A seizure occurs when there’s abnormal electrical activity in the brain. Seizures may go virtually unnoticed. Or, in severe cases, they may produce a change or loss of consciousness and involuntary muscle spasms called convulsions. Seizures usually come on suddenly and vary in duration and severity. A seizure may be a one-time event, or you may have seizures repeatedly. Recurrent seizures are called epilepsy, or a seizure disorder. Less than one in 10 people who has a seizure develops epilepsy.
Experts classify seizures into two general categories and many subtypes based on the pattern of the attack.
Taking epilepsydrugs has always been a fact of
life for most people living with epilepsy. And until the 1990s, choosing an
epilepsy drug was comparatively simple: only a handful were available.
In the past 15 years, epilepsy
treatment for controlling seizures has come a long way. The number of
available epilepsy drugs has more than doubled -- improving treatment, but
making decisions more complex. Finding the best epilepsy drug for you, experts
tell WebMD, involves equal parts art and science...
Generalized seizures involve both sides of the brain from the start of the attack. Common subtypes include tonic-clonic (grand mal) and absence seizures (petit mal). Febrile and infantile spasms are two types of generalized seizures that occur almost exclusively in young children.
Partial (or focal) seizures are the second major seizure type. These begin in a specific area of the brain and may be contained there. Or they may spread to the entire brain.
With simple partial seizures, the person remains conscious.