Metabolic Abnormalities in Children With Epilepsy

This study has been completed.
Information provided by:
National Institutes of Health Clinical Center (CC) Identifier:
First received: November 3, 1999
Last updated: March 3, 2008
Last verified: June 2004

This study is designed to use positron emission tomography to measure brain energy use. Positron Emission Tomography (PET) is a technique used to investigate the functional activity of the brain. The PET technique allows doctors to study the normal processes of the brain (central nervous system) of normal individuals and patients with neurologic illnesses without physical / structural damage to the brain.

When a region of the brain is active, it uses more fuel in the form of oxygen and sugar (glucose). As the brain uses more fuel it produces more waste products, carbon dioxide and water. Blood carries fuel to the brain and waste products away from the brain. As brain activity increases blood flow to and from the area of activity increases also.

Researchers can label a sugar with a small radioactive molecule called FDG (fluorodeoxyglucose). As areas of the brain use more sugar the PET scan will detect the FDG and show the areas of the brain that are active. By using this technique researchers hope to answer the following questions;

4. Are changes in brain energy use (metabolism) present early in the course of epilepsy

5. Do changes in brain metabolism match the severity of patient's seizures

6. Do changes in metabolism occur over time or in response to drug therapy

Condition Intervention
Generalized Epilepsy
Infantile Spasms
Metabolic Disease
Partial Epilepsy
Drug: 18 FDG

Study Type: Observational
Official Title: Natural History of Metabolic Abnormalities in Children With Epilepsy

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC):

Estimated Enrollment: 80
Study Start Date: April 1992
Estimated Study Completion Date: June 2004
Detailed Description:
We propose to study children with recent onset partial epilepsy, cryptogenic infantile spasms, and idiopathic Lennox-Gastaut Syndrome with serial FDG-PET to elucidate the natural history and evolution of metabolic abnormalities associated with such epilepsies. The severity of the seizure disorder, and cognitive impairment, when present, will be correlated with the presence and extent of focal and global cerebral metabolic abnormalities.

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No


Patients with partial seizures, infantile spasms and Lennox-Gastaut syndrome will be selected.


Evidence of a structural lesion as cause for epilepsy.

Degenerative or metabolic disease.

Inability to comply with the protocol.

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Please refer to this study by its identifier: NCT00001325

United States, Maryland
National Institute of Neurological Disorders and Stroke (NINDS)
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)
  More Information

Publications: Identifier: NCT00001325     History of Changes
Other Study ID Numbers: 920175  92-N-0175 
Study First Received: November 3, 1999
Last Updated: March 3, 2008
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Epileptic Focus
Positron Emission Tomography
Lennox Gastaut Syndrome

Additional relevant MeSH terms:
Epilepsies, Partial
Epilepsy, Generalized
Metabolic Diseases
Spasms, Infantile
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases processed this record on May 26, 2016