人工耳蝸植入年齡對兒童詞彙能力發展的影響

Vocabulary Development of Children with Cochlear Implants: Effect of Age at Implantation

林晏君(Yen-Chun Lin) ； 楊惠美(Hui-Mei Yang) ； 吳俊良(Jiunn-Liang Wu)

《台灣耳鼻喉頭頸外科雜誌》 38卷1期 (2003/02) Pp. 1-5

https://doi.org/10.6286/2003.38.1.1

摘要

OBJECTIVE: The purposes of this study were to examine if cochlear implants benefit congenitally deaf children in the performance of vocabulary development up to 2 years of follow-up, and if the age at implantation plays an important role.
METHOD: Sixteen congenitally deaf children with Nucleus CI24M implants were enrolled in this study prospectively. For assessment of vocabulary development in these implantees, Peabody Pictures Vocabulary Test (PPVT) was conducted in a 6-month interval after connection. Regress analysis was used to correlate the measures of progression and the age of implantation.
RESULTS: Great variation of the vocabulary development was observed among the 16 implantees from PPVT standardized scores at 1 and 2 years post connection. There was no obvious progression noticed in general. The average standardized score at 12 months post connection was 88.0, while at 24 months was 89.54, no significant was achieved statistically (p＞0.05). Which revealed vocabulary ability progressed along with the use of implants within 2 years post connection. However, the speed of their progresses did not override that of children with normal hearing. The progresses of vocabulary development in the second year post-connection were negatively correlated with the age at implantation (p=0.0094). It means those received implantation at an older age progress less during this period of time. The children were grouped arbitrarily into younger group (implant age ＜3 yr) and elder group (implant age ＞3 yr). The younger group was noticed with increasing speed in progression during the 2nd year period, while the elder group showed regression in progression speed.
CONCLUSION: The result showed cochlear implants benefit congenitally deaf children with implants up to 2 years of follow-up. Age at implantation was negatively correlated to the progress of vocabulary development. It supported that congenitally profound deaf children should be implanted as early as possible in order to develop language in their early childhood, if they could not obtain enough benefit from hearing aids.

關鍵字

人工耳蝸 ； 修訂版畢保德圖畫詞彙測驗 ； PPVT ； 先天性聽障 ； 詞彙發展

並列摘要

OBJECTIVE: The purposes of this study were to examine if cochlear implants benefit congenitally deaf children in the performance of vocabulary development up to 2 years of follow-up, and if the age at implantation plays an important role.
METHOD: Sixteen congenitally deaf children with Nucleus CI24M implants were enrolled in this study prospectively. For assessment of vocabulary development in these implantees, Peabody Pictures Vocabulary Test (PPVT) was conducted in a 6-month interval after connection. Regress analysis was used to correlate the measures of progression and the age of implantation.
RESULTS: Great variation of the vocabulary development was observed among the 16 implantees from PPVT standardized scores at 1 and 2 years post connection. There was no obvious progression noticed in general. The average standardized score at 12 months post connection was 88.0, while at 24 months was 89.54, no significant was achieved statistically (p＞0.05). Which revealed vocabulary ability progressed along with the use of implants within 2 years post connection. However, the speed of their progresses did not override that of children with normal hearing. The progresses of vocabulary development in the second year post-connection were negatively correlated with the age at implantation (p=0.0094). It means those received implantation at an older age progress less during this period of time. The children were grouped arbitrarily into younger group (implant age ＜3 yr) and elder group (implant age ＞3 yr). The younger group was noticed with increasing speed in progression during the 2nd year period, while the elder group showed regression in progression speed.
CONCLUSION: The result showed cochlear implants benefit congenitally deaf children with implants up to 2 years of follow-up. Age at implantation was negatively correlated to the progress of vocabulary development. It supported that congenitally profound deaf children should be implanted as early as possible in order to develop language in their early childhood, if they could not obtain enough benefit from hearing aids.

並列關鍵字

cochlear implantation ； Peabody Picture Vocabulary Test-Revised ； PPVT ； congenital deafness ； vocabulary development