Table 2.

Summary of EEG, MRI and lab/biopsy results of patients included in the study.

Patient #	EEG	MRI	Lab/biopsy results
1	Burst suppression pattern	Intraventricular hemorrhage, subdural hematomas, ventriculomegaly. delayed myelination, bi-thalamic lesions, abnormal signal intensity/restricted diffusion at myelinated areas including the posterior limb of the internal capsule	Elevated plasma and CSF glycine
2	Encephalopathic pattern, generalized spike-wave complexes	Normal	Lafora bodies in axillary skin biopsy
3	Encephalopathic pattern	Cerebral atrophy	-
4	Poor organization, generalized sharp/wave complexes and slow sharp delta waves of high voltage, hypsarrhythmia	Delay of myelination, decrease in cerebral volume	-
5	Hypsarrhythmia	Corpus callosum dysgenesis, colpocephaly with dilatation of the occipital horns bilaterally	Lactic acidosis
6	Generalized sharp wave complexes	Unrevealing	-
7	Compatible with generalized epilepsy	Generalized atrophy, especially at frontal lobes	-
8	Interictal epileptic activity on left dorsal frontocentral region, midline	Abnormal periventricular and occipital white matter, old infarct of the left basal ganglia	-
9	Generalized sharp wave complexes	Hypoplasia of posterior part of corpus callosum.	-
10	Burst suppression pattern, hypsarrhythmia, bilateral occipital slow waves, focal epileptic discharges	Normal	-

Abbreviations: mo.: months, y.: years, MRI: Magnetic resonance Imaging, EEG: Electroencephalogram, CSF: cerebrospinal fluid.