All seizures are caused by abnormal electrical disturbances in the brain. Partial (focal) seizures occur when this electrical activity remains in a limited area of the brain. The seizures may sometimes turn into generalized seizures, which affect the whole brain. This is called secondary generalization.
Partial seizures can be further characterized as:
For more information, see:
Patients with focal seizures can have any of the symptoms below, depending on where in the brain the seizure starts.
Patients with simple focal seizures do not lose consciousness. They will be aware of and remember the events that occur at the time.
Patients with complex partial seizures may or may not remember any or all of the symptoms or events during the seizure.
Other symptoms include:
Epilepsy Foundation of America -- www.epilepsyfoundation.org
Focal seizure; Jacksonian seizure; Seizure - partial (focal); Temporal lobe seizure
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Updated by: Luc Jasmin, MD, PhD, Department of Neurosurgery at Cedars-Sinai Medical Center, Los Angeles, and Department of Anatomy at UCSF, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Health Solutions, Ebix, Inc.
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