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Focal seizure

Focal seizures (also called partial seizures[1] and localized seizures) are seizures that affect initially only one hemisphere of the brain.[2][3] The brain is divided into two hemispheres, each consisting of four lobes – the frontal, temporal, parietal and occipital lobes. A focal seizure is generated in and affects just one part of the brain – a whole hemisphere or part of a lobe. Symptoms will vary according to where the seizure occurs. When seizures occur in the frontal lobe, the patient may experience a wave-like sensation in the head. When seizures occur in the temporal lobe, a feeling of déjà vu may be experienced. When seizures are localized to the parietal lobe, a numbness or tingling may occur. With seizures occurring in the occipital lobe, visual disturbances or hallucinations have been reported.[4]

Focal seizure

Partial seizures, localized seizures

Neurology Edit this on Wikidata

preserved consciousness

sudden and inexplicable feelings of fear, anger, sadness, happiness or nausea

sensations of falling or movement

experiencing of unusual feelings or sensations

altered sense of hearing, smelling, tasting, seeing, and tactile perception (sensory or hallucinations), or feeling as though the environment is not real (derealization) or dissociation from the environment or self (depersonalization)

illusions

a sense of spatial distortion—near objects may appear to be distant

(familiarity) or jamais vu (unfamiliarity)

déjà vu

labored speech or inability to speak at all

Treatment[edit]

Most people with focal seizures due to epilepsy require medications to manage the condition. Not all epileptics find that the medications given are effective at preventing seizures; approximately 30% cannot keep their seizures in remission.[21] A newer pharmaceutical approach using immunomodulator drugs in addition to standard medication treatments has been suggested and there is some evidence that this approach may reduce the frequency of focal seizures.[21] It is not clear if this medicine is well tolerated in adults and children.[21]