Partial (focal) seizure

Alternative Names

Focal seizure; Jacksonian seizure; Seizure – partial (focal); Temporal lobe seizure

Definition of Partial (focal) seizure

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.

Symptoms

Patients with focal seizures can have any of the symptoms below, depending on where in the brain the seizure starts.

Review

Linda Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; Luc Jasmin, MD, PhD, Department of Neurosurgery at Cedars-Sinai Medical Center, Los Angeles, CA, 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., Inc. – 1/23/2010

Central nervous system

ADAM Medical Encyclopedia

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