Anormalita nella componente a media latenza dei potenziali evocati somatosensoriali (SEPS) nelle paralisi cerebrali

Short latency SEPs have been previously investigated in neonatal children at high risk for development of cerebral palsy (CP). No survey has been so far performed to analyse SEPs pattern in older children focusing attention to middle latency components. We studied 6 male patients with mean age of 7,6 years affected by CP. All patients underwent MRI and recording of nerve velocity conduction and somatosensory evoked potentials using EEG electrodes caps. Peak and amplitude were evaluated for the components N9, N13, N20, N25, N30 and N37. Statistically analysis was performed to correlate latency and amplitude alterations with age and tallness. Patients affected by CP do not present statistically significative alterations in nerve conduction and latency of cortical response within the parietal component (N20). An important delay in latency of cortical response within the frontal component (N30) has been found, indicating a significative involvement of the sensorimotor part of signal.