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An atonic epileptic seizure is a sudden loss of muscle tone in the muscles that hold the body and head upright.
Atonic seizures are fairly uncommon and occur mostly in people with Lennox-Gastaut syndrome. This is a severe form of generalized epilepsy that begins in early childhood. (Children with Lennox-Gastaut syndrome may also have tonic seizures.)
People who have atonic or tonic seizures are likely to be injured when they fall. Children may have to wear helmets and restrict their activities to prevent serious injury.
Current as of: December 13, 2021
Author: Healthwise Staff
John Pope MD - Pediatrics
Adam Husney MD - Family Medicine
Martin J. Gabica MD - Family Medicine
Kathleen Romito MD - Family Medicine
Steven C. Schachter MD - Neurology
To learn more, visit Healthwise.org
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