Electroencephalography ()
- Electroencephalography (EEG) Introduction
- Risks
- EEG Preparation
- During the Procedure
- After the Procedure
- Next Steps
- When to Seek Medical Care
- Results
- Synonyms and Keywords
- References
- Authors and Editors
Electroencephalography (EEG) Introduction
The electroencephalogram (EEG) is a measure of brain waves. It is a readily available test that provides evidence of how the brain functions over time.
- The EEG is used in the evaluation of brain disorders. Most commonly it is used to show the type and location of the activity in the brain during a seizure. It also is used to evaluate people who are having problems associated with brain function. These problems might include confusion, coma, tumors, long-term difficulties with thinking or memory, or weakening of specific parts of the body (such as weakness associated with a stroke).
- An EEG is also used to determine brain death. It may be used to prove that someone on life-support equipment has no chance of recovery.
- Scientists first captured and recorded brain waves in dogs in 1912. By the 1950s the EEG was used commonly throughout the United States.
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Important Safety Information
Vimpat (lacosamide) is a medicine that is used with other medicines to treat partial onset seizures in patients 17 years of age and older with epilepsy. Vimpat is generally well-tolerated, but may not be for everyone. Ask your doctor if Vimpat is right for you. Antiepileptic drugs, including Vimpat, may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Call your healthcare provider right away if you have new or worsening symptoms of depression, any unusual changes in mood or behavior, or suicidal thoughts, behavior, or thoughts about self harm that you have never had before or may be worse than before. Please see additional patient information in the Medication Guide at the end of the full prescribing information. This information does not take the place of talking with your healthcare provider about your condition or your treatment. Please see additional Patient Safety Information
Epilepsy
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Normal EEG Variants »
The phrases "electroencephalogram (EEG) variant waves" or "normal EEG variants" refer to waves that are rare or unusual but not generally abnormal.
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