title: Visual and somatosensory evoked cortical potentials in multiple sclerosis.
abstract: The diagnostic value of the pattern reversal evoked cortical potential (VEP) and the somatosensory evoked cortical potential (SEP) has been compared in 50 patients with established or suspected multiple sclerosis. A prolonged latency of VEP was found in 96% of definite cases of multiple sclerosis, 58% of probable cases, and 20% of possible cases. A prolonged latency of SEP by stimulation of median or peroneal nerves or both was found in 86% of definite cases of multiple sclerosis, 83% of probable cases, and 50% of possibe cases. When combining the results of all three tests the diagnostic yield increased to 100%, 92%, and 50%, respectively.
mesh_terms: D000328:Adult; D005071:Evoked Potentials; D006801:Humans; D008475:Median Nerve / Q000503:physiopathology; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis*; D010543:Peroneal Nerve / Q000503:physiopathology; D011930:Reaction Time / Q000502:physiology; D013003:Somatosensory Cortex / Q000503:physiopathology*; D014793:Visual Cortex / Q000503:physiopathology*