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《Journal of Clinical Otorhinolaryngology》 2005-13
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Comparing the characteristics of psychophysical tests between cochlear implant children with large vestibular aqueduct syndrome and normal inner ear

CHEN Xueqing1 HAN Demin1 ZHAO Xiaotian2 LIU Bo1 LIU Sha1 MO Lingyan1 ZHENG Jun2 LI Yongxin2 KONG Ying1 WANG Shuo1 WU Yanjun1 (1Department of Speech and Hearing Rehabilitation, Beijing Institute of Otolaryngology, Affiliated Beijing Tongren Hospital of Capital University of Medical Sciences, Beijing,100005,China;2Department of Otolaryngology, Affiliated Beijing Tongren Hospital of Capital University of Medical Sciences)  
Objective:The purpose of this study is to compare the characteristics of psychophysical tests between cochlear implant children with large vestibular aqueduct syndrome and normal inner ear and to analyse the characteristics of psychophysical and impedance tests for cochlear implant patients with large vestibular aqueduct syndrome.Method:One hundred and thirty-one cochlear implant pre-lingual deafness patients participated in this study. They received cochlear implant surgery at the age of 1.5 to 12 years old from Nov, 1998 to Aug, 2003. The patients were divided into two groups. Group A had 111 patients with normal inner ear.Group B had 20 patients with radiographically proven large vestibular aqueduct syndrome. All of the patients were inserted with Nucleus 24M. The time of the first programming session was approximately 4 weeks after surgery. The psychophysical tests included T and C-Level tests. The programming techniques used in the test were suitable for the age of the patients. The R116 and R126 software were used to test the impedance of the electrodes automatically.Result:Using the independent-samples t-test, the impedance and T/C-Level of each electrode did not differ significantly between group A and B (P0.05). The impedance and T/C-Level were not significantly different between group A and B at the time of switch-on, 1 week, 2 weeks, 3 weeks, 2 months, 3 months,6 months,9 months and 1 year after switch-on (P0.05).Conclusion:The parameters of mapping were not significantly different between cochlear implant children with large vestibular aqueduct syndrome and normal inner ear.The management and procedure of mapping used in cochlear implant children with normal inner ear can be used in the children with large vestibular aqueduct syndrome.
【CateGory Index】: R764
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