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Radiofrequency ablation during stereoelectroencephalography: from diagnostic tool to therapeutic intervention. Illustrative case.
J Neurosurg Case Lessons 2023 August 15
BACKGROUND: Radiofrequency thermocoagulation (RFTC) during intracranial stereoelectroencephalography (sEEG) was first described as a safe technique for creating lesions of epileptic foci in 2004. Since that time, the method has been applied as a diagnostic and/or palliative intervention. Although widely practiced in European epilepsy surgical programs, the technique has not been popularized in the United States given the lack of Food and Drug Administration (FDA)-approved technologies permitting safe usage of in situ sEEG electrodes for this purpose.
OBSERVATIONS: The authors present a case report of a young female patient with refractory left neocortical temporal lobe epilepsy undergoing sEEG electrode implantation, who underwent sEEG-guided RFTC via a stereotactic temperature-sensing pallidotomy probe. Although used as a diagnostic step in her workup, the patient has remained seizure-free for nearly 18 months.
LESSONS: The use of in situ sEEG electrodes for RFTC remains limited in the United States. In this context, this case highlights a safe alternative and temporizing approach to performing diagnostic sEEG-guided RFTC, using a temperature-sensing pallidotomy probe to create small, precise stereotactic lesions. The authors caution careful consideration of this technique as a temporary work-around solution while also highlighting the rising need for new FDA-approved technologies for safe RFTC through in situ temperature-sensing sEEG electrodes.
OBSERVATIONS: The authors present a case report of a young female patient with refractory left neocortical temporal lobe epilepsy undergoing sEEG electrode implantation, who underwent sEEG-guided RFTC via a stereotactic temperature-sensing pallidotomy probe. Although used as a diagnostic step in her workup, the patient has remained seizure-free for nearly 18 months.
LESSONS: The use of in situ sEEG electrodes for RFTC remains limited in the United States. In this context, this case highlights a safe alternative and temporizing approach to performing diagnostic sEEG-guided RFTC, using a temperature-sensing pallidotomy probe to create small, precise stereotactic lesions. The authors caution careful consideration of this technique as a temporary work-around solution while also highlighting the rising need for new FDA-approved technologies for safe RFTC through in situ temperature-sensing sEEG electrodes.
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