Atonic seizure

An atonic seizure is a type of epileptic motor seizure characterized by a sudden, paroxysmal loss or marked diminution of muscle tone without a preceding tonic or myoclonic event Arising from abnormal, synchronous neuronal discharges within the central nervous system, these episodes typically last only one to two seconds and involve the head, trunk, jaw, or limb musculature Clinically, manifestations range from a brief head nod or jaw slackening to abrupt postural collapse, commonly referred to ...

Arising from abnormal, synchronous neuronal discharges within the central nervous system, these episodes typically last only one to two seconds and involve the head, trunk, jaw, or limb musculature

Clinically, manifestations range from a brief head nod or jaw slackening to abrupt postural collapse, commonly referred to as a "drop attack," which carries a high risk of fall-related traumatic injury

While atonic seizures can be focal or generalized in onset, they frequently present in pediatric populations with severe developmental and epileptic encephalopathies, most notably Lennox-Gastaut syndrome

While atonic seizures can be focal or generalized in onset, they frequently present in pediatric populations with severe developmental and epileptic encephalopathies, most notably Lennox-Gastaut syndrome