Decrease (-) Restore Default Increase (+)
Bookmark and Share

Health Library

Multimedia Health Encyclopedia - Diseases

Search Health Information   
 

Partial (focal) seizure

Definition

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 can sometimes turn into generalized seizures, which affect the whole brain. This is called secondary generalization.

Partial seizures can be further characterized as:

  • Simple -- not affecting awareness or memory
  • Complex -- affecting awareness or memory of events before, during, and immediately after the seizure, and affecting behavior

Alternative Names

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

Symptoms

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.

Symptoms can include:

  • Abnormal muscle contraction
    • Muscle contraction/relaxation (clonic activity) -- common
    • Affects one side of the body (leg, part of the face, or other area)
    • Abnormal head movements
    • Forced turning of the head
  • Staring spells, with or without complex, repetitive movements (such as picking at clothes) -- these are called automatisms and include:
    • Abnormal mouth movements
    • Lip smacking
    • Behaviors that seem to be a habit
    • Chewing/swallowing without cause
  • Forced turning of the eyes
  • Abnormal sensations
    • Numbness, tingling, crawling sensation (like ants crawling on the skin)
    • May occur in only one part of the body, or may spread
    • May occur with or without motor symptoms
  • Hallucinations
  • Abdominal pain or discomfort
  • Nausea
  • Sweating
  • Flushed face
  • Dilated pupils
  • Rapid heart rate/pulse

Other symptoms include:

References

Abou-Khalil BW, Gallagher MJ, Macdonald RL. Epilepsies. In: Daroff RB, Fenichel GM, Jankovic J, Mazziotta JC. Bradley’s Neurology in Clinical Practice. 6th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 67.


Review Date: 2/27/2013
Reviewed By: Luc Jasmin, MD, PhD, Department of Neurosurgery, Cedars Sinai Medical Center, Los Angeles and Department of Anatomy, University of California, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, Bethanne Black, Stephanie Slon, and Nissi Wang.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
 

Medical Care

Cancer
Pregnancy & Prenatal Classes
Weight Loss
Orthopedics
Heart Disease
Neurology
Women's Health
More Medical Care

Locations

Hospitals
Immediate Care
Health Centers
Emergency Room
Doctors Offices
Specialists
Affiliate Hospitals

Patients and Visitors

MyChart
Pay Your Bill
Request an Appointment
Get Healthy
Support Groups
Fitness Groups
Mobile Applications
Clinical Trials
Online Nursery
Classes and Events
Send an eCard
Patient Stories
Places to Stay

About Us

Quality Report 
Careers
Ways to Help
Community Outreach
Contact Us
(502) 629-1234

Connect with us

© 2014 Norton Healthcare
Serving Kentucky and Southern Indiana