Vestibular evoked myogenic potentials in children after cochlear implantation
| Autor: | Nikos Lefkidis, Miltiadis Tsalighopoulos, Alexandra Pavlidou, Stefanos Triaridis, George Psillas, Konstantinos Markou, I. Vital |
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| Rok vydání: | 2014 |
| Předmět: |
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medicine.medical_specialty medicine.medical_treatment Vestibular evoked myogenic potential Audiology Deafness Cochlear implant otorhinolaryngologic diseases medicine Humans Saccule and Utricle Cochlear implantation Vestibular system business.industry Infant General Medicine Cochlear Implantation Vestibular Evoked Myogenic Potentials medicine.anatomical_structure Otorhinolaryngology Vestibular Diseases Case-Control Studies Child Preschool Surgery Female sense organs Saccule business |
| Zdroj: | Auris, nasus, larynx. 41(5) |
| ISSN: | 1879-1476 |
| Popis: | Objective The aim of this study was to report the effect of unilateral cochlear implantation to vestibular system using vestibular evoked myogenic potentials (VEMPs) by air-conduction in a sample of children aged less than 5 years. Materials This study consisted of 10 children (6 boys and 4 girls), who underwent cochlear implantation surgery at our clinic, and 8 normal hearing children (5 boys and 3 girls) matched for age. The VEMPs were performed before, 10 days, and 6 months after surgery. Both the implanted and unimplanted ears of each child were evaluated, with the cochlear implant both off and on. Results Preoperatively, six (60%) children had abnormal VEMPs responses on both ears. In the postoperative sessions, no child showed any VEMPs response on the implanted side. The VEMPs were not recorded on the unimplanted side either, except for one case. At 6 months, the VEMPs response on the unimplanted side of three children became normal when the cochlear implant was on, and in two children with the device off. Conclusion In the postoperative 6-month-period, the disappearance of VEMPs suggests that the saccule of children can be extensively damaged following cochlear implantation. A recovery of VEMPs can take place on the unimplanted side, with the cochlear implant both on and off. Despite this saccular injury, the absence of clinical signs in children could be explained by their ability to effectively compensate for such vestibular deficits. |
| Databáze: | OpenAIRE |
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