Results of cochlear implantation in patients with severe to profound hearing loss--implications for patient selection
| Autor: | Ekkehard Stürzebecher, Volker Gall, Rainald Knecht, Gottfried Diller, med. Jan Kiefer, Anja Spelsberg, Bärbel Reimer, Christoph von Ilberg, Thomas Pfennigdorff |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Adult
Male Linguistics and Language medicine.medical_specialty medicine.medical_treatment Hearing Loss Sensorineural Audiology Severity of Illness Index Language and Linguistics Speech and Hearing Cochlear implant Preoperative Care otorhinolaryngologic diseases medicine Humans In patient Cochlear implantation Child Postoperative Care Hearing preservation business.industry Patient Selection Auditory Threshold Cochlear Implantation Profound hearing loss Child Preschool Speech Perception Audiometry Pure-Tone Contralateral ear Female sense organs business |
| Zdroj: | Audiology : official organ of the International Society of Audiology. 37(6) |
| ISSN: | 0020-6091 |
| Popis: | In patients with some residual hearing and minor benefit from conventional hearing aids, the benefits of cochlear implantation have to be weighed carefully against eventual adverse effects. In this study, pre- and post-operative thresholds as well as functional results after cochlear implantation are reported; 17 of 44 implanted adults had residual hearing pre-operatively (mean threshold(250 to 4000 Hz): 106 dB HL) in the implanted ear. Residual hearing in the implanted ear could not, in general, be preserved post-operatively. Seventeen of 44 implanted children had some amount of residual hearing in the implanted ear pre-operatively (implanted ear: 114 dB HL; contralateral ear: 109.9 dB HL; mean thresholds(250 to 4000 Hz))). Contrary to the results in adults, residual hearing in the implanted ear remained statistically unchanged. Hearing in the contralateral ear increased significantly from 109.9 to 101.9 dB HL post-operatively. This increase was mainly attributed to maturation of the central auditory pathway. In adults with residual hearing, the monosyllable word recognition scores increased significantly from 9 per cent pre-operatively to 42 per cent post-operatively. Children with residual hearing tended to perform better on speech-related test material compared to children without prior auditory experience. Cochlear implantation is indicated in adults and children with residual hearing and minor benefit from conventional amplification. The contralateral ear in children should be considered for additional acoustical stimulation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|