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A Controlled Clinical Trial of Cathodal DC Polarization in Patients with Refractory Epilepsy

Open access
Fregni, Felipe, Thome‐Souza, Sigride, Nitsche, Michael A., Freedman, Steven D., Valente, Kette D., Pascual‐Leone, Alvaro·2006·Epilepsia

Abstract

Summary: Purpose: To study the effects of cathodal DC polarization in patients with refractory epilepsy and malformations of cortical development (MCDs) as indexed by seizure frequency and epileptiform EEG discharges. Methods: Nineteen patients with MCDs and refractory epilepsy underwent one session of DC polarization (20 min, 1 mA) targeting the epileptogenic focus. The number of epileptiform discharges (EDs) in the EEG and seizures were measured before (baseline), immediately after, and 15 and 30 days after either sham or active DC polarization. Seizure frequency after the treatment was compared with baseline. Results: Active compared with sham DC polarization was associated with a significant reduction in the number of epileptiform discharges [mean ED reduction of −64.3% (95% CI, −122.5% to −6.0%) for the active treatment group and −5.8% (95% CI, −26.8% to 15.2%) for the sham treatment group]. A trend (p = 0.06) was noted for decrease in seizure frequency after active compared with sham treatment [mean seizure frequency decrease of −44.0% (95% CI, −95.0% to 7.1%) for the active treatment group and −11.1% (95% CI, −22.2% to 44.4%) for the sham treatment group]. Conclusions: This randomized, controlled study shows that cathodal DC polarization does not induce seizures and is well tolerated in patients with refractory epilepsy and MCDs. Furthermore, the results suggest that this technique might have an antiepileptic effect based on clinical and electrophysiological criteria.

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Metadata

Authors
Fregni, F., Thome‐Souza, S., Nitsche, M. A., Freedman, S. D., Valente, K. D., & Pascual‐Leone, A.
Venue
Epilepsia
Publisher
Wiley
Published
2006-02
Volume
47
Issue
2
Pages
335-342
ISSN
  • 0013-9580 (ISSN-L)
  • 1528-1167
OpenAlex
W2090809739
Cited by
295
References
36
FWCI
4.60
Type
journal article
Language
en
Open access
bronze

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The paper
Fregni, F., Thome‐Souza, S., Nitsche, M. A., Freedman, S. D., Valente, K. D., & Pascual‐Leone, A. (2006). A Controlled Clinical Trial of Cathodal DC Polarization in Patients with Refractory Epilepsy. Epilepsia. https://doi.org/10.1111/j.1528-1167.2006.00426.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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