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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Antiepileptic Drugs: Calcium Channel Blockers01:17

Antiepileptic Drugs: Calcium Channel Blockers

Calcium channel blockers, a class of antiepileptic drugs, regulate the flow of calcium ions within neurons.
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
Cardiopulmonary Resuscitation IV: Pharmacological Management01:25

Cardiopulmonary Resuscitation IV: Pharmacological Management

Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...
Seizures: Classification01:13

Seizures: Classification

Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Seizures l: Introduction01:20

Seizures l: Introduction

Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...

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Introduction and overview. Sudden unexpected death in epilepsy.

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Rates of twinning before and after fortification of foods in the US with folic acid, Texas, 1996 to 1998.

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Related Experiment Video

Updated: Jun 18, 2026

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus
08:28

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus

Published on: April 5, 2011

Cardiac deaths in epilepsy.

J F Annegers1

  • 1School of Public Health, University of Texas-Houston, 1200 Hermon Pressler Boulevard, Houston, TX 77030, U.S.A.

Epilepsia
|November 14, 2009
PubMed
Summary
This summary is machine-generated.

Patients with epilepsy face higher mortality rates, particularly from heart disease. This study highlights increased risks for ischemic heart disease and sudden cardiac death in epilepsy patients.

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Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy
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Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

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Last Updated: Jun 18, 2026

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus
08:28

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus

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Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy
11:54

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Published on: January 29, 2018

Area of Science:

  • Neurology
  • Cardiology
  • Epidemiology

Background:

  • Epilepsy is a neurological disorder associated with increased mortality.
  • The relationship between epilepsy and cardiovascular disease requires further investigation.

Purpose of the Study:

  • To investigate heart disease mortality and morbidity in a cohort of patients with epilepsy.
  • To compare cardiovascular outcomes in epilepsy patients to the general population.

Main Methods:

  • A cohort of 725 incident epilepsy cases was followed for approximately 10,000 person-years.
  • Mortality rates and incidence of ischemic heart disease were analyzed.
  • Standardized mortality ratios (SMR) were calculated for overall mortality, ischemic heart disease, and sudden death.

Main Results:

  • The epilepsy cohort had a 2.1 times higher overall mortality rate than the general population.
  • Ischemic heart disease incidence was higher in the epilepsy cohort (SMR=1.6).
  • Sudden death as an initial manifestation of heart disease had an SMR of 2.3, notably higher (3.9) in remote symptomatic epilepsy.

Conclusions:

  • Patients with epilepsy exhibit elevated risks for both overall mortality and specific cardiovascular events like ischemic heart disease and sudden cardiac death.
  • The findings suggest a significant link between epilepsy and cardiovascular health, with variations based on epilepsy type.
  • Discrepancies with recent sudden unexpected death in epilepsy studies warrant further discussion and research into underlying mechanisms.