Short-latency median nerve somatosensory evoked potentials in three cases of parkinsonism and dopa responsive dystonia.
We studied somatosensory evoked potentials after median nerve stimulation in a sporadic case of dopa responsive dystonia and in two brothers with different combinations of dystonia and parkinsonism. The latencies of all potentials were normal. The amplitude of the P20-N30 frontal complex showed a significant reduction in all cases. Our results suggest a common neurophysiopathological pattern underlying these two conditions.
Margari
L
L
Institute of Neurology, University of Bari, Italy.
de Mari
M
M
Lamberti
P
P
Iliceto
G
G
Serlenga
L
L
Perniola
T
T
Rossini
P M
PM
Ferrari
E
E
D000328:Adult; D017668:Age of Onset; D000978:Antiparkinson Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D001479:Basal Ganglia / Q000503:physiopathology; D004295:Dihydroxyphenylalanine / Q000008:administration & dosage / Q000627:therapeutic use*; D004421:Dystonia / Q000188:drug therapy* / Q000209:etiology; D004558:Electric Stimulation; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006801:Humans; D008297:Male; D008475:Median Nerve / Q000503:physiopathology*; D008875:Middle Aged; D009044:Motor Cortex / Q000503:physiopathology; D010300:Parkinson Disease / Q000503:physiopathology*
D000978:Antiparkinson Agents; D004295:Dihydroxyphenylalanine