A disorder characterized by the onset of myoclonus in adolescence, a marked increase in the incidence of absence seizures (see EPILEPSY, ABSENCE), and generalized major motor seizures (see EPILEPSY, TONIC-CLONIC). The myoclonic episodes tend to occur shortly after awakening. Seizures tend to be aggravated by sleep deprivation and alcohol consumption. Hereditary and sporadic forms have been identified. (From Adams et al., Principles of Neurology, 6th ed, p323)
Also Known As:
Myoclonic Epilepsy, Juvenile; Adolescent Myoclonic Epilepsy; Epilepsy, Myoclonic Juvenile; Impulsive Petit Mal Epilepsy; JME (Juvenile Myoclonic Epilepsy); Janz Impulsive Petit Mal; Janz Juvenile Myoclonic Epilepsy; Juvenile Myoclonic Epilepsy of Janz; Myoclonic Epilepsy, Adolescent; Myoclonic Epilepsy, Juvenile, 1; Petit Mal, Impulsive; Petit Mal, Impulsive, Janz; Epilepsy, Adolescent Myoclonic; Epilepsy, Juvenile Myoclonic; JMEs (Juvenile Myoclonic Epilepsy); Juvenile Epilepsy, Myoclonic; Myoclonic Juvenile Epilepsy; Epilepsy, Myoclonic, Juvenile; Impulsive Petit Mal, Janz; Janz Syndrome