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 epilepsy

Neurology 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
References in periodicals archive ?
Patients in this study included those with juvenile myoclonic epilepsy, juvenile absence epilepsy or with generalized tonic-clonic seizures on awakening.