Etiology of epilepsies of 663 patients.
| Etiology of epilepsies | Frequency |
|---|---|
| Genetic n (%) | 117 (17.7) |
| Electro clinical syndromes (presumed genetic) | 109 |
| Others | 8 |
| Structural – metabolic n (%) | 278 (41.9) |
| Perinatal insults | 89 |
| Malformation of cortical development | 26 |
| Infection | 23 |
| Neurocutaneous syndromes | 23 |
| Trauma | 16 |
| Hydrocephalus | 12 |
| Metabolic disorders | 9 |
| Vascular anomaly | 7 |
| Tumor | 5 |
| Stroke | 3 |
| Others: | 54 |
| Corpus collosum | 10 |
| Brain atrophy | 23 |
| Microcephaly | 8 |
| Brain cysts | 10 |
| Delay myelination | 3 |
| Distinctive constellations: | 11 |
| Mesial temporal lobe epilepsy with hippocampal sclerosis | 10 |
| Rasmussen syndrome | 1.0 |
| Unknown n (%) | 268 (40.4) |
| Electro clinical syndromes | 82 |
| Other types of epilepsy: | 186 |
| Focal temporal lobe | 45 |
| Focal frontal lobe | 27 |
| Focal parietal lobe | 5 |
| Focal occipital lobe | 4 |
| Focal (undetermined origin) | 19 |
| Generalized | 70 |
| Mixed seizure | 16 |
| Total n (%) | 663 (100) |