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  • Küçük Resim
    Öğe
    Comparison eCAP and behaviour thresholds in post lingual medel cochlear implant users
    (2020) Sarac, Elif Tugba; Deniz, Huseyin; Okuyucu, Semsettin
    Aim: Our purpose with this study is to determine the most effective and suitable cochlear implant programming method for CI users’ implants to experience quality hearing and for the users to achieve efficiency from their implants.Materials and Methods:Twenty-five cochlear implant users with post lingual progressive hearing loss were included in the study. Twelve electrodes’ ART (auditory nerve response telemetry) thresholds were determined and were statistically analyzed to be evaluated in the study. For 12 electrodes whose AutoART threshold was determined, the MCLs (most comfortable loudness) were determined behaviorally.Results: No correlations were found between the 12 electrodes and AutoART. It was seen that there was a correlation between the pure tone average obtained from 500-1000-2000 and 4000Hz and the speech reception threshold.Conclusion: The use of two test batteries together to determine thresholds can be helpful in the programming of the speech processor. The more audiologists work with cochlear implant patients and do programming, the more they accumulate data and gain occupational experience. With the occupational experience acquired in this manner, more accurate programming can be done.
  • Küçük Resim
    Öğe
    The effect of the cochlear implant electrode position on the neural response telemetry results: A prospective clinical trial at a single center
    (2019) Deniz, Huseyin; Yazici, Alper
    Aim: This study aims to investigate the changes in the post-op NRT thresholds of two different implant electrodes of the same brand positioned laterally within the scala tympani, and the pre-modiolar locations, using the same round window approach.Material and Methods: After CI operation NRT measurements conducted at different times on the Nucleus® CI422 nucleus slim straight and Nucleus® CI24RE electrode types of two different electrode models.Results: The number of patients who received the Nucleus® CI24RE (ST) electrode and the Nucleus® CI422 nucleus slim straight were 26 (33.3%) and 56 (66.7%), respectively. NRT values tended to decrease from the basal part of cochlea towards an apex at any time of evaluation in both types of cochlear implants. Conclusion: There was a difference between Nucleus® CI24RE and Nucleus® CI422 nucleus slim straight groups in terms of NRT thresholds. Nucleus® CI422 nucleus slim straight electrode yielded lower NRT threshold levels.