juvenile myoclonic epilepsy(redirected from Myoclonic epilepsy, juvenile)
ju·ve·nile my·o·clon·ic ep·i·lep·sy[MIM*606904]
an epilepsy syndrome typically beginning in early adolescence, and characterized by early morning myoclonic jerks that may progress into a generalized tonic-clonic seizure. A genetic disorder: some families have had gene linkage to chromosome-6. The EEG is characterized by generalized polyspike and wave discharges at 4-6 Hz.
juvenile myoclonic epilepsyNeurology A seizure disorder that comprises ± 4% of seizure disorders Clinical Normal IQ, onset in adolescence, affecting the flexor muscles of the head, neck and shoulders; the attacks tend to occur as clonic-tonic-clonic seizures upon awakening EEG 4-6 Hz multispike and wave pattern; 40% of relatives, especially ♀, have myoclonus Management Valproic acid. See Epilepsy.
ju·ve·nile my·o·clon·ic ep·i·lep·sy(jū'vĕ-nil mī'ō-klon'ik ep'i-lep'sē)
An inherited epilepsy syndrome typically beginning in early adolescence, and characterized by early morning myoclonic jerks that may progress into a generalized tonic-clonic seizure.
juvenile myoclonic epilepsy
A form of epilepsy typically noticed in teenagers, characterized by early morning jerking movements of the extremities, and during stress or sleep deprivation, generalized tonic/clonic or absence seizures.Synonym: Janz syndrome.
See also: epilepsy