The characterization of a seizure as generalized or focal onset depends on a basic knowledge of the underlying pathophysiology. Recently, an uncommon phenomenon in generalized epilepsy-evolution of seizures from generalized to focal followed by secondary generalization-was reported for the first time. We describe a 15-year-old boy, initially classified as having partial epilepsy, who had a typi...

The aim of this study is to compare ILAE classification (1989) and Panayiotopoulos' criteria (1997) for absence epilepsies. We studied 455 typical absences (ILAE, 1981) by video-EEG in 43 patients with normal neurological and neuroradiological examinations and interictal EEG with spike-wave complexes higher than 2.5Hz. Syndromic diagnosis was possible in 60.5% and 67.4% of the patients using IL...

Background: Absence epilepsy is a brief non-convulsive seizure that associated with sudden abrupt in consciousness. Because of the unpredictable occurrence of absence seizures and ethic limitation of human investigation on the pathogenesis and drug assessment led to the tendency to animal models. The aim of this paper is reviewing the advantages and disadvantages of several animal models of non...

Reading epilepsy is associated with a variety of perceptual, motor and/or high level cognitive factors. A case of primary reading epilepsy is reported in which comprehension was the effective stimulus in provoking epileptiform activity.

[This corrects the article on p. 42 in vol. 4, PMID: 23717298.].

Unlike Mendelian epilepsies, complex epilepsies may be due to the effect of several or multiple susceptibility genes. Association studies have been used in the past decade to help identify common genetic variants underpinning complex epilepsies. However, as the data in the Epilepsy Genetic Association Database (epiGAD) show, many of these studies have been negative, or have shown confl icting r...

In the present paper we consider the on-off intermittency phenomena observed in time series of spontaneous paroxysmal activity in rats with genetic absence epilepsy. The method to register and analyze the electroencephalogram with the help of continuous wavelet transform is also suggested.

We studied the clinical and electroencephalographic features in 30 children who were diagnosed with childhood absence epilepsy. According to their EEG pattern we divided the 30 children into two groups: group A: 11 children with classical absences whose ictal EEG showed primary generalized spikes and waves and group B: 19 children with frontal onset of the EEG epileptic abnormalities ('frontal ...

OBJECTIVE Absence seizures in childhood absence epilepsy are initiated in the thalamocortical (TC) system. We investigated if these seizures result from altered development of the TC system before the appearance of seizures in mice containing a point mutation in γ-aminobutyric acid A (GABAA ) receptor γ2 subunits linked to childhood absence epilepsy (R43Q). Findings from conditional mutant mice...