Iris Burck, Rania A. Helal, Nagy Naguib Naeem Naguib, Nour-Eldin Abdelrehim Nour-Eldin Mohammed, Jan-Erik Scholtz, Simon Martin, Martin Leinung, Silke Helbig, Timo Stöver, Annette Lehn, Thomas J. Vogl
- Objectives: To correlate the radiological assessment of the mastoid facial canal in postoperative cochlear implant (CI) cone-beam CT (CBCT) and other possible contributing clinical or implant-related factors with postoperative facial nerve stimulation (FNS) occurrence. Methods: Two experienced radiologists evaluated retrospectively 215 postoperative post-CI CBCT examinations. The mastoid facial canal diameter, wall thickness, distance between the electrode cable and mastoid facial canal, and facial-chorda tympani angle were assessed. Additionally, the intracochlear position and the insertion angle and depth of electrodes were evaluated. Clinical data were analyzed for postoperative FNS within 1.5-year follow-up, CI type, onset, and causes for hearing loss such as otosclerosis, meningitis, and history of previous ear surgeries. Postoperative FNS was correlated with the measurements and clinical data using logistic regression. Results: Within the study population (mean age: 56 ± 18 years), ten patients presented with FNS. The correlations between FNS and facial canal diameter (p = 0.09), wall thickness (p = 0.27), distance to CI cable (p = 0.44), and angle with chorda tympani (p = 0.75) were statistically non-significant. There were statistical significances for previous history of meningitis/encephalitis (p = 0.001), extracochlear-electrode-contacts (p = 0.002), scala-vestibuli position (p = 0.02), younger patients’ age (p = 0.03), lateral-wall-electrode type (p = 0.04), and early/childhood onset hearing loss (p = 0.04). Histories of meningitis/encephalitis and extracochlear-electrode-contacts were included in the first two steps of the multivariate logistic regression. Conclusion: The mastoid-facial canal radiological assessment and the positional relationship with the CI electrode provide no predictor of postoperative FNS. Histories of meningitis/encephalitis and extracochlear-electrode-contacts are important risk factors.
MetadatenAuthor: | Iris BurckORCiDGND, Rania A. Helal, Nagy Naguib Naeem NaguibORCiDGND, Nour-Eldin Abdelrehim Nour-Eldin MohammedORCiDGND, Jan-Erik ScholtzGND, Simon MartinORCiDGND, Martin LeinungORCiDGND, Silke HelbigORCiDGND, Timo StöverGND, Annette LehnORCiDGND, Thomas J. VoglORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-636079 |
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DOI: | https://doi.org/10.1007/s00330-021-08128-w |
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ISSN: | 1432-1084 |
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Parent Title (English): | European radiology |
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Publisher: | Springer |
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Place of publication: | Berlin ; Heidelberg |
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Document Type: | Article |
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Language: | English |
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Date of Publication (online): | 2021/07/05 |
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Date of first Publication: | 2021/07/05 |
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Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
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Release Date: | 2022/06/01 |
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Tag: | Cochlear implantation; Cone-beam computed tomography; Electric stimulation; Facial nerve |
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Volume: | 32 |
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Issue: | 1 |
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Page Number: | 9 |
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First Page: | 234 |
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Last Page: | 242 |
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Note: | Open Access funding enabled and organized by Projekt DEAL. The authors state that this work has not received any funding. |
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HeBIS-PPN: | 496362224 |
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Institutes: | Medizin |
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Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit |
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Sammlungen: | Universitätspublikationen |
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Licence (German): | Creative Commons - Namensnennung 4.0 |
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