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generalized tonic-clonic seizure


Definition: a generalized seizure characterized by the sudden onset of tonic contraction of the muscles often associated with a cry or moan, and frequently resulting in a fall to the ground. The tonic phase of the seizure gradually give way to clonic convulsive movements occurring bilaterally and synchronously before slowing and eventually stopping, followed by a variable period of unconsciousness and gradual recovery.

Synonym(s): cryptogenic epilepsy, generalized tonic-clonic epilepsy, grand mal seizure, grand mal, idiopathic epilepsy2, major epilepsy

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.