What is lennox-gastaut syndrome? The lennox-gastaut syndrome (lgs) is a type of epilepsy with multiple different types of seizures, particularly tonic (stiffening) and atonic (drop) seizures. The lennoxâ€gastaut syndrome (lgs) foundation, based in san diego, california, is dedicated to improving the lives of those impacted by lgs through advancing research, awareness, education, …

Lennox-gastaut syndrome (lgs) is a severe form of epilepsy. Lgs usually begins in the preschool years. However, it can start later in childhood.