Objective To report the pattern of auditory-verbal changes after cochlear implantation(CI)in children with sensorineural hearing loss(SNHL)and influencing factors.Methods Children with SSNHL who underwent unilat-eral CI in our hospital from January 2018 to June 2021(n=171)were selected.The spline function was fitted to the tra-jectory of postoperative auditory ability at 24 months using the Rsoftware.Multivariate linear mixed regression models were used to dynamically analyze covariates affecting auditory ability development.Multifactorial Cox modeling was used to clarify the association between age and auditory development.Sensitivity tests were performed using the E-val-ue method.Age and verbal communication correlations were analyzed by Spearman's rank correlation.Results The tra-jectory of prespeech auditory recovery in children after CI implantation was Y=16.14+10.89X-0.54X2+0.01X3(0≤X≤24).The pre-CI implantation covariates were hearing thresholds,speech imitation ability and use of hearing aids.The post-CI implantation covariates were speech imitation and postoperative use of hearing aids at 6 to 12 months,and post-operative use of hearing aids and time of speech training at 24 months.After adjustment for Cox modeling,there was a significant negative association between age at implantation and auditory development(HR=2.07,95％CI:1.81-2.30).Between 3 and 24 months after CI implantation,active communication skills and auditory attention gradually improved and were negatively correlated with age.Conclusion The earlier the age of CI implantation,the better the postoperative auditory and speech development for children with SNHL.Early detection and intervention are important to improve post-CI hearing recovery and language development in children.
sensorineural hearing losscochlear implantationhearing abilityspeech communication
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