Assessment Study In Auditory Threshold On Deafened Children With Cochlear Implantation In Sound Field

Objective: Using sound field to study effects in auditory threshold ondeafened children with cochlear implantation.Methods: The auditory threshold of deafened children with cochlear imp-lantation of48patients with33male,15female were detected by soud fi-eld,including250Hz and500Hz and1000Hz and2000Hz and4000HzAll the data were analyzed by statistics software SPSS16.0. Normal distr-ibution measurement data were shown as means±standard deviation（X±S）. Independent-Sample T Test was applied when we compared the Pati-ents who are different groups.Results: Deafened children with CI who are≤3years old250Hzauditory threshold （29.38±9.24） dB；500Hz auditory threshold（28.33±7.02）dB；1000Hz auditory threshold（37.29±7.22）dB；2000Hz auditory threshold（49.38±5.38）dB were lower than those3-6yearsold group auditory threshold｛（39.58±11.60）dB、（37.71±6.59）dB、（43.96±8.34）dB、（55.21±6.16）dB｝.4000Hz auditory threshold werenot differrent。Deafened children with CI who are normal inner ear250Hz auditory threshold（34.5±10.39）dB；500Hz auditory threshold（42.00±10.33）dB；2000Hz auditory threshold（59.50±8.64）dB；4000 Hz auditory threshold（69.50±4.97）dB than those who are large vestibularaqueduct syndrome(LVAS)｛（35.00±5.27）dB、（50.50±10.66）dB、（62.50±7.55）dB、（73.00±6.75）dB｝did not differ significantly.Deafened children with CI who are normal inner ear1000Hz auditorythreshold （51.00±6.99） dB was lower than those who are LVAS（62.00±8.88）dB.Conclusion: Auditory threshold of deafened children with cochlearimplantation in sound field is used to effect evaluation which is feasible.Itis shown a significance for clinical guidance to auditory threshold andspeech rehabilitation training of Deafened children with CI.