Symptoms of Dravet Syndrome
Seizures are classified into three major types depending on the part of the brain they affect: focal onset or partial seizures, generalized seizures, and unknown onset seizures. Focal onset seizures start on one side of the brain while generalized seizures affect both sides of the brain simultaneously. In unknown onset seizures, the location in the brain where the seizure starts is not known.
Status epilepticus is a term that describes epileptic episodes in which either an individual seizure lasts longer than five minutes, or many seizures occur close together without the patient recovering between them. Status epilepticus is common in Dravet syndrome.
Sudden Unexpected Death in Epilepsy
Patients with epilepsy may sometimes die during or after a seizure for no apparent reason. This phenomenon is known as sudden unexpected death in epilepsy (SUDEP). The risk of SUDEP in Dravet syndrome patients is higher than those with other types of childhood-onset epilepsy.