title: [Electroencephalogram findings in lesionectomies: preliminary results].
abstract: BACKGROUND
  Use of the electrocorticogram (EcoG) in planning lesionectomies is a controversial subject at present.
  
  
  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.
  
  
  CONCLUSIONS
  Although they are preliminary findings, the results of the study support the usefulness of this technique to guide the surgical procedures used for the treatment of intractable epilepsy.
authors.affiliation: Laboratorio de Neurofisiología Clínica, Centro Internacional de Restauración Neurológica, CIREN, La Habana, Cuba.
authors.forename: L
authors.initials: L
authors.lastname: Morales-Chacón
authors.forename: M
authors.initials: M
authors.lastname: Báez
authors.forename: L
authors.initials: L
authors.lastname: Ochoa
authors.forename: G
authors.initials: G
authors.lastname: López-Flores
authors.forename: B
authors.initials: B
authors.lastname: Estupiñán
authors.forename: M
authors.initials: M
authors.lastname: Zaldivar
mesh_terms: D000293:Adolescent; D000328:Adult; D001254:Astrocytoma / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D001932:Brain Neoplasms / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D003399:Craniotomy; D004569:Electroencephalography; D017034:Epilepsy, Frontal Lobe / Q000209:etiology / Q000503:physiopathology*; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010296:Parietal Lobe / Q000503:physiopathology / Q000601:surgery; D011300:Preoperative Care
vernacular_title: Hallazgos del electrocorticograma en lesionectomías: resultados preliminares.