Incidence and Types of Cardiac Arrhythmias in the Peri-Ictal Period in Patients Having a Generalized Convulsive Seizure

  • 0From the Departament de Medicina (L.V.), Universitat Autònoma de Barcelona, Spain; NINDS Center for SUDEP Research (CSR) (L.V., G.C., J.P.H., S.J.O., M.O.-U., B.T., O.M., N.J.H., J.S.H., M.R.S.R., N.L., S.T., R.K.S., D.F., M.N., C.A.S., B.G., S.U.S., R.M.H., B.D., L.M.B., O.D., G.B.R., G.-Q.Z., S.D.L.), McGovern Medical School, University of Texas Health Science Center at Houston; Department of Neurology (L.V.), Hospital del Mar, Barcelona, Spain; Division of Cardiology (C.Y.M.), Department of Pediatrics, Texas Children's Hospital, and Department of Molecular Physiology and Biophysics (C.Y.M.), Baylor College of Medicine, Houston, TX; Department of Neurology (G.C., J.P.H., S.J.O., M.O.-U., B.T., O.M., N.J.H., J.S.H., M.R.S.R., N.L., S.T., G.-Q.Z., S.D.L.), McGovern Medical School, University of Texas Health Science Center at Houston; University of Iowa Carver College of Medicine (R.K.S., B.G., G.B.R.), Iowa City; NYU Langone School of Medicine (D.F., O.D.), New York; Sidney Kimmel Medical College (M.N.), Thomas Jefferson University, Philadelphia, PA; Institute of Neurology (C.A.S., B.D.), University College London, United Kingdom; Department of Neurology (S.U.S.), Feinberg School of Medicine, Northwestern University, Chicago, IL; Department of Neurobiology and the Brain Research Institute (R.M.H.), and Department of Neurobiology (J.A.O.), University of California, Los Angeles; and Cedars-Sinai Medical Center (L.M.B.), Los Angeles, CA.

|

Summary

This summary is machine-generated.

Related Concept Videos

Seizures: Classification 01:13

335

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:

Focal aware seizures: In these seizures, the person remains conscious...

Mechanism of Cardiac Arrhythmias 01:28

910

Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.

Cardiac Action Potential 01:30

1.3K

Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials

Disturbances in Heart Rhythm 01:28

933

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...

ECG Interpretation of Arrhythmias I: Sinus Arrhythmias 01:16

209

Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...

Arteries of the Lower Limbs 01:24

187

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...