Cochlear implants in post-lingual persons: results during the first five years of the clinical course
Magazine: Acta Otorrinoralingológica Española
Date: Dec 1, 1996Neurophysiology [SP] Otorhinolaryngology
Abundant literature is available on the results of cochlear implants in postlingual persons. Nevertheless, there are few long-term studies with a follow-up of more than 1 year. We present the outcomes of 37 postlingual patients with a 5-year follow-up period. We examined the modifications that occurred with changes in coding strategy (MPEAK-SPEAK). After activation, the coding strategy was SPEAK in 10 patients. MPEAK in 20: 7 other SPEAK had changed from MPEAK. Significant improvement (p < 0.01) was observed in all the tests in the first 6 months.
Subsequent assessments revealed a constant improvement in all tests. The results were statistically significant (p < 0.05) for vowels, consonants and bisyllables. Performance with the SPEAK strategy was better than with MPEAK. These results were statistically significant for consonants (p < 0.05), monosyllables (p < 0.05) and bisyllables (p < 0.01).
We concluded that the results of postlingual patients after cochlear implantation showed clear benefits of these devices in profound bilateral deafness, better results with the SPEAK coding strategy than with MPEAK and constant improvement in results, even after the first year of surgery.
CITATION Acta Otorrinolaringol Esp. 1998 Jan-Feb;49(1):19-24
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