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  • Title: Assessment of electrostimulation in children supplied with cochlear implants.
    Author: Stephan K, Welzl-Müller K.
    Journal: Am J Otol; 1997 Nov; 18(6 Suppl):S97-8. PubMed ID: 9391616.
    Abstract:
    OBJECTIVE: In children supplied with cochlear implants (CIs), there is an urgent need for objective tests for the assessment of electrostimulation. SETTING: An optimized procedure for intraoperative and post-operative applications with short duration test time, based on the measurement of the electrical farfield picked up from surface electrodes on the scalp, is presented; therefore, assessment of stimulation is independent of the stimulating electronic circuitry. OUTCOME: The setup was designed for the COMBI40 multichannel CI using a synchronized sampling technique of the amplified signals. The evaluation procedure includes examination of the time course of the signal and calculation of the input output function. With these options, a straightforward judgment of the electrical performance of the implant in situ, reflecting the input to the auditory nerve, is provided.
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