Xiulan Ma | PubMed Health

PubMed2005

[The change of the auditory function in children with cochlear implant].

OBJECTIVE: Study the change of the auditory function in children with cochlear implant in different periods. METHOD: This study compared the Nucleus group and the Clarion group in 47 children after cochlear implantation, discussed the auditory change in different periods after surgical procedures and by the Listening Progress Profile (LIP) of Nottingham University. RESULT: The average scores of LIP before the operation and after 3 months, 6 months and 12 months were (8.5 +/- 9.9), (35.0 +/- 8.6), (39.0 +/- 2.4), (40.0 +/- 2.9) in Nucleus group and (5.6 +/- .5), (28.1 +/- 13.4), (34.4 +/- 9.2), (39.8 +/- 3.5) in Clarion group respectively. The improvement of auditory function was significant in the initial 3 months after switch-on but slower from the 3rd to 12th month. CONCLUSION: The testing outcomes of auditory function in both Nucleus group and Clarion group are all close to the full score 1 year after switch-on. The auditory function can be improved in different degrees after the cochlear implantation in children with congenital deafness.

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PubMed2005

[Study on auditory event related potential with cochlear and hearing aid meanwhile].

OBJECTIVE: Study the changes of auditory event related potential (ERP), as well as evaluate objectively auditory effect of both ears, when cochlea implant and hearing aid are applied meanwhile. METHOD: Put 6 samples into 2 different groups: CI&HA (cochlea implant and hearing aid meanwhile) group and CI (cochlea implant only) group. Test the latent periods of P300, N200, N100, and the amplitude of P300, which are the main parts of ERP. RESULT: All of the latent periods of P300 and N200 in CI& HA group were shorter, compared with those in CI group respectively. The difference was significant. In CI&HA group, the average latent period of P300 was (388.96 +/- 62.61) ms, the average amplitude was (13.69 +/- 3. 26) microV, the average latent period of N200 was (267.00 +/- 45.43) ms, the average latent period of N100 was (94.58 +/- 9.10) ms. In CI group, the average latent period of P300 was (412.08 +/- 54.32)ms, the average amplitude was (12.23 +/- 2.97) microV, the average latent period of N200 was (289.21 +/- 37.40) ms, the average latent period of N100 was (99.381+/- 13.15) ms. CONCLUSION: When both ears use cochlear and hearing aid meanwhile, which are under different working patterns; the central progress has no resistance. Thus, auditory effect could be obtained in both ears.

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