Experimental Factor Ontology

Last uploaded: January 16, 2025
Id http://purl.obolibrary.org/obo/HP_0002069
http://purl.obolibrary.org/obo/HP_0002069
Preferred Name

Bilateral tonic-clonic seizure

Definitions
A bilateral tonic-clonic seizure is a seizure defined by a tonic (bilateral increased tone, lasting seconds to minutes) and then a clonic (bilateral sustained rhythmic jerking) phase. A tonic-clonic seizure may be generalized from onset or progress from a focal seizure to a bilateral tonic clonic seizure. This term describes the observed semiology of the seizure without specifying whether the onset is focal or generalized. Thus it can be used for coding bilateral tonic-clonic seizures when the onset is not known. This form of seizure was formerly commonly called grand mal seizure.
Synonyms
Bilateral convulsive seizures
Generalized convulsion
Seizures, tonic-clonic
Generalized tonic-clonic seizure (without specification of onset)
Tonic-clonic convulsions
Grand mal seizures
Tonic-clonic convulsion
Generalised convulsion
Generalised tonic-clonic seizure (without specification of onset)
Grand mal
Type http://www.w3.org/2002/07/owl#Class
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