OBJECTIVE: The objective of this study was to examine the effect that age at implantation has on performance of children who received multichannel cochlear implants. STUDY DESIGN: This is a retrospective study of 295 children who were broken down into 5 age groups based on age at implantation: 1-3 years, 3-5 years, 5-7 years, 7-9 years, and 9-11 years. Speech perception test scores obtained 12, 24, and 36 months postactivation were compared for the 5 groups using repeated-measures analysis of variance. SETTING: This study was carried out at a tertiary academic medical center. PATIENTS: Subjects consisted of 295 children who ranged in age from 12 months to 10 years 11 months at the time they obtained their cochlear implant. INTERVENTION: All patients received their cochlear implant at a single implant facility. MAIN OUTCOME MEASURES: Performance on several speech perception tests was compared 12, 24, and 36 months postactivation. Performance was evaluated as a function of age at implantation. RESULTS: Patients in all 5 groups demonstrated improved scores when compared with scores obtained preoperatively with hearing aids. Repeated-measures analysis of variance (ANOVA) revealed a significant group by time interaction for 3 of the 5 measures. For all three of these measures, children implanted at younger ages demonstrated greater gains in speech perception over time than children implanted at older ages. CONCLUSIONS: These results are in agreement with those of previous studies indicating that early implantation facilitates improved development of speech perception skills in profoundly deaf children.
OBJECTIVE: The objective of this study was to examine the effect that age at implantation has on performance of children who received multichannel cochlear implants. STUDY DESIGN: This is a retrospective study of 295 children who were broken down into 5 age groups based on age at implantation: 1-3 years, 3-5 years, 5-7 years, 7-9 years, and 9-11 years. Speech perception test scores obtained 12, 24, and 36 months postactivation were compared for the 5 groups using repeated-measures analysis of variance. SETTING: This study was carried out at a tertiary academic medical center. PATIENTS: Subjects consisted of 295 children who ranged in age from 12 months to 10 years 11 months at the time they obtained their cochlear implant. INTERVENTION: All patients received their cochlear implant at a single implant facility. MAIN OUTCOME MEASURES: Performance on several speech perception tests was compared 12, 24, and 36 months postactivation. Performance was evaluated as a function of age at implantation. RESULTS:Patients in all 5 groups demonstrated improved scores when compared with scores obtained preoperatively with hearing aids. Repeated-measures analysis of variance (ANOVA) revealed a significant group by time interaction for 3 of the 5 measures. For all three of these measures, children implanted at younger ages demonstrated greater gains in speech perception over time than children implanted at older ages. CONCLUSIONS: These results are in agreement with those of previous studies indicating that early implantation facilitates improved development of speech perception skills in profoundly deaf children.
Authors: Daniel B Polley; Andrea R Hillock; Christopher Spankovich; Maria V Popescu; David W Royal; Mark T Wallace Journal: J Am Acad Audiol Date: 2008 Nov-Dec Impact factor: 1.664
Authors: Camille C Dunn; Elizabeth A Walker; Jacob Oleson; Maura Kenworthy; Tanya Van Voorst; J Bruce Tomblin; Haihong Ji; Karen I Kirk; Bob McMurray; Marlan Hanson; Bruce J Gantz Journal: Ear Hear Date: 2014 Mar-Apr Impact factor: 3.570