Epilepsia. Official Journal of the International League Against Epilepsy

Summary

Objectives

We aimed to describe intracerebral aspects of postictal generalized electroencephalography suppression (PGES) following focal to bilateral tonic–clonic (“secondarily generalized tonic–clonic”) seizures (GTCS) recorded using stereoelectroencephalographic (SEEG), and to correlate these with electroclinical features.

Methods

Three independent observers scored semiologic and SEEG features. Patient and epilepsy characteristics were collected. Descriptive statistics and multivariate analysis were performed. The operational definition of PGES on SEEG used strict criteria (absence of visible signal at 20 μV/mm amplitude, in all readable channels). Postictal regional suppression (RS) was identified ...

Summary

Objective

PCDH19‐related epilepsy is an epileptic syndrome with infantile onset, characterized by clustered and fever‐induced seizures, often associated with intellectual disability (ID) and autistic features. The aim of this study was to analyze a large cohort of patients with PCDH19‐related epilepsy and better define the epileptic phenotype, genotype‐phenotype correlations, and related outcome‐predicting factors.

Methods

We retrospectively collected genetic, clinical, and electroencephalogram (EEG) data of 61 patients with PCDH19‐related epilepsy followed at 15 epilepsy centers. All consecutively performed EEGs were analyzed, totaling 551. We ...

Summary

Objective

To determine annual incidence, etiology, severity, and short‐ and long‐term mortality of first‐time, nonanoxic status epilepticus (SE) in adults in a population‐based retrospective cohort study.

Methods

We systematically identified all episodes of SE in the year 2014 on the island of Funen. Patients with SE due to anoxia, patients with recurrent SE, and patients <18 years old were excluded. Nonconvulsive SE in coma was diagnosed according to the Salzburg criteria. Etiology, semiology, modified Rankin Scale (mRS) at discharge, survival, and the Status Epilepticus ...

Summary

Objective

Low‐frequency fiber‐tract stimulation has been shown to be effective in treating mesial temporal lobe epilepsies through activation of the hippocampal commissure in rodents and human patients. The corpus callosum is a major pathway connecting the two hemispheres of the brain; however, few experiments have documented corpus callosum stimulation. The objective is to determine the efficacy of corpus callosum stimulation at low frequencies to suppress cortical seizures.

Methods

4‐Aminopyridine was injected in the primary motor cortex of 24 rats under anesthesia. Recording electrodes ...

Summary

Objective

In this study, we seek to analyze the determinants of the intracranial electroencephalography seizure onset pattern (SOP) and the impact of the SOP in predicting postsurgical seizure outcome.

Methods

To this end, we analyzed 820 seizures from 252 consecutive patients explored by stereo‐electroencephalography (total of 2148 electrodes), including various forms of focal refractory epilepsies. We used a reproducible method combining visual and time‐frequency analyses.

Results

We described eight SOPs: low‐voltage fast activity (LVFA), preictal spiking followed by LVFA, burst of polyspikes followed by LVFA, ...

Summary

Objective

The definition of drug‐resistant epilepsy (DRE) affects case identification and treatment, and impacts prevalence or incidence estimates and health burden estimation in epidemiology. The objective of this systematic review is to evaluate the consistency between definitions of DRE in the literature and the official definition in the International League Against Epilepsy (ILAE) guidelines, and to estimate the incidence, prevalence, and risk factors for DRE.

Methods

MEDLINE and EMBASE were searched for observational studies of DRE published between January 1980 and July 2015. ...

Summary

Objective

Stevens‐Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare and potentially fatal adverse skin reactions that are most commonly triggered by certain medications. One class of medications that has been highly associated with SJS/TEN reactions is antiepileptic drugs (AEDs). We sought to quantify the risk of SJS/TEN associated with AEDs as a class, as well as individual AEDs, in the United States.

Methods

An analysis was performed of the US Food and Drug Administration Adverse Event Reporting System (FAERS) from July ...

Summary

Objective

Onset of epilepsy before 2 years of age is associated with poor cognitive outcome; however, the natural course of the range of epilepsies that occur at this age is unknown. The aim of this prospective community‐based study was to investigate the neuropsychological development of infants with newly diagnosed epilepsy longitudinally and to identify the clinical factors that predict long‐term impairment.

Methods

Sixty‐six infants <24 months of age were enrolled in the baseline phase of this study; 40 were seen again at 1‐year follow‐up and ...