Huang Ming-Wei, Hsu Chuan-Jen, Kuan Chen-Chieh, Chang Wei-Hsiu
Department of Otolaryngology, Taipei Hospital, Department of Health, The Executive Yuan, Taipei, Taiwan.
Int J Pediatr Otorhinolaryngol. 2011 May;75(5):700-3. doi: 10.1016/j.ijporl.2011.02.019. Epub 2011 Mar 21.
This study aimed to assess the static balance function in deaf adolescents with cochlear implants.
We included 24 adolescents who had received unilateral cochlear implantation for at least 5 years. Each subject underwent stabilometry testing under 4 different conditions: (A) firm surface with eyes open; (B) firm surface with eyes closed; (C) foam pad with eyes open; and (D) foam pad with eyes closed. All of them received tests with their cochlear implant turned on and off. Another 24 age- and sex-matched adolescents with normal hearing were tested in the same way for comparison. Sway velocity and circular area were measured and analyzed.
The mean sway velocity of the cochlear implant group under conditions A-D was 1.68, 1.98, 2.36, and 5.25 cm/s, respectively, and the mean circular area of the cochlear implant group under conditions A-D was 7.39, 6.68, 12.21, and 34.27 cm(2), respectively. Both of the parameters showed statistical significance between the cochlear implant group and the normal hearing group for conditions A, C and D (p<0.05). Furthermore, there was no significant balance function change among cochlear implant group with their implant "on" and "off".
This study showed that the static balance function in adolescents with long-term use of cochlear implants was worse than those of normal hearing peers. The difference between the cochlear implant group and normal hearing group was the highest when both visual and somatosensory inputs were disrupted. The postural stability was similar whether or not the cochlear implant was activated.
本研究旨在评估接受人工耳蜗植入的聋青少年的静态平衡功能。
我们纳入了24名接受单侧人工耳蜗植入至少5年的青少年。每位受试者在4种不同条件下进行了姿势稳定测试：（A）睁眼在坚实表面；（B）闭眼在坚实表面；（C）睁眼在泡沫垫上；（D）闭眼在泡沫垫上。所有受试者在人工耳蜗开机和关机状态下均接受测试。另外选取24名年龄和性别匹配的听力正常的青少年以同样方式进行测试作为对照。测量并分析摆动速度和圆面积。
人工耳蜗植入组在条件A - D下的平均摆动速度分别为1.68、1.98、2.36和5.25 cm/s，人工耳蜗植入组在条件A - D下的平均圆面积分别为7.39、6.68、12.21和34.27 cm²²。在条件A、C和D下，这两个参数在人工耳蜗植入组和听力正常组之间均显示出统计学意义（p<0.05）。此外，人工耳蜗植入组在开机和关机状态下的平衡功能无显著变化。
本研究表明，长期使用人工耳蜗的青少年的静态平衡功能比听力正常的同龄人差。当视觉和躯体感觉输入均被干扰时，人工耳蜗植入组与听力正常组之间的差异最大。人工耳蜗是否激活，姿势稳定性相似。
