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Transcranial Alternating Current Stimulation: A Potential Risk for Genetic Generalized Epilepsy Patients (Study Case)
Daniel San-Juan1, Carlos Ignacio Sarmiento2, Axel Hernandez-Ruiz3
1Department of Clinical Research, National Institute of Neurology and Neurosurgery , Mexico City , Mexico.
Transcranial alternating current stimulation (tACS) worsened seizures in a teen with epilepsy initially. However, a seizure-free period was later reported, suggesting potential long-term benefits of this neuromodulation technique.
Area of Science:
- Neurology
- Neuroscience
- Medical Devices
Background:
- Juvenile myoclonic epilepsy (JME) is a significant challenge, often requiring multiple antiepileptic drugs.
- Pharmaco-resistant epilepsy necessitates exploring novel therapeutic approaches.
- Transcranial alternating current stimulation (tACS) is an emerging neuromodulation technique.
Observation:
- A 16-year-old female with drug-resistant JME received tACS.
- The patient experienced an initial increase in seizure frequency and a myoclonic status epilepticus.
- tACS was delivered at 1 mA and 3 Hz over Fp1-Fp2 for 60 minutes daily over 4 days.
Findings:
- Seizure frequency increased by 75% at 1-month follow-up, with myoclonic and tonic-clonic seizures.
- A 24-hour myoclonic status epilepticus occurred, requiring intervention with clonazepam and valproate.
- A 15-day seizure-free period was reported at the 2-month follow-up.
Implications:
- The case highlights the complex and potentially paradoxical effects of tACS in epilepsy.
- Further research is needed to optimize tACS parameters for epilepsy treatment.
- This case contributes to understanding neuromodulation's role in managing refractory epilepsy.
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