Grand Mal now Tonic Clonic

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valeriedl

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Why are Grand Mal seizures now called Tonic Clonic?
 
I think people still do use the term Grand Mal, but Generalized Tonic-Clonic is a more technically accurate term. Grand Mal loosely means "Big Sickness", whereas Generalized Tonic-Clonic actually describes what happens during the seizure: a seizure that has generalized (i.e. spread to the whole brain, resulting in loss of consciousness) that is comprised of a tonic (tense) phase, followed by a clonic (convulsive) phase.

For the same reason, petit mal (Little Sickness) seizures are now called Absence Seizures.

But the system of naming seizures is less than simple, and continues to evolve. Currently, classification is more or less based on five variables:
1. The primary cause. ("encephalopathic epilepsy")
2. The apparent, observable symptoms. ("tonic-clonic")
3. The location in the brain where the seizures originate. ("temporal lobe epilepsy")
4. As a part of a specific medical syndrome. ("Juvenile myoclonic epilepsy")
5. The event that triggers the seizures. ("photosensitive epilepsy, catamenial epilepsy")
 
Plus, IMO, Tonic-Clonic sounds better. When I've had TC's, I now tell folks that the term "grand mal" is no longer used in medicine, at least here in the U.S.
 
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