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Effectiveness of the ketogenic diet in a broad range of seizure types and EEG features for severe childhood epilepsies

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Beniczky S, Miranda MJ, Alving J, Heber Povlsen J, Wolf P. Effectiveness of the ketogenic diet in a broad range of seizure types and EEG features for severe childhood epilepsies.

Acta Neurol Scand: 2010: 121: 58–62.

© 2009 The Authors Journal compilation © 2009 Blackwell Munksgaard. Background – 

Ketogenic diet (KD) is an effective treatment for pharmacoresistant epilepsy: more than half of the patients show a greater than 50% reduction in seizures. Objective – 

To identify clinical or electroencephalogram (EEG) variables predicting the response to KD. Methods – 

Clinical and EEG data were retrospectively analysed from 50 consecutive patients treated by KD for severe, pharmacoresistant epilepsy. Most of the patients (70%) had retarded mental and motor development. Results – 

Three months after the start of the KD two-thirds (33) of the patients were responders (had a more than 50% reduction in seizure frequency). The presence of epileptiform EEG discharges in the temporal region correlated with an unfavourable response (P = 0.03). The presence of bilateral synchronous epileptiform discharges, and the presence of complex partial seizures approached significance but all other variables did not. Conclusions – 

Our results further support that KD is efficient in a wide variety of epileptic patients with a broad range of EEG features. However, patients with epileptiform discharges in the temporal region are less likely to achieve therapeutic response.

Keywords: electroencephalogram; epilepsy; ketogenic diet; predictors

Document Type: Research Article


Affiliations: Danish Epilepsy Centre, Dianalund, Denmark

Publication date: January 1, 2010

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