Objective To analyze the characteristics of cervical vestibular evoked myogenic potential of children with profound sensorineural hearing loss

and to investigate the application value of VEMP technology in evaluating the otolithic function for children with profound SNHL before and after the intervention. Method 28 28 children（56 ears） aged 2-8 years old with profound SNHL were included as subjects experimental group in this study

all of them were using the bimodel intervention

one side was fitting with the hearing aid（Hearing Aid

HA group）

and the other side was implanted CI（Cochlear Implant

CI group）

meanwhile we selected 6 children participants（aggregating 12 ears） aged from 2-6 years old with severe-profound SNHL

who only wear hearing aids and with normal level imageological examination as control group

the tympanometer of all participants were type A for both of ears

We made the measurement of cervical vestibular evoked myogenic potential for both side of ears

and obtained the results information of detectable rate

latency of P1 and N1 and amplitude of P1-N1

and compared with the cVEMP of children of control group. Result（1） For the detectable rate of cVEMP: the Control group was 100%; HA group was 67.8% and 32.20% abnormality; CI group was 39.30% and 60.70% abnormality.（2） In all results of the detectable cVEMP

we analyzed the latency of P1 and N1 and amplitude of P1-N1

the averaged values of them for control group were 12.26 ms

18.33 ms and 92.02 uV; CI group 14.00 ms

19.06 ms and 88.81 uV; HA group 12.84 ms

18.83 ms and 114.80 uV

ANOVA analysis was performed on three groups of three evaluation indexes

and the results showed that there was significant difference between the three groups in the latency of P1（P=0.000）

and there was no significant difference in the latency of N1 and the amplitude of P1-N1 wave（P=0.248 and P=0.234）. Conclusion Children with profound SNHL（Sensorineural Hearing Loss

SNHL） have a higher rate of otolithic dysfunction for both the CI side and the hearing aid side. cVEMP is a simple and quick objective evaluation technique to detect the otolithic function

which can provide the objective evidences for vestibular rehabilitation before or during the speech rehabilitation.