulse waveform with active anodic leading first phase followed by slow capacitive discharge, and pulse width modulation for loudness coding.