BOL-MARROQUIN, Byron Daniel et al. Presurgical approach in drug-resistant epilepsy. []. , 31, 1, pp.85-95. ISSN 2631-2581.  https://doi.org/10.46997/revecuatneurol31100085.

Epilepsy is one of the main reasons for consultation in general neurology. It is a highly prevalent pathology, with a high impact on the quality of life of these patients. There is a percentage of drug resistance between 30% and 40% of epilepsy cases, and therefore it is very important to know the surgical alternative, as well as the importance of a timely and prompt referral to a specialized surgery center of epilepsy given the high possibility of seizure remission or improvement towards less disabling seizures, with a notable improvement in quality of life. The evaluation process of a patient with drug-resistant focal epilepsy who is a candidate for epilepsy surgery is based on a set of non-invasive diagnostic techniques. The evaluation process is based on the seizure locating semiology, an adequate protocol for the imaging study, electroencephalogram, and interictal and ictal video-monitoring, and neuropsychological evaluation in all cases, and in other functional studies such as computed tomography are necessary, ictal and interictal single-photon emission, positron emission tomography, and also invasive monitoring techniques, through which it is possible to proceed to surgery. A review of the literature is made.

: epilepsy; drug-resistant epilepsy; epilepsy surgery.

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