Speech perception after cochlear implantation over a 4-year time period
Speech perception after cochlear implantation over a 4-year time period
复制标题
DOI：
10.1080/0036554021000028111
复制
发表时间：
2003-01-01
影响因子：
1.4
通讯作者：
Koo, JW
中科院分区：
文献类型：
--
作者：
Oh, SH;Kim, CS;Koo, JW
目的——评估人工耳蜗植入者的长期言语感知，并比较语前儿童和语后聋成人的听觉表现模式。 材料和方法——本研究纳入了随访 4 年的 29 名语前聋儿童和 17 名语后聋成人。言语感知能力通过元音和辅音混淆测试以及韩国中央耳聋研究所 (K-CID) 测试（在没有视觉提示的情况下进行）进行评估。植入后 3 个月和 6 个月对测试结果进行分析，然后每年进行一次分析。 结果 - 在语前聋儿中，平均结果在 4 年期间持续改善。在语后聋成人中，头两年后平均结果没有进一步改善。耳聋<5年的人比耳聋>5年的人言语感知的恢复速度更快。语前聋组的 K-CID 评分与着床年龄呈负相关，而语后聋组则与耳聋持续时间呈负相关。年龄较小时植入植入物的儿童比年龄较大时植入植入物的儿童表现出更好的言语感知能力。有趣的是，植入时 5-7 岁的语前聋儿童的个体结果差异最大。在这组结果差异很大的儿童中，通过 F-18-氟脱氧葡萄糖正电子发射断层扫描 (FDG-PET) 测定了三名患者的脑皮质代谢状态。代谢低下区域最宽的个体具有最好的言语感知能力。结论——FDG-PET评估的代谢低下程度似乎是预测人工耳蜗植入结果的主要因素之一。
Objective-To evaluate the long-term speech perception of cochlear implantees and to compare the developing auditory performance patterns of prelingual children and postlingual deaf adults.Material and Methods-Twenty-nine prelingually deaf children and 17 postlingually deaf adults who had been followed up for 4 years were included in the study. Speech perception ability was assessed by means of vowel and consonant confusion tests and the Korean version of the Central Institute of Deafness (K-CID) test (performed without visual cues). The test results were analyzed at 3 and 6 months after implantation and then annually.Results-In the prelingually deaf children, the average results continuously improved over the 4-year period. In the postlingually deaf adults, the average results did not improve further after the first 2 years. Individuals with < 5 years of deafness had a faster rate of recovery of speech perception than those who had been deaf for > 5 years. The K-CID scores were negatively correlated with age at implantation for the prelingually deaf group and with the duration of deafness in the postlingually deaf group. Children fitted with implants at a younger age showed better speech perception ability than those fitted with implants at an older age. Interestingly, prelingually deaf children aged 5-7 years at implantation showed the widest variation in individual outcomes. Amongst this group of children with highly variable outcomes, the metabolic status of brain cortices determined by means of F-18-fluorodeoxyglucose positron emission tomography (FDG-PET) was available for three patients. The individual with the widest hypometabolic area had the best speech perception ability.Conclusion-The extent of hypometabolism as assessed by FDG-PET seemed to be one of the major factors predicting the outcome of cochlear implantation.