Home Publications Research Grants Inventions & Patents Awards Additional Research Activities Faculties & Institutions Research Areas

Estereoelectroencefalografía en la evaluación prequirúrgica de epilepsias focales refractarias: experiencia de un centro de epilepsia

Toledano R, Martínez-Álvarez R, Jiménez-Huete A, García-Morales I, Aledo-Serrano , Cabrera W, Rey G, Campo P, Gómez-Angulo JC, Blümcke I, Álvarez-Linera J, del Pozo JM, Gil-Nagel A (2019)

---

Publication Language: Spanish

Publication Type: Journal article

Publication year: 2019

Journal

DOI: 10.1016/j.nrl.2019.05.002

Abstract

Objective: Stereoelectroencephalography (SEEG) is a technique for preoperative evaluation of patients with difficult-to-localise refractory focal epilepsy (DLRFE), enabling the study of deep cortical structures. The procedure, which is increasingly used in international epilepsy centres, has not been fully developed in Spain. We describe our experience with SEEG in the preoperative evaluation of DLRFE. Material and methods: In the last 8 years, 71 patients with DLRFE were evaluated with SEEG in our epilepsy centre. We prospectively analysed our results in terms of localisation of the epileptogenic zone (EZ), surgical outcomes, and complications associated with the procedure. Results: The median age of the sample was 30 years (range, 4-59 years); 27 patients (38%) were women. Forty-five patients (63.4%) showed no abnormalities on brain MR images. A total of 627 electrodes were implanted (median, 9 electrodes per patient; range, 1-17), and 50% of implantations were multilobar. The EZ was identified in 64 patients (90.1%), and was extratemporal or temporal plus in 66% of the cases. Follow-up was over one year in 55 of the 61 patients undergoing surgery: in the last year of follow-up, 58.2% were seizure-free (Engel Epilepsy Surgery Outcome Scale class I) and 76.4% had good outcomes (Engel I-II). Three patients (4.2%) presented brain haemorrhages. Conclusion: SEEG enables localisation of the EZ in patients in whom this was previously impossible, offering better surgical outcomes than other invasive techniques while having a relatively low rate of complications.

Authors with CRIS profile

Involved external institutions

How to cite

APA:

Toledano, R., Martínez-Álvarez, R., Jiménez-Huete, A., García-Morales, I., Aledo-Serrano, ., Cabrera, W.,... Gil-Nagel, A. (2019). Estereoelectroencefalografía en la evaluación prequirúrgica de epilepsias focales refractarias: experiencia de un centro de epilepsia. Neurologia. https://dx.doi.org/10.1016/j.nrl.2019.05.002

MLA:

Toledano, R., et al. "Estereoelectroencefalografía en la evaluación prequirúrgica de epilepsias focales refractarias: experiencia de un centro de epilepsia." Neurologia (2019).

BibTeX: Download