Stereoelectro-
encephalography
(sEEG)
Stereoelectroencephalography (sEEG) is a specialized test that records brain activity from inside the brain to help identify where seizures begin.
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Epilepsy & Seizures Program
We have decades of experience caring for patients with Epilepsy, pioneering minimally invasive treatments and leading research for new treatments to improve patient outcomes.
What Is Stereoelectro-
encephalography (sEEG)?
Stereoelectroencephalography, also called sEEG, is a procedure used to record electrical activity from deep inside the brain. It uses thin electrodes that are placed in carefully selected areas to help physicians understand where seizures start and how they spread.
sEEG is most often considered for people with epilepsy whose seizures are difficult to control or when noninvasive testing has not clearly shown the seizure source. The information gathered during sEEG can help guide next steps in care, including whether another treatment may be appropriate.
Why Choose Baptist Health?
Baptist Health Brain & Spine Care provides coordinated evaluation for people with complex seizure disorders. For patients being considered for sEEG, care often involves neurologists and neurosurgeons working together to review symptoms, brain imaging, EEG findings and treatment history.
Because sEEG is used to answer highly specific questions about seizure location, patients benefit from a careful, step-by-step approach. Experts at Baptist Health focus on personalized planning, clear communication and treatment decisions based on each patient’s needs and test results.
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Frequently Asked Questions
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It is used to help pinpoint where seizures begin in the brain. This can be especially helpful when seizures are hard to control or when standard tests do not provide a clear answer.
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No. A regular EEG records brain activity from electrodes placed on the scalp. sEEG records activity from electrodes placed inside the brain, which can provide more detailed information in selected cases.
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People with epilepsy that remains uncontrolled with medication may be considered. It may also be recommended when seizure activity is difficult to localize with imaging or scalp EEG alone. Final candidacy depends on a full medical evaluation.
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sEEG is primarily a diagnostic procedure. Its purpose is to gather detailed information that can help physicians decide whether another epilepsy treatment may be appropriate.
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The length of monitoring varies. Some patients may need only a short period, while others may need several days so the care team can capture enough seizure activity to answer key questions.
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Possible risks include bleeding, infection, swelling, pain and complications related to anesthesia or the brain areas being studied. Your physician will explain the specific risks and benefits based on your situation.
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Yes, patients are usually monitored in the hospital after the electrodes are placed so the care team can safely record brain activity and respond if a seizure occurs.
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After the electrodes are removed, your care team reviews the findings and discusses next steps. Depending on the results, this may include medication adjustments or planning for another epilepsy treatment.
Our Location
Our Epilepsy & Seizures program connects patients with expert care at Baptist Health Kenneth C. Griffin Neuroscience Institute and Marcus Neuroscience Institute.
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Our researchers play a vital role in helping us better understand brain and spine disease. They participate in a wide variety of clinical trials dedicated to improving treatments that will ultimately lead to better patient outcomes. Learn more about their work and what it means to be involved in a clinical trial.
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