Nerve electroneurography variability in normal Egyptian volunteers

ABSTRACT

The aim of this work was to reproduce the published data on the right/left difference in normal test persons and to determine whether the amplitude ratio is constant overtime after repeated measurements. Bilateral electroneurography [EnoG] was conducted on 50 normal Egyptian volunteers. Four measurements were performed at one week intervals on every subject. The results indicated that the mean amplitude ratio was 11% +/- 6%. Repeated measurements on the same individual differed from 0%-29%. The 99% confidence interval computed from the data ranged from 9%-13% amplitude ratio