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What kind of epilepsy involves several types of seizures?

Lennox-Gastaut syndrome, also known as Lennox syndrome, is difficult to treat and involves several types of seizures, as well as mental disability. This severe form of epilepsy typically is present for life and seizures usually being before the age of 4.

Juvenile myoclonic epilepsy, which is one of the common benign idiopathic generalized epilepsy syndromes, may involve myoclonic and generalized tonic-clonic seizure types. The former is present in 100% of patients and may be the only type of seizure in a small percentage of patients, while the latter occurs in 90% of patients. Both seizure types occur shortly after awakening. Absence seizures could also occur, but less frequently (35% of patients) and consist of a staring spell accompanied by the loss of awareness.

Juvenile absence epilepsy may include both generalized tonic-clonic seizures in addition to absence seizures.

Lennox-Gastaut syndrome includes tonic, atonic and atypical absence seizures. In addition myoclonic, generalized tonic-clonic and partial seizures may be present. Mental retardation is a characteristic feature. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.