Abstract
Cortical and spinal somatosensory evoked potentials (SEPs) have been recorded after median and tibial nerve stimulation in healthy newborns. Spinal SEPs were readily obtained and recorded in all but one neonates after stimulation of both nerves. Cortical SEPs were more frequently recorded after median nerve (87%) than after tibial nerve stimulation (73%) but the shape of cortical SEPs obtained after tibial nerve stimulation was less variable. The mean feature of cortical SEPs was a negative wave (N27) for median nerve and a positive wave (P32) for tibial nerve. The present results demonstrate the feasibility of obtaining in the same baby, spinal and cortical SEPs after stimulation of median and tibial nerve, giving information on the functional integrity of central and peripheral somatosensory pathways which supply upper and lower limbs.
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