Publicación Oficial de la Sociedad Ecuatoriana de Neurología, de la Liga Ecuatoriana Contra la Epilepsia y de la Sociedad Iberoamericana de Enfermedad Cerebrovascular

Mesial Hippocampal Sclerosis

 

Estudio de 20 pacientes con epilepsia del lóbulo temporal medial con esclerosis del hipocampo.

In order to more precisely define temporomedial epilepsy with hippocampal sclerosis, we evaluated 20 patients with magnetic resonance imaging findings of it: 1. Abnormal high signal of the hippocampus on T2 and Flair, 2. Hippocampal atrophy and 3. Structural deformity in hippocampus. 6 patients (55%) had history of febrile seizures during early chilhood or infancy. 4 patients (36%) had head trauma and 1 patient (9%) had neonatal hypoxia. The mean age of seizure onset was 18 years. All patients had complex partial seizures at onset.15 patients (75%) had auras, with abnormal abdominal visceral sensation being the most common type (40%). 11 patients with identified risk factors had an interval between the presumed cerebral insult and the development of habitual seizures, with a mean seizure free interval of 11 years. All patients had oroalimentary automatisms, and 14 patients (70%) also had other automatisms. 9 patients (45%) had lateralizing signs, 6 patients had contralateral version of the head and eyes and 3 patients had dystonic posturing of the contralateral upper extremity. 15 patients (75%) had an abnormal electroencephalogram. 13 patients (87%) showed paroxysmal abnormalities that were localized in the anterior temporal region, over the side of the hippocampal sclerosis in 12 patients and over one temporal lobe in 1 patient with bilateral hippocampal sclerosis with paroxysmal activity. . 2 patients (13%) had interictal bilateral temporal slowing, these patients had bilateral hippocampal sclerosis.

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