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Menenjite Bağlı İşitme Kaybı Nedeniyle Koklear İmplant Uygulanan Bireylerde Postoperatif İmpedans Değişikliklerinin İncelenmesi

Year 2019, Volume: 2 Issue: 1, 5 - 9, 01.04.2019

Abstract

Amaç: Bu çalışmanın amacı, menenjite bağlı işitme kaybı sonrasında koklear implant uygulanan bireylerin cerrahi sonrası impedans değerlerindeki değişikliklerin incelenmesi ve idiopatik etyolojiye sahip koklear implant kullanıcılarının impedans değerleriyle aralarındaki farkın karşılaştırtılmasıdır. Gereç ve Yöntem: Çalışmaya çalışma grubu ve kontrol grubu olmak üzere toplam 20 birey dahil edilmiştir. Çalışma grubunu menenjit sonrası işitme kaybına bağlı koklear implant cerrahisi geçiren 10 birey 3K, 7E ; kontrol grubunu ise idiopatik etyolojiye sahip olan koklear implant kullanıcısı 10 birey 3K, 7E oluşturmaktadır. Tüm bireylerin postoperatif 1. ay ve 6. Ay kontrollerinde CG ve MP 1+2 stimülasyon modları için kaydedilen impedans değerleri değerlendirilmiştir. Değerlendirmeler retrospektif olarak Cochlear firmasına ait Custom Sound 5.2 yazılımı üzerinden kaydedilmiştir. Bulgular: Yapılan istatistiksel analizler sonucunda; çalışma grubunda post-op 6. ayda post-op 1. aya göre CG modu için 19- 20-21-22. elektrotların; MP1+2 stimülasyon modu için 20-21- 22. elektrotların; yani kokleanın apikal bölgesindeki elektrotların impedans değerlerinde anlamlı düşüş gözlenmiştir p0.05 . Sonuç: Menenjit sonrası koklear implant kullanıcısı bireylerde diğer koklear implant kullanıcısı bireyler gibi erken dönemde kokleanın apikal bölgesindeki daha yüksek impedans değerleri elde edilir. Sonraki araştırmalarda elektrodun bulunduğu bölge, yaş ve kokleadaki patofizyolojik değişiklikler göz önüne alınması önerilmiştir.

References

  • Busby, P., Plant, K., & Whitford, L. (2002). Electrode impedance in adults and children using the Nucleus 24 cochlear implant system. Cochlear Implants International, 3(2), 87-103.
  • Choi, J., Payne, M. R., Campbell, L. J., Bester, C. W., Newbold, C., Eastwood, H., & O’leary, S. J. (2017). Electrode Impedance Fluctuations as a Biomarker for Inner Ear Pathology After Cochlear Implantation. Otology & Neurotology, 38(10), 1433-1439.
  • Dorman, M. F., Smith, L. M., Dankowski, K., McCandless, G., & Parkin, J. L. (1992). Long-term measures of electrode impedance and auditory thresholds for the Ineraid cochlear implant. Journal of Speech, Language, and Hearing Research, 35(5), 1126-1130.
  • Durisin, M., Büchner, A., Lesinski-Schiedat, A., Bartling, S., Warnecke, A., & Lenarz, T. (2015). Cochlear implantation in children with bacterial meningitic deafness: the influence of the degree of ossification and obliteration on impedance and charge of the implant. Cochlear Implants International, 16(3), 147-158.
  • Francis, H. W., Pulsifer, M. B., Chinnici, J., & et al. (2004). Effects of central nervous system residua on cochlear implant results in children deafened by meningitis. Archives of Otolaryngology–Head & Neck Surgery, 130(5), 604- 611. doi:10.1001/archotol.130.5.604 Gross, G. W., Rhoades, B. K., Reust, D. L., & Schwalm, F. U. (1993). Stimulation of monolayer networks in culture through thin-film indium-tin oxide recording electrodes. Journal of neuroscience methods, 50(2), 131-143.
  • Hughes, M. L., Vander Werff, K. R., Brown, C. J., Abbas, P. J., Kelsay, D. M., Teagle, H. F., & Lowder, M. W. (2001). A longitudinal study of electrode impedance, the electrically evoked compound action potential, and behavioral measures in nucleus 24 cochlear implant users. Ear and hearing, 22(6), 471-486.
  • Kutz, J., Simon, L., Chennupati, S., Giannoni, C., & Manolidis, S. (2006). Clinical predictors for hearing loss in children with bacterial meningitis. Archives of Otolaryngology–Head & Neck Surgery, 132(9), 941-945. doi:10.1001/ archotol.132.9.941
  • Li, L., Parkins, C. W., & Webster, D. B. (1999). Does electrical stimulation of deaf cochleae prevent spiral ganglion degeneration? Hearing research, 133(1-2), 27-39.
  • Merchant, S. N., & Gopen, Q. (1996). A human temporal bone study of acute bacterial meningogenic labyrinthitis. The American journal of otology, 17(3), 375-385.
  • Newbold, C., Mergen, S., Richardson, R., Seligman, P., Millard, R., Cowan, R., & Shepherd, R. (2014). Impedance changes in chronically implanted and stimulated cochlear implant electrodes. Cochlear Implants International, 15(4), 191-199.
  • Nichani, J., Green, K., Hans, P., Bruce, I., Henderson, L., & Ramsden, R. (2011). Cochlear implantation after bacterial meningitis in children: outcomes in ossified and nonossified cochleas. Otology & Neurotology, 32(5), 784-789.
  • Phelps, P. D. (1992). The basal turn of the cochlea. The British Journal of Radiology, 65(773), 370-374.
  • Trudel, M., Côté, M., Philippon, D., Simonyan, D., Villemure-Poliquin, N., & Bussières, R. (2018). Comparative Impacts of Scala Vestibuli Versus Scala Tympani Cochlear Implantation on Auditory Performances and Programming Parameters in Partially Ossified Cochleae. Otology & Neurotology, 39(6), 700- 706.
  • Tykocinski, M., Cohen, L. T., & Cowan, R. S. (2005). Measurement and analysis of access resistance and polarization impedance in cochlear implant recipients. Otology & Neurotology, 26(5), 948-956.

Investigation of Postoperative Impedance Changes in Individuals with Cochlear Implant due to Hearing Loss After Meningitis

Year 2019, Volume: 2 Issue: 1, 5 - 9, 01.04.2019

Abstract

Objective: The aim of this study was to investigate the postoperative impedance changes of cochlear implant CI users due to the etiology of the meningitis and to compare the difference between impedance values of cochlear implant users with idiopathic etiology. Material and Method: Twenty subjects were included in this study; 10 subjects 3F, 7M in the study group and 10 subjects 3F, 7M in the control group. The study group consisted of the subject with CI due to the menengitis; and the control group consisted of subjects with CI with idiopathic etiology. The impedance data for CG and MP 1+2 stimulation modes for the first and sixth months after the CI surgery were obtained from the Custom Sound 5.2 software from Cochlear Corporation. Results: At post-op 6th month, a significant decrease was observed in the impedance values of the electrodes in the apical region of the cochlea E19-22 according to the post-op 1st month p0.05 . Conclusion: Subjects with cochlear implants due to the meningitis have higher impedance values in the apical region of the cochlea in the early period like the other CI users with idiopathic etiology. In the future studies, it has been suggested to take in consider the region of electrode, age and the pathophysiological changes in the cochlea.

References

  • Busby, P., Plant, K., & Whitford, L. (2002). Electrode impedance in adults and children using the Nucleus 24 cochlear implant system. Cochlear Implants International, 3(2), 87-103.
  • Choi, J., Payne, M. R., Campbell, L. J., Bester, C. W., Newbold, C., Eastwood, H., & O’leary, S. J. (2017). Electrode Impedance Fluctuations as a Biomarker for Inner Ear Pathology After Cochlear Implantation. Otology & Neurotology, 38(10), 1433-1439.
  • Dorman, M. F., Smith, L. M., Dankowski, K., McCandless, G., & Parkin, J. L. (1992). Long-term measures of electrode impedance and auditory thresholds for the Ineraid cochlear implant. Journal of Speech, Language, and Hearing Research, 35(5), 1126-1130.
  • Durisin, M., Büchner, A., Lesinski-Schiedat, A., Bartling, S., Warnecke, A., & Lenarz, T. (2015). Cochlear implantation in children with bacterial meningitic deafness: the influence of the degree of ossification and obliteration on impedance and charge of the implant. Cochlear Implants International, 16(3), 147-158.
  • Francis, H. W., Pulsifer, M. B., Chinnici, J., & et al. (2004). Effects of central nervous system residua on cochlear implant results in children deafened by meningitis. Archives of Otolaryngology–Head & Neck Surgery, 130(5), 604- 611. doi:10.1001/archotol.130.5.604 Gross, G. W., Rhoades, B. K., Reust, D. L., & Schwalm, F. U. (1993). Stimulation of monolayer networks in culture through thin-film indium-tin oxide recording electrodes. Journal of neuroscience methods, 50(2), 131-143.
  • Hughes, M. L., Vander Werff, K. R., Brown, C. J., Abbas, P. J., Kelsay, D. M., Teagle, H. F., & Lowder, M. W. (2001). A longitudinal study of electrode impedance, the electrically evoked compound action potential, and behavioral measures in nucleus 24 cochlear implant users. Ear and hearing, 22(6), 471-486.
  • Kutz, J., Simon, L., Chennupati, S., Giannoni, C., & Manolidis, S. (2006). Clinical predictors for hearing loss in children with bacterial meningitis. Archives of Otolaryngology–Head & Neck Surgery, 132(9), 941-945. doi:10.1001/ archotol.132.9.941
  • Li, L., Parkins, C. W., & Webster, D. B. (1999). Does electrical stimulation of deaf cochleae prevent spiral ganglion degeneration? Hearing research, 133(1-2), 27-39.
  • Merchant, S. N., & Gopen, Q. (1996). A human temporal bone study of acute bacterial meningogenic labyrinthitis. The American journal of otology, 17(3), 375-385.
  • Newbold, C., Mergen, S., Richardson, R., Seligman, P., Millard, R., Cowan, R., & Shepherd, R. (2014). Impedance changes in chronically implanted and stimulated cochlear implant electrodes. Cochlear Implants International, 15(4), 191-199.
  • Nichani, J., Green, K., Hans, P., Bruce, I., Henderson, L., & Ramsden, R. (2011). Cochlear implantation after bacterial meningitis in children: outcomes in ossified and nonossified cochleas. Otology & Neurotology, 32(5), 784-789.
  • Phelps, P. D. (1992). The basal turn of the cochlea. The British Journal of Radiology, 65(773), 370-374.
  • Trudel, M., Côté, M., Philippon, D., Simonyan, D., Villemure-Poliquin, N., & Bussières, R. (2018). Comparative Impacts of Scala Vestibuli Versus Scala Tympani Cochlear Implantation on Auditory Performances and Programming Parameters in Partially Ossified Cochleae. Otology & Neurotology, 39(6), 700- 706.
  • Tykocinski, M., Cohen, L. T., & Cowan, R. S. (2005). Measurement and analysis of access resistance and polarization impedance in cochlear implant recipients. Otology & Neurotology, 26(5), 948-956.
There are 14 citations in total.

Details

Primary Language Turkish
Journal Section Research Article
Authors

Merve İkiz This is me

Merve Ozbal Batuk This is me

Aysun Parlak Kocabay This is me

Betül Çiçek Çınar This is me

Gonca Sennaroğlu This is me

Publication Date April 1, 2019
Published in Issue Year 2019 Volume: 2 Issue: 1

Cite

APA İkiz, M., Batuk, M. O., Kocabay, A. P., Çınar, B. Ç., et al. (2019). Menenjite Bağlı İşitme Kaybı Nedeniyle Koklear İmplant Uygulanan Bireylerde Postoperatif İmpedans Değişikliklerinin İncelenmesi. Türk Odyoloji Ve İşitme Araştırmaları Dergisi, 2(1), 5-9.