Hallazgos del electrocorticograma en lesionectomías: resultados preliminares
Introduction. Use of the electrocorticogram (EcoG) in planning lesionectomies is a controversial subject at present.Material and methods. We describe a series of 5 patients with epileptic crises, 3 with arteriovenous malformations in whom the lesion was completely resected, followed by postoperative angiography, and two with gliomas with low grade malignancy in whom iridium 192 was implanted. Results. 1. The most frequent reason for consultation was convulsions. 2. In our series of patients the commonest site was the frontal zone of the right hemisphere. 3. Potentials with epileptiform characteristics were registered at the edges of the lesions and occasionally over the lesion itself. In two cases electro-clinical crises were seen. 4. The lesions were resected from normal tissue independently of the EcoG results.Conclusion.Althoughtheyarepreliminaryfindings,the results of the study support the usefulness of this technique to guide the surgical procedures used for the treatment of intractable epilepsy
Resultados 1. El motivo de consulta más frecuente resultó ser las convulsiones; 2. La localización frontal en el hemisferio derecho fue la más frecuente en nuestra muestra; 3. Se registraron potenciales con características epileptiformes en los márgenes de las lesiones y de forma ocasional sobre la lesión. En dos casos se registraron crisis electroclínicas, y 4. Las lesiones fueron resecadas del tejido normal independientemente de los resultados del ECoG.
Conclusión Los resultados del trabajo, aunque preliminares, avalan la utilidad de esta técnica para guiar los procederes quirúrgicos utilizados en el tratamiento de las epilepsias intratables
