Myoclonic epilepsy in an HIV positive patient: neurophysiological findings.
An HIV-positive patient is described who presented with action myoclonus. Unusually, focal sinusoidal EEG burst complexes with a frequency of 40 and 55 Hz could be recorded over the sensorimotor cortex. Activity having a similar frequency was evoked in this area by posterior tibial nerve stimulation in the affected leg, and jerk-locked averaging showed that myoclonic jerks were preceded by similar cortical sinusoidal waves.
Department of Neurology, The Middlesex Hospital, London, U.K.
R
R
Kapoor
G
G
Griffin
G
G
Barrett
C J
CJ
Fowler
D000163:Acquired Immunodeficiency Syndrome / Q000150:complications* / Q000000981:diagnostic imaging; D000328:Adult; D004558:Electric Stimulation; D004569:Electroencephalography; D004831:Epilepsies, Myoclonic / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D006801:Humans; D008297:Male; D011930:Reaction Time; D013979:Tibial Nerve / Q000502:physiology; D014057:Tomography, X-Ray Computed