Skip to main content

Table 3 SSEP and EEG findings in epileptic and non-epileptic myoclonus

From: Electrophysiological characteristics and anatomical differentiation of epileptic and non-epileptic myoclonus

  Epileptic myoclonus (N = 29) Non-epileptic (N = 21) P value
Age 32.76 ± 11.96 48.33 ± 16.08  < 0.001*
Sex
 Male 11 12 0.179
 Female 18 9
Right median nerve
 N20 amplitude 1.99 ± .68 1.87 ± .75 0.590
 N20 latency 23.24 ± .17 23.26 ± .14 0.792
 P24 amplitude 8.95 ± 17.98 7.34 ± 1.86 0.687
 N24 latency 25.08 ± .39 25.07 ± .61 0.924
 N33 amplitude 10.77 ± 20.21 9.11 ± 2.05 0.664
 N33 latency 33.86 ± .27 34.11 ± .57 0.070
 P24–N33 complex amp 19.72 ± 38.16 16.50 ± 3.68 0.655
Left median nerve
 N20 amplitude 1.97 ± .73 1.92 ± .73 0.835
 N20 latency 23.20 ± .13 23.26 ± .13 0.106
 P24 amplitude 8.56 ± 15.07 7.60 ± 2.11 0.739
 P24 latency 25.14 ± .53 24.88 ± .25 0.105
 N33 amplitude 10.75 ± 17.78 9.37 ± 2.42 0.681
 N33 latency 33.97 ± .49 33.96 ± .53 0.977
 P24–N33 complex amp 19.33 ± 32.84 16.97 ± 4.46 0.705
EEG findings
 Spike/polyspike wave complex 22 8 0.007*
 Normal 7 13