Objective

2

To investigate the range of normal reference values of cervical vestibular evoked myogenic potentials in different age groups.

Methods

2

Sixty healthy volunteers were divided into children group and adult group

and the cervical vestibular myogenic potential was tested by Eclipse objective auditory test platform of WDH Group

and the data were analyzed statistically.

Results

2

Statistical results showed that there were no significant differences in P1 latency

Nl latency

P1-N1 wave interval

amplitude and asymmetry ratio between the left and right sides of the two groups. There were no significant differences in P1 latency

Nl latency

P1-N1 wave interval

amplitude and asymmetry ratio between the male and female groups. In the children group

the normal range of P1 and N1 was 13.97±1.46 ms

21.82±1.85 ms

the normal range of amplitude was 100.71±91.17 μV

and the normal range of wave interval was 7.85±1.12 ms. In the adult group

the normal range of P1 and N1 was 16.11±2.23 ms

24.66±2.35 ms

the normal range of amplitude was 61.26±27.74 μV and and the normal range of wave interval was 8.58±1.48 ms. There were significant differences in P1 latency

Nl latency

P1-N1 interval and amplitude between the two groups

but no significant differences in asymmetry ratio.

Conclusion

2

The waveform and parameters of cervical vestibular myogenic potential have no correlation with left or right side and gender. The latency and interphase of cervical vestibular evoked myogenic potentials increase with age

while the amplitude decreases with age.