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Comparative Study
. 2019 Sep 6;48(1):46.
doi: 10.1186/s40463-019-0361-8.

Electrophysiological measurements with electrode types of different perimodiolar properties and the same cochlear implant electronics - a retrospective comparison study

A Perenyi  1 , F Toth  2 , B Dimak  2 , R Nagy  2 , P Schoerg  3 , J Jori  2 , J G Kiss  2 , G Sprinzl  3 , M Csanady  2 , L Rovo  2
Affiliations
Comparative Study

Electrophysiological measurements with electrode types of different perimodiolar properties and the same cochlear implant electronics - a retrospective comparison study

A Perenyi et al. J Otolaryngol Head Neck Surg. .
No abstract available

Keywords: CI512; CI522; CI532; Cochlear implant; Electrode array; Electrophysiology; Perimodiolar.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Intraoperative T-NRT values in all groups: Groups 532 (n = 50), 512 (n = 47) and 522 (n = 43). The “+” stands for significant difference between groups 532 and 512. The “*” represents a significant difference between groups 532 and 522. Error bars represent the standard deviation (SD). The mean NRTs proved to be lower in each electrode in group 532 when compared with both control groups. The difference was significant in 5 measured electrodes when compared with 522 and 3 measured electrodes when compared with 532 (t-probe: p < 0.05). Grand T532–512 means statistical comparison between groups 532 and 512. Grand T532–522 means statistical comparison between groups 532 and 522
Fig. 2
Fig. 2
The mean postoperative C-levels in patient groups with different types of CI: Group 532 (n = 54, n = 54), group 512 (n = 54, n = 54) and group 522 (n = 51, n = 51) at first fitting (a) and 2-month follow-up fitting (b). The “*” stands for a significant difference between groups 532 and 522. Error bars represent the standard deviation (SD). Grand T532–512 means statistical comparison between groups 532 and 512. Grand T532–512 means statistical comparison between groups 532 and 522
Fig. 3
Fig. 3
The mean intraoperative ESRT values in patient groups with different types of CIs: group 532 (n = 44) and group 512 (n = 47). The “+” means a significant difference between groups (a) and (b). Error bars stand for the standard deviation (SD). „A” stands for Nucleus CI532 and „B″ for Nucleus CI512 implants. Grand T532–512 means statistical comparison between groups 532 and 512
Fig. 4
Fig. 4
The mean postoperative T-NRT values in subject groups with CI532 (n = 32) and CI512 (n = 36). The „+” represents a significant difference between groups 532 and 512. Error bars represent the standard deviation (SD). Grand T532–512 means statistical comparison between groups 532 and 512
See this image and copyright information in PMC

References

    1. O'Connell BP, Hunter JB, Gifford RH, Rivas A, Haynes DS, Noble JH, et al. Electrode location and Audiologic performance after Cochlear implantation: a comparative study between nucleus CI422 and CI512 electrode arrays. Otol Neurotol. 2016;37:1032–1035. doi: 10.1097/MAO.0000000000001140. - DOI - PMC - PubMed
    1. Tykocinski M, Cohen LT, Pyman BC, Roland T, Jr, Treaba C, Palamara J, et al. Comparison of electrode position in the human cochlea using various perimodiolar electrode arrays. Am J Otol. 2000;21:205–211. doi: 10.1016/S0196-0709(00)80010-1. - DOI - PubMed
    1. Roland JT., Jr A model for cochlear implant electrode insertion and force evaluation: results with a new electrode design and insertion technique. Laryngoscope. 2005;115:1325–1339. doi: 10.1097/01.mlg.0000167993.05007.35. - DOI - PubMed
    1. Wackym PA, Firszt JB, Gaggl W, Runge-Samuelson CL, Reeder RM. Raulie JC Electrophysiologic effects of placing cochlear implant electrodes in a perimodiolar position in young children. Laryngoscope. 2004;114:71–76. doi: 10.1097/00005537-200401000-00012. - DOI - PubMed
    1. Roland PS, Wright CG. Surgical aspects of Cochlear implantation: mechanisms of insertional trauma. Adv Adv Otorhinolaryngol. 2006;64:11–30. - PubMed

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