Publications by authors named "Miguel Arevalo-Astrada"
Article Synopsis
- The study aimed to investigate the role of the posterior cingulate gyrus (PCG) in mesial temporal lobe seizures (MTLS) by reviewing SEEG recordings from patients with electrode implantation in the PCG.! -
- Out of 97 patients analyzed, 9 patients with MTLS were included, revealing that the PCG was the primary site of seizure propagation in the majority of cases, indicating its importance in seizure spread.! -
- The findings suggest that fast propagation to the PCG could be a sign of favorable surgical outcomes after temporal lobe surgery, highlighting the need for further research in this area.!
Objective: To compare the rate of EEG and MRI abnormalities in psychogenic nonepileptic seizures (PNES) patients with and without suspected epilepsy. Patients were also compared in terms of their demographic and clinical profiles.
Methods: A retrospective analysis of 271 newly diagnosed PNES patients admitted to the epilepsy monitoring unit between May 2000 and April 2008, with follow-up clinical data collected until September 2015.
Purpose: To provide a descriptive analysis on the presurgical evaluation and surgical management of a cohort of patients with stroke related epilepsy (SRE).
Methods: We retrospectively examined the clinical characteristics, results of non-invasive and invasive presurgical evaluation, surgical management and outcome of consecutive patients with drug-resistant SRE in our institution from January 1, 2013 to January 1, 2020.
Results: Twenty-one of 420 patients (5%) who underwent intracranial EEG (iEEG), resective epilepsy surgery and/or vagus nerve stimulation (VNS) placement, had SRE.
Objective: To determine the contribution of stereo-EEG for localization purpose in patients with a visible lesion on MRI.
Background: Intracranial EEG is often used to localize the epileptogenic focus in patients with non-lesional focal epilepsy. Its role in cases where a lesion is visible on MRI can be even more complex and the relationship between the lesion and the seizure onset has rarely been addressed.
Objective: To determine if the ictal onset recorded with stereoelectroencephalography (SEEG) during clusters of seizures is reliable to identify the laterality of the epileptogenic zone.
Background: In the presurgical evaluation of patients with focal drug-resistant epilepsy, the presence of bilateral ictal onset is usually associated with a poor surgical outcome. It has been reported that the laterality of seizures can be influenced during seizure clusters, although this remains controversial.