Stereotactic investigations in frontal lobe epilepsies

The aim of a Stereo-EEG investigation is to verify and prove that the hypothesis, done on the basis of the preliminary investigations (clinical, EEG, neuroradiological), are correct. This task is particularly hard in frontal lobe epilepsies, because of anatomical and physiopathological reasons. Amon...

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Bibliographic Details
Published in:	Acta neurochirurgica. Supplementum Vol. 46; p. 9
Main Authors:	Munari, C, Giallonardo, A T, Brunet, P, Broglin, D, Bancaud, J
Format:	Journal Article
Language:	English
Published:	Austria 1989
Subjects:	Adolescent Adult Brain Mapping - instrumentation Child Child, Preschool Dominance, Cerebral - physiology Electrodes, Implanted Electroencephalography - instrumentation Epilepsies, Partial - physiopathology Epilepsies, Partial - surgery Evoked Potentials Frontal Lobe - physiopathology Frontal Lobe - surgery Humans Middle Aged Stereotaxic Techniques - instrumentation
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Summary:	The aim of a Stereo-EEG investigation is to verify and prove that the hypothesis, done on the basis of the preliminary investigations (clinical, EEG, neuroradiological), are correct. This task is particularly hard in frontal lobe epilepsies, because of anatomical and physiopathological reasons. Among 277 consecutive patients, 86 were explored for a probable frontal epilepsy. The stereotactically introduced electrodes. 1) simultaneously record the electrical activity on both, mesial and lateral cortical areas, and, 2) in 3/4 of cases also investigate extra-frontal, mainly temporal, areas. Two small, non-surgical haematomas were provoked in one patient. The spatial trajectory of the discharges, evaluated with this methodology, permits of limiting the surgical removal in many cases.