The Influence of Anthropomorphologic Parameters on the Properties of Somatosensory Evoked Potentials of the Median Nerve

Somatosensory evoked potentials have been used in paediatrics in Slovenia for many years. In our study we measured the somatosensory evoked potentials on stimulation of the median nerve. The normal values for latencies and amplitudes of the main peaks were set in comparison to body height or/and age. The measurements were made on 24 neurologically free children, aged 2 to 14 years. Latencies and amplitudes of the peaks N9, N13, N14 and N19 were defined and interpeak laten­cies N9–N13 and N13–N19 were calculated. Our results show that amplitudes do not corre­late with body height. Latencies of all the men­tioned peaks and interpeak latency N9–N13 do grow with body height. Interpeak latency N13–N19 however does not change significant­ly with body height after the age of 3 years. The correlations are showed in the charts including limits of the normal values.