Cochlear implantation in obstructed cochleas: the effect of the degree of obstruction on the number of activated electrodes and the amount of postoperative speech perception
| Autor: | A.B. Rinia, A.F. Olphen, E.A. Dunnebier |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
medicine.medical_specialty
Speech perception Cochlear Diseases Radiography medicine.medical_treatment Severity of Illness Index Cochlear implant Temporal bone otorhinolaryngologic diseases medicine Humans Cochlea Retrospective Studies medicine.diagnostic_test business.industry Hearing Tests Temporal Bone Cochlear Implantation Surgery Cochlear Implants Treatment Outcome Otorhinolaryngology Speech Perception sense organs Implant Audiometry business Audiometry Speech |
| Zdroj: | Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-LaryngologyCervico-Facial Surgery. 31(4) |
| ISSN: | 1749-4478 |
| Popis: | Objective: With cochlear implantation, insertion of the electrodes can be hampered by cochlear obstructions. The aim of this study was to investigate the effects of these obstructions on the number of activated electrodes and postoperative speech perception. Study design and setting: Retrospective analysis of the operation reports and CT-scans of patients who underwent cochlear implantation, at the Department of Otorhinolaryngology of the University Medical Center of Utrecht (n = 295). Patients and interventions: Fifty patients with a certain degree of cochlear obstruction were included. Based on the surgical intervention to overcome these obstructions they were subdivided into first-, second- and third degree obstructions. The number of implanted and activated electrodes was determined. Main outcome measures: Three different speech perception tests after 12 months of cochlear implant use. Results: The number of activated electrodes significantly diminished with increasing obstruction degree (P |
| Databáze: | OpenAIRE |
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