Ann Clin Case Rep | Volume 4, Issue 1 | Case Report | Open Access

HD-tDCS in a Patient with Intellectual Disability and Focal Epilepsy: Case Report

Javad Hassannia Roushan1*, Mahsa Arzani2, Mahmood Motamedi2 and Sanaz Ahmadi Karvigh2

1Department of Cognitive Neuroscience, Ferdowsi University of Mashhad, Iran
2Department of Neurology, Tehran University of medical sciences, Iran

*Correspondance to: Javad Hassannia Roushan 

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HD-tDCS is a new non-invasive brain stimulation method that improves current focality and intensity. In this study, the aim was to report a patient with intellectual disability and refractory focal epilepsy who participated in HD-tDCS intervention for his seizure control and assessing the quality of cognitive function variation. Five days LTM evaluation results show that there was a distinct focal epileptogenic lesion in the C4. We recorded EEG and used IVA+test in three steps; before the HD-tDCS sessions (10 sessions), at the end of the last stimulation and one month after. Attention performance showed little improvement in scores with regard to the IVA+test. The EEG studies showed a short-term benefit in reducing the generalized epilepsy severity. However, this effect did not last up to a one-month evaluation. More studies needed to be done in this area.


HD-tDCS; Intellectual disability; Focal epilepsy; Attention performance


Roushan JH, Arzani M, Motamedi M, Karvigh SA. HD-tDCS in a Patient with Intellectual Disability and Focal Epilepsy: Case Report. Ann Clin Case Rep. 2019; 4: 1589.

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