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Status epilepticus (SE), or status seizure, is a medical condition with abnormally prolonged seizures. It can have long-term consequences, [ 3 ] manifesting as a single seizure lasting more than a defined time (time point 1), or 2 or more seizures over the same period without the person returning to normal between them.
Generalized tonic–clonic seizures can have a focal onset (described above) that progresses into a generalized seizure or be a generalized seizure at onset. The term "Grand Mal" is nonspecific, referring to generalized tonic–clonic seizures with either a focal or generalized onset. Due to this lack of specificity in describing the onset of a ...
Tonic-clonic seizures occur with a contraction of the limbs followed by their extension and arching of the back which lasts 10–30 seconds (the tonic phase). A cry may be heard due to contraction of the chest muscles, followed by a shaking of the limbs in unison (clonic phase). Tonic seizures produce constant contractions of the muscles.
A familial history of seizures puts a person at a greater risk of developing them. [12] [13] Generalized seizures have been broadly classified into two categories: motor and non-motor. [8] A generalized tonic-clonic seizure (GTCS), also known as a grand mal seizure, is a whole-body seizure that has a tonic phase followed by clonic muscle ...
A seizure is a sudden change in behavior, movement or consciousness due to abnormal electrical activity in the brain. [3] [6] Seizures can look different in different people. It can be uncontrolled shaking of the whole body (tonic-clonic seizures) or a person spacing out for a few seconds (absence seizures).
A seizure is a paroxysmal episode of symptoms or altered behavior arising from abnormal excessive or synchronous brain neuronal activity. [5] A focal onset seizure arises from a biological neural network within one cerebral hemisphere, while a generalized onset seizure arises from within the cerebral hemispheres rapidly involving both hemispheres.
Most frequently the seizure is focal tonic and involves the head, face, and limbs. [1] Focal tonic seizures are defined as sustained flexion or extension of muscle groups. [2] Focal clonic seizures can also occur, which are defined as rhythmic movements of muscle groups. [2] Seizures can alternate sides and progress to bilateral tonic seizures.
Juvenile Myoclonic Epilepsy (JME), also referred to as Janz Syndrome and Impulsive Petit Mal, is a form of epilepsy that is characterized by absence, Myoclonic, and Generalized Tonic-Clonic Seizures. This epilepsy variant is marked by its idiopathic and hereditary characteristics, as well as its generalization across seizures.