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目的通过对植入人工耳蜗的语后聋成人听力言语感知能力的测评,探讨人工耳蜗对语后聋成人言语康复的作用。方法受试者为14名语后聋成人患者,男性9例,女性5例;耳蜗植入年龄22岁￣67岁,平均46岁;耳聋时间6年-42年,平均16年。在人工耳蜗植入6个月、12个月及24个月时,进行开放性单词和短句言语感知测试。分别在三种模式下进行:只听模式(开放人工耳蜗)、听觉加视觉模式(开放人工耳蜗加唇读)及视觉模式(关闭人工耳蜗只用唇读)。结果在听觉模式及听觉加视觉模式下,患者对单词和句子的正确感知随人工耳蜗使用时间而不断改善。术后6个月,听觉模式下的开放性单词和短句的正确感知率分别是38%和54%;听觉加视觉模式下的开放性单词和短句的正确感知率分别是70%和76%。术后24个月,听觉模式下的开放性单词和短句的正确感知率分别是65%和72%;听觉加视觉模式下的开放性单词和短句的正确感知率分别是84%和88%。结论人工耳蜗植入能显著改善语后聋成人的言语感知能力,并随着人工耳蜗使用时间的增加,言语感知能力逐渐得到提高。
Objective To investigate the effect of cochlear implants on speech rehabilitation of post-deaf adults through evaluation of hearing and speech perception of post-deaf adults with implanted cochlear implants. Methods The subjects were 14 post-deaf adults. There were 9 males and 5 females. The cochlear implants were 22 years old to 67 years old with an average of 46 years old. The deafness time ranged from 6 years to 42 years with an average of 16 years. At cochlear implant 6 months, 12 months and 24 months, open word and phrase verbal tests were performed. They were performed in three modes: listening mode only (open cochlear implant), auditory plus visual mode (open cochlear and lip reading), and visual mode (closed cochlear lip only). Results In auditory mode and auditory plus visual mode, the correct perception of words and sentences by patients was continuously improved with the time spent on cochlear implants. At 6 months after surgery, correct perception rates of open words and phrases in auditory modes were 38% and 54%, respectively. The correct perception rates of open words and phrases in auditory and visual modes were 70% and 76%, respectively %. At 24 months after surgery, the correct perception rates of open words and phrases in auditory mode were 65% and 72% respectively. The correct perception rates of open words and phrases in auditory and visual modes were 84% and 88%, respectively %. Conclusion Cochlear implants can significantly improve speech perception in post-deaf adults, and speech perception ability gradually increases with the increase of cochlear usage time.