Seizure detection with deep neural networks for review of two‐channel EEG

SUMMARY

Ultra long-term EEG registration using minimally invasive low-channel devices is an emerging technology to assess sporadic seizure events. Highly sensitive automatic seizure detection algorithms are needed for semi-automatic evaluation of these prolonged recordings. We describe the design and validation of a deep neural network for two-channel seizure detection. The model is trained using EEG recordings from 590 patients in a publicly available seizure database. These recordings are based on the full 10-20 electrode system and include seizure annotations created by ...

Seguir leyendo →
0

The Association between Family History of Alcohol Use Disorder and Catamenial Epilepsy

Summary

The purpose of this investigation was to determine whether a family history of alcohol use disorder (AUD) might be a risk factor and possible clinical biomarker for catamenial epilepsy. The retrospective case-control data came from 119 women, ages 13-48 years, with intractable seizures. We report the relative risk for positive family history of AUD among women with catamenial epilepsy (Group 1) relative to women with non-catamenial epilepsy (Group 2). The risk ratio (RR) for positive AUD history for Group 1 ...

Seguir leyendo →
0

Quantitative Analysis of Visually Reviewed Normal Scalp EEG Predicts Seizure Freedom Following Anterior Temporal Lobectomy

Abstract

Objective

Anterior temporal lobectomy (ATL) is a widely performed and successful intervention for drug-resistant temporal lobe epilepsy (TLE). However, up to a third of patients experience seizure recurrence within one year after ATL. Despite the extensive literature on presurgical EEG and MRI abnormalities to prognosticate seizure freedom following ATL, the value of quantitative analysis of visually reviewed normal interictal EEG in such prognostication remains unclear. In this retrospective multicenter study, we investigate whether machine learning analysis of normal interictal scalp EEGs ...

Seguir leyendo →
0

Combined electrophysiological and morphological phenotypes in patients with genetic generalized epilepsy and their healthy siblings

Abstract

Objective

Genetic generalized epilepsy is characterized by aberrant neuronal dynamics and subtle structural alterations. We evaluated whether a combination of magnetic and electrical neuronal signals and cortical thickness would provide complementary information about network pathology in GGE. We also investigated if these imaging phenotypes were present in healthy siblings of the patients to test for genetic influence.

Methods

In this cross-sectional study, we analyzed five minutes of resting-state data acquired using electroencephalography (EEG) and magnetoencephalography (MEG) in patients, their siblings, and controls, matched ...

Seguir leyendo →
0

Rare SUDEP SCN5A variants cause changes in channel function implicating cardiac arrhythmia as a cause of death

Summary

Sudden Unexpected Death in Epilepsy (SUDEP) is a leading cause of premature death in epilepsy. The underlying pathological mechanisms are likely to be multi-factorial. Cardiac arrhythmia has been suggested as a cause of death in some patients with SUDEP. SCN5A encodes the cardiac Nav1.5 sodium channel. SCN5A variants that result in either loss or gain of channel function cause cardiac arrhythmias. Rare SCN5A variants have been reported in SUDEP cases but the impact of these variants on channel function is ...

Seguir leyendo →
0

Seizure forecasting using minimally‐invasive, ultra long‐term subcutaneous EEG: (1) Individualized intra‐patient models

Summary

Objective

One of the most disabling aspects of living with chronic epilepsy is the unpredictability of seizures. Cumulative research in the past decades has advanced our understanding of the dynamics of seizure risk. Technological advances have recently made it possible to record pertinent biological signals, including EEG, continuously. We aimed to assess whether patient-specific seizure forecasting is possible using remote, minimally invasive ultra long-term subcutaneous EEG.

Methods

We analyzed a two-center cohort of ultra long-term subcutaneous EEG recordings, including six patients with drug-resistant ...

Seguir leyendo →
0

Ambient air pollution and epileptic seizures: a panel study in Australia

Abstract

Objective

Emerging evidence has shown that ambient air pollution affects brain health, but little is known about its effect on epileptic seizures. This work aimed to assess the association between daily exposure to ambient air pollution and the risk of epileptic seizures.

Methods

This study used epileptic seizure data from two independent data sources (NeuroVista and Seer App seizure diary). In the NeuroVista dataset, 3273 seizures were recorded using intracranial electroencephalography (iEEG) from 15 participants with refractory focal epilepsy in Australia in 2010-2012. ...

Seguir leyendo →
0

COVID‐19 vaccine in patients with Dravet syndrome: Observations and real‐world experiences

Abstract

Objectives

Vaccination against SARS-CoV-2 virus is a primary tool to combat the COVID-19 pandemic. However, vaccination is a common seizure trigger in individuals with Dravet syndrome (DS). Information surrounding COVID-19 vaccines side-effects in patients with DS would aid caregivers and providers in decisions for and management of COVID-19 vaccination.

Methods

A survey was emailed to the Dravet Syndrome Foundation’s (DSF) Family Network and posted to the Dravet Parent & Caregiver Support Group on Facebook between May and August 2021. Deidentified information obtained included ...

Seguir leyendo →
0

Headache in idiopathic/genetic epilepsy: Cluster analysis in a large cohort

Abstract

Objective

The link between headache and epilepsy is more prominent in patients with idiopathic/genetic epilepsy (I/GE). We aimed to investigate the prevalence of headache and to cluster patients with regard to their headache and epilepsy features.

Methods

Patients aged 6–40 years, with a definite diagnosis of I/GE, were consecutively enrolled. The patients were interviewed using standardized epilepsy and headache questionnaires, and their headache characteristics were investigated by experts in headache. Demographic and clinical variables were analyzed, and patients were clustered according to their epilepsy ...

Seguir leyendo →
0

Diffusion tractography predicts propagated high‐frequency activity during epileptic spasms

Summary

Objective

Determine the structural networks that constrain propagation of ictal oscillations during epileptic spasm events, and compare observed propagation patterns across patients with successful or unsuccessful surgical outcomes.

Methods

Subdural electrode recordings of 18 young patients (age 1–11 years) were analyzed during epileptic spasm events to determine ictal networks and quantify the amplitude and onset time of ictal oscillations across the cortical surface. Corresponding structural networks were generated with diffusion MRI tractography by seeding the cortical region associated with the earliest average oscillation ...

Seguir leyendo →
0
Página 8 de 175 «...678910...»