Metabolic Abnormalities in Children With Epilepsy

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Brief Title

Metabolic Abnormalities in Children With Epilepsy

Official Title

Natural History of Metabolic Abnormalities in Children With Epilepsy

Brief Summary

      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

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.

Study Type



Generalized Epilepsy


18 FDG


* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information

Recruitment Status


Estimated Enrollment


Start Date

April 1992

Completion Date

June 2004

Eligibility Criteria


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


        Evidence of a structural lesion as cause for epilepsy.

        Degenerative or metabolic disease.

        Inability to comply with the protocol.




N/A - N/A

Accepts Healthy Volunteers



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Location Countries

United States

Location Countries

United States

Administrative Informations



Organization ID


Secondary IDs


Study Sponsor

National Institute of Neurological Disorders and Stroke (NINDS)

Study Sponsor

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Verification Date

June 2004